Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,577,013",
      "signature": "0xa2dfe7d9bfdfad1f2194fcaea28ac38adb92687dfd8286a2105091a29cc4779d48ba27f08944d19a1160219eddfd9fd2",
      "randomness": "0xd752c795700f82c6f8588ecbb13125a82d995516e6a4c6192f73356d634369b9"
    }
  ],
  "blockNumber": "7,414,589"
}

{
  "Sr25519": "0x90e49498552403510fd873bcc35b48b80ed969ce4cf6d4e21fdf46b74a254441d8256fb5ea29d72eb3de2cd827f5736b716f3860e5e8c46c6ba91ee40ba92187"
}