Write Pulse

{
  "public": {
    "Sr25519": "0xd478d73632aa403c1d145a6446ab7c757b277866647f17e47014fabfe9c24649"
  },
  "pulses": [
    {
      "round": "25,557,570",
      "signature": "0x8227845e1396a9df40c67dc3df48730e79b0e5530ef258b09c219a0cd3f685058b04bef3d385b4ec2cf0c65b55125b9b",
      "randomness": "0xd2a054b2c2c7c672b9ad0419a95e3938bd1d1670579d5786ba3b929d43463dc1"
    }
  ],
  "blockNumber": "7,409,728"
}

{
  "Sr25519": "0xc638a61a6d296a09a49b46bdc5521fbab230257dd62f502dfefb071c1514df58ed47326e454a004502e5b2593255063f37c5960a4f301536b6cf0d9b7fcd7c8f"
}