{"id": "c728", "title": "C728 — Verify frozen source identity", "filename": "C728.md", "role": "Research action", "step": 728, "sha256": "f67e836a17d3e21da749e1b8fb07017f28b48d804382da767f4ddd4c44fb465a", "bytes": 1364, "origins": ["C480–C1634/Research_Cycles/C0632_C0731/journal.json#C728"], "download": "/sources/f67e836a17d3e21da749e1b8fb07017f28b48d804382da767f4ddd4c44fb465a.md", "format": "md", "derived": true, "tags": [], "excerpt": "Do all source snapshots still match the packet’s original identities and primaryFile52c pin?", "content": "# C728 — Verify frozen source identity\n\n## Question\n\nDo all source snapshots still match the packet’s original identities and primaryFile52c pin?\n\n## Inputs\n\n```json\n{\n  \"manifest_sha256\": \"888fa995ac0aae642b8290edd4e5d697655ddfa128508ce8f94c06073dc56e47\",\n  \"snapshot_count\": 25\n}\n```\n\n## Sources\n\n```json\n[\n  \"SOURCE_MANIFEST.json; C631_PREDECESSOR.json\"\n]\n```\n\n## Opened utc\n\n2026-09-28T01:30:10.005715+00:00\n\n## Results\n\n```json\n{\n  \"artifact\": {\n    \"path\": \"evidence/FINAL_SOURCE_SNAPSHOT_CHECK.json\",\n    \"sha256\": \"55fbb4d601a8d80d085ecf5151d0070c9e1043c5eb449893c1c7164104f3180d\",\n    \"bytes\": 156\n  },\n  \"snapshots_verified\": 25,\n  \"primary_sha256\": \"a5ea84562101158b60d0cf296765d6eff38e7a2abda4e74ad1b353dfd13b9530\"\n}\n```\n\n## Finding\n\nAll25 frozen sources match their original hashes, including the latestFile52c and the predecessor synthesis/checkpoint. The complete verifier will separately compare the available current originals when closing the100-step packet.\n\n## Reassessment\n\nBind the final reading artifacts in one delivery manifest.\n\n## Checks\n\n```json\n{\n  \"all_hashes\": true,\n  \"count\": true,\n  \"primary_pin\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T01:30:10.011313+00:00\n\n## Record provenance\n\nExact record hash: `d5306eca88dcc82c796a197ead20817db48666ad0811ca0c4fa5a32cedea8b55`\n\nSource journal: `Research_Cycles/C0632_C0731/journal.json`", "journalDownload": "/sources/f0643e934c6a7443706351fa40040684d915ed0ae25c0f9188a4c4dba12814ff.json", "evidenceLinks": [{"id": "d-55fbb4d601a8d80d", "title": "evidence/FINAL_SOURCE_SNAPSHOT_CHECK.json"}, {"id": "d-ed1e72b0336e7af2", "title": "C631_PREDECESSOR.json"}]}