{
  "_self": {
    "what": "The current ledger chain head for this version. A separately published copy of this exact string is the external anchor.",
    "anchor_body": "c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
    "recipe": "head_0 = \"genesis\"; head_i = SHA256( head_(i-1) ␟ leaf_digest_i ); head = head_n"
  },
  "version": 2,
  "head": "c77d33b5759a4774afac67086b01d8f179294c311e2224e6a8a4d7c52173cbfa",
  "checkpoint_hash": "869ddcfcf595cb39c74e5d4cd3597373bb916a11be6a2fc04b52e24f6b7ff5cb",
  "seq": 74,
  "event_count": 689866,
  "cutoff_ts": "2026-07-29T17:14:27-07:00",
  "sealed_at": "2026-07-30T00:14:28.109Z",
  "anchor_instructions": "Email this head string (or the full JSON) from an account whose domain publishes a DKIM key. Archive the selector public key at send time. Anchor through >=2 independent domains. Then this head is externally immutable: rewriting the ledger would require forging every anchoring provider's signature."
}