Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,554,374",
      "signature": "0xb73d098db942412801f8d7470a464cf627391430d692b4648b40e63328e6d699c4f73fbbb8f52e17b857b1a6e9036fa3",
      "randomness": "0xa781659f2fb96db89be8107f107df1bbc66eb99c8f91f1d86a8d4a47336fe220"
    }
  ],
  "blockNumber": "7,408,929"
}

{
  "Sr25519": "0x642ff7164771a779b005562965adfc38448b708d4953d1bad493b1a20c531e2ea4ec3e2f773f690839725f06c0848ee500dfe6529e43e578edb8e38a14ed7c84"
}