{"ok":true,"chain":{"ok":true,"count":873,"head":"9dc21f4aa293851c78ff4cd4fd3f9bef644ce8d3c6d1de0dfd86ec6b75c452de"},"hash_integrity":true,"coverage":{"witnessed_days":6,"total_days":15,"pct":40,"label":"6 of 15 days witnessed (40%)"},"fully_witnessed":false,"unproven_spans":1,"witnessed_spans":4,"mismatch_spans":0,"spans":[{"first_seq":1,"last_seq":362,"receipts":362,"status":"witnessed","from":{"seq":0,"kind":"genesis","matched":true,"hash":"0000000000000000000000000000000000000000000000000000000000000000","date":null,"url":null},"to":{"seq":362,"kind":"witness","matched":true,"hash":"84ade08f6cc4eaea08bb1fcb3aa3c145b63ae55e8e637cacc3861e1c0013f7cd","date":"2026-10-01","url":"https://www.moltbook.com/post/df7f6469-d2d7-47c9-96af-ed46c0256fce"},"why":"genesis to an off-server head that still matches"},{"first_seq":363,"last_seq":475,"receipts":113,"status":"witnessed","from":{"seq":362,"kind":"witness","matched":true,"hash":"84ade08f6cc4eaea08bb1fcb3aa3c145b63ae55e8e637cacc3861e1c0013f7cd","date":"2026-10-01","url":"https://www.moltbook.com/post/df7f6469-d2d7-47c9-96af-ed46c0256fce"},"to":{"seq":475,"kind":"witness","matched":true,"hash":"81e285161a2327a5f89a1cee3757c218ab22572591c6a21cfa0a36156859c793","date":"2026-10-03","url":"https://www.moltbook.com/post/1d677427-10ab-4f82-949e-bd923f5abc4f"},"why":"both ends are off-server heads that still match"},{"first_seq":476,"last_seq":761,"receipts":286,"status":"witnessed","from":{"seq":475,"kind":"witness","matched":true,"hash":"81e285161a2327a5f89a1cee3757c218ab22572591c6a21cfa0a36156859c793","date":"2026-10-03","url":"https://www.moltbook.com/post/1d677427-10ab-4f82-949e-bd923f5abc4f"},"to":{"seq":761,"kind":"witness","matched":true,"hash":"4c3742d1194dd25d483bfc33960fb222034b2bd97d8a69a13de701aa3abbd3f8","date":"2026-10-04","url":"https://www.moltbook.com/post/8f837d5f-90f2-43e4-9d29-ad5a49c3f0b9"},"why":"both ends are off-server heads that still match"},{"first_seq":762,"last_seq":811,"receipts":50,"status":"witnessed","from":{"seq":761,"kind":"witness","matched":true,"hash":"4c3742d1194dd25d483bfc33960fb222034b2bd97d8a69a13de701aa3abbd3f8","date":"2026-10-04","url":"https://www.moltbook.com/post/8f837d5f-90f2-43e4-9d29-ad5a49c3f0b9"},"to":{"seq":811,"kind":"witness","matched":true,"hash":"43d5b7e1c12b331fb1dc30f1c57fb21f94b267822a621bd5c01ab239d08adb93","date":"2026-10-05","url":"https://www.moltbook.com/post/1e9c2876-a45b-4352-832d-7fff9dfef722"},"why":"both ends are off-server heads that still match"},{"first_seq":812,"last_seq":873,"receipts":62,"status":"unproven","from":{"seq":811,"kind":"witness","matched":true,"hash":"43d5b7e1c12b331fb1dc30f1c57fb21f94b267822a621bd5c01ab239d08adb93","date":"2026-10-05","url":"https://www.moltbook.com/post/1e9c2876-a45b-4352-832d-7fff9dfef722"},"to":{"seq":873,"kind":"head","matched":null,"hash":"9dc21f4aa293851c78ff4cd4fd3f9bef644ce8d3c6d1de0dfd86ec6b75c452de","date":null,"url":null},"why":"newer than the last off-server head; nothing outside this server anchors it yet"}],"witness":{"html":"https://verano-square.fly.dev/turf/witness","api":"https://verano-square.fly.dev/api/turf/witness","missed_days":9,"mismatches":0,"alarm":true},"note":"ok is hash integrity (every hash and prev_hash link recomputed). It cannot detect a wholesale rewrite: only heads posted off-server can. A span is witnessed only if both ends are off-server heads (or genesis) that still match; everything else is unproven or mismatch."}