P13-S27 RATIFIED after nineteen review rounds; pins frozen, dispatched

Ratified on the repository owner's authority. Nineteen adversarial review
rounds, 65 findings, 47 blocking, and a clean independent round at the end
-- the criterion named at round 11.

The pins are now frozen: executed, not edited. A defect found during
execution is reported, not patched in place.

Round 1's ratification was withdrawn and the distinction matters. It was
claimed after a single round, and round 2 found four more blocking defects
against the supposedly frozen text, two of them introduced by round 1's own
amendments. This one rests on a different footing.

Recorded at the top of the status block so it cannot be missed, what
ratification does not settle: M7's authority/base leg is unverifiable until
this rung is implemented, since BundleCapabilities and
CURRENT_REDUCTION_ALGORITHM_VERSION are its own deliverables; and every
gate, test and mutation is specified while none has been run. Nineteen
rounds went into the claim that they can be run and that their results would
be evidential. Execution is what tests that claim.

Execution is authorised under §6 with its boundaries unchanged: stage only
§2's files by explicit path, never git add -A, re-check HEAD before staging,
and never reset/restore/checkout/stash. The work is left STAGED, not
committed, and the execution report is subject to independent review before
completion is accepted -- covering in particular M7's three observations and
its control. The document's quality came from the independent rounds; the
report gets the same treatment.

The round-17 probe exception is marked superseded rather than deleted. Its
result falsified round 10 and is cited throughout M7, and its standing is
unchanged: evidence for M7's prerequisite, not a demonstration of
laundering, because it carried no base.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ps1szk2mSfgp4Cz21eVH9x

spec/CONTRACT_P13S27_REDUCTION_AUTHORITY.md

@@ -1,23 +1,44 @@
 # Contract — P13-S27: the reduction version gets an outside witness
 
-**Status:** **NOT RATIFIED. NOT DISPATCHABLE.** **Awaiting the next review round;
-the pins remain open and no execution work may begin.** Which rounds have closed,
-what each found, and the running tally are **the history table below** — this line
-does not restate them, having gone stale in two consecutive rounds by doing so.
+**Status:** **RATIFIED 2026-08-08, on the authority of the repository owner,
+after nineteen adversarial review rounds — the last of which returned zero
+findings.** **DISPATCHED for execution.** Which rounds closed, what each found,
+and the running tally are **the history table below**; this line does not restate
+them, having gone stale in two consecutive rounds by doing so.
 
-**Round 1's ratification is WITHDRAWN.** It was claimed on 2026-08-07 after a
-single round; round 2 then found four more blocking defects against the
-supposedly frozen text, two of them introduced by round 1's own amendments. A
-ratification that a subsequent round falsifies that quickly was not a
-ratification, and leaving the claim standing would make the status field mean
-nothing.
+**THE PINS ARE NOW FROZEN. They may be executed, not edited.** A defect found
+during execution is **reported, not patched in place** — if it needs a pin
+change, that is its own amendment with its own review round.
 
-**The pins are therefore NOT frozen.** They are open to **the current round's**
-findings. Freezing follows ratification; it does not precede it, and it does not
-survive a withdrawal.
+**Round 1's ratification was WITHDRAWN**, and the distinction matters. It was
+claimed on 2026-08-07 after a single round; round 2 then found four more blocking
+defects against the supposedly frozen text, two introduced by round 1's own
+amendments. **A ratification that a subsequent round falsifies that quickly was
+not a ratification.** This one rests on a different footing: **19 rounds, 65
+findings, 47 blocking, and a clean independent round at the end.**
+
+**What ratification does NOT settle, stated at the top so it is not missed:**
+
+- **M7's authority/base leg is unverifiable until this rung is implemented** —
+  `BundleCapabilities` and `CURRENT_REDUCTION_ALGORITHM_VERSION` are its own
+  deliverables. It is an **execution requirement**.
+- **Every gate, test and mutation is specified and none has been run.** Nineteen
+  rounds went into the claim that they *can* be run and that their results *would*
+  be evidential. **Execution is what tests that claim.**
+- **The execution report is subject to independent review before completion is
+  accepted** — required by the owner at dispatch, and specifically covering
+  **M7's three observations and its control**. The document's quality came from
+  the independent rounds; the report gets the same treatment.
 
 ### One narrow, explicit exception to "no execution work" — granted 2026-08-08
 
+> **SUPERSEDED BY RATIFICATION.** This exception was granted while execution was
+> prohibited outright; full execution is now authorised under §6. It is retained
+> as the record of what the scratch probe was permitted to do and what it
+> produced — **its result falsified round 10 and is cited throughout M7** — not as
+> a live constraint. **The probe's standing is unchanged: evidence for M7's
+> prerequisite, and not a demonstration of laundering, because it carried no base.**
+
 **Granted before use, because the prohibition below is otherwise absolute.**
 Authorised: **a bounded mechanical probe of M7's experiment**, on a **disposable
 branch or worktree**, for the sole purpose of producing evidence for the next
@@ -2347,10 +2368,15 @@ to 1 belongs to S16.
 
 **The executing agent MUST NOT commit.** Leave the work staged.
 
-**No execution work may begin at all** until this contract is ratified — **with the
-single exception granted in the status block above**, which authorises a
-base-free, discard-only mechanical probe of M7's round-trip machinery on a
-disposable branch, and nothing else.
+**Execution is AUTHORISED as of ratification, 2026-08-08.** *(This read "no
+execution work may begin at all until this contract is ratified"; ratification has
+happened.)* The boundaries above are unchanged and remain binding — **stage only
+§2's files by explicit path, never `git add -A`, re-check `HEAD` before staging
+and before committing, and never `git reset`/`restore`/`checkout`/`stash`.**
+
+**Leave the work STAGED. Do not commit.** The execution report is then subject to
+**independent review before completion is accepted**, covering in particular
+**M7's three observations and its control**.
 
 ---