Blockchain
A blockchain is an append-only digital ledger storing a set of time-ordered transactions grouped in blocks that are linked together using cryptographic hashes.
All edits by Evgeniy Zelihin
Each block in the blockchain contains a timestamp, transactional data, and a cryptographic hash link to the previous block. This creates a time-ordered chain of links from the genesis block to the most recent block that cannot be altered retroactively without alteration of all subsequent blocks, requiring a collusion of a large portion of the network.
Each block in the blockchain contains a timestamp, transactional data, and a cryptographic hash link to the previous block. This creates a time-ordered chain of links from the genesis block to the most recent block that cannot be altered retroactively without alteration of all subsequent blocks, requiring a collusion of a large portion of the network.
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