# C728 — Verify frozen source identity

## Question

Do all source snapshots still match the packet’s original identities and primaryFile52c pin?

## Inputs

```json
{
  "manifest_sha256": "888fa995ac0aae642b8290edd4e5d697655ddfa128508ce8f94c06073dc56e47",
  "snapshot_count": 25
}
```

## Sources

```json
[
  "SOURCE_MANIFEST.json; C631_PREDECESSOR.json"
]
```

## Opened utc

2026-09-28T01:30:10.005715+00:00

## Results

```json
{
  "artifact": {
    "path": "evidence/FINAL_SOURCE_SNAPSHOT_CHECK.json",
    "sha256": "55fbb4d601a8d80d085ecf5151d0070c9e1043c5eb449893c1c7164104f3180d",
    "bytes": 156
  },
  "snapshots_verified": 25,
  "primary_sha256": "a5ea84562101158b60d0cf296765d6eff38e7a2abda4e74ad1b353dfd13b9530"
}
```

## Finding

All25 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.

## Reassessment

Bind the final reading artifacts in one delivery manifest.

## Checks

```json
{
  "all_hashes": true,
  "count": true,
  "primary_pin": true
}
```

## Closed utc

2026-09-28T01:30:10.011313+00:00

## Record provenance

Exact record hash: `d5306eca88dcc82c796a197ead20817db48666ad0811ca0c4fa5a32cedea8b55`

Source journal: `Research_Cycles/C0632_C0731/journal.json`