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Spv(simplified payment verification) client
| Глоссарий по криптовалютам и блокчейну |
Spv clients are bitcoin lightweight clients which do not download and store the whole blockchain locally. these wallets provide a way to verify payments without having to download the complete blockchain. an spv client only downloads the block headers by connecting to a full node
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Lightweight, английский
- Легкий; малого веса
- Человек, ниже среднего веса; животное или вещь легче стандартного веса несерьезный, поверхностный человек
Blockchain, английский
- A blockchain is a type of distributed ledger, comprised of unchangable, digitally recorded data in packages called blocks (rather like collating them on to a single sheet of paper). each block is then ‘chained’ to the next block, using a cryptographic signature. this allows block chains to be used like a ledger, which can be shared and accessed by anyone with the appropriate permissions.
- Shared, trusted, public ledger of transactions, that everyone can inspect but which no single user controls. it is a cryptographed, secure, tamper resistant distributed database. it solves a complex mathematical problem to exist. a blockchain is a perfect place to store value, identities, agreements, property rights, credentials, etc. once you put something like a bitcoin into it, it will stay there forever. it is decentralized, disintermediated, cheap and censorship resistant. applications of blockchain: bitcoin (cryptocurrency), namecoin (wants to replace the entire dns system of the internet), or sia (a decentralized cloud storage), ethereum (turing complete virtual machine where you can run any smart contract); any centralized service like ebay, dropbox can potentially be built in a decentralized way using blockchain technology, considerably lowering transaction costs
- Think of blockchain as a database or a spreadsheet. but a really special spreadsheet. there`s no centralized master copy. instead, it`s shared on many computers. it`s special because you can only add to it. there`s no editing of history. the database is divided into chronological sub-sheets. these are the blocks. the last line of any block summarizes all of the data in the block, and ч and this is pretty important ч appears as the first line of the next block. if anyone tries to edit a block, the last line will change and will not match the first line of the next block. the network sees this corrupted block and immediately replaces it. this ingenious trick makes it futile to rewrite history and guarantees an unprecedented degree of security. blockchain was invented by haber and stornetta in 1991 but made famous in the satoshi nakamoto`s bitcoin paper.
Connecting, английский
Связывающий; соединяющий
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State channel, английский
State channels are interactions which get conducted off the blockchain without significantly increasing the risk of any participant. moving these interactions off of the chain without requiring any additional trust can lead to significant improvements in cost and speed. state channels work by locking part of the blockchain state so that a specific set of participants must completely agree with each other to update it
Solidity, английский
- Solidity is a programming language designed for developing smart contracts. its syntax is similar to that of javascript, and it is intended to compile into bytecode for the ethereum virtual machine(evm)
- Язык программирования на платформе ethereum для разработки умных контрактов.
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