Compare · published figures only
Signalling eras, side by side.
All numbers below already appear in the free Scaling War finding. Signalling is not preference. Pool tags are self-reported. Era bounds are not optional.
| Era | What we measure | Headline figure | Shape |
|---|---|---|---|
| Bitcoin XT / BIP101 | Version-bit signal, era-bounded | 41 blocks ever | Peak month Aug 2015: 0.2612% (12 of 4,595) vs 75% threshold |
| Bitcoin Classic / BIP109 | Bit 28 with era bounds (not forever) | 2,176 blocks · peak 5.41% | May 2016: 250 of 4,620. Naive forever-bit-28 returned 64,928 (~30× wrong) |
| CSV (control) | Same mechanism field, agreement case | ~3-month shape | e.g. 0.02% → 77.47% then withdrawn — short agreement vs SegWit stall |
| SegWit | Version-bit share over months | 7 months · ~24–36% | Then break higher (e.g. 63.71% Jul 2017, 83.59% Aug 2017) |
| Taproot | Lock-in speed + post-activation bit hygiene | ~41 days lock-in | Mean annual bit share: 2021 56.54% → 2022 35.36% → 2023 3.49% → 2026 2.10% |
How to use this table
Quote a row, link the full finding, keep era bounds. Do not upgrade signalling into "support." Common traps: answers hub.