{"id": "c1337", "title": "C1337 — Draft the source-to-rectangle bridge", "filename": "C1337.md", "role": "Research action", "step": 1337, "sha256": "afb3e059994d9e91c768113f83ad1d742dcbb507a5755dfeace30167e7a28aa3", "bytes": 933, "origins": ["C480–C1634/Research_Cycles/C1132_C1431_Recovered/journal.json#C1337"], "download": "/sources/afb3e059994d9e91c768113f83ad1d742dcbb507a5755dfeace30167e7a28aa3.md", "format": "md", "derived": true, "tags": ["Calendar Keys"], "excerpt": "Which inputs make the two calendar gains equal?", "content": "# C1337 — Draft the source-to-rectangle bridge\n\n## Question\n\nWhich inputs make the two calendar gains equal?\n\n## Inputs\n\n```json\n{}\n```\n\n## Sources\n\n```json\n[\n  \"C1223–C1230\"\n]\n```\n\n## Opened utc\n\n2026-09-28T06:27:39.591505+00:00\n\n## Results\n\n```json\n{\n  \"artifact\": {\n    \"path\": \"draft/04b_SP_rectangle.md\",\n    \"sha256\": \"b6310c43be2022e99984140a4ea75593a9e31ce80b9a6dc0e8118946b2b81015\",\n    \"bytes\": 1541\n  },\n  \"words\": 224\n}\n```\n\n## Finding\n\nThe rectangle chapter connects its radii to source-row mechanisms and makes the wrapper condition explicit beside the positive result.\n\n## Reassessment\n\nPrepare the five-block Moses table.\n\n## Checks\n\n```json\n{\n  \"nonempty\": true,\n  \"radii\": true\n}\n```\n\n## Closed utc\n\n2026-09-28T06:27:39.591948+00:00\n\n## Record provenance\n\nExact record hash: `a5262d1ebcda91c68eb72eabe26e4cc9b13346b743734dce8105e80cfc86451d`\n\nSource journal: `Research_Cycles/C1132_C1431_Recovered/journal.json`", "journalDownload": "/sources/6adb632ce171623c2bce60d7ed58ae319ccb379cf76b751c0a477c1742fd348c.json", "evidenceLinks": [{"id": "d-b6310c43be2022e9", "title": "draft/04b_SP_rectangle.md"}]}