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What is the books hash?

A hash chained over each committed window of book entries, rule R13; the Sync page shows the latest.

The books hash, or consensus hash, is rule R13 of BTI's ruleset: each committed window of book entries is chained into one hash. block.space's Sync page shows the latest window. On 2026-10-21 it covered blocks 972,300 to 972,399, with 361,951 entries, and showed the hash's first sixteen hex digits, b734098827f672a2.

Sources #

  1. block.space Sync page: the three tiers, their heights and the latest consensus-hash window · block.space/sync
  2. Blockspace Co. records

Updated 2026-10-21 · This page as Markdown

blockspace.wiki is written by Blockspace Co. from its published documents and records and the live data of its own Bitcoin node and indexers. Every page cites its sources; corrections go in the errata.