{"id": "c886", "title": "C886 — Derive the held-anchor order displacement", "filename": "C886.md", "role": "Research action", "step": 886, "sha256": "1068f5ca311c65ffdba4d046f265bf07206024bcf451b2046327c4a46e3416f5", "bytes": 1205, "origins": ["C480–C1634/Research_Cycles/C0832_C0931/journal.json#C886"], "download": "/sources/1068f5ca311c65ffdba4d046f265bf07206024bcf451b2046327c4a46e3416f5.md", "format": "md", "derived": true, "tags": ["Mirror / 529"], "excerpt": "How does anchor choice affect composition on an entire path?", "content": "# C886 — Derive the held-anchor order displacement\n\n## Question\n\nHow does anchor choice affect composition on an entire path?\n\n## Inputs\n\n```json\n{\n  \"k\": \"25/23\",\n  \"l\": \"70/69\",\n  \"a\": 14006,\n  \"b\": 4836\n}\n```\n\n## Sources\n\n```json\n[\n  \"File46 named anchors\",\n  \"formal diagnostic only\"\n]\n```\n\n## Opened utc\n\n2026-09-28T02:49:44.870529+00:00\n\n## Results\n\n```json\n{\n  \"constant_displacement\": \"18340/1587\",\n  \"identity\": {\n    \"path\": \"model/anchor_order_identity.json\",\n    \"sha256\": \"35567eeb0a0f76c5555bd5cfa2aef64f2b742fde4914394a2cc772025e8c0713\",\n    \"bytes\": 349\n  }\n}\n```\n\n## Finding\n\nDifferent held anchors produce a constant whole-path displacement even though the scalar products agree. For the source anchors14006 and4836 with E/P, the formal composition difference is18340/1587 at every point.\n\n## Reassessment\n\nTest that constant displacement over the complete frozen head field.\n\n## Checks\n\n```json\n{\n  \"identity\": true,\n  \"value\": true,\n  \"same_anchor_zero\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T02:49:44.871073+00:00\n\n## Record provenance\n\nExact record hash: `a6d4bb79ae328fefeee32640a09ca0b8ec3a21270f7a4e5f59c872d8cec2575f`\n\nSource journal: `Research_Cycles/C0832_C0931/journal.json`", "journalDownload": "/sources/6a37be4e218f9f467cbde5e9db3723ce9c79dc78cc97d1a289422b96cb9971e0.json", "evidenceLinks": [{"id": "d-35567eeb0a0f76c5", "title": "model/anchor_order_identity.json"}, {"id": "d-18e8c54ff1663fb1", "title": "File 46"}]}