Blockchain is a digital ledger. It’s a distributed database that allows trustworthy and permanent record keeping. Each record, or block, is timestamped and links back to a previous block. Blocks are permanent once they are created because each transaction is recorded across a number of computers. This systematic process creates the chain of records which is considered permanent and trustworthy.
The idea behind blockchain has existed since the 1990s, however it was first practically conceptualized in 2008 with the bitcoin. Bitcoin is a peer-to-peer digital currency system that uses blockchain to record transactions.
