BTC: Difficulty-per-Subsidy Price Fit — Expanding Slope

Bitcoin Difficulty-per-Subsidy Price Fit — Expanding Slope was 0.445 on 7 Nov 2026 (latest daily value).

The slope of the difficulty-per-subsidy pricing model: how many percent price rises, on average, for each percent rise in mining difficulty per BTC of block subsidy, fitted to all days up to the day shown.

Why use it. Shows how stable the model's fitted relationship is as history accumulates. How to read it. Early values move as history accumulates; a flat line means new days confirm the fitted relationship. A statistical parameter, not a forecast.

Calculation. Ordinary least-squares slope of ln(daily close) on ln(difficulty ÷ scheduled subsidy per block) over every day from 2010-07-17 through the day shown (at least 365 days). Calculated from our own validated Bitcoin Core node history; final once the closed UTC day has six confirmations. Daily closes are the accepted daily valuation prices: historical closes from The Bitcoin Time Machine (CC BY 4.0), then our own recorded Alternative.me quotes; they stay provisional and revisable.