GET /api/chain/:slug/block?zeqond=N

Return the audit-log row at the given Zeqond. optionalAuth.

Query

Param	Type	Required	Notes
zeqond	integer	yes	Non-negative; matches audit_log.zeqondNumber.

Response — 200

{
  "ok": true,
  "block": {
    "id": "1234",
    "originId": "zeq-dev:my-iot-fleet",
    "zeqondNumber": "2287439213",
    "stateHash": "0123…",
    "prevHash": "fedc…",
    "transitionType": "event",
    "transitionId": "9b1c-…uuid",
    "proofDigest": null,
    "zspEnvelope": null,
    "createdAt": "2026-04-28T01:49:13.213Z"
  }
}

id and zeqondNumber are stringified for JSON safety (BigInt).

Errors

Status	error	Cause
400	invalid_request	zeqond not a non-negative integer
404	no_block_at_zeqond	no row at that Zeqond
403	forbidden	private machine, no auth

Curl

curl -sS "https://zeqapi.com/api/chain/my-iot-fleet/block?zeqond=2287439213"