{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "kb://schemas/evidence.schema.json",
  "title": "Knowledge evidence entry",
  "type": "object",
  "required": ["schema_version", "id", "version", "evidence_type", "subject_refs", "artifacts", "maturity"],
  "properties": {
    "schema_version": {"const": "1.0"},
    "id": {"type": "string", "pattern": "^evidence\\."},
    "version": {"type": "string"},
    "evidence_type": {"type": "string"},
    "subject_refs": {"type": "array", "items": {"type": "string"}},
    "artifacts": {"type": "array", "items": {"type": "object"}},
    "claims": {"type": "array", "items": {"type": "string"}},
    "maturity": {"type": "string"}
  },
  "additionalProperties": false
}