BTC: Inferred Hash Rate — Halving-Day Index

Bitcoin Inferred Hash Rate — Halving-Day Index was 177.03% on 7 Nov 2026 (latest daily value).

The daily inferred network hash rate, indexed to 100 on the UTC day of each halving and restarting every epoch.

Why use it. Compare how estimated mining work evolves through each halving epoch from a common starting level. How to read it. 100 equals the halving-day value; 300 means three times it. Each halving day starts a new epoch with its own fixed baseline, and genesis starts epoch zero. A missing, zero or negative baseline leaves the whole epoch undefined, with no reseeding or filling. The baseline covers the whole halving UTC day, so it is not intraday or knowable before that day closes. Hash rate is inferred from block work, not measured capacity. Closed days only.

Calculation. 100 × the day's estimated hash rate / its value on the UTC day containing canonical height 210,000 × k for the current epoch. Halving dates come from retained native headers, not a hardcoded calendar, and the denominator stays fixed through the epoch. Decimal division then multiplication at 40 significant digits, half-even, from our own validated Bitcoin Core node.