{"id": "c553", "title": "C553 — Recover one clutch from nested envelopes", "filename": "C553.md", "role": "Research action", "step": 553, "sha256": "5c91f685e2055c6b851a6e8c02df5ca9b4212bace2c4c739e9bf68b9b88c11cb", "bytes": 1141, "origins": ["C480–C1634/Research_Cycles/C0532_C0631/journal.json#C553"], "download": "/sources/5c91f685e2055c6b851a6e8c02df5ca9b4212bace2c4c739e9bf68b9b88c11cb.md", "format": "md", "derived": true, "tags": ["Covenant", "Mirror / 529"], "excerpt": "Are487/473,444/430 and350/336 independent compression measurements?", "content": "# C553 — Recover one clutch from nested envelopes\n\n## Question\n\nAre487/473,444/430 and350/336 independent compression measurements?\n\n## Inputs\n\n```json\n{\n  \"envelopes\": [\n    [\n      487,\n      473\n    ],\n    [\n      444,\n      430\n    ],\n    [\n      350,\n      336\n    ]\n  ]\n}\n```\n\n## Sources\n\n```json\n[\n  \"File61 §§6.3–6.6\"\n]\n```\n\n## Opened utc\n\n2026-09-28T00:12:44.031131+00:00\n\n## Results\n\n```json\n{\n  \"compressions\": [\n    14,\n    14,\n    14\n  ],\n  \"removed_prefixes\": [\n    [\n      43,\n      43\n    ],\n    [\n      94,\n      94\n    ]\n  ]\n}\n```\n\n## Finding\n\nAll three envelopes express the same14-year compression after equal prefixes43 and94 are removed. The maximum nonoverlap envelope is a source model, not a literal succession of biographies.\n\n## Reassessment\n\nDistinguish translating the whole root from moving a single boundary.\n\n## Checks\n\n```json\n{\n  \"same_compression\": true,\n  \"same_prefix\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T00:12:44.031368+00:00\n\n## Record provenance\n\nExact record hash: `19e67133ae7ac2724f622d1adafcc76ea3be373685636294db83114a1ae11529`\n\nSource journal: `Research_Cycles/C0532_C0631/journal.json`", "journalDownload": "/sources/7a2e1117efc741218b68e2db8bb20eadd33cab34e00384e9b903708031da1d2d.json", "evidenceLinks": [{"id": "d-d580afd48d6e12d6", "title": "File 61"}]}