A blockchain is a distributed database or ledger that is shared among the nodes of a computer network.
As a database, a blockchain stores information electronically in digital format. Blockchains are best known for their crucial role in satoshis systems for stock market news maintaining a secure and stock market news decentralized record of transactions. The innovation of a blockchain is that it guarantees the fidelity and security of a record of data and generates trust without the need for a trusted third party.