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docs/retroarch/phase-1.0aq-offline-worker-result-record.md

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+# Phase 1.0AQ: offline fixed worker result record
+
+Status: `FIXED_RESULT_AND_GENERATION_IDENTITY_COMPLETE_TRANSPORT_BLOCKED`
+
+Date: 2026-07-29
+
+The bytes-only protocol is one exact 128-byte little-endian record. It binds an
+attempt ID, worker nonce, worker and child PID, monotonic generation, requested
+and copied byte counts, status and credential-restoration failure bits. The
+first 96 bytes are protected by a trailing SHA-256 digest. Reserved and flag
+fields must be zero.
+
+PID alone is explicitly insufficient. A result is accepted only when every
+identity field equals a precommit. Success additionally requires the exact
+requested byte count and zero restoration failures. Failure records preserve
+partial progress. Tests mutate every byte position and also reject rehashed
+records with semantically invalid fields.
+
+SHA-256 provides integrity here, not authentication; identity comes from the
+precommitted attempt and nonce. The model has no random source, pipe, socket,
+process, clock or target capability. Exclusive writer ownership, partial reads,
+EOF/deadline behavior and PS5 pipe atomicity remain unproven, so no transport or
+target implementation is allowed.