Blockchain is a system in which a record of transactions made in bitcoin or another cryptocurrency are maintained across several computers that are linked in a peer-to-peer network. Blockchain.com (formerly Blockchain.info) is a Bitcoin block explorer service, as well as a cryptocurrency wallet and a cryptocurrency exchange supporting Bitcoin, Bitcoin Cash, and Ethereum. They also provide Bitcoin data charts, stats, and market information. Blockchain technology is most simply defined as a decentralized, distributed ledger that records the provenance of a digital asset.

Original author – Satoshi Nakamoto
Launch date – August 2011
Website – blockchain.com