BTC: Recognized Mining Labels Accounting for Over Half of Blocks

Bitcoin Recognized Mining Labels Accounting for Over Half of Blocks was 3 labels on 7 Nov 2026 (latest daily value).

The smallest number of recognized labels whose combined counts strictly exceed half of all observed blocks.

Why use it. Describe how many named labels are needed to cover a majority of the observed block population. 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. Exactly 50% does not qualify. If recognized labels together cannot exceed half, the result is undefined rather than zero. Labels can share an operator; this is not an attack threshold or proof of independent control. 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 recognized labels by full-period block count and take the first cumulative count satisfying 2 × cumulative count > all observed block count. Unknown and Ambiguous stay in the all-block denominator but are never ranked as one operator. Return the number of labels at that first strict crossing, otherwise undefined. 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.