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Ultimate glossary of crypto currency terms, acronyms and abbreviations

I thought it would be really cool to have an ultimate guide for those new to crypto currencies and the terms used. I made this mostly for beginner’s and veterans alike. I’m not sure how much use you will get out of this. Stuff gets lost on Reddit quite easily so I hope this finds its way to you. Included in this list, I have included most of the terms used in crypto-communities. I have compiled this list from a multitude of sources. The list is in alphabetical order and may include some words/terms not exclusive to the crypto world but may be helpful regardless.
2FA
Two factor authentication. I highly advise that you use it.
51% Attack:
A situation where a single malicious individual or group gains control of more than half of a cryptocurrency network’s computing power. Theoretically, it could allow perpetrators to manipulate the system and spend the same coin multiple times, stop other users from completing blocks and make conflicting transactions to a chain that could harm the network.
Address (or Addy):
A unique string of numbers and letters (both upper and lower case) used to send, receive or store cryptocurrency on the network. It is also the public key in a pair of keys needed to sign a digital transaction. Addresses can be shared publicly as a text or in the form of a scannable QR code. They differ between cryptocurrencies. You can’t send Bitcoin to an Ethereum address, for example.
Altcoin (alternative coin): Any digital currency other than Bitcoin. These other currencies are alternatives to Bitcoin regarding features and functionalities (e.g. faster confirmation time, lower price, improved mining algorithm, higher total coin supply). There are hundreds of altcoins, including Ether, Ripple, Litecoin and many many others.
AIRDROP:
An event where the investors/participants are able to receive free tokens or coins into their digital wallet.
AML: Defines Anti-Money Laundering laws**.**
ARBITRAGE:
Getting risk-free profits by trading (simultaneous buying and selling of the cryptocurrency) on two different exchanges which have different prices for the same asset.
Ashdraked:
Being Ashdraked is essentially a more detailed version of being Zhoutonged. It is when you lose all of your invested capital, but you do so specifically by shorting Bitcoin. The expression “Ashdraked” comes from a story of a Romanian cryptocurrency investor who insisted upon shorting BTC, as he had done so successfully in the past. When the price of BTC rose from USD 300 to USD 500, the Romanian investor lost all of his money.
ATH (All Time High):
The highest price ever achieved by a cryptocurrency in its entire history. Alternatively, ATL is all time low
Bearish:
A tendency of prices to fall; a pessimistic expectation that the value of a coin is going to drop.
Bear trap:
A manipulation of a stock or commodity by investors.
Bitcoin:
The very first, and the highest ever valued, mass-market open source and decentralized cryptocurrency and digital payment system that runs on a worldwide peer to peer network. It operates independently of any centralized authorities
Bitconnect:
One of the biggest scams in the crypto world. it was made popular in the meme world by screaming idiot Carlos Matos, who infamously proclaimed," hey hey heeeey” and “what's a what's a what's up wasssssssssuuuuuuuuuuuuup, BitConneeeeeeeeeeeeeeeeeeeeeeeect!”. He is now in the mentally ill meme hall of fame.
Block:
A package of permanently recorded data about transactions occurring every time period (typically about 10 minutes) on the blockchain network. Once a record has been completed and verified, it goes into a blockchain and gives way to the next block. Each block also contains a complex mathematical puzzle with a unique answer, without which new blocks can’t be added to the chain.
Blockchain:
An unchangeable digital record of all transactions ever made in a particular cryptocurrency and shared across thousands of computers worldwide. It has no central authority governing it. Records, or blocks, are chained to each other using a cryptographic signature. They are stored publicly and chronologically, from the genesis block to the latest block, hence the term blockchain. Anyone can have access to the database and yet it remains incredibly difficult to hack.
Bullish:
A tendency of prices to rise; an optimistic expectation that a specific cryptocurrency will do well and its value is going to increase.
BTFD:
Buy the fucking dip. This advise was bestowed upon us by the gods themselves. It is the iron code to crypto enthusiasts.
Bull market:
A market that Cryptos are going up.
Consensus:
An agreement among blockchain participants on the validity of data. Consensus is reached when the majority of nodes on the network verify that the transaction is 100% valid.
Crypto bubble:
The instability of cryptocurrencies in terms of price value
Cryptocurrency:
A type of digital currency, secured by strong computer code (cryptography), that operates independently of any middlemen or central authoritie
Cryptography:
The art of converting sensitive data into a format unreadable for unauthorized users, which when decoded would result in a meaningful statement.
Cryptojacking:
The use of someone else’s device and profiting from its computational power to mine cryptocurrency without their knowledge and consent.
Crypto-Valhalla:
When HODLers(holders) eventually cash out they go to a place called crypto-Valhalla. The strong will be separated from the weak and the strong will then be given lambos.
DAO:
Decentralized Autonomous Organizations. It defines A blockchain technology inspired organization or corporation that exists and operates without human intervention.
Dapp (decentralized application):
An open-source application that runs and stores its data on a blockchain network (instead of a central server) to prevent a single failure point. This software is not controlled by the single body – information comes from people providing other people with data or computing power.
Decentralized:
A system with no fundamental control authority that governs the network. Instead, it is jointly managed by all users to the system.
Desktop wallet:
A wallet that stores the private keys on your computer, which allow the spending and management of your bitcoins.
DILDO:
Long red or green candles. This is a crypto signal that tells you that it is not favorable to trade at the moment. Found on candlestick charts.
Digital Signature:
An encrypted digital code attached to an electronic document to prove that the sender is who they say they are and confirm that a transaction is valid and should be accepted by the network.
Double Spending:
An attack on the blockchain where a malicious user manipulates the network by sending digital money to two different recipients at exactly the same time.
DYOR:
Means do your own research.
Encryption:
Converting data into code to protect it from unauthorized access, so that only the intended recipient(s) can decode it.
Eskrow:
the practice of having a third party act as an intermediary in a transaction. This third party holds the funds on and sends them off when the transaction is completed.
Ethereum:
Ethereum is an open source, public, blockchain-based platform that runs smart contracts and allows you to build dapps on it. Ethereum is fueled by the cryptocurrency Ether.
Exchange:
A platform (centralized or decentralized) for exchanging (trading) different forms of cryptocurrencies. These exchanges allow you to exchange cryptos for local currency. Some popular exchanges are Coinbase, Bittrex, Kraken and more.
Faucet:
A website which gives away free cryptocurrencies.
Fiat money:
Fiat currency is legal tender whose value is backed by the government that issued it, such as the US dollar or UK pound.
Fork:
A split in the blockchain, resulting in two separate branches, an original and a new alternate version of the cryptocurrency. As a single blockchain forks into two, they will both run simultaneously on different parts of the network. For example, Bitcoin Cash is a Bitcoin fork.
FOMO:
Fear of missing out.
Frictionless:
A system is frictionless when there are zero transaction costs or trading retraints.
FUD:
Fear, Uncertainty and Doubt regarding the crypto market.
Gas:
A fee paid to run transactions, dapps and smart contracts on Ethereum.
Halving:
A 50% decrease in block reward after the mining of a pre-specified number of blocks. Every 4 years, the “reward” for successfully mining a block of bitcoin is reduced by half. This is referred to as “Halving”.
Hardware wallet:
Physical wallet devices that can securely store cryptocurrency maximally. Some examples are Ledger Nano S**,** Digital Bitbox and more**.**
Hash:
The process that takes input data of varying sizes, performs an operation on it and converts it into a fixed size output. It cannot be reversed.
Hashing:
The process by which you mine bitcoin or similar cryptocurrency, by trying to solve the mathematical problem within it, using cryptographic hash functions.
HODL:
A Bitcoin enthusiast once accidentally misspelled the word HOLD and it is now part of the bitcoin legend. It can also mean hold on for dear life.
ICO (Initial Coin Offering):
A blockchain-based fundraising mechanism, or a public crowd sale of a new digital coin, used to raise capital from supporters for an early stage crypto venture. Beware of these as there have been quite a few scams in the past.
John mcAfee:
A man who will one day eat his balls on live television for falsely predicting bitcoin going to 100k. He has also become a small meme within the crypto community for his outlandish claims.
JOMO:
Joy of missing out. For those who are so depressed about missing out their sadness becomes joy.
KYC:
Know your customer(alternatively consumer).
Lambo:
This stands for Lamborghini. A small meme within the investing community where the moment someone gets rich they spend their earnings on a lambo. One day we will all have lambos in crypto-valhalla.
Ledger:
Away from Blockchain, it is a book of financial transactions and balances. In the world of crypto, the blockchain functions as a ledger. A digital currency’s ledger records all transactions which took place on a certain block chain network.
Leverage:
Trading with borrowed capital (margin) in order to increase the potential return of an investment.
Liquidity:
The availability of an asset to be bought and sold easily, without affecting its market price.
of the coins.
Margin trading:
The trading of assets or securities bought with borrowed money.
Market cap/MCAP:
A short-term for Market Capitalization. Market Capitalization refers to the market value of a particular cryptocurrency. It is computed by multiplying the Price of an individual unit of coins by the total circulating supply.
Miner:
A computer participating in any cryptocurrency network performing proof of work. This is usually done to receive block rewards.
Mining:
The act of solving a complex math equation to validate a blockchain transaction using computer processing power and specialized hardware.
Mining contract:
A method of investing in bitcoin mining hardware, allowing anyone to rent out a pre-specified amount of hashing power, for an agreed amount of time. The mining service takes care of hardware maintenance, hosting and electricity costs, making it simpler for investors.
Mining rig:
A computer specially designed for mining cryptocurrencies.
Mooning:
A situation the price of a coin rapidly increases in value. Can also be used as: “I hope bitcoin goes to the moon”
Node:
Any computing device that connects to the blockchain network.
Open source:
The practice of sharing the source code for a piece of computer software, allowing it to be distributed and altered by anyone.
OTC:
Over the counter. Trading is done directly between parties.
P2P (Peer to Peer):
A type of network connection where participants interact directly with each other rather than through a centralized third party. The system allows the exchange of resources from A to B, without having to go through a separate server.
Paper wallet:
A form of “cold storage” where the private keys are printed onto a piece of paper and stored offline. Considered as one of the safest crypto wallets, the truth is that it majors in sweeping coins from your wallets.
Pre mining:
The mining of a cryptocurrency by its developers before it is released to the public.
Proof of stake (POS):
A consensus distribution algorithm which essentially rewards you based upon the amount of the coin that you own. In other words, more investment in the coin will leads to more gain when you mine with this protocol In Proof of Stake, the resource held by the “miner” is their stake in the currency.
PROOF OF WORK (POW) :
The competition of computers competing to solve a tough crypto math problem. The first computer that does this is allowed to create new blocks and record information.” The miner is then usually rewarded via transaction fees.
Protocol:
A standardized set of rules for formatting and processing data.
Public key / private key:
A cryptographic code that allows a user to receive cryptocurrencies into an account. The public key is made available to everyone via a publicly accessible directory, and the private key remains confidential to its respective owner. Because the key pair is mathematically related, whatever is encrypted with a public key may only be decrypted by its corresponding private key.
Pump and dump:
Massive buying and selling activity of cryptocurrencies (sometimes organized and to one’s benefit) which essentially result in a phenomenon where the significant surge in the value of coin followed by a huge crash take place in a short time frame.
Recovery phrase:
A set of phrases you are given whereby you can regain or access your wallet should you lose the private key to your wallets — paper, mobile, desktop, and hardware wallet. These phrases are some random 12–24 words. A recovery Phrase can also be called as Recovery seed, Seed Key, Recovery Key, or Seed Phrase.
REKT:
Referring to the word “wrecked”. It defines a situation whereby an investor or trader who has been ruined utterly following the massive losses suffered in crypto industry.
Ripple:
An alternative payment network to Bitcoin based on similar cryptography. The ripple network uses XRP as currency and is capable of sending any asset type.
ROI:
Return on investment.
Safu:
A crypto term for safe popularized by the Bizonnaci YouTube channel after the CEO of Binance tweeted
“Funds are safe."
“the exchage I use got hacked!”“Oh no, are your funds safu?”
“My coins better be safu!”


Sats/Satoshi:
The smallest fraction of a bitcoin is called a “satoshi” or “sat”. It represents one hundred-millionth of a bitcoin and is named after Satoshi Nakamoto.
Satoshi Nakamoto:
This was the pseudonym for the mysterious creator of Bitcoin.
Scalability:
The ability of a cryptocurrency to contain the massive use of its Blockchain.
Sharding:
A scaling solution for the Blockchain. It is generally a method that allows nodes to have partial copies of the complete blockchain in order to increase overall network performance and consensus speeds.
Shitcoin:
Coin with little potential or future prospects.
Shill:
Spreading buzz by heavily promoting a particular coin in the community to create awareness.
Short position:
Selling of a specific cryptocurrency with an expectation that it will drop in value.
Silk road:
The online marketplace where drugs and other illicit items were traded for Bitcoin. This marketplace is using accessed through “TOR”, and VPNs. In October 2013, a Silk Road was shut down in by the FBI.
Smart Contract:
Certain computational benchmarks or barriers that have to be met in turn for money or data to be deposited or even be used to verify things such as land rights.
Software Wallet:
A crypto wallet that exists purely as software files on a computer. Usually, software wallets can be generated for free from a variety of sources.
Solidity:
A contract-oriented coding language for implementing smart contracts on Ethereum. Its syntax is similar to that of JavaScript.
Stable coin:
A cryptocoin with an extremely low volatility that can be used to trade against the overall market.
Staking:
Staking is the process of actively participating in transaction validation (similar to mining) on a proof-of-stake (PoS) blockchain. On these blockchains, anyone with a minimum-required balance of a specific cryptocurrency can validate transactions and earn Staking rewards.
Surge:
When a crypto currency appreciates or goes up in price.
Tank:
The opposite of mooning. When a coin tanks it can also be described as crashing.
Tendies
For traders , the chief prize is “tendies” (chicken tenders, the treat an overgrown man-child receives for being a “Good Boy”) .
Token:
A unit of value that represents a digital asset built on a blockchain system. A token is usually considered as a “coin” of a cryptocurrency, but it really has a wider functionality.
TOR: “The Onion Router” is a free web browser designed to protect users’ anonymity and resist censorship. Tor is usually used surfing the web anonymously and access sites on the “Darkweb”.
Transaction fee:
An amount of money users are charged from their transaction when sending cryptocurrencies.
Volatility:
A measure of fluctuations in the price of a financial instrument over time. High volatility in bitcoin is seen as risky since its shifting value discourages people from spending or accepting it.
Wallet:
A file that stores all your private keys and communicates with the blockchain to perform transactions. It allows you to send and receive bitcoins securely as well as view your balance and transaction history.
Whale:
An investor that holds a tremendous amount of cryptocurrency. Their extraordinary large holdings allow them to control prices and manipulate the market.
Whitepaper:

A comprehensive report or guide made to understand an issue or help decision making. It is also seen as a technical write up that most cryptocurrencies provide to take a deep look into the structure and plan of the cryptocurrency/Blockchain project. Satoshi Nakamoto was the first to release a whitepaper on Bitcoin, titled “Bitcoin: A Peer-to-Peer Electronic Cash System” in late 2008.
And with that I finally complete my odyssey. I sincerely hope that this helped you and if you are new, I welcome you to crypto. If you read all of that I hope it increased, you in knowledge.
my final definition:
Crypto-Family:
A collection of all the HODLers and crypto fanatics. A place where all people alike unite over a love for crypto.
We are all in this together as we pioneer the new world that is crypto currency. I wish you a great day and Happy HODLing.
-u/flacciduck
feel free to comment words or terms that you feel should be included or about any errors I made.
Edit1:some fixes were made and added words.
submitted by flacciduck to CryptoCurrency [link] [comments]

Round up of Cryptocurrency News #10 Week 28/09 - 4/10

Hello and sorry all its been about a month since serious post. So what has happened this week? 1. Kucoin exchange was hacked for over $150 Million in Bitcoin. Bitfinex and Tether freezes $33 Million of stolen funds. Over this past week we have seen many cryptocurrencies on the exchange be released from the freeze. However, users are still waiting on the main cryptos to be released as KuCoin is working on their security of their platform to make sure it does not happen again. The hacker itself tried to dump his tokens over Binance... Good try lol https://news.bitcoin.com/kucoin-hack-17m-laundered-via-decentralized-exchanges-blockchain-analysis-firm-claims-this-can-still-be-traced/ (HOLY MOLY) https://news.bitcoin.com/kucoin-ceo-says-exchange-hack-suspects-found-204-million-recovered/ 2. Bitcoin outperforms Gold, Nasdaq, 10 year treasury and S&P 500. not surprising at all for us but still very interesting, Bitcoin is up 48% since the start of the year. It appears more people are becoming interested in cryptocurrency as Bitcoin continues to be the best performing asset not just in the past 10 years but of all time. On a more personal note, I was at a small gathering today (within covid restrictions) and I was just saying how i was really interested in cryptocurrency. For the first time ever everyone around me was really interested in what it was and how it worked also talked to a lot of my stock market friends and almost all have pulled out or thinking of pulling out. related: https://dailyhodl.com/2020/10/01/report-details-unprecedented-levels-of-wall-street-interest-in-bitcoin-and-cryptocurrency/ https://dailyhodl.com/2020/10/02/former-goldman-institutional-trader-says-large-investors-now-buying-bitcoin-and-gold-at-same-pace-heres-why/ 3. CBDC news - US federal reserve is actively working on the a digital dollar. From a previous post we know that the European Union is working on a Digital Euro and China is working on their own digital dollar. For me this is a bit of a worrying issue and seems like an upgrade for their own outdated systems completely removing the idea of decentralisation. In addition to this, I find it interesting that in Australia all cryptocurrency tax laws were written in late 2017/2018 and continues to be adapted. In Russia their are harsh penalties for unreported cryptocurrency holdings. In my controversial view I think the technology of blockchain can actually be used to recreate and rewrite a much better future through its innate abilities. we can avoid things like this: https://news.bitcoin.com/jpmorgan-fraud-billion-dollar-settlement/ 4. Highlights on cryptojacking - if you dont know what this is it is when a script or code runs on a computer to mine cryptocurrency using your computer resources. You can block these using other programs or scripts and being safe over the internet. 5. World economic forum names XRP as crypto asset most relevant in central bank digital currency space. Many partnerships in the space plus flare coming later. https://dailyhodl.com/2020/09/30/ripple-matchmaking-effort-discovered-featuring-170-financial-institutions-is-xrp-front-and-cente i definitely have a love hate relationship with XRP. 6. https://dailyhodl.com/2020/09/28/defi-movement-shatters-11000000000-in-total-crypto-assets-locked/ https://news.bitcoin.com/uniswap-captures-2-billion-locked-dex-volume-outpaces-second-largest-centralized-exchange/ 7. https://www.ey.com/en_au/blockchain/blockchain-platforms 8. https://dailyhodl.com/2020/09/29/twitter-ceo-jack-dorsey-says-bitcoin-and-blockchain-will-fuel-financial-freedom-and-transform-future-of-content-delivery/ 9. https://news.bitcoin.com/easily-spend-your-bitcoin-via-prepaid-debit-card-or-a-paypal-account-with-bitcoin-of-americas-easy-to-use-trading-platform/ 10. https://news.bitcoin.com/bitcoin-com-exchange-to-list-aspire-and-aspire-gas-as-newest-digital-asset-creation-platform-comes-to-market/ 11. https://news.bitcoin.com/onecoin-victims-petition-establishment-european-crypto-fraud-compensation-fund/ 12. https://news.bitcoin.com/atari-announces-ieo-collaboration-and-listing-of-the-atari-token-with-bitcoin-com-exchange/ Atari also partners with Cryptocurrency project ULTRA. Don't sleep on NFT projects, they may be a niche but they help with organisation, collectability and simplifies processes. 13. https://news.bitcoin.com/aurus-disrupts-the-gold-industry-today-its-ecosystem-lists-at-a-value-of-75m/ 14. https://dailyhodl.com/2020/10/01/irs-deploying-two-firms-to-track-crypto-transactions-in-million-dollar-deal/ 15. https://dailyhodl.com/2020/10/01/number-of-crypto-users-shatters-100000000-worldwide-cambridge-study/ https://news.bitcoin.com/bitcoin-posts-a-66-day-consecutive-streak-above-the-10k-price-range/ 16. https://news.bitcoin.com/cryptocurrency-exchange-diginex-trading-nasdaq/ 17. https://news.bitcoin.com/smart-contract-protocol-rsk-attempts-to-bring-defi-to-the-bitcoin-network/ 18. Bitmex news: https://news.bitcoin.com/bitmex-criminal-charges-prison/ well this happened. https://news.bitcoin.com/open-interest-on-bitmex-drops-16-investors-withdraw-37000-btc-in-less-than-24-hours/ https://dailyhodl.com/2020/10/02/bitmex-fires-back-after-us-accuses-crypto-exchange-of-failing-to-prevent-money-fraud/ https://dailyhodl.com/2020/10/03/440000000-in-bitcoin-exits-bitmex-as-crypto-traders-respond-to-cftc-allegations/ 19. Contract to break monero privacy: https://news.bitcoin.com/chainalysis-and-integra-win-1-25-million-irs-contract-to-break-monero/ 20. https://news.bitcoin.com/stacking-satoshis-leveraging-defi-applications-to-earn-more-bitcoin/ 21. https://dailyhodl.com/2020/10/02/bitcoin-whale-issues-big-warning-to-traders-heres-why-he-believes-group-of-crypto-assets-are-at-risk-from-regulators/ 22. https://news.bitcoin.com/venezuelas-state-run-defi-crypto-exchange-goes-live-after-maduros-anti-blockade-speech/ 23. https://news.bitcoin.com/crypto-exchange-coinbase-hands-over-customer-data-to-uk-tax-authority/ 24. https://news.bitcoin.com/jeff-booth-bitcoin-price-of-tomorrow/
25. https://news.bitcoin.com/eth-volumes-top-125-billion-in-q3-high-risk-dapps-dominate-tron-network/ 
Here is a small cross post for price movement: https://dailyhodl.com/2020/09/30/bitcoin-btc-tezos-xtz-cardano-ada-etoro-crypto-roundup/
Seems like everyone is bullish on bitcoin and leading crypto projects to make big gains over the next year, sooner rather than later. Bitcoin also holds above $10.5K with over 1Million wallets. Bitcoin interest is gaining throughout the world as many parts are hit by economic crisis.
Ethereum 2.0 roadmap updated, plans to exponentially increase scalability! VERY BULLISH. https://dailyhodl.com/2020/10/03/vitalik-buterin-updates-ethereum-2-0-roadmap-details-plans-to-exponentially-increase-scalability/
submitted by IOTAbesomewhere to Gravychain [link] [comments]

Passive investing strategy

I have been holding crypto and following the ecosystem for a long time, and I believe crypto will revolutionise the financial system and still has much potential to increase in value.
However until now my holdings have been mostly handpicked. In traditional investments I am a subscriber to passive investing and usually invest in broad index funds, and I want to apply that investment philosophy to my crypto holdings.
With this in mind I looked at some available crypto indices and none of them seemed to fill my needs, but looking at them helped me define some of the criteria for my own index:
I will be reproducing the index manually, so having too many assets will make the extra hassle of trading and storing the small-weighted assets not worth it.
I don't see the point of including stablecoins in a cryptoasset index. If I wanted to invest in the asset the stablecoin tracks I'd be better off holding the followed asset itself.
All indices I found included assets such as Binance Coin and OKB. I see investing in such assets as investing in the managing entity and not in the crypto ecosystem itself, as those tokens will be much more correlated with the business success of the entity than with the success of the ecosystem.
The asset must be available for trading in a reasonable number of exchanges.
Free-float market cap weighting is the standard method of weighting whole-market indices. I have seen some indices that use square root of market cap weighting in order to not be so Bitcoin-heavy, but I am not convinced that that is a better representation of the market or that it would lead to better returns.
With these criteria in mind I evaluated the top coins by market capitalization. I decided to use CoinGecko as my main source, but I do cross check the values with CoinMarketCap and CoinCap.io to avoid some big flaw in CoinGecko's methodology.
Obviously the big guy is in.
I also have no issues with Ethereum.
Ripple is a bit too centrally-controlled for my taste and there's also the worry that the value of the XRP token itself may not be too correlated with the network's success, but I still consider it to be worthy for inclusion.
Tether is excluded due to being a stable coin and being centrally-controlled.
The only thing that worries me about Bitcoin Cash is that the community seems to be too worried about insisting that it is the true Bitcoin instead of developed, but I don't see any reason to exclude it given my criteria.
This is the first asset with which I don't have too much experience. Their website is a bit too heavy on buzzwords, but my research seems to show that it is a real network, there's no big problems with their whitepaper.
I personally have no idea how Bitcoin SV is so high in market capitalization, as I see it as just Craig Steven Wright's tool to strengthen his Satoshi claim, but the point of the index and the criteria is to remove my personal feelings from the decision, so it stays in.
Litecoin is one of the oldest assets around and I have no objection for it.
This is the first one where I am having a hard time deciding if it stays in or not. Its website is full of buzzwords. They have a whitepaper explaining how the network works, but I can't see it as much more than a centrally-managed token with a bunch of apps around it and no real value proposition. The company itself seems shady, having been through a name change, as it was previously called Monaco, the way their cards work smells heavily like a Ponzi scheme, they promise huge interest rates for staking random coins with them and the amount of people that show up speaking well of it in any post about it reeks of paid shills.
For some reason it is also not listed on CoinCap.io, although it is listed on CoinGecko and CoinMarketCap. It is also listed on fewer exchanges than other coins we've seen so far.
I couldn't find any concrete evidence of it being a scam, but I am excluding it for being a centrally-controlled token.
This is a Binance-controlled token, so it is out.
I also didn't know much about this coin, but my research didn't raise any red flags about it, so it's in.
This one is an ERC20 token, but it is managed by a smart contract and although it seems to be somewhat centrally-controlled by now it does have a governance model to make this control be diluted over time. It is also trying to solve a real problem, so it is in.
I was not too familiar with it, but after researching about it I really like the idea. I see no problem in including it.
Stellar feels to me a bit too much like Ripple 2.0, but I don't have any concrete problems with it.
This is an OKEX-controlled token, so it is out.
Another one of the old kids in town, I have no problems with it.
I have a "too buzzwordy" feeling about TRON, and I feel it is a bit too much connected to its founder, but no concrete problems as well.
This is a bitfinex-controlled token, so it is out.
USD Coin is excluded due to being a stable coin and being centrally-controlled.
This is an asset that I am not too sure I understand completely, and it is not listed from CoinCap.io and its market cap is not computed on CoinMarketCap.
From what I can gather a cToken is meant to be a token that identifies that you have deposited in Compound's loan market. The only place where it is really traded is in the Compound exchange itself, and it's value is tied to the interest accrued from the loans in the platform and to the underlying asset, which in this case is DAI, a stablecoin.
I find Compound Finance interesting and intend to read more about it, but I don't think cDAI is fit for my index, as it is not freely tradeable and tied to a stablecoin.
This is a Huobi-controlled token, so it is out.
This is one more buzzwordy smart contract platform with no concrete red flags to it.
A fork from the main Ethereum chain that rejects the rescue of stolen funds from a buggy smart contract. I am sympathetic to the idea of rejecting a centrally-proposed hardfork, and I see no red flags with this coin.
And with this we are up to my intended 15 assets. This is the composition of the index with current market capitalizations:
Asset Weight
bitcoin 72,29%
ethereum 12,71%
ripple 3,80%
bitcoin-cash 1,89%
cardano 1,56%
bitcoin-cash-sv 1,42%
litecoin 1,28%
eos 1,03%
chainlink 0,96%
tezos 0,73%
stellar 0,71%
monero 0,51%
tron 0,46%
vechain 0,36%
ethereum-classic 0,30%
This is the portfolio I intend to target from now on, with occasional rebalances of course. I would like to hear what you think about my criteria and my application of them, and where I could improve it.
submitted by Miserable_Profile151 to CryptoCurrency [link] [comments]

How To End The Cryptocurrency Exchange "Wild West" Without Crippling Innovation


In case you haven't noticed the consultation paper, staff notice, and report on Quadriga, regulators are now clamping down on Canadian cryptocurrency exchanges. The OSC and other regulatory bodies are still interested in industry feedback. They have not put forward any official regulation yet. Below are some ideas/insights and a proposed framework.



Many of you have limited time to read the full proposal, so here are the highlights:

Offline Multi-Signature

Effective standards to prevent both internal and external theft. Exchange operators are trained and certified, and have a legal responsibility to users.

Regular Transparent Audits

Provides visibility to Canadians that their funds are fully backed on the exchange, while protecting privacy and sensitive platform information.

Insurance Requirements

Establishment of basic insurance standards/strategy, to expand over time. Removing risk to exchange users of any hot wallet theft.


Background and Justifications


Cold Storage Custody/Management
After reviewing close to 100 cases, all thefts tend to break down into more or less the same set of problems:
• Funds stored online or in a smart contract,
• Access controlled by one person or one system,
• 51% attacks (rare),
• Funds sent to the wrong address (also rare), or
• Some combination of the above.
For the first two cases, practical solutions exist and are widely implemented on exchanges already. Offline multi-signature solutions are already industry standard. No cases studied found an external theft or exit scam involving an offline multi-signature wallet implementation. Security can be further improved through minimum numbers of signatories, background checks, providing autonomy and legal protections to each signatory, establishing best practices, and a training/certification program.
The last two transaction risks occur more rarely, and have never resulted in a loss affecting the actual users of the exchange. In all cases to date where operators made the mistake, they've been fully covered by the exchange platforms.
• 51% attacks generally only occur on blockchains with less security. The most prominent cases have been Bitcoin Gold and Ethereum Classic. The simple solution is to enforce deposit limits and block delays such that a 51% attack is not cost-effective.
• The risk of transactions to incorrect addresses can be eliminated by a simple test transaction policy on large transactions. By sending a small amount of funds prior to any large withdrawals/transfers as a standard practice, the accuracy of the wallet address can be validated.
The proposal covers all loss cases and goes beyond, while avoiding significant additional costs, risks, and limitations which may be associated with other frameworks like SOC II.

On The Subject of Third Party Custodians
Many Canadian platforms are currently experimenting with third party custody. From the standpoint of the exchange operator, they can liberate themselves from some responsibility of custody, passing that off to someone else. For regulators, it puts crypto in similar categorization to oil, gold, and other commodities, with some common standards. Platform users would likely feel greater confidence if the custodian was a brand they recognized. If the custodian was knowledgeable and had a decent team that employed multi-sig, they could keep assets safe from internal theft. With the right protections in place, this could be a great solution for many exchanges, particularly those that lack the relevant experience or human resources for their own custody systems.
However, this system is vulnerable to anyone able to impersonate the exchange operators. You may have a situation where different employees who don't know each other that well are interacting between different companies (both the custodian and all their customers which presumably isn't just one exchange). A case study of what can go wrong in this type of environment might be Bitpay, where the CEO was tricked out of 5000 bitcoins over 3 separate payments by a series of emails sent legitimately from a breached computer of another company CEO. It's also still vulnerable to the platform being compromised, as in the really large $70M Bitfinex hack, where the third party Bitgo held one key in a multi-sig wallet. The hacker simply authorized the withdrawal using the same credentials as Bitfinex (requesting Bitgo to sign multiple withdrawal transactions). This succeeded even with the use of multi-sig and two heavily security-focused companies, due to the lack of human oversight (basically, hot wallet). Of course, you can learn from these cases and improve the security, but so can hackers improve their deception and at the end of the day, both of these would have been stopped by the much simpler solution of a qualified team who knew each other and employed multi-sig with properly protected keys. It's pretty hard to beat a human being who knows the business and the typical customer behaviour (or even knows their customers personally) at spotting fraud, and the proposed multi-sig means any hacker has to get through the scrutiny of 3 (or more) separate people, all of whom would have proper training including historical case studies.
There are strong arguments both for and against using use of third party custodians. The proposal sets mandatory minimum custody standards would apply regardless if the cold wallet signatories are exchange operators, independent custodians, or a mix of both.

On The Subject Of Insurance
ShakePay has taken the first steps into this new realm (congratulations). There is no question that crypto users could be better protected by the right insurance policies, and it certainly feels better to transact with insured platforms. The steps required to obtain insurance generally place attention in valuable security areas, and in this case included a review from CipherTrace. One of the key solutions in traditional finance comes from insurance from entities such as the CDIC.
However, historically, there wasn't found any actual insurance payout to any cryptocurrency exchange, and there are notable cases where insurance has not paid. With Bitpay, for example, the insurance agent refused because the issue happened to the third party CEO's computer instead of anything to do with Bitpay itself. With the Youbit exchange in South Korea, their insurance claim was denied, and the exchange ultimately ended up instead going bankrupt with all user's funds lost. To quote Matt Johnson in the original Lloyd's article: “You can create an insurance policy that protects no one – you know there are so many caveats to the policy that it’s not super protective.”
ShakePay's insurance was only reported to cover their cold storage, and “physical theft of the media where the private keys are held”. Physical theft has never, in the history of cryptocurrency exchange cases reviewed, been reported as the cause of loss. From the limited information of the article, ShakePay made it clear their funds are in the hands of a single US custodian, and at least part of their security strategy is to "decline[] to confirm the custodian’s name on the record". While this prevents scrutiny of the custodian, it's pretty silly to speculate that a reasonably competent hacking group couldn't determine who the custodian is. A far more common infiltration strategy historically would be social engineering, which has succeeded repeatedly. A hacker could trick their way into ShakePay's systems and request a fraudulent withdrawal, impersonate ShakePay and request the custodian to move funds, or socially engineer their way into the custodian to initiate the withdrawal of multiple accounts (a payout much larger than ShakePay) exploiting the standard procedures (for example, fraudulently initiating or override the wallet addresses of a real transfer). In each case, nothing was physically stolen and the loss is therefore not covered by insurance.
In order for any insurance to be effective, clear policies have to be established about what needs to be covered. Anything short of that gives Canadians false confidence that they are protected when they aren't in any meaningful way. At this time, the third party insurance market does not appear to provide adequate options or coverage, and effort is necessary to standardize custody standards, which is a likely first step in ultimately setting up an insurance framework.
A better solution compared to third party insurance providers might be for Canadian exchange operators to create their own collective insurance fund, or a specific federal organization similar to the CDIC. Such an organization would have a greater interest or obligation in paying out actual cases, and that would be it's purpose rather than maximizing it's own profit. This would be similar to the SAFU which Binance has launched, except it would cover multiple exchanges. There is little question whether the SAFU would pay out given a breach of Binance, and a similar argument could be made for a insurance fund managed by a collective of exchange operators or a government organization. While a third party insurance provider has the strong market incentive to provide the absolute minimum coverage and no market incentive to payout, an entity managed by exchange operators would have incentive to protect the reputation of exchange operators/the industry, and the government should have the interest of protecting Canadians.

On The Subject of Fractional Reserve
There is a long history of fractional reserve failures, from the first banks in ancient times, through the great depression (where hundreds of fractional reserve banks failed), right through to the 2008 banking collapse referenced in the first bitcoin block. The fractional reserve system allows banks to multiply the money supply far beyond the actual cash (or other assets) in existence, backed only by a system of debt obligations of others. Safely supporting a fractional reserve system is a topic of far greater complexity than can be addressed by a simple policy, and when it comes to cryptocurrency, there is presently no entity reasonably able to bail anyone out in the event of failure. Therefore, this framework is addressed around entities that aim to maintain 100% backing of funds.
There may be some firms that desire but have failed to maintain 100% backing. In this case, there are multiple solutions, including outside investment, merging with other exchanges, or enforcing a gradual restoration plan. All of these solutions are typically far better than shutting down the exchange, and there are multiple cases where they've been used successfully in the past.

Proof of Reserves/Transparency/Accountability
Canadians need to have visibility into the backing on an ongoing basis.
The best solution for crypto-assets is a Proof of Reserve. Such ideas go back all the way to 2013, before even Mt. Gox. However, no Canadian exchange has yet implemented such a system, and only a few international exchanges (CoinFloor in the UK being an example) have. Many firms like Kraken, BitBuy, and now ShakePay use the Proof of Reserve term to refer to lesser proofs which do not actually cryptographically prove the full backing of all user assets on the blockchain. In order for a Proof of Reserve to be effective, it must actually be a complete proof, and it needs to be understood by the public that is expected to use it. Many firms have expressed reservations about the level of transparency required in a complete Proof of Reserve (for example Kraken here). While a complete Proof of Reserves should be encouraged, and there are some solutions in the works (ie TxQuick), this is unlikely to be suitable universally for all exchange operators and users.
Given the limitations, and that firms also manage fiat assets, a more traditional audit process makes more sense. Some Canadian exchanges (CoinSquare, CoinBerry) have already subjected themselves to annual audits. However, these results are not presently shared publicly, and there is no guarantee over the process including all user assets or the integrity and independence of the auditor. The auditor has been typically not known, and in some cases, the identity of the auditor is protected by a NDA. Only in one case (BitBuy) was an actual report generated and publicly shared. There has been no attempt made to validate that user accounts provided during these audits have been complete or accurate. A fraudulent fractional exchange, or one which had suffered a breach they were unwilling to publicly accept (see CoinBene), could easily maintain a second set of books for auditors or simply exclude key accounts to pass an individual audit.
The proposed solution would see a reporting standard which includes at a minimum - percentage of backing for each asset relative to account balances and the nature of how those assets are stored, with ownership proven by the auditor. The auditor would also publicly provide a "hash list", which they independently generate from the accounts provided by the exchange. Every exchange user can then check their information against this public "hash list". A hash is a one-way form of encryption, which fully protects the private information, yet allows anyone who knows that information already to validate that it was included. Less experienced users can take advantage of public tools to calculate the hash from their information (provided by the exchange), and thus have certainty that the auditor received their full balance information. Easy instructions can be provided.
Auditors should be impartial, their identities and process public, and they should be rotated so that the same auditor is never used twice in a row. Balancing the cost of auditing against the needs for regular updates, a 6 month cycle likely makes the most sense.

Hot Wallet Management
The best solution for hot wallets is not to use them. CoinBerry reportedly uses multi-sig on all withdrawals, and Bitmex is an international example known for their structure devoid of hot wallets.
However, many platforms and customers desire fast withdrawal processes, and human validation has a cost of time and delay in this process.
A model of self-insurance or separate funds for hot wallets may be used in these cases. Under this model, a platform still has 100% of their client balance in cold storage and holds additional funds in hot wallets for quick withdrawal. Thus, the risk of those hot wallets is 100% on exchange operators and not affecting the exchange users. Since most platforms typically only have 1%-5% in hot wallets at any given time, it shouldn't be unreasonable to build/maintain these additional reserves over time using exchange fees or additional investment. Larger withdrawals would still be handled at regular intervals from the cold storage.
Hot wallet risks have historically posed a large risk and there is no established standard to guarantee secure hot wallets. When the government of South Korea dispatched security inspections to multiple exchanges, the results were still that 3 of them got hacked after the inspections. If standards develop such that an organization in the market is willing to insure the hot wallets, this could provide an acceptable alternative. Another option may be for multiple exchange operators to pool funds aside for a hot wallet insurance fund. Comprehensive coverage standards must be established and maintained for all hot wallet balances to make sure Canadians are adequately protected.

Current Draft Proposal

(1) Proper multi-signature cold wallet storage.
(a) Each private key is the personal and legal responsibility of one person - the “signatory”. Signatories have special rights and responsibilities to protect user assets. Signatories are trained and certified through a course covering (1) past hacking and fraud cases, (2) proper and secure key generation, and (3) proper safekeeping of private keys. All private keys must be generated and stored 100% offline by the signatory. If even one private keys is ever breached or suspected to be breached, the wallet must be regenerated and all funds relocated to a new wallet.
(b) All signatories must be separate background-checked individuals free of past criminal conviction. Canadians should have a right to know who holds their funds. All signing of transactions must take place with all signatories on Canadian soil or on the soil of a country with a solid legal system which agrees to uphold and support these rules (from an established white-list of countries which expands over time).
(c) 3-5 independent signatures are required for any withdrawal. There must be 1-3 spare signatories, and a maximum of 7 total signatories. The following are all valid combinations: 3of4, 3of5, 3of6, 4of5, 4of6, 4of7, 5of6, or 5of7.
(d) A security audit should be conducted to validate the cold wallet is set up correctly and provide any additional pertinent information. The primary purpose is to ensure that all signatories are acting independently and using best practices for private key storage. A report summarizing all steps taken and who did the audit will be made public. Canadians must be able to validate the right measures are in place to protect their funds.
(e) There is a simple approval process if signatories wish to visit any country outside Canada, with a potential whitelist of exempt countries. At most 2 signatories can be outside of aligned jurisdiction at any given time. All exchanges would be required to keep a compliant cold wallet for Canadian funds and have a Canadian office if they wish to serve Canadian customers.
(2) Regular and transparent solvency audits.
(a) An audit must be conducted at founding, after 3 months of operation, and at least once every 6 months to compare customer balances against all stored cryptocurrency and fiat balances. The auditor must be known, independent, and never the same twice in a row.
(b) An audit report will be published featuring the steps conducted in a readable format. This should be made available to all Canadians on the exchange website and on a government website. The report must include what percentage of each customer asset is backed on the exchange, and how those funds are stored.
(c) The auditor will independently produce a hash of each customer's identifying information and balance as they perform the audit. This will be made publicly available on the exchange and government website, along with simplified instructions that each customer can use to verify that their balance was included in the audit process.
(d) The audit needs to include a proof of ownership for any cryptocurrency wallets included. A satoshi test (spending a small amount) or partially signed transaction both qualify.
(e) Any platform without 100% reserves should be assessed on a regular basis by a government or industry watchdog. This entity should work to prevent any further drop, support any private investor to come in, or facilitate a merger so that 100% backing can be obtained as soon as possible.
(3) Protections for hot wallets and transactions.
(a) A standardized list of approved coins and procedures will be established to constitute valid cold storage wallets. Where a multi-sig process is not natively available, efforts will be undertaken to establish a suitable and stable smart contract standard. This list will be expanded and improved over time. Coins and procedures not on the list are considered hot wallets.
(b) Hot wallets can be backed by additional funds in cold storage or an acceptable third-party insurance provider with a comprehensive coverage policy.
(c) Exchanges are required to cover the full balance of all user funds as denominated in the same currency, or double the balance as denominated in bitcoin or CAD using an established trading rate. If the balance is ever insufficient due to market movements, the firm must rectify this within 24 hours by moving assets to cold storage or increasing insurance coverage.
(d) Any large transactions (above a set threshold) from cold storage to any new wallet addresses (not previously transacted with) must be tested with a smaller transaction first. Deposits of cryptocurrency must be limited to prevent economic 51% attacks. Any issues are to be covered by the exchange.
(e) Exchange platforms must provide suitable authentication for users, including making available approved forms of two-factor authentication. SMS-based authentication is not to be supported. Withdrawals must be blocked for 48 hours in the event of any account password change. Disputes on the negligence of exchanges should be governed by case law.

Steps Forward

Continued review of existing OSC feedback is still underway. More feedback and opinions on the framework and ideas as presented here are extremely valuable. The above is a draft and not finalized.
The process of further developing and bringing a suitable framework to protect Canadians will require the support of exchange operators, legal experts, and many others in the community. The costs of not doing such are tremendous. A large and convoluted framework, one based on flawed ideas or implementation, or one which fails to properly safeguard Canadians is not just extremely expensive and risky for all Canadians, severely limiting to the credibility and reputation of the industry, but an existential risk to many exchanges.
The responsibility falls to all of us to provide our insight and make our opinions heard on this critical matter. Please take the time to give your thoughts.
submitted by azoundria2 to QuadrigaInitiative [link] [comments]

A guide to Smart Contracts

A guide to Smart Contracts

https://preview.redd.it/ysi74g2vn3251.png?width=1920&format=png&auto=webp&s=63875e316556c41144ad81cf061caf5bb3f4680d
We all have heard the term Smart Contract. When Satoshi invented Blockchain, it was meant to perform transactions only. Ethereum smart contracts made it the prime choice to build Dapps over it. Smart contract enhanced Ethereum’s functionality and makes it different from the traditional blockchain (Bitcoin). This functionality was replicated by other newer Blockchains.
What are Smart Contracts?
Smart contracts can be defined as self-executing applications that run on a blockchain. It is an agreement between two or more parties in the form of a computer code that runs on a decentralized network in a blockchain. It consists of a set of defined rules which are agreed upon by the involved parties. The contract automatically gets activated whenever certain conditions are met.
This idea will remove the involvement of any trusted third-party companies (such as banks) and will be controlled by computers on a trusted network.
Ethereum is one of the most popular blockchain platforms for creating smart contracts. It supports a feature called Turing-completeness that enables the developers to build customized smart contracts. Solidity, Ethereum’s original coding language is used to develop smart contracts. Ethereum blockchain's ERC-20 and ERC-721 tokens are smart contract standards.
Who created it?
Nick Szabo, a computer scientist, and cryptographer, first described the idea of Smart contracts in the ‘90s. He worked on the concept of defining contract laws in businesses between parties by maintaining an electronic commerce protocol on the Internet.
He further designed Bit Gold, a mechanism for a decentralized digital currency in 1998. Though the idea was never implemented it created a base that led to the popularity of Bitcoin after 10 years.
Properties:
· Self-verifiable
· Self-executable
· Tamper Proof
Benefits of using Smart Contract
· The removal of third-party or middleman leads to direct and transparent communication between involving parties
· Helps in maintaining trust as the agreement rules were predefined and agreed by the parties involved
· Helps in reducing error and frauds
· Time and cost-efficient
· No single point of failure or data loss as data is distributed across the network

https://preview.redd.it/1e5ahcqxn3251.png?width=1024&format=png&auto=webp&s=f8a1ebb9b3a84dd721fb32f96fc1950899bc3015
Different objects of Smart contracts
There are three essential and main objects of Smart Contracts
· Signatories- The parties who use the smart contract.
· Agreement subject
· Terms and Condition-. Details like rules, obligations, and associated punishments, etc are mentioned as terms and conditions as appropriate.
How Smart Contract works
Ethereum has 2 types of accounts
· External accounts (user account) - Controlled by public-private key pairs
· Contract accounts - Controlled by the code stored together with the account
These accounts contain four fields:
· The nonce, which ensures that each transaction can only be processed once
· The current ether balance of the account
· The contract code of the account
· The storage of the account
Model steps
  1. External account executes a function:
a. The user initiates the process by signing the transaction using his private key corresponding to the account.
b. Local validation of the transaction happens. It is broadcasted to the network.
c. The transaction is added to the transaction pool. The mines maintains such pools.
  1. Generate EVM bytecode through compiling
  2. EVM
a. EVM is a powerful, virtual sandbox embedded within each full Ethereum node
b. The job of the EVM is to update the Ethereum state by computing valid state transitions as a result of smart contact code execution
c. The EVM should not run into any exceptions during the execution
  1. Get contract address from that transaction's receipt
  2. Trigger contract address to invoke methods of that deployed smart contract
  3. Upon receiving a newly created block, the local node executes all the transactions in the block.
The accuracy and quality of a smart contract depends on the following things
· Open and decentralized database
· The environment needs to support the use of public-key cryptography
· Quality programming is crucial.
· Data should be reliable.
· Robust rules should be used while automating the process.
Features
Smart contracts automatically support the features of underlying blockchain technology.
· Autonomy – Complete control of the involving parties. No need of middleman as in the case of traditional contractual system
· Speed – Automated computer code runs as soon as the input criteria fulfill, thereby eliminating the delays caused by manual paperwork activity
· Safety – Network encryption guarantees safety against data theft or hacking
· Savings – No doubt that the removal of middleman saves a lot of overall cost and time
· Accuracy – Since these smart contracts are automated software codes so they ensure accurate output as long as the data fed into the system as input is accurate
· Trust – Helps in building trust as the documents are encrypted in a shared ledger
· Backup – Since in Blockchain network, each node has a complete backup of data which ensures protection over data loss
Potential Use cases
Smart contracts can be used to exchange money, property, shares, or anything without any intervention of middleman. They are now gaining popularity and adaption in various sectors. Some of the main sectors are as follows:-
· Insurance Companies
· Health Systems
· Government’s administrative work.
· Business Management
I will cover each of the potential use cases in detail in my future articles separately.
Conclusion
Smart Contract is the greatest innovation built on Blockchain technology. We can say it as a cherry over the pie. It has given a new dimension to technology and is one of the biggest reasons behind the popularity of Ethereum.
We can say without any second thought that very soon we will be entering into the era where there will be no intervention of any third party. In this way, it can help us in saving a lot of money, time, and effort. Also, we don’t need to be dependent or trust anyone while taking any crucial transactions. This will surely help in reducing fraud, unnecessary delays, and the overall cost of transactions. Smart Contracts will make many transactional jobs redundant. We can be hopeful that further development in technology will open sources for many other new jobs.
Read More: Understanding Hard Fork
Register in Crypto.com and get $ 50. Link here.
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submitted by RumaDas to BlockChain_info [link] [comments]

Technical: A Brief History of Payment Channels: from Satoshi to Lightning Network

Who cares about political tweets from some random country's president when payment channels are a much more interesting and are actually capable of carrying value?
So let's have a short history of various payment channel techs!

Generation 0: Satoshi's Broken nSequence Channels

Because Satoshi's Vision included payment channels, except his implementation sucked so hard we had to go fix it and added RBF as a by-product.
Originally, the plan for nSequence was that mempools would replace any transaction spending certain inputs with another transaction spending the same inputs, but only if the nSequence field of the replacement was larger.
Since 0xFFFFFFFF was the highest value that nSequence could get, this would mark a transaction as "final" and not replaceable on the mempool anymore.
In fact, this "nSequence channel" I will describe is the reason why we have this weird rule about nLockTime and nSequence. nLockTime actually only works if nSequence is not 0xFFFFFFFF i.e. final. If nSequence is 0xFFFFFFFF then nLockTime is ignored, because this if the "final" version of the transaction.
So what you'd do would be something like this:
  1. You go to a bar and promise the bartender to pay by the time the bar closes. Because this is the Bitcoin universe, time is measured in blockheight, so the closing time of the bar is indicated as some future blockheight.
  2. For your first drink, you'd make a transaction paying to the bartender for that drink, paying from some coins you have. The transaction has an nLockTime equal to the closing time of the bar, and a starting nSequence of 0. You hand over the transaction and the bartender hands you your drink.
  3. For your succeeding drink, you'd remake the same transaction, adding the payment for that drink to the transaction output that goes to the bartender (so that output keeps getting larger, by the amount of payment), and having an nSequence that is one higher than the previous one.
  4. Eventually you have to stop drinking. It comes down to one of two possibilities:
    • You drink until the bar closes. Since it is now the nLockTime indicated in the transaction, the bartender is able to broadcast the latest transaction and tells the bouncers to kick you out of the bar.
    • You wisely consider the state of your liver. So you re-sign the last transaction with a "final" nSequence of 0xFFFFFFFF i.e. the maximum possible value it can have. This allows the bartender to get his or her funds immediately (nLockTime is ignored if nSequence is 0xFFFFFFFF), so he or she tells the bouncers to let you out of the bar.
Now that of course is a payment channel. Individual payments (purchases of alcohol, so I guess buying coffee is not in scope for payment channels). Closing is done by creating a "final" transaction that is the sum of the individual payments. Sure there's no routing and channels are unidirectional and channels have a maximum lifetime but give Satoshi a break, he was also busy inventing Bitcoin at the time.
Now if you noticed I called this kind of payment channel "broken". This is because the mempool rules are not consensus rules, and cannot be validated (nothing about the mempool can be validated onchain: I sigh every time somebody proposes "let's make block size dependent on mempool size", mempool state cannot be validated by onchain data). Fullnodes can't see all of the transactions you signed, and then validate that the final one with the maximum nSequence is the one that actually is used onchain. So you can do the below:
  1. Become friends with Jihan Wu, because he owns >51% of the mining hashrate (he totally reorged Bitcoin to reverse the Binance hack right?).
  2. Slip Jihan Wu some of the more interesting drinks you're ordering as an incentive to cooperate with you. So say you end up ordering 100 drinks, you split it with Jihan Wu and give him 50 of the drinks.
  3. When the bar closes, Jihan Wu quickly calls his mining rig and tells them to mine the version of your transaction with nSequence 0. You know, that first one where you pay for only one drink.
  4. Because fullnodes cannot validate nSequence, they'll accept even the nSequence=0 version and confirm it, immutably adding you paying for a single alcoholic drink to the blockchain.
  5. The bartender, pissed at being cheated, takes out a shotgun from under the bar and shoots at you and Jihan Wu.
  6. Jihan Wu uses his mystical chi powers (actually the combined exhaust from all of his mining rigs) to slow down the shotgun pellets, making them hit you as softly as petals drifting in the wind.
  7. The bartender mutters some words, clothes ripping apart as he or she (hard to believe it could be a she but hey) turns into a bear, ready to maul you for cheating him or her of the payment for all the 100 drinks you ordered from him or her.
  8. Steely-eyed, you stand in front of the bartender-turned-bear, daring him to touch you. You've watched Revenant, you know Leonardo di Caprio could survive a bear mauling, and if some posh actor can survive that, you know you can too. You make a pose. "Drunken troll logic attack!"
  9. I think I got sidetracked here.
Lessons learned?

Spilman Channels

Incentive-compatible time-limited unidirectional channel; or, Satoshi's Vision, Fixed (if transaction malleability hadn't been a problem, that is).
Now, we know the bartender will turn into a bear and maul you if you try to cheat the payment channel, and now that we've revealed you're good friends with Jihan Wu, the bartender will no longer accept a payment channel scheme that lets one you cooperate with a miner to cheat the bartender.
Fortunately, Jeremy Spilman proposed a better way that would not let you cheat the bartender.
First, you and the bartender perform this ritual:
  1. You get some funds and create a transaction that pays to a 2-of-2 multisig between you and the bartender. You don't broadcast this yet: you just sign it and get its txid.
  2. You create another transaction that spends the above transaction. This transaction (the "backoff") has an nLockTime equal to the closing time of the bar, plus one block. You sign it and give this backoff transaction (but not the above transaction) to the bartender.
  3. The bartender signs the backoff and gives it back to you. It is now valid since it's spending a 2-of-2 of you and the bartender, and both of you have signed the backoff transaction.
  4. Now you broadcast the first transaction onchain. You and the bartender wait for it to be deeply confirmed, then you can start ordering.
The above is probably vaguely familiar to LN users. It's the funding process of payment channels! The first transaction, the one that pays to a 2-of-2 multisig, is the funding transaction that backs the payment channel funds.
So now you start ordering in this way:
  1. For your first drink, you create a transaction spending the funding transaction output and sending the price of the drink to the bartender, with the rest returning to you.
  2. You sign the transaction and pass it to the bartender, who serves your first drink.
  3. For your succeeding drinks, you recreate the same transaction, adding the price of the new drink to the sum that goes to the bartender and reducing the money returned to you. You sign the transaction and give it to the bartender, who serves you your next drink.
  4. At the end:
    • If the bar closing time is reached, the bartender signs the latest transaction, completing the needed 2-of-2 signatures and broadcasting this to the Bitcoin network. Since the backoff transaction is the closing time + 1, it can't get used at closing time.
    • If you decide you want to leave early because your liver is crying, you just tell the bartender to go ahead and close the channel (which the bartender can do at any time by just signing and broadcasting the latest transaction: the bartender won't do that because he or she is hoping you'll stay and drink more).
    • If you ended up just hanging around the bar and never ordering, then at closing time + 1 you broadcast the backoff transaction and get your funds back in full.
Now, even if you pass 50 drinks to Jihan Wu, you can't give him the first transaction (the one which pays for only one drink) and ask him to mine it: it's spending a 2-of-2 and the copy you have only contains your own signature. You need the bartender's signature to make it valid, but he or she sure as hell isn't going to cooperate in something that would lose him or her money, so a signature from the bartender validating old state where he or she gets paid less isn't going to happen.
So, problem solved, right? Right? Okay, let's try it. So you get your funds, put them in a funding tx, get the backoff tx, confirm the funding tx...
Once the funding transaction confirms deeply, the bartender laughs uproariously. He or she summons the bouncers, who surround you menacingly.
"I'm refusing service to you," the bartender says.
"Fine," you say. "I was leaving anyway;" You smirk. "I'll get back my money with the backoff transaction, and posting about your poor service on reddit so you get negative karma, so there!"
"Not so fast," the bartender says. His or her voice chills your bones. It looks like your exploitation of the Satoshi nSequence payment channel is still fresh in his or her mind. "Look at the txid of the funding transaction that got confirmed."
"What about it?" you ask nonchalantly, as you flip open your desktop computer and open a reputable blockchain explorer.
What you see shocks you.
"What the --- the txid is different! You--- you changed my signature?? But how? I put the only copy of my private key in a sealed envelope in a cast-iron box inside a safe buried in the Gobi desert protected by a clan of nomads who have dedicated their lives and their childrens' lives to keeping my private key safe in perpetuity!"
"Didn't you know?" the bartender asks. "The components of the signature are just very large numbers. The sign of one of the signature components can be changed, from positive to negative, or negative to positive, and the signature will remain valid. Anyone can do that, even if they don't know the private key. But because Bitcoin includes the signatures in the transaction when it's generating the txid, this little change also changes the txid." He or she chuckles. "They say they'll fix it by separating the signatures from the transaction body. They're saying that these kinds of signature malleability won't affect transaction ids anymore after they do this, but I bet I can get my good friend Jihan Wu to delay this 'SepSig' plan for a good while yet. Friendly guy, this Jihan Wu, it turns out all I had to do was slip him 51 drinks and he was willing to mine a tx with the signature signs flipped." His or her grin widens. "I'm afraid your backoff transaction won't work anymore, since it spends a txid that is not existent and will never be confirmed. So here's the deal. You pay me 99% of the funds in the funding transaction, in exchange for me signing the transaction that spends with the txid that you see onchain. Refuse, and you lose 100% of the funds and every other HODLer, including me, benefits from the reduction in coin supply. Accept, and you get to keep 1%. I lose nothing if you refuse, so I won't care if you do, but consider the difference of getting zilch vs. getting 1% of your funds." His or her eyes glow. "GENUFLECT RIGHT NOW."
Lesson learned?

CLTV-protected Spilman Channels

Using CLTV for the backoff branch.
This variation is simply Spilman channels, but with the backoff transaction replaced with a backoff branch in the SCRIPT you pay to. It only became possible after OP_CHECKLOCKTIMEVERIFY (CLTV) was enabled in 2015.
Now as we saw in the Spilman Channels discussion, transaction malleability means that any pre-signed offchain transaction can easily be invalidated by flipping the sign of the signature of the funding transaction while the funding transaction is not yet confirmed.
This can be avoided by simply putting any special requirements into an explicit branch of the Bitcoin SCRIPT. Now, the backoff branch is supposed to create a maximum lifetime for the payment channel, and prior to the introduction of OP_CHECKLOCKTIMEVERIFY this could only be done by having a pre-signed nLockTime transaction.
With CLTV, however, we can now make the branches explicit in the SCRIPT that the funding transaction pays to.
Instead of paying to a 2-of-2 in order to set up the funding transaction, you pay to a SCRIPT which is basically "2-of-2, OR this singlesig after a specified lock time".
With this, there is no backoff transaction that is pre-signed and which refers to a specific txid. Instead, you can create the backoff transaction later, using whatever txid the funding transaction ends up being confirmed under. Since the funding transaction is immutable once confirmed, it is no longer possible to change the txid afterwards.

Todd Micropayment Networks

The old hub-spoke model (that isn't how LN today actually works).
One of the more direct predecessors of the Lightning Network was the hub-spoke model discussed by Peter Todd. In this model, instead of payers directly having channels to payees, payers and payees connect to a central hub server. This allows any payer to pay any payee, using the same channel for every payee on the hub. Similarly, this allows any payee to receive from any payer, using the same channel.
Remember from the above Spilman example? When you open a channel to the bartender, you have to wait around for the funding tx to confirm. This will take an hour at best. Now consider that you have to make channels for everyone you want to pay to. That's not very scalable.
So the Todd hub-spoke model has a central "clearing house" that transport money from payers to payees. The "Moonbeam" project takes this model. Of course, this reveals to the hub who the payer and payee are, and thus the hub can potentially censor transactions. Generally, though, it was considered that a hub would more efficiently censor by just not maintaining a channel with the payer or payee that it wants to censor (since the money it owned in the channel would just be locked uselessly if the hub won't process payments to/from the censored user).
In any case, the ability of the central hub to monitor payments means that it can surveill the payer and payee, and then sell this private transactional data to third parties. This loss of privacy would be intolerable today.
Peter Todd also proposed that there might be multiple hubs that could transport funds to each other on behalf of their users, providing somewhat better privacy.
Another point of note is that at the time such networks were proposed, only unidirectional (Spilman) channels were available. Thus, while one could be a payer, or payee, you would have to use separate channels for your income versus for your spending. Worse, if you wanted to transfer money from your income channel to your spending channel, you had to close both and reshuffle the money between them, both onchain activities.

Poon-Dryja Lightning Network

Bidirectional two-participant channels.
The Poon-Dryja channel mechanism has two important properties:
Both the original Satoshi and the two Spilman variants are unidirectional: there is a payer and a payee, and if the payee wants to do a refund, or wants to pay for a different service or product the payer is providing, then they can't use the same unidirectional channel.
The Poon-Dryjam mechanism allows channels, however, to be bidirectional instead: you are not a payer or a payee on the channel, you can receive or send at any time as long as both you and the channel counterparty are online.
Further, unlike either of the Spilman variants, there is no time limit for the lifetime of a channel. Instead, you can keep the channel open for as long as you want.
Both properties, together, form a very powerful scaling property that I believe most people have not appreciated. With unidirectional channels, as mentioned before, if you both earn and spend over the same network of payment channels, you would have separate channels for earning and spending. You would then need to perform onchain operations to "reverse" the directions of your channels periodically. Secondly, since Spilman channels have a fixed lifetime, even if you never used either channel, you would have to periodically "refresh" it by closing it and reopening.
With bidirectional, indefinite-lifetime channels, you may instead open some channels when you first begin managing your own money, then close them only after your lawyers have executed your last will and testament on how the money in your channels get divided up to your heirs: that's just two onchain transactions in your entire lifetime. That is the potentially very powerful scaling property that bidirectional, indefinite-lifetime channels allow.
I won't discuss the transaction structure needed for Poon-Dryja bidirectional channels --- it's complicated and you can easily get explanations with cute graphics elsewhere.
There is a weakness of Poon-Dryja that people tend to gloss over (because it was fixed very well by RustyReddit):
Another thing I want to emphasize is that while the Lightning Network paper and many of the earlier presentations developed from the old Peter Todd hub-and-spoke model, the modern Lightning Network takes the logical conclusion of removing a strict separation between "hubs" and "spokes". Any node on the Lightning Network can very well work as a hub for any other node. Thus, while you might operate as "mostly a payer", "mostly a forwarding node", "mostly a payee", you still end up being at least partially a forwarding node ("hub") on the network, at least part of the time. This greatly reduces the problems of privacy inherent in having only a few hub nodes: forwarding nodes cannot get significantly useful data from the payments passing through them, because the distance between the payer and the payee can be so large that it would be likely that the ultimate payer and the ultimate payee could be anyone on the Lightning Network.
Lessons learned?

Future

After LN, there's also the Decker-Wattenhofer Duplex Micropayment Channels (DMC). This post is long enough as-is, LOL. But for now, it uses a novel "decrementing nSequence channel", using the new relative-timelock semantics of nSequence (not the broken one originally by Satoshi). It actually uses multiple such "decrementing nSequence" constructs, terminating in a pair of Spilman channels, one in both directions (thus "duplex"). Maybe I'll discuss it some other time.
The realization that channel constructions could actually hold more channel constructions inside them (the way the Decker-Wattenhofer puts a pair of Spilman channels inside a series of "decrementing nSequence channels") lead to the further thought behind Burchert-Decker-Wattenhofer channel factories. Basically, you could host multiple two-participant channel constructs inside a larger multiparticipant "channel" construct (i.e. host multiple channels inside a factory).
Further, we have the Decker-Russell-Osuntokun or "eltoo" construction. I'd argue that this is "nSequence done right". I'll write more about this later, because this post is long enough.
Lessons learned?
submitted by almkglor to Bitcoin [link] [comments]

Day 4: I will repost this guide daily until available solutions like SegWit & order batching are mass adopted, the mempool is empty once again, and transaction fees are low. ARE YOU PART OF THE SOLUTION? News: Unconfirmed TX's @ 174K, more exchanges adding SegWit, Core prioritizes SegWit GUI

NOTE Just a daily repost because original OP Bastiat seems to be offline (due to holidays I guess). However, this is quite important as I see much misinformation on which exchanges use segwit or not. Please upvote for awareness.
BACKGROUND
Subhan Nadeem has pointed out that:
If every transaction in the Bitcoin network was a SegWit transaction today, blocks would contain up to 8,000 transactions, and the 138,000 unconfirmed transaction backlog would disappear instantly. Transaction fees would be almost non-existent once again.
A few thousand bitcoin users from /Bitcoin switching to making their next transactions SegWit transactions will help take pressure off the network now, and together we can encourage exchanges/wallets to rapidly deploy SegWit for everyone ASAP. Let's make it happen. You can help by taking one or more of the action steps below.
ACTION STEPS
  1. If your favorite wallet has not yet implemented SegWit, kindly ask them to do so immediately. In the meantime start using a wallet that has already implemented SegWit.
  2. If your favorite exchange has not yet implemented SegWit, try to avoid making any further purchases of bitcoin at that exchange and politely inform them that if they do not enable SegWit within 30-days they will lose your business. Sign-up for an account at a SegWit deployed exchange now and initiate the verification process so you'll be ready to bail
  3. Help educate newcomers to bitcoin about the transaction issue, steer them towards SegWit wallets from day one, and encourage them to avoid ever purchasing bitcoin through non-SegWit ready exchanges that are harming bitcoin
IMPORTANT NOTE: The mempool is currently overflowing. If you are a long-term holder and really have no reason to move your bitcoins at this time, wait until the mempool starts to clear and transaction fees go down before moving your bitcoins to a SegWit address or SegWit friendly exchange
SELECTED TOP EXCHANGES BY SEGWIT & BATCHING STATUS
There are 2 different Segwit address formats.
  • p2sh - starting with a "3..."
  • bech32 - starting "bc1..."
Not many wallets/exchanges support bech32 yet and will claim the address is invalid if you try to send to it. bech32 ("native Segwit") is a mildly better solution compared to p2sh.
Exchange Batching Status Segwit (p2sh) Send to bech32
Binance Yes No No
Bitfinex Yes No No
Bitonic ? No No
Bitstamp Yes Yes No
Bittrex Yes ? ?
Coinbase/GDAX No No No
Gemini No No No
HitBTC Yes Yes ?
Huboi ? ? ?
Kraken No Yes ?
LocalBitcoins No ? ?
OKEx ? ? ?
Poloniex ? Yes ?
QuadrigaCX Yes Yes ?
Shapeshift Yes No No
Source 1
Source 2
WALLETS
Make sure you have a SegWit capable wallet installed and ready to use for your next bitcoin transaction
SegWit Enabled Wallets Wallet Type
Ledger Nano S Hardware
Trezor Hardware
Electrum Desktop
Armory Desktop
Edge iOS
GreenAddress iOS
BitWallet iOS
Samourai Android
GreenBits Android
Electrum Android
TODAY's NEWS/DEVELOPMENTS/VICTORIES
MEMPOOL/SEGWIT STATISTICS
FAQs
If I'm a HODLer, will it help to send my BTC to a SegWit address now?
  • No, just get ready now so that your NEXT transaction will be to a SegWit wallet. Avoid burdening the network with any unneccessary transactions for now.
Can you please tell me how to move my bitcoins to SegWit address in Bitcoin core wallet? Does the sender or receiver matter?
  • The Bitcoin core wallet does not yet have a GUI for its SegWit functionality. Download Electrum v3.0.3 to generate a SegWit address.
    A transaction between two SegWit addresses is a SegWit transaction.
    A transaction sent from a SegWit address to a non-SegWit address is a SegWit transaction.
    A transaction sent from a non-SegWit address to a SegWit address is NOT a SegWit transaction. You can send a SegWit Transaction if the sending address is a SegWit address.
    Source
So what address can I send to safely, there is so much confusion?
  • As of right now...
Non-Segwit Transactions
non-Segwit address to…
non-Segwit address OK
3..... (Segwit) OK
bc1.... (Segwit) No (no support for them yet)
Segwit Transactions
3... address (Segwit) to…
non-Segwit address OK
3..... (Segwit) OK
bc1.... (Segwit) No (no support for them yet)
bc1... address (Segwit) to…
non-Segwit address OK
3..... (Segwit) OK
bc1.... (Segwit) OK
What wallet are you using to "batch your sends"? And how can I do that?
  • Using Electrum, the "Tools" menu option: "Pay to many".
    Just enter your receive addresses and the amounts for each, and you can send multiple transactions for nearly the price of one.
Why doesn't the Core Wallet yet support SegWit?
  • The Core Wallet supports SegWit, but its GUI doesn't. The next update will likely have GUI support built-in
Why isn't a large exchange like Coinbase SegWit ready & deployed when much smaller exchanges already are? Why do they default to high fees? Where is the leadership there?
SEGWIT BLOG GUIDES
PREVIOUS DAY'S THREADS
There's lots of excellent info in the comments of the previous threads:
submitted by psycongoroo to Bitcoin [link] [comments]

Day 5: I will post this guide regularly until available solutions like SegWit & order batching are mass adopted, the mempool is empty once again, and transaction fees are low. User demand from this community can help lead to some big changes. Have you joined the /r/Bitcoin SegWit effort?

SUMMARY
Segregrated Witness (SegWit) was activated on the Bitcoin network August 24, 2017 as a soft fork that is backward compatible with previous bitcoin transactions (Understanding Segregated Witness). Since that time wallets and exchanges have been slow to deploy SegWit, some admitting in December 2017 that they have not even started work. If users demand SegWit now it will temporarily releive the transaction backlog while bigger solutions like Lightning are developed.
TODAY's NEWS/DEVELOPMENTS/VICTORIES
MEMPOOL/SEGWIT STATISTICS
BACKGROUND
Subhan Nadeem has pointed out that:
If every transaction in the Bitcoin network was a SegWit transaction today, blocks would contain up to 8,000 transactions, and the 138,000 unconfirmed transaction backlog would disappear instantly. Transaction fees would be almost non-existent once again.
A few thousand bitcoin users from /Bitcoin switching to making their next transactions SegWit transactions will help take pressure off the network now, and together we can encourage exchanges/wallets to rapidly deploy SegWit for everyone ASAP. Let's make 80%+ SegWit happen fast. You can help by taking one or more of the action steps below.
ACTION STEPS
  1. If your favorite wallet has not yet implemented SegWit, kindly ask them to do so immediately. In the meantime start using a wallet that has already implemented SegWit.
  2. If your favorite exchange has not yet implemented SegWit, try to avoid making any further purchases of bitcoin at that exchange and politely inform them that if they do not enable SegWit within 30-days they will lose your business. Sign-up for an account at a SegWit deployed/ready exchange now and initiate the verification process so you'll be ready to bail
  3. Help educate newcomers to bitcoin about the transaction issue, steer them towards SegWit wallets from day one, and encourage them to avoid ever purchasing bitcoin through non-SegWit ready exchanges that are harming bitcoin.
  4. Spread the word! Conact individuals, websites, etc that use bitcoin, explain the benefits of SegWit to everyone, and request they make the switch
IMPORTANT NOTE: The mempool is currently still quite backlogged. If you are a long-term holder and really have no reason to move your bitcoins at this time, wait until the mempool starts to clear and transaction fees go down before moving your bitcoins to a SegWit address or SegWit friendly exchange.
SELECTED TOP EXCHANGES BY SEGWIT & BATCHING STATUS
Exchange Segwit Status Batching Status
Binance NOT READY Yes
Bitfinex Ready ?
Bitonic Ready ? Yes
Bitstamp Deployed Yes
Bittrex ? Yes
Coinbase/GDAX NOT READY No
Gemini Ready No
HitBTC Deployed Yes
Huboi ? ?
Kraken Ready Yes
LocalBitcoins Ready ?
OKEx ? ?
Poloniex ? Yes
QuadrigaCX Deployed Yes
Shapeshift Deployed No
Source 1
Source 2
SELECTED WALLETS THAT HAVE SEGWIT ALREADY
Make sure you have a SegWit capable wallet installed and ready to use for your next bitcoin transaction
SegWit Enabled Wallets Wallet Type
Ledger Nano S Hardware
Trezor Hardware
Electrum Desktop
Armory Desktop
Edge iOS
GreenAddress iOS
BitWallet iOS
Samourai Android
GreenBits Android
Electrum Android
FAQs
If I'm a HODLer, will it help to send my BTC to a SegWit address now?
  • No, just get ready now so that your NEXT transaction will be to a SegWit wallet. Avoid burdening the network with any unneccessary transactions for now.
Can you please tell me how to move my bitcoins to SegWit address in Bitcoin core wallet? Does the sender or receiver matter?
  • The Bitcoin core wallet does not yet have a GUI for its SegWit functionality. Download Electrum v3.0.3 to generate a SegWit address.
    A transaction between two SegWit addresses is a SegWit transaction.
    A transaction sent from a SegWit address to a non-SegWit address is a SegWit transaction.
    A transaction sent from a non-SegWit address to a SegWit address is NOT a SegWit transaction. You can send a SegWit Tx if the sending address is a SegWit address.
    Source
What wallet are you using to "batch your sends"? And how can I do that?
  • Using Electrum, the "Tools" menu option: "Pay to many".
    Just enter your receive addresses and the amounts for each, and you can send multiple transactions for nearly the price of one.
Why doesn't the Core Wallet yet support SegWit?
  • The Core Wallet supports SegWit, but its GUI doesn't. The next update will likely have GUI support built-in
Why isn't a large exchange like Coinbase SegWit ready & deployed when much smaller exchanges already are? Why do they default to high fees? Where is the leadership there?
SEGWIT BLOG GUIDES
PREVIOUS DAY'S THREADS
There's lots of excellent info in the comments of the previous threads:
Edit: Bitonic batching status updated to 'Yes'
submitted by Bastiat to Bitcoin [link] [comments]

Day 3: I will repost this guide daily until available solutions like SegWit & order batching are mass adopted, the mempool is empty once again, and transaction fees are low. ARE YOU PART OF THE SOLUTION? News: Unconfirmed TX's @ 274K, more exchanges adding SegWit, Core prioritizes SegWit GUI

BACKGROUND
Subhan Nadeem has pointed out that:
If every transaction in the Bitcoin network was a SegWit transaction today, blocks would contain up to 8,000 transactions, and the 138,000 unconfirmed transaction backlog would disappear instantly. Transaction fees would be almost non-existent once again.
A few thousand bitcoin users from /Bitcoin switching to making their next transactions SegWit transactions will help take pressure off the network now, and together we can encourage exchanges/wallets to rapidly deploy SegWit for everyone ASAP. Let's make it happen. You can help by taking one or more of the action steps below.
ACTION STEPS
  1. If your favorite wallet has not yet implemented SegWit, kindly ask them to do so immediately. In the meantime start using a wallet that has already implemented SegWit.
  2. If your favorite exchange has not yet implemented SegWit, try to avoid making any further purchases of bitcoin at that exchange and politely inform them that if they do not enable SegWit within 30-days they will lose your business. Sign-up for an account at a SegWit deployed/ready exchange now and initiate the verification process so you'll be ready to bail
  3. Help educate newcomers to bitcoin about the transaction issue, steer them towards SegWit wallets from day one, and encourage them to avoid ever purchasing bitcoin through non-SegWit ready exchanges that are harming bitcoin
IMPORTANT NOTE: The mempool is currently overflowing. If you are a long-term holder and really have no reason to move your bitcoins at this time, wait until the mempool starts to clear and transaction fees go down before moving your bitcoins to a SegWit address or SegWit friendly exchange
SELECTED TOP EXCHANGES BY SEGWIT & BATCHING STATUS
Exchange Segwit Status Batching Status
Binance ? NOT READY Yes
Bitfinex Ready ?
Bitonic Ready ?
Bitstamp Deployed Yes
Bittrex ? Yes
Coinbase/GDAX NOT READY No
Gemini Ready No
HitBTC Ready Deployed Yes
Huboi ? ?
Kraken Ready Yes
LocalBitcoins Ready ?
OKEx ? ?
Poloniex ? Yes
QuadrigaCX Deployed Yes
Shapeshift Deployed No
Source 1(https://web.archive.org/web/20171212214514/https://bitcoincore.org/en/SegWit_adoption/)
Source 2
WALLETS
Make sure you have a SegWit capable wallet installed and ready to use for your next bitcoin transaction
SegWit Enabled Wallets Wallet Type
Ledger Nano S Hardware
Trezor Hardware
Electrum Desktop
Armory Desktop
Edge iOS
GreenAddress iOS
BitWallet iOS
Samourai Android
GreenBits Android
Electrum Android
TODAY's NEWS/DEVELOPMENTS/VICTORIES
MEMPOOL/SEGWIT STATISTICS
FAQs
If I'm a HODLer, will it help to send my BTC to a SegWit address now?
  • No, just get ready now so that your NEXT transaction will be to a SegWit wallet. Avoid burdening the network with any unneccessary transactions for now.
Can you please tell me how to move my bitcoins to SegWit address in Bitcoin core wallet? Does the sender or receiver matter?
  • The Bitcoin core wallet does not yet have a GUI for its SegWit functionality. Download Electrum v3.0.3 to generate a SegWit address.
    A transaction between two SegWit addresses is a SegWit transaction.
    A transaction sent from a SegWit address to a non-SegWit address is a SegWit transaction.
    A transaction sent from a non-SegWit address to a SegWit address is NOT a SegWit transaction. You can send a SegWit Tx if the sending address is a SegWit address.
    Source
What wallet are you using to "batch your sends"? And how can I do that?
  • Using Electrum, the "Tools" menu option: "Pay to many".
    Just enter your receive addresses and the amounts for each, and you can send multiple transactions for nearly the price of one.
Why doesn't the Core Wallet yet support SegWit?
  • The Core Wallet supports SegWit, but its GUI doesn't. The next update will likely have GUI support built-in
Why isn't a large exchange like Coinbase SegWit ready & deployed when much smaller exchanges already are? Why do they default to high fees? Where is the leadership there?
SEGWIT BLOG GUIDES
PREVIOUS DAY'S THREADS
There's lots of excellent info in the comments of the previous threads:
Edit: Updated Segwit Exchange Status for Binance and HitBTC
submitted by Bastiat to Bitcoin [link] [comments]

Day 9: I will post this guide regularly until available solutions like SegWit, order batching, and Lightning payment channels are mass adopted, the mempool is empty once again, and tx fees are low. Have you done your part?

BACKGROUND
Segregated Witness (SegWit) was activated on the Bitcoin network August 24 2017 as a soft fork that is backward compatible with previous bitcoin transactions (Understanding Segregated Witness). Since that time wallets and exchanges have been slow to deploy SegWit, and the majority of users have not made the switch themselves.
On Dec 18 2017 Subhan Nadeem has pointed out that: If every transaction in the Bitcoin network was a SegWit transaction today, blocks would contain up to 8,000 transactions, and the 138,000 unconfirmed transaction backlog would disappear instantly. Transaction fees would be almost non-existent once again.
Mass SegWit use alone could empty the mempool, result in blocks that are not completely full, and make it possible to include transactions with $0 fee once again.
On Jan 11 2018 when BTC sends went offline at Coinbase the mempool began to rapidly empty. Later in the day when service was restored there was a sharp spike up in the mempool. Subsequently, that afternoon Brian Armstrong finally had to break his silence on the topic and admitted Coinbase is working on SegWit but has still not deployed it. It appears that this is an important data point that indicates if just a few major exchanges would deploy SegWit the high fees bitcoin is experiencing would be eliminated.
SegWit is just one technique available to exchanges and users to reduce pressure on the Bitcoin network. You can make the switch to SegWit on your next transaction, and pressure exchanges to deploy SegWit NOW along with other actions that will reduce their transaction impact on the network. You can help by taking one or more of the action steps below.
ACTION STEPS
  1. If your favorite wallet has not yet implemented SegWit, kindly ask them to do so immediately. If your wallet is not committed to implementing SegWit fast, speak out online any way you can and turn up the pressure. In the meantime start using a wallet that has already implemented SegWit.
  2. If your favorite exchange has not yet implemented SegWit, try to avoid making any further purchases of bitcoin at that exchange and politely inform them that if they do not enable SegWit within 30-days they will lose your business. Sign-up for an account at a SegWit deployed/ready exchange now and initiate the verification process so you'll be ready to bail
  3. Help educate newcomers to bitcoin about the transaction issue, steer them towards SegWit wallets from day one, and encourage them to avoid ever purchasing bitcoin through non-SegWit ready exchanges that are harming bitcoin.
  4. Spread the word! Contact individuals, websites, etc that use bitcoin, explain the benefits of SegWit to everyone, and request they make the switch. Use social media to point out the benefits of SegWit adoption.
IMPORTANT NOTE: The mempool is currently still quite backlogged. If you are a long-term holder and really have no reason to move your bitcoins at this time, wait until the mempool starts to clear and transaction fees go down before moving your bitcoins to a SegWit address or SegWit friendly exchange.
BEYOND SEGWIT - BATCHING, PAYMENT CHANNELS, LIGHTNING
Batching is another great way that exchanges can reduce their fees. See: Saving up to 80% on Bitcoin transaction fees by batching payments. Despite the benefits of batching, some exchanges have been slow to implement it. Users should demand this or walk.
Beyond SegWit & Batching, Lightning Network integration will have even more effect. Lightning is now active and exchanges could setup payment channels between each other so that on-chain transactions need not take place. Some ideas have to outline how that might work are here: Google Doc - Lightning Exchanges. Which two bitcoin exchanges will be the first to establish a lightning channel between themselves and offer free/instant transfers between them for their customers? This will happen in 2018
MEMPOOL/SEGWIT STATISTICS
NEWS/DEVELOPMENTS/VICTORIES
SELECTED TOP EXCHANGES BY BATCHING & SEGWIT STATUS
Exchange Segwit Status Batching Status
Binance NOT READY Yes
Bitfinex Ready Yes
Bitonic Ready Yes
Bitstamp Deployed Yes
Bittrex ? Yes
Coinbase/GDAX NOT READY No
Gemini Ready No
HitBTC Deployed Yes
Huboi ? ?
Kraken Deployed Yes
LocalBitcoins Deployed Yes
OKEx ? ?
Poloniex ? Yes
QuadrigaCX Deployed Yes
Shapeshift Deployed No
Note: all exchanges that have deployed SegWit are currently only sending to p2sh SegWit addresses for now. No exchange will send to a bech32 address like the ones that Electrum generates
Source 1: BitcoinCore.org
Source 2: /Bitcoin
Official statements from exchanges:
SELECTED WALLETS THAT HAVE SEGWIT ALREADY
Make sure you have a SegWit capable wallet installed and ready to use for your next bitcoin transaction
SegWit Enabled Wallets Wallet Type
Ledger Nano S Hardware
Trezor Hardware
Electrum Desktop
Armory Desktop
Edge iOS
GreenAddress iOS
BitWallet iOS
Samourai Android
GreenBits Android
Electrum Android
SegWitAddress.org Paper
FAQs
If I'm a HODLer, will it help to send my BTC to a SegWit address now?
No, just get ready now so that your NEXT transaction will be to a SegWit wallet. Avoid burdening the network with any unnecessary transactions for now.
Why is SegWit adoption going so slowly? Is it a time-consuming process, is there risk involved, is it laziness, or something else?
SegWit will require some extra work to be done right and securely. Also, most exchanges let the user pay the fee, and up to now users have not been overly concerned about fees so for some exchanges it hasn't been a priority.
Once Segwit is FULLY adopted, what do we see the fees/transaction times going to?
Times stay the same - fees will go down. How much and for how long depends on what the demand for transactions will be at that time.
What determines bitcoin transaction fees, to begin with?
Fees are charged per byte of data and are bid up by users. Miners will typically include the transaction with the highest fee/byte first.
Can you please tell me how to move my bitcoins to SegWit address in Bitcoin core wallet? Does the sender or receiver matter?
The Bitcoin core wallet does not yet have a GUI for its SegWit functionality. Download the latest version of Electrum to generate a SegWit address.
A transaction between two SegWit addresses is a SegWit transaction.
A transaction sent from a SegWit address to a non-SegWit address is a SegWit transaction.
A transaction sent from a non-SegWit address to a SegWit address is NOT a SegWit transaction. You can send a SegWit Tx if the sending address is a SegWit address.
Source: HowToToken
What wallet are you using to "batch your sends"? And how can I do that?
Using Electrum, the "Tools" menu option: "Pay to many".
Just enter your receive addresses and the amounts for each, and you can send multiple transactions for nearly the price of one.
Why doesn't the Core Wallet yet support SegWit?
The Core Wallet supports SegWit, but its GUI doesn't. The next update will likely have GUI support built-in
Why isn't a large exchange like Coinbase SegWit ready & deployed when much smaller exchanges already are? Why do they default to high fees? Where is the leadership there?
Draw your own conclusions based on their own words:
March 2016 - Coinbase CEO Brian Armstrong has reservations about Core
Dec 2017 - Coinbase is STILL working on Segwit
P2SH/bech32 FAQs
What are the two SegWit address formats and why do they exist?
It's been a challenge for wallet developers to implement SegWit in a way that users can easily and without too much disruption migrate from legacy to SegWit addresses. The first wallets to enable SegWit addresses – Ledger, Trezor, Core, GreenAddress – use so-called “nested P2SH addresses.” This means they take the existing Pay 2 Script Hash address – starting with a “3” – and put a SegWit address into it. This enables a high grade of compatibility to exist wallets as every wallet is familiar with these addresses, but it is a workaround which results in SegWit transactions needing around 10 percent more space than they otherwise would.
Electrum 3.0 was the first wallet to use bech32 addresses instead of nested p2sh addresses.
Source: BTCManager.com
What is the difference in address format between SegWit address formats P2SH and bech32?
P2SH starts with "3..."
bech32 starts with "bc1..."
Which addresses can I send from/to?
P2SH Segwit addresses can be sent to using older Bitcoin software with no Segwit support. This supports backward compatibility
bech32 can only be sent to from newer Bitcoin software that support bech32. Ex: Electrum
Source: BitcoinTalk.org
Why did ThePirateBay put up two Bitcoin donation addresses on their frontpage, one bech32 and one not?
The address starting with a "3..." is a P2SH SegWit address that can be sent BTC from any bitcoin address including a legacy address. The address starting with a "bc1..." is a bech32 SegWit address that can only be sent to from newer wallets that support bech32.
SEGWIT BLOG GUIDES
PREVIOUS DAY'S THREADS
There's lots of excellent info in the comments of the previous threads:
submitted by Bastiat to Bitcoin [link] [comments]

Day 8: I will post this guide regularly until available solutions like SegWit, order batching, and Lightning payment channels are mass adopted, the mempool is empty once again, and tx fees are low. BTC Core SegWit GUI coming May 1, Coinbase incompetence exposed, more exchanges deploy SegWit

BACKGROUND
Segregated Witness (SegWit) was activated on the Bitcoin network August 24 2017 as a soft fork that is backward compatible with previous bitcoin transactions (Understanding Segregated Witness). Since that time wallets and exchanges have been slow to deploy SegWit, and the majority of users have not made the switch themselves.
On Dec 18 2017 Subhan Nadeem has pointed out that: If every transaction in the Bitcoin network was a SegWit transaction today, blocks would contain up to 8,000 transactions, and the 138,000 unconfirmed transaction backlog would disappear instantly. Transaction fees would be almost non-existent once again.
Mass SegWit use alone could empty the mempool, result in blocks that are not completely full, and make it possible to include transactions with $0 fee once again.
On Jan 11 2018 when BTC sends went offline at Coinbase the mempool began to rapidly empty. Later in the day when service was restored there was a sharp spike up in the mempool. Subsequently, that afternoon Brian Armstrong finally had to break his silence on the topic and admitted Coinbase is working on SegWit but has still not deployed it. It appears that the high fees bitcoin is experiencing could be easily addressed and need not exist.
SegWit is just one technique available to exchanges and users to reduce pressure on the Bitcoin network. You can make the switch to SegWit on your next transaction, and pressure exchanges to deploy SegWit NOW along with other actions that will reduce their transaction impact on the network. You can help by taking one or more of the action steps below.
ACTION STEPS
  1. If your favorite wallet has not yet implemented SegWit, kindly ask them to do so immediately. If your wallet is not committed to implementing SegWit fast, speak out online any way you can and turn up the pressure. In the meantime start using a wallet that has already implemented SegWit.
  2. If your favorite exchange has not yet implemented SegWit, try to avoid making any further purchases of bitcoin at that exchange and politely inform them that if they do not enable SegWit within 30-days they will lose your business. Sign-up for an account at a SegWit deployed/ready exchange now and initiate the verification process so you'll be ready to bail
  3. Help educate newcomers to bitcoin about the transaction issue, steer them towards SegWit wallets from day one, and encourage them to avoid ever purchasing bitcoin through non-SegWit ready exchanges that are harming bitcoin.
  4. Spread the word! Contact individuals, websites, etc that use bitcoin, explain the benefits of SegWit to everyone, and request they make the switch. Use social media to point out the benefits of SegWit adoption.
IMPORTANT NOTE: The mempool is currently still quite backlogged. If you are a long-term holder and really have no reason to move your bitcoins at this time, wait until the mempool starts to clear and transaction fees go down before moving your bitcoins to a SegWit address or SegWit friendly exchange.
BEYOND SEGWIT - BATCHING, PAYMENT CHANNELS, LIGHTNING
Batching is another great way that exchanges can reduce their fees. See: Saving up to 80% on Bitcoin transaction fees by batching payments. Despite the benefits of batching, some exchanges have been slow to implement it. Users should demand this or walk.
Beyond SegWit & Batching, Lightning Network integration will have even more effect. Lightning is now active and exchanges could setup payment channels between each other so that on-chain transactions need not take place. Some ideas have to outline how that might work are here: Google Doc - Lightning Exchanges. Which two bitcoin exchanges will be the first to establish a lightning channel between themselves and offer free/instant transfers between them for their customers? This will happen in 2018
MEMPOOL/SEGWIT STATISTICS
NEWS/DEVELOPMENTS/VICTORIES
SELECTED TOP EXCHANGES BY BATCHING & SEGWIT STATUS
Exchange Segwit Status Batching Status
Binance NOT READY Yes
Bitfinex Ready Yes
Bitonic Ready Yes
Bitstamp Deployed Yes
Bittrex ? Yes
Coinbase/GDAX NOT READY No
Gemini Ready No
HitBTC Deployed Yes
Huboi ? ?
Kraken Deployed Yes
LocalBitcoins Deployed Yes
OKEx ? ?
Poloniex ? Yes
QuadrigaCX Deployed Yes
Shapeshift Deployed No
Note: all exchanges that have deployed SegWit are currently only sending to p2sh SegWit addresses for now. No exchange will send to a bech32 address like the ones that Electrum generates
Source 1: BitcoinCore.org
Source 2: /Bitcoin
Official statements from exchanges:
SELECTED WALLETS THAT HAVE SEGWIT ALREADY
Make sure you have a SegWit capable wallet installed and ready to use for your next bitcoin transaction
SegWit Enabled Wallets Wallet Type
Ledger Nano S Hardware
Trezor Hardware
Electrum Desktop
Armory Desktop
Edge iOS
GreenAddress iOS
BitWallet iOS
Samourai Android
GreenBits Android
Electrum Android
SegWitAddress.org Paper
FAQs
If I'm a HODLer, will it help to send my BTC to a SegWit address now?
No, just get ready now so that your NEXT transaction will be to a SegWit wallet. Avoid burdening the network with any unnecessary transactions for now.
Why is SegWit adoption going so slowly? Is it a time-consuming process, is there risk involved, is it laziness, or something else?
SegWit will require some extra work to be done right and securely. Also, most exchanges let the user pay the fee, and up to now users have not been overly concerned about fees so for some exchanges it hasn't been a priority.
Once Segwit is FULLY adopted, what do we see the fees/transaction times going to?
Times stay the same - fees will go down. How much and for how long depends on what the demand for transactions will be at that time.
What determines bitcoin transaction fees, to begin with?
Fees are charged per byte of data and are bid up by users. Miners will typically include the transaction with the highest fee/byte first.
Can you please tell me how to move my bitcoins to SegWit address in Bitcoin core wallet? Does the sender or receiver matter?
The Bitcoin core wallet does not yet have a GUI for its SegWit functionality. Download the latest version of Electrum to generate a SegWit address.
A transaction between two SegWit addresses is a SegWit transaction.
A transaction sent from a SegWit address to a non-SegWit address is a SegWit transaction.
A transaction sent from a non-SegWit address to a SegWit address is NOT a SegWit transaction. You can send a SegWit Tx if the sending address is a SegWit address.
Source: HowToToken
What wallet are you using to "batch your sends"? And how can I do that?
Using Electrum, the "Tools" menu option: "Pay to many".
Just enter your receive addresses and the amounts for each, and you can send multiple transactions for nearly the price of one.
Why doesn't the Core Wallet yet support SegWit?
The Core Wallet supports SegWit, but its GUI doesn't. The next update will likely have GUI support built-in
Why isn't a large exchange like Coinbase SegWit ready & deployed when much smaller exchanges already are? Why do they default to high fees? Where is the leadership there?
Draw your own conclusions based on their own words:
March 2016 - Coinbase CEO Brian Armstrong has reservations about Core
Dec 2017 - Coinbase is STILL working on Segwit
P2SH/bech32 FAQs
What are the two SegWit address formats and why do they exist?
It's been a challenge for wallet developers to implement SegWit in a way that users can easily and without too much disruption migrate from legacy to SegWit addresses. The first wallets to enable SegWit addresses – Ledger, Trezor, Core, GreenAddress – use so-called “nested P2SH addresses.” This means they take the existing Pay 2 Script Hash address – starting with a “3” – and put a SegWit address into it. This enables a high grade of compatibility to exist wallets as every wallet is familiar with these addresses, but it is a workaround which results in SegWit transactions needing around 10 percent more space than they otherwise would.
Electrum 3.0 was the first wallet to use bech32 addresses instead of nested p2sh addresses.
Source: BTCManager.com
What is the difference in address format between SegWit address formats P2SH and bech32?
P2SH starts with "3..."
bech32 starts with "bc1..."
Which addresses can I send from/to?
P2SH Segwit addresses can be sent to using older Bitcoin software with no Segwit support. This supports backward compatibility
bech32 can only be sent to from newer Bitcoin software that support bech32. Ex: Electrum
Source: BitcoinTalk.org
Why did ThePirateBay put up two Bitcoin donation addresses on their frontpage, one bech32 and one not?
The address starting with a "3..." is a P2SH SegWit address that can be sent BTC from any bitcoin address including a legacy address. The address starting with a "bc1..." is a bech32 SegWit address that can only be sent to from newer wallets that support bech32.
SEGWIT BLOG GUIDES
PREVIOUS DAY'S THREADS
There's lots of excellent info in the comments of the previous threads:
submitted by Bastiat to Bitcoin [link] [comments]

BITCOIN MOVE INCOMING?!  Binance 20x Margin Vs. BitMEX & Bybit Binance Tutorial  ID & Face Verification Satoshi Germany News - YouTube How to Buy Altcoins on BINANCE Exchange - (Beginners Tutorial) 2018 BINANCE EXCHANGE TUTORIAL 2018 - Best Place to BUY/TRADE BITCOIN and ALTCOINS

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BITCOIN MOVE INCOMING?! Binance 20x Margin Vs. BitMEX & Bybit

Once the deposit of Bitcoin is confirmed into the Binance account you can start buying your altcoins. In the last section of the video we will go into the Binance advanced exchange chart and I ... * Warum Bitcoin (BTC) krisenfester als Gold und Silber ist! * Bitcoin Prognose: Analyst vermutet BTC bei $18.000 vor Halbierung ... Euer "Satoshi Germany" Team #Bitcoin #bitcoindeutsch #Gold # ... Binance is probably the best place right now to buy and trade bitcoin and altcoins such as ethereum, qtum, iota and many more. In regards to the "Instructional Video Competition" Binance is doing ... Close. This video is unavailable. In this Binance tutorial, we walk you through the ID & Face Verification process which allows you to purchase cryptocurrency (xrp, btc, eth) on the platform. #Binance #BinanceTutorial # ... Bitcoin Technical Analysis & Bitcoin News Today: Is Binance margin trading the new thing? On Binance you can now trade with up to 20x leverage on many cryptocurrencies. People are leaving BitMEX ...

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