# blockspace.wiki

Everything about Bitcoin blockspace, written down.

URL: https://blockspace.wiki/

A place to write all information and documentation about [blockspace](https://blockspace.wiki/glossary/blockspace/): the projects of Blockspace Holdings and their glossaries, the concepts behind them, the token protocols that write to Bitcoin, how their bytes are measured, and the data and APIs anyone can read.

Every page cites its sources. Theory is labelled as theory: Blockspace Value Theory is a living document and an untested thesis, and BTP and BYTES are drafts describing things that do not exist. A figure is always given with its "as of".

**The meter today.** [BTI](https://blockspace.wiki/glossary/bti/) has counted every byte of Bitcoin up to block 972,302: 777.04 GB in 1,464,151,063 transactions (as of block 972,302, 2026-10-20 10:16:21 UTC). Of those bytes, Book A attributes 133.75 GB to 126,874,922 tokens across 21 protocols (as of block 972,299, 2026-10-20 09:30:48 UTC).

Sources:

- Blockspace Holdings records
- block.space meter and summary APIs · https://block.space/api/summary
- block.space docs: BTI · https://block.space/docs/bti

Live figures: books as of block 972,299, 2026-10-20 09:30:48 UTC; census as of block 972,302, 2026-10-20 10:16:21 UTC

Updated: 2026-10-20