How it's measured

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

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

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"
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
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
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
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
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 #