Blockchain

Blockchain is a public ledger of a timestamped, ordered, and immutable list of all transactions on the bitcoin network. Each block is identified by a hash in the chain and is linked to its previous block by referencing the previous block's hash.

In the following structure of a block, a block header is described, followed by a detailed diagram that provides an insight into the blockchain structure.

The structure of a block

Bytes

Name

Description

80

Block header

This includes fields from the block header described in the next section.

variable

Transaction counter

The field contains the total number of transactions in the block, including the coinbase transaction.

variable

Transactions

All transactions in the block.

The structure ...

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