{
  "operation": "chunk",
  "chunk": {
    "protocol": "yachtmemory.signalk-catalog/2",
    "vessel_id": "e4b76f55-6bd9-4a2e-ab5a-8c538d9311fd",
    "snapshot_id": "d85d0cea-5775-4d7a-9afa-630f80ec49d3",
    "revision": 3,
    "chunk_index": 0,
    "records": [
      {
        "kind": "observation",
        "path": "test.catalog.depth",
        "source": "synthetic.source"
      },
      {
        "kind": "observation",
        "path": "test.catalog.temperature",
        "source": "synthetic.source"
      },
      {
        "kind": "observation",
        "path": "test.catalog.wind",
        "source": "synthetic.source"
      }
    ],
    "payload_sha256": "f64ba060a4c4aa7e7c089a440c24d3674c1c8c54d81ec1010aa44085997fc0b3"
  }
}