Also known as: shared ledger,decentralised ledger
Generally described as a decentralized ledger, that may have additional embedded functionality, or the ability for user scripting of functionality
A distributed database that maintains a continuously-growing list of records secured from tampering and revision. Each block contains a timestamp and a link to a previous block. The blockchain - conceived in 2008 and first implemented in 2009 - is the main technical innovation of bitcoin, where it serves as the public ledger for bitcoin transactions. In this case, every user is allowed to connect to the network, send new transactions to it, verify transactions, and attempt to create new blocks. The bitcoin blockchain design has been the inspiration for other applications.
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