Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,537,816",
      "signature": "0x894421cd7c757dc45a6c5da7654bdd9a1184a823680d0b47f19582ef6f2b7a7fd7a603edd82d38b71f61df879a5531fc",
      "randomness": "0x2d383f9e72e86cd97c3327bc2872b32c4b4553b997dca3f36e3ef17bb3c5319f"
    }
  ],
  "blockNumber": "7,404,789"
}

{
  "Sr25519": "0xf857dc311846d035a5ce3138cfce181ba293bc13595e9682f33b145618dfe726f0fa3c0619a9fc4d592fc35d4dc6f73b0e0e45b3ae93249ef100a043fc879e80"
}