Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,602,212",
      "signature": "0x884b06799e7dec4701f2c78cc7a578f118318319889163c032abf6a8231591d3ce46dbfcf927ee1b882df3b1e28deb60",
      "randomness": "0x0f9a190abc5f5dab025481a248ea782595ddd9cb003cd793251e4bf7478b4401"
    }
  ],
  "blockNumber": "7,420,870"
}

{
  "Sr25519": "0x0c0034861ea49d16d19b77faf260c9a9c7962bb22b5bf3d32e4d81ff99d32c40905c2091831239c7baa50d47d1946e74fe1354c603127d8a213944fcf475758e"
}