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Scoring scoped the contrast packet to the previous round's candidate set while minting probes for the new one, so every later read re-prefixed the stored hash and the persisted focus schema could never match. Mint one prefix per set and compare splits by probe identity. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LVapmh2oGNyr6ECHKjPJY8