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Oracles
| Глоссарий по криптовалютам и блокчейну |
Smart contracts on the blockchain can not access the outside network on their own. therefore oracles sit between a smart contract and the external world, providing the data needed by the smart contract to prove performance while sending its commands to external systems
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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.
Performance, английский
- Показатель деятельности. степень эффективности деятельности. производительность.
- (технические или летные) характеристики
- A way in which something works the doctors are not satisfied with the performance of the transplanted heart.
- N 1 действие; актив- ность; 2 употребление (н. хомский, см. тж. competence 2) linguistic ~ употребление языка, языковая активность (н. хомский, см. тж. linguistic competence) 1 стихотворный размер. 2 обозначающий действие, уже законченное по отношению к данному. performative a перформативный | n тра пер- форматив3 verb
- Эксплуатационные качества, ходовые качества
- Exhibition of gaits or other required routines.
- Microsoft edge developer tool to profile a web page frame rate. this tool helps you see what is happening behind the scenes when your pages are slowing down.
- The degree to which a product or service executes its specified function.
- Результаты деятельности
- A term contrasted with competence which refers to the speaker`s actual language production.
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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.
Ring signature, английский
Ring signature is a cryptographic technology that could provide a decent level of anonymisation on a blockchain. ring signatures make sure individual transaction outputs on the blockchain can’t be traced. a message signed with a ring signature is endorsed by someone in a particular group of people. one of the security properties of a ring signature is that it should be computationally infeasible to determine which of the group members’ keys was used to produce the signature
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