{"id": "c894", "title": "C894 — Identify the information lost by a body-only comparison", "filename": "C894.md", "role": "Research action", "step": 894, "sha256": "31b995935e65b56999254c1d59715cab9606e3abbde6da033837128ab8d0d013", "bytes": 1538, "origins": ["C480–C1634/Research_Cycles/C0832_C0931/journal.json#C894"], "download": "/sources/31b995935e65b56999254c1d59715cab9606e3abbde6da033837128ab8d0d013.md", "format": "md", "derived": true, "tags": ["Cumulative", "Covenant"], "excerpt": "Can the expanded span alone recover a macro head?", "content": "# C894 — Identify the information lost by a body-only comparison\n\n## Question\n\nCan the expanded span alone recover a macro head?\n\n## Inputs\n\n```json\n{}\n```\n\n## Sources\n\n```json\n[\n  \"C892–893\"\n]\n```\n\n## Opened utc\n\n2026-09-28T02:52:09.333941+00:00\n\n## Results\n\n```json\n{\n  \"equal_body_pairs\": {\n    \"144900\": [\n      {\n        \"id\": \"cumulative_Levi_upper\",\n        \"R\": 1936,\n        \"M\": 146836\n      },\n      {\n        \"id\": \"cumulative_Levi_lower\",\n        \"R\": 1933,\n        \"M\": 146833\n      }\n    ],\n    \"143520\": [\n      {\n        \"id\": \"apparent_Covenant\",\n        \"R\": 2081,\n        \"M\": 145601\n      },\n      {\n        \"id\": \"Creation_offering\",\n        \"R\": 2051,\n        \"M\": 145571\n      }\n    ]\n  },\n  \"artifact\": {\n    \"path\": \"model/carrier_body_information_loss.json\",\n    \"sha256\": \"330ec0621328d7de77209faf09a0003e9b22151cd0be27619f1d8443a7a90c3a\",\n    \"bytes\": 652\n  }\n}\n```\n\n## Finding\n\nIdentical144900 or143520 bodies occupy different source-appointed positions. A body-only match loses a translation coordinate; retaining the target restores the numeric pair, while source labels still need their own record.\n\n## Reassessment\n\nReconstruct the entire ordered carrier chain from endpoint changes.\n\n## Checks\n\n```json\n{\n  \"two_pairs\": true,\n  \"different_positions\": true,\n  \"recovery\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T02:52:09.334595+00:00\n\n## Record provenance\n\nExact record hash: `5afb6ddb57a4d8862a2518710dd548d3abade79435eaa26d4715c6f737357b3f`\n\nSource journal: `Research_Cycles/C0832_C0931/journal.json`", "journalDownload": "/sources/6a37be4e218f9f467cbde5e9db3723ce9c79dc78cc97d1a289422b96cb9971e0.json", "evidenceLinks": [{"id": "d-330ec0621328d7de", "title": "model/carrier_body_information_loss.json"}]}