# How it's measured

The methodology: null is never zero, the frontier, the conservation identity, and what each board ranks.

URL: https://blockspace.wiki/methodology/

How block.space turns Bitcoin's bytes into the figures it publishes.

- [Null is never zero](https://blockspace.wiki/methodology/null-is-never-zero/): Why block.space and this wiki write "not measured" instead of 0: what a measured zero is, where nulls come from, and how the rule shows on the pages and in the APIs.
- [The frontier and "as of"](https://blockspace.wiki/methodology/the-frontier-and-as-of/): How to read the heights on block.space and this wiki: which block a figure is true to, why one page can carry several heights, and how a dated document figure differs from a live one.
- [The conservation identity](https://blockspace.wiki/methodology/the-conservation-identity/): claimed + carriage + burned + unclaimed = block size: the four categories every byte falls into, why the identity is the meter's trust anchor, and how block.space shows the check.
- [What each board ranks](https://blockspace.wiki/methodology/what-each-board-ranks/): The four block.space rankings, the leaderboard, largest inscriptions, heaviest tokens and collections: what one row is, which book each reads by default, how deep it goes, and the rules they share.
- [Coverage](https://blockspace.wiki/methodology/coverage/): How much of Book A the holders appendix can place on addresses, protocol by protocol: what the gap is made of, which protocols are not measured, and the checks behind the figure.
- [Measured findings](https://blockspace.wiki/methodology/measured-findings/): The findings of the July 2026 measurement run, each dated, and what the live meter reads now. Ratios are the durable results; shares of the chain move.

Sources:

- block.space docs: BTI · https://block.space/docs/bti
- block.space docs: measurements · https://block.space/docs/measurements
- block.space docs: rankings · https://block.space/docs/rankings

Updated: 2026-10-20