{
  "format_version": "0.1",
  "release": {
    "datestamp": "20991231",
    "created": "2099-12-31T00:00:00Z",
    "doi": null,
    "concept_doi": null,
    "source_versions": { "gesla": "4.1", "kartverket": "20991231" }
  },
  "conventions": [
    {
      "convention_id": "otc-greenwich-schureman-v1",
      "phase_reference": "greenwich_utc",
      "v0_model": "schureman_tcd",
      "nodal_handling": "f_u_at_prediction",
      "constituent_table_version": "example",
      "canary": { "status": "not_applicable" }
    },
    {
      "convention_id": "kartverket-utc1-v1",
      "phase_reference": "local",
      "utc_offset_hours": 1,
      "v0_model": "schureman_tcd",
      "nodal_handling": "f_u_at_prediction",
      "constituent_table_version": "example",
      "canary": { "status": "pass", "gauges": 3 }
    }
  ],
  "licences": [
    {
      "licence_id": "gesla-derived",
      "spdx": "CC-BY-4.0",
      "provider": "Example provider via GESLA",
      "attribution": "Example attribution text."
    },
    {
      "licence_id": "kartverket",
      "spdx": "CC-BY-4.0",
      "provider": "Kartverket",
      "attribution": "Example attribution text."
    }
  ],
  "stations": [
    {
      "station_id": "OTC-EXAMPLE-0001",
      "status": "active",
      "name": "Example Harbour (illustrative values, not data)",
      "country": "NOR",
      "lat": 60.0,
      "lon": 5.0,
      "type": "reference",
      "aliases": { "kartverket": "EXA", "gesla": ["example-file-id"] },
      "recommended_set_id": "OTC-EXAMPLE-0001/gesla-fit",
      "constant_sets": [
        {
          "set_id": "OTC-EXAMPLE-0001/gesla-fit",
          "source": "gesla-fit",
          "source_record_id": "example-file-id",
          "source_version": "4.1",
          "record_span": { "start": "2007-01-01T00:00:00Z", "end": "2026-01-01T00:00:00Z", "good_samples": 160000 },
          "datum": { "msl_offset_m": 1.0 },
          "convention_id": "otc-greenwich-schureman-v1",
          "licence_id": "gesla-derived",
          "qc_status": "accepted",
          "qc_flags": [{ "flag": "time_base", "verdict": "utc_instant" }],
          "constituents": [
            { "name": "M2", "speed_deg_per_hour": 28.9841042, "amplitude_m": 0.5, "phase_deg": 100.0, "amp_uncertainty_m": 0.001, "phase_uncertainty_deg": 0.1, "kept_reason": "snr" },
            { "name": "K1", "speed_deg_per_hour": 15.0410686, "amplitude_m": 0.05, "phase_deg": 200.0 }
          ],
          "dropped_constituents": [{ "name": "SA", "dropped_reason": "long_period_rule" }],
          "provenance": {
            "build_commit": "0000000",
            "time_base": { "verdict": "utc_instant", "correction": "none" },
            "selection_reason": "only eligible record",
            "decision": { "tier": "rule", "outcome": "accept" }
          }
        },
        {
          "set_id": "OTC-EXAMPLE-0001/kartverket",
          "source": "kartverket",
          "source_record_id": "EXA",
          "source_version": "20991231",
          "convention_id": "kartverket-utc1-v1",
          "licence_id": "kartverket",
          "qc_status": "accepted",
          "constituents": [
            { "name": "M2", "speed_deg_per_hour": 28.9841042, "amplitude_m": 0.5, "phase_deg": 100.2 }
          ],
          "provenance": { "adapter_version": "example" }
        }
      ],
      "validation": [
        { "set_id": "OTC-EXAMPLE-0001/gesla-fit", "reference_source": "example", "window": "W1", "time_mae_min": 1.0, "height_mae_m": 0.01, "previous_release": null }
      ]
    },
    {
      "station_id": "OTC-EXAMPLE-0002",
      "status": "removed",
      "removed_in": "20991231",
      "removed_reason": "Example tombstone: the only input record contained no tide."
    }
  ]
}