BTC: Top Four Recognized Mining Labels Share

Bitcoin Top Four Recognized Mining Labels Share was 75.37% on 7 Nov 2026 (latest daily value).

The four largest recognized labels' combined block count as a percentage of all observed blocks.

Why use it. Compare a small group of named-label contributions without dropping unidentified blocks. How to read it. Use complete period counts before display grouping. Unknown and Ambiguous are not ranked as single operators. Empty periods are undefined. The pinned label list is applied retrospectively. Tags can be spoofed, and different labels can belong to the same operator. Read label coverage alongside these observations. Use all recognized labels when fewer than four exist. An observed all-unidentified period has zero recognized share; missing scalar buckets are undefined. Labels do not prove independent operators. Read actual source coverage and clocks. Open periods remain partial; MTP closure and six later canonical blocks govern finality. The calculation describes unsmoothed observations; chart smoothing is a separate transform.

Calculation. Rank named labels by their full-period block counts. Divide the sum of the four largest counts, or all when fewer exist, by every observed block including Unknown and Ambiguous, then multiply by 100. Use exact counts and 40-significant-digit Decimal division with half-even rounding. Match literal UTF-8 coinbase-tag bytes with ASCII-only case folding, together with the exact canonical address of coinbase output 0. One candidate gives a named label, none gives Unknown and conflicting candidates give Ambiguous. Use locally validated canonical coinbase facts and the pinned MIT-licensed mining-pool definitions; credits and the dataset revision remain in method details.