{
  "$id": "urn:mars:schema:v1:lineage-reference",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "A reference to the human lineage chain of a MARS entry's publisher.\n\nEvery non-root entry traces back to a human root DID through a chain of\ndelegations.",
  "properties": {
    "generation": {
      "description": "The generation distance from the root (0 = direct child).",
      "format": "uint32",
      "minimum": 0,
      "type": "integer"
    },
    "humanRootDid": {
      "description": "The DID of the originating human root.",
      "pattern": "^did:oas:",
      "type": "string"
    },
    "lineageChain": {
      "description": "Ordered chain of DIDs from root to publisher.",
      "items": {
        "pattern": "^did:oas:",
        "type": "string"
      },
      "type": "array"
    }
  },
  "required": [
    "humanRootDid",
    "generation"
  ],
  "title": "LineageReference",
  "type": "object"
}