{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.bitcoinuniverse.dev/witc/v1/marker.schema.json",
  "title": "Decoded Witness Circles marker",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "magic",
    "version",
    "network",
    "networkId",
    "opcode",
    "participantCount",
    "contextHash"
  ],
  "properties": {
    "magic": { "const": "WITC" },
    "version": { "const": 1 },
    "network": { "enum": ["mainnet", "testnet3", "signet", "regtest"] },
    "networkId": { "type": "integer", "minimum": 0, "maximum": 3 },
    "opcode": { "const": 1 },
    "participantCount": { "type": "integer", "minimum": 2, "maximum": 16 },
    "contextHash": { "type": "string", "pattern": "^(?!0{64})[0-9a-f]{64}$" }
  }
}