minecraft-packets/minecraft-packets/data/pc/1.12.2/from-server/multi_block_change/3.json

An easy way to query PrismarineJS/minecraft-packets

{
  "chunkX": -24,
  "chunkZ": 5,
  "records": [
    {
      "horizontalPos": 24,
      "y": 18,
      "blockId": 0
    },
    {
      "horizontalPos": 165,
      "y": 22,
      "blockId": 0
    },
    {
      "horizontalPos": 166,
      "y": 23,
      "blockId": 0
    }
  ]
}