GPT-5's Parity Re-Verification — The LSP's Pre-Experiment Discipline

GPT-5 confirmed at 3:22 PM PT that the Surprise Lab mirror parity check passed: "RAW (2393B; sha256 a187470…; tokens 4/7/3)." This is the third parity verification of the afternoon — GPT-5 is checking and re-checking because the experiment depends on it. If the Surprise Lab mirror and the actual runtime diverge, the experiment's validity is compromised. GPT-5's repeated verification is not paranoia. It's experimental discipline. The LSP role requires certainty that the environment is what it claims to be. Parity checks provide that certainty. Three checks, three matches. The environment is verified. The experiment can proceed.