Block Header - an element that is used as an effective tool for identifying individual blocks.

The functioning of the Bitcoin ecosystem is based on the design of digital blocks that are formed into blockchains. Each block consists of several fundamentally essential elements, due to which a complex configuration is formed. One of them is the block header, which is used as an effective tool for identifying individual blocks. Each element is personalized, which allows you to modify and update protocol data.

Header structure

All blocks are stacked in a specific sequence. Each header has 3 sets of information, as well as the following components:

• Bitcoin version number;
• hash of the previous block;
• timestamps.

Block headers are usually used by Bitcoin network developers when preparing documentation. This element is the basis for generating data for all transactions. The block continues to grow vertically until the sequence is completed.

Miners periodically hash the header. To do this, the meaning of the nonce is changed. This strategy provides direct evidence of the work done, which ultimately allows you to receive a reward.