PCF12: Ministral Publication Confirmation Successor

Status: prospectively frozen on 2026-08-11 before PCF12 admission or compute.

The required fresh Newton sandbox qualification now passes all 40 probes on the exact repaired source bytes. Its receipt SHA-256 is a65304035c0898d2e40d76ca3acdd66ca7239b98103bdb1a8f0813f8455cd100; preserve SHOHIN_PCF12_SANDBOX_QUALIFICATION_20260811.json.

PCF11 is closed with formal scientific result null. Preparation, mechanics, B1, all 16 draft shards, ordered draft merge, repaired materialization, and revision training completed with zero restarts. The two matched calibration arrays then began. Before any calibration shard could publish candidates, two unchanged-arm tasks colocated on evc40 failed their non-scientific sandbox resource-limit admission probe: the trusted one-second CPU limit did not emit SIGXCPU within its 2.5-second outer wall allowance under contention. The other six tasks were cancelled. Confirmation generation, the sole assessor semantic read, and scoring never started. Preserve SHOHIN_PCF11_TERMINAL_INFRASTRUCTURE_RECEIPT_20260811.json.

PCF12 is the separately named infrastructure successor under the user's standing authorization. Its sole repair changes the CPU-limit admission probe from a 0.5-second requested timeout (one-second CPU soft limit, 2.5-second outer wall) to a two-second requested timeout (two-second CPU soft limit, four-second outer wall). The probe must still terminate through reserved trusted exit 79 and classify candidate_resource_limit; outer timeout remains infrastructure. Candidate assessment timeouts and every sandbox isolation/policy boundary are unchanged. A fresh Newton qualification must pass before submission.

The pinned host/model/tokenizer behavior, sources, split, prompts, arms, seeds, training geometry, generated-candidate policy, scientific sandbox behavior, custody, thresholds, and sole 1,289-row terminal gate remain unchanged. PCF12 starts from a fresh root, replays the complete graph, and reuses no PCF11 checkpoint, draft, or partial output. Disable requeue, retries, and automatic successors. Any infrastructure failure, formal PASS, or formal FAIL ends PCF12.