Cointime Supply
Cointime economics counts coin-days rather than coins: a bitcoin sitting still for ten days accrues ten coin-days, and moving it destroys them. Destroyed divided by created coin-days gives liveliness — the active share of supply IS that number, and the vaulted share is its counterpart. Measured on our own data (6,438 days): vaulted + active equals circulating supply to 0.000000 BTC. The common reading "rising vaulted share means accumulation" has a twin almost nobody mentions: the same curve rises when simply nothing happens, because coin-days accrue from the passage of time alone.
- Formula:
- active = liveliness × circulating supply · vaulted = circulating supply − active
- Originator:
- Cointime framework, 2023 (ARK Invest / Glassnode)
- Data source:
- Bitcoin Research Kit (vaulted_supply / active_supply)
Strategies to backtest
Thematically related strategies from our library — try them in the backtest engine or read up on the methodology.
The benchmark for everything else — buy on day one, hold forever. The reference every strategy is measured against.
Open strategy →Buy a fixed amount on a fixed schedule — week after week, regardless of price. Smooths volatility, removes timing decisions.
Open strategy →More Bitcoin indicators
BTC supply held by large addresses (≥100 / ≥1k / ≥10k BTC) over time. A rising line means accumulation. Address-based proxy for whale behaviour.
Stacked-area chart over 13 holding-period bands from <1 day to 10+ years. Reveals how "old" supply re-enters circulation before each bull run.
111-day SMA vs. 350-day SMA × 2. Classic top signal by Philip Swift — historical crossovers nailed every BTC bull-run top to within days.