{
  "schemaVersion": 1,
  "contract": "buildchain-v4-delivery-warrant-trace-fixture/v1",
  "runner": "buildchain-v4-delivery-warrant-fixture-runner/v1",
  "trace": {
    "id": "replay-stale-fence-readback",
    "kind": "replay",
    "initialState": {
      "schema": "buildchain-v4-delivery-warrant-state/v1",
      "generation": 7,
      "fencingCounter": 3,
      "activeWarrant": {
        "candidateId": "candidate-120",
        "fencingToken": "fence-3",
        "generation": 7
      },
      "candidates": [
        {
          "candidateId": "candidate-120",
          "pullRequestNumber": 120,
          "status": "selected"
        }
      ]
    },
    "initialStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
    "steps": [
      {
        "sequence": 0,
        "id": "reject-stale-fence",
        "operation": "heartbeat",
        "event": {
          "schema": "buildchain-v4-event-envelope/v1",
          "eventId": "sha256:3333333333333333333333333333333333333333333333333333333333333333",
          "eventType": "heartbeat-requested",
          "occurredAt": "2026-08-07T01:02:02.000Z",
          "subjectRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
          "payload": {
            "candidateId": "candidate-120",
            "fencingToken": "fence-2"
          }
        },
        "decision": {
          "action": null,
          "fault": {
            "schema": "buildchain-v4-contract-fault/v1",
            "code": "stale-fencing-token",
            "class": "concurrency",
            "path": "$/warrant/fencingToken",
            "message": "retained replay used an obsolete fence",
            "retry": "reselect"
          }
        },
        "priorStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
        "successorState": {
          "schema": "buildchain-v4-delivery-warrant-state/v1",
          "generation": 7,
          "fencingCounter": 3,
          "activeWarrant": {
            "candidateId": "candidate-120",
            "fencingToken": "fence-3",
            "generation": 7
          },
          "candidates": [
            {
              "candidateId": "candidate-120",
              "pullRequestNumber": 120,
              "status": "selected"
            }
          ]
        },
        "successorRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
        "effects": [],
        "observations": [
          {
            "sequence": 0,
            "type": "fence-check",
            "payload": {
              "expected": "fence-3",
              "observed": "fence-2",
              "status": "rejected"
            }
          }
        ],
        "receipt": {
          "schema": "buildchain-v4-receipt-envelope/v1",
          "receiptType": "heartbeat-rejected",
          "recordedAt": "2026-08-07T01:02:02.000Z",
          "eventRoot": "sha256:81e5b6575ea1fdb10c6c43f56c446522299853358ee79bc5e146795f1d6daa80",
          "priorStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
          "nextStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
          "outcome": "rejected",
          "fault": {
            "schema": "buildchain-v4-contract-fault/v1",
            "code": "stale-fencing-token",
            "class": "concurrency",
            "path": "$/warrant/fencingToken",
            "message": "retained replay used an obsolete fence",
            "retry": "reselect"
          }
        },
        "receiptRoot": "sha256:050b24ff2de6f4335fa7c5fd87524cd0fa6e1449c5017c2a91fd1d98c092c684"
      },
      {
        "sequence": 1,
        "id": "readback",
        "operation": "response-loss-readback",
        "event": {
          "schema": "buildchain-v4-event-envelope/v1",
          "eventId": "sha256:4444444444444444444444444444444444444444444444444444444444444444",
          "eventType": "state-readback",
          "occurredAt": "2026-08-07T01:02:03.000Z",
          "subjectRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
          "payload": {
            "observedStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838"
          }
        },
        "decision": { "action": "committed-readback", "fault": null },
        "priorStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
        "successorState": {
          "schema": "buildchain-v4-delivery-warrant-state/v1",
          "generation": 7,
          "fencingCounter": 3,
          "activeWarrant": {
            "candidateId": "candidate-120",
            "fencingToken": "fence-3",
            "generation": 7
          },
          "candidates": [
            {
              "candidateId": "candidate-120",
              "pullRequestNumber": 120,
              "status": "selected"
            }
          ]
        },
        "successorRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
        "effects": [],
        "observations": [
          {
            "sequence": 0,
            "type": "state-readback",
            "payload": {
              "readbackRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
              "status": "matched"
            }
          }
        ],
        "receipt": {
          "schema": "buildchain-v4-receipt-envelope/v1",
          "receiptType": "state-readback",
          "recordedAt": "2026-08-07T01:02:03.000Z",
          "eventRoot": "sha256:8abfbfd5e2c74920418970ea4078dacfe44a21d545994160faccddd7ca4718d5",
          "priorStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
          "nextStateRoot": "sha256:95c5c4d52c39b8dcc2169566b152197e1788a2bd8342bdb0c08c2e803bc3d838",
          "outcome": "noop",
          "fault": null
        },
        "receiptRoot": "sha256:bcb2e02324b19b39e8af8dc3e85cb20c4558ad9607afeb1b9034bfa2f3a17161"
      }
    ]
  },
  "expectedProjectionRoot": "sha256:f8948514f60c289d475279be927153a7a3d92813d5c8704a1f08ad54f6b01fcd"
}