{
  "$id": "https://biosimulant.com/standards/model-compatibility/v0.1/schemas/signal-envelope.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "properties": {
    "actual_context": {
      "type": "object"
    },
    "artifact": {
      "type": "object"
    },
    "contract_digest": {
      "pattern": "^sha256:[0-9a-f]{64}$",
      "type": "string"
    },
    "observation_time": {
      "type": [
        "string",
        "number",
        "null"
      ]
    },
    "origin": {
      "type": "object"
    },
    "provenance": {
      "type": "object"
    },
    "schema_version": {
      "const": "0.1"
    },
    "uncertainty": {
      "type": "object"
    },
    "value": {}
  },
  "required": [
    "schema_version",
    "contract_digest"
  ],
  "title": "Signal Envelope",
  "type": "object"
}