Write Pulse

{
  "public": {
    "Sr25519": "0xb2d7ce3e75c398ab506ddf8953e06bdd58c6a17412037afb8764efae7e94c04b"
  },
  "pulses": [
    {
      "round": "25,557,580",
      "signature": "0x8e888a8754ba6b5450ceb79aefdd0785817ee350e3a6156fd70790de14e15e829a4a236b198c661fd00e4b78558d0bf8",
      "randomness": "0x668a9290946aab799625d0343069681433b0ec27299f5e5059b27c131ab5925b"
    }
  ],
  "blockNumber": "7,409,731"
}

{
  "Sr25519": "0x9080688ca1af72afdcb0e4acb4459e73b93e8ac20ff2062398948e2cc96b570c11605f4becc6459469a631b98cba97ae393c5eaaf45ed7f14d83dad733cca182"
}