BTC Stock-to-Flow
LockedExisting BTC supply divided by annualised new issuance — steps up at every halving.
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What this chart shows
Methodology
S2F(t) = supply(t) / (supply(t) − supply(t − 365)). Supply is derived from mcap / close on the daily BTC OHLCV row (the marketcap column was backfilled deterministically from the halving-anchor supply curve in S10). 365-day flow window matches the original PlanB model.