Block chain

Block chain may refer to:

Block chain (database), sequential transaction database found in cryptocurrencies derived from bitcoin

Bar-link chain, a kind of drive chain

Blockchain.info, a bitcoin wallet and explorer service, named after bitcoin's block chain database

Cipher block chaining, a block cipher mode of operation in cryptography, usually abbreviated as CBC

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Block_chain

Block chain (database)

A block chain or blockchain is a permissionless distributed database based on the bitcoin protocol that maintains a continuously growing list of data records hardened against tampering and revision, even by its operators. The initial and most widely known application of block chain technology is the public ledger of transactions for bitcoin, which has been the inspiration for similar implementations often known as altchains.

Etymology

The block chain consists of blocks that hold timestamped batches of recent valid transactions. Each block includes the hash of the prior block, linking the blocks together. The linked blocks form a chain, with each additional block reinforcing those before it, thus giving the database type its name.

Model

A block chain implementation consists of two kinds of records: transactions and blocks.

Transactions

Transactions are the content to be stored in the block chain.Transactions are created by participants using the system. In the case of cryptocurrencies, a transaction is created anytime a bitcoin owner sends cryptocurrency to another.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Block_chain_(database)