{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://h2a-protocol.org/schemas/v0/h2a-memory.profile.schema.json",
  "title": "H2A-Memory Profile",
  "description": "Memory-record profile. Applies only when a grant lists 'h2a-memory'. Enforces the negative test: a DERIVED memory record MUST carry non-empty provenance, or it is rejected.",
  "type": "object",
  "additionalProperties": false,
  "required": ["h2a_version", "profile", "grant_id", "subject_ref", "record"],
  "properties": {
    "h2a_version": { "type": "string", "const": "0.1" },
    "profile": { "type": "string", "const": "h2a-memory" },
    "grant_id": { "type": "string", "pattern": "^[0-9a-fA-F-]{36}$" },
    "subject_ref": { "type": "string", "pattern": "^urn:h2a:subject:[A-Za-z0-9._-]+$" },
    "record": {
      "type": "object",
      "additionalProperties": false,
      "required": ["record_id", "memory_type", "content_hash"],
      "properties": {
        "record_id": { "type": "string" },
        "memory_type": { "type": "string", "enum": ["raw", "derived"] },
        "content_hash": { "type": "string", "pattern": "^sha256:[0-9a-f]{64}$" }
      }
    },
    "provenance": {
      "type": "object",
      "additionalProperties": false,
      "required": ["sources"],
      "properties": {
        "sources": {
          "type": "array",
          "minItems": 1,
          "items": {
            "type": "object",
            "additionalProperties": false,
            "required": ["source_ref", "method"],
            "properties": {
              "source_ref": { "type": "string" },
              "method": { "type": "string" }
            }
          }
        }
      }
    },
    "retention": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "retention_horizon": { "type": "string", "description": "ISO 8601 duration." },
        "deletion_on_revoke": { "type": "boolean", "default": true }
      }
    }
  },
  "allOf": [
    {
      "if": { "properties": { "record": { "properties": { "memory_type": { "const": "derived" } } } } },
      "then": { "required": ["provenance"] }
    }
  ]
}