Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,550,776",
      "signature": "0xb8b1ebf41b0ba1ff8544b69a085b5f73749d6b432131cc7912a8d6682eea0754b2c8df1b495bc66b43df28e8bc7122b7",
      "randomness": "0x0a67dc628bd00daf966913b6edc0017f82fdf541cb3ba4eda9e80322b64a09e8"
    }
  ],
  "blockNumber": "7,408,029"
}

{
  "Sr25519": "0x5c600754e135d07b01b37feeb2275f3f7e07ed67446c029e6866bc20de92721e6511ea79c09a798838df4275d393a5b31289e12061c72bec9994bbc076dfa581"
}