Block Height
Fundamentals● Common
The sequential number of a block in the blockchain, counting from the genesis block (height 0). Used to reference specific points in Bitcoin's history. Current height indicates how many blocks have been mined since Bitcoin's inception.
Technical Notes
Required in coinbase since BIP-34 to prevent duplicate txids. Height ~870,000 (late 2024). Halving occurs at heights: 210000, 420000, 630000, 840000. Timelocks can specify height or timestamp. Orphaned blocks may have same height as canonical chain.
Metadata
Visibility: Public
Created:1/3/2026by System