{
  "_self": {
    "what": "A portable immutability anchor — an opaque packet hash bound to public surfaces. Verify it anywhere; no operator trust.",
    "recipe": {
      "anchor_id": "anchor_id = SHA256(canonical) where canonical is the exact preimage string returned with the anchor (fields joined by U+241F, fixed order)",
      "what_it_proves": "The packet_hash was bound to a drand round + Bitcoin block that could not be known before they existed — so the anchor cannot have been backdated. Posting the anchor to any external ledger/timestamp gives anteriority. Any change to the source data changes packet_hash, changes anchor_id — tamper is proven.",
      "no_data": "Only the hash (opaque commitment) is ever published. The underlying data never leaves the holder.",
      "verify": [
        "recompute anchor_id = SHA256(canonical) and confirm it matches",
        "GET the drand verify URL and confirm round/randomness/signature (BLS, verifiable against the drand group key)",
        "GET the bitcoin verify URL and confirm the block hash at that height",
        "GET the miscsubjects chain verify URL and confirm the head",
        "cross-ledger: any other ledger holding this anchor runs the same steps — no operator trust required"
      ]
    }
  },
  "anchor_id": "3be5071eb3035ca29093c6713646bbe21bdca6cce262fc7f7eb64080c04e61fe",
  "packet_hash": "c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
  "label": "ledger chain head v2, sealed current through 689,866 events",
  "anchored_at": "2026-07-30T00:14:40.070Z",
  "actor": "Fable 5 (Claude Code)",
  "canonical": "anchor.v1␟packet=c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa␟at=2026-07-30T00:14:40.070Z␟drand.round=6331315␟drand.randomness=58bb1e549a6c198d8cb1633b069140dd9bfb8672cb66172c4a45152c976adb18␟btc.height=960173␟btc.hash=000000000000000000009314676e9628f2b97f3b9f40d31c53eaa76cf63b27c9␟ms.head=c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
  "surfaces": {
    "drand": {
      "round": 6331315,
      "randomness": "58bb1e549a6c198d8cb1633b069140dd9bfb8672cb66172c4a45152c976adb18",
      "signature": "a10f93ba70634deebeb83b184f1934a90c6530dc09028d2624dbbdecfb734e104a2877968e795e2609af03b45744a4dd0df49ebe3a2a2b56cc7bcfb2dca95aa2c73f00bf68863e75ceba043af6c3e8c00e14828862792d97965ff846b74cf5ba",
      "verify": "https://api.drand.sh/public/6331315",
      "note": "unpredictable before its cadence time; BLS-signed by the League of Entropy — verifiable forever"
    },
    "bitcoin": {
      "height": 960173,
      "hash": "000000000000000000009314676e9628f2b97f3b9f40d31c53eaa76cf63b27c9",
      "verify": "https://mempool.space/api/block-height/960173",
      "note": "a block hash cannot be known before the block is mined — proves the anchor is no older than this block"
    },
    "miscsubjects_chain": {
      "version": 2,
      "head": "c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
      "event_count": 689866,
      "seq": 74,
      "verify": "https://miscsubjects.com/api/chain/verify?version=2&head=c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa"
    }
  },
  "ledger_event": "60de3d1d-27c3-4bf6-a5d4-2238f431a95e",
  "chain_inclusion": {
    "status": "NOT_YET_PROVEN_INCLUDED",
    "event_ts": "2026-07-29T17:14:40-07:00",
    "event_epoch": 1785370480,
    "checkpoint_seq": 74,
    "checkpoint_head": "c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
    "proof": "https://miscsubjects.com/api/chain/verify?version=2&head=c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
    "law": "V2 starts at genesis and seals in (unixepoch(ts),id) order; an event tuple at or before the latest cutoff is included."
  },
  "chain": "https://miscsubjects.com/api/chain"
}