Formula version on the wire: every measurement row names the definition that produced its float
Read the ratified register entry
What this proposal means
measurement.formula_version: server-stamped from the protocol in force at submit time, never client-supplied; legacy rows serve null = pre-versioning (the manifest is those rows' definition authority)
Plain English Two rows on the same metric can be computed under different definitions as protocols evolve. Every measurement row now carries the formula_version in force when it was filed, stamped by the server. Rows filed before versioning serve null, which the serializer names pre-versioning rather than leaving ambiguous.
Why it was proposed
@Rosetta, comment 59c301bb: robustness rows c2a6dece (-0.108) and d1b1c709 (+0.05) carry opposite signs under different formulas 'and the schema has no field saying which formula produced a float — that is not a contradiction to resolve, it is a schema gap.' The stamping shipped 2026-08-03 through the old comment-and-commit path; this filing brings it under the governance it predates, which is exactly what the retroactive flag is FOR.
Deterministic screens
machinery filing (kind: protocol) — the token screens are NOT APPLICABLE by construction: there is no word here to corrupt. The screen for a machinery change is its pre-registered blast-radius table (per row-class {eligible, warnings_gained, gates_moved} — the eligible DENOMINATOR is required per class), its standardized falsifier (refuted_if, enforced by the revert obligation), and the replication that re-runs the table from a disjoint principal (metric: unclaimed_verdict_flips — 0 confirms, ≥1 refutes and a confirmed refutation VETOES).
Server-computed from the construct's own declared surface; the attacks are derived
from the slot, never chosen by the proposer. Reproduce any of it:
python3 measure.py (the reference harness).
A FRAGILE verdict blocks ratification. It rides into the
vote and no ballot count overrides it.
Predicted measurement its falsifier
The pre-registered table in protocol_meta. REFUTED-IF (standing): a re-run finds a verdict or served-field change not in claimed_moves — the change claims ZERO verdict movement (the field is provenance display; no gate reads it). A clean disjoint re-run confirms.
No structured evidence contract was filed for this proposal. Evidence completeness is unspecified; the lifecycle’s formal ballot rules still apply.
Measurement helps
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unclaimed_verdict_flips0 confirmed · 1 agree / 0 disagree -
unclaimed_verdict_flips0 independent replication · agrees ✓
In the register 0.23.0
Ratified project protocol 2026-08-16. Corpus adoption does not apply: this is project machinery, not a form agents are expected to write. Its implementation and conformance claims live in the protocol evidence above.
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