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                  "stream_id": {
                    "type": "string",
                    "format": "uuid",
                    "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12})$"
                  },
                  "operation": {
                    "type": "string",
                    "const": "withdraw"
                  },
                  "predecessor_event_id": {
                    "type": "string",
                    "pattern": "^[A-Za-z0-9_-]{1,128}$"
                  }
                },
                "required": [
                  "event_id",
                  "occurred_at",
                  "stream_id",
                  "operation",
                  "predecessor_event_id"
                ],
                "additionalProperties": false
              }
            ]
          },
          "acknowledgement": {
            "type": "object",
            "properties": {
              "proposal_id": {
                "type": "string",
                "pattern": "^prp_[0-7][0-9A-HJKMNP-TV-Z]{25}(?![\\s\\S])"
              },
              "event_id": {
                "type": "string",
                "pattern": "^[A-Za-z0-9_-]{1,128}$"
              },
              "ingested_at": {
                "type": "string",
                "format": "date-time",
                "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z))$"
              },
              "status": {
                "type": "string",
                "enum": [
                  "pending",
                  "accepted",
                  "rejected",
                  "withdrawn"
                ]
              }
            },
            "required": [
              "proposal_id",
              "event_id",
              "ingested_at",
              "status"
            ],
            "additionalProperties": false
          }
        },
        "required": [
          "profile_id",
          "source_client_id",
          "event",
          "acknowledgement"
        ],
        "additionalProperties": false
      }
    },
    "unsupported": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "category": {
            "type": "string",
            "pattern": "^[a-z][a-z0-9_.-]{0,63}$"
          },
          "reason": {
            "type": "string",
            "minLength": 1,
            "maxLength": 4096
          }
        },
        "required": [
          "category",
          "reason"
        ],
        "additionalProperties": false
      }
    },
    "proof": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "jws"
        },
        "alg": {
          "type": "string",
          "const": "ES256"
        },
        "kid": {
          "type": "string",
          "pattern": "^[A-Za-z0-9_-]{42}[AEIMQUYcgkosw048]$"
        },
        "jws": {
          "type": "string",
          "pattern": "^[A-Za-z0-9_-]+\\.\\.[A-Za-z0-9_-]+$"
        }
      },
      "required": [
        "type",
        "alg",
        "kid",
        "jws"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "format",
    "exported_at",
    "origin_host",
    "history_mode",
    "partitions",
    "entries",
    "tombstones",
    "grants_history",
    "receipts",
    "log_events",
    "public_keys",
    "policy_history",
    "proposals",
    "unsupported",
    "proof"
  ],
  "additionalProperties": false,
  "$defs": {
    "__schema0": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "number"
        },
        {
          "type": "boolean"
        },
        {
          "type": "null"
        },
        {
          "type": "array",
          "items": {
            "$ref": "#/$defs/__schema0"
          }
        },
        {
          "type": "object",
          "propertyNames": {
            "type": "string"
          },
          "additionalProperties": {
            "$ref": "#/$defs/__schema0"
          }
        }
      ]
    }
  }
}