{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://tiffany.systems/api/schema/changes.schema.json",
  "title": "Changes",
  "description": "Scientific state changes, newest first. This feed carries weakening changes — executed falsifiers, new limitations, supersessions, withdrawals — not only publications.",
  "x-schema-version": "1.0.0",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "changes"],
  "properties": {
    "schema": {"const": "tiffany.systems/schema/changes/1.0.0"},
    "classification": {"type": "string"},
    "notice": {"type": "string"},
    "note": {"type": "string"},
    "count": {"type": "integer"},
    "changes": {"type": "array", "items": {"type": "object", "additionalProperties": false, "required": ["claim", "version", "at", "lifecycle"],
      "properties": {
        "claim": {"type": "string"}, "version": {"type": "string"}, "at": {"type": "string"},
        "lifecycle": {"type": "string"}, "change_note": {"type": "string"},
        "semantic_diff": {"type": "array", "items": {"type": "object"}}
      }}}
  }
}