What is Block chain ?

A Database Or a ledger that maintains a continuously growing list of data records or transaction.

Block Chain are ledgers like (EXCEL SPREED SHEET) but they accept input from lots of different parties,

The ledgers can only be change when there is a consensus among the group.

That makes them more Secure , and its means there is no need to approve central authority to approve transaction

BLOCK CHAIN AVOID DUPLICATION AND CONTROLS INFORMATION

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THERE IS NO NEED FOR CENTRALIZED AUTHORITY TO VALIDATE TRANSACTION TO VALIDATE TRANSACTION WHEN MULTIPLE BANKS , ASSETS MANAGER, CUSTODIANS CAN AGREE AND VALIDATE THEM INSTEAD.

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WHEN BLOCK CHAIN TRANSACTION TAKE, SMART CONTRACTS AUTOMATICALLY EXECUTES THEMSELVES
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HERE IS A SOME HELPFUL DEFINITION

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