{
  "legacy": {
    "crc_32": {
      "new": "fd801e74",
      "old": "3ff1a340"
    },
    "md5": {
      "new": "ab852a503b50ca0ed4c5bb679824cb6c",
      "old": "49061455d9b45a74eeee40f07c058c24"
    },
    "sha_1": {
      "new": "9ad4809b0b18886a61eeb29cf9c0c913f08a07db",
      "old": "fa91914ee4b3c35f77d00c00b41d5322be44b7cd"
    },
    "track_performer": {
      "new": "blk"
    },
    "track_title": {
      "new": "1"
    },
    "write_offset": {
      "new": "-1670",
      "old": "+2838"
    }
  }
}