A Blockchain is block chain is a sequnce list of records called blocks, which are linked and secured using crptography. Each block contains hash pointer as a link to a previous block, a tim` a peer-to-peer network.

Differnet between blockchain and client-server database:

a) Client-Server Network:

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User (client) with permissions associated with their account can create and modify records that are stored on a centralized server. User has to get updated version of the database records from server, when they wants to change database records. Control of the database remains with administrators, allowing for access and permissions to be maintained be a central authority.

b) Blockchain Network:

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Blockchain is distributed database, so all user can have a master copy of the database. All user transaction can be recorded into distributed datbase. There is no admin control to access that database. Each transaction is shared and verified by all users. This is providing in build security for the network A Blockchain is block chain is a sequnce list of records called blocks, which are linked and secured using crptography. Each block contains hash pointer as a link to a previous block, a tim` a peer-to-peer network.

BLOCKCHAIN TECHNOLOGY
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