{
 "type": "verifiable-workflow-receipt",
 "version": "0.3",
 "workflow_id": "11111111-2222-4333-8444-555555555555",
 "receipt_id": "66666666-7777-4888-8999-aaaaaaaaaaaa",
 "session_id": "sess-neg-corpus",
 "goal": "negative-corpus workflow base",
 "status": "completed",
 "steps": [
  {
   "seq": 1,
   "tool": "tool_1",
   "receipt_id": "e80168eb-a6a1-4ec9-8478-ac108f9397ff",
   "receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000",
   "started_at": "2026-09-27T09:00:00Z",
   "ended_at": "2026-09-27T09:00:30Z",
   "status": "completed"
  },
  {
   "seq": 2,
   "tool": "tool_2",
   "receipt_id": "514fe841-bbdd-4804-9ef4-6828842d8763",
   "receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000",
   "started_at": "2026-09-27T09:01:00Z",
   "ended_at": "2026-09-27T09:01:30Z",
   "status": "completed"
  },
  {
   "seq": 3,
   "tool": "tool_3",
   "receipt_id": "a090bdad-f2cf-48c9-bc89-e9e17700fb15",
   "receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000",
   "started_at": "2026-09-27T09:02:00Z",
   "ended_at": "2026-09-27T09:02:30Z",
   "status": "completed"
  },
  {
   "seq": 4,
   "tool": "tool_4",
   "receipt_id": "bf88a036-416b-456a-8e82-8c0991811d68",
   "receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000",
   "started_at": "2026-09-27T09:03:00Z",
   "ended_at": "2026-09-27T09:03:30Z",
   "status": "completed"
  },
  {
   "seq": 5,
   "tool": "tool_4",
   "receipt_id": "bf88a036-416b-456a-8e82-8c0991811d68",
   "receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000",
   "started_at": "2026-09-27T09:03:00Z",
   "ended_at": "2026-09-27T09:03:30Z",
   "status": "completed"
  }
 ],
 "merkle_root": "652b3def888436dd785c7e94c4736db07283fc534669f05f83569901c4a3aada",
 "output_hash": "0000000000000000000000000000000000000000000000000000000000000000",
 "verify_url": "https://example.com/verify"
}