bitcoin on Nostr: Hello world!

{ "id": "727fb39610cfb91e6e7e701053c8757750a33fe171a81e671ee8e404fc6df31d", "pubkey": "f21b9750227b2ed97909d3cc44028f3dc0d674d46874b37eecb5e95c35a15e0d", "created_at": 1671398133, "kind": 1, "tags": [], "content": "Hello world!", "sig": "ea2f768ab64648eae20f598094b3e29164a27b1fbc0feda10dc9d53b56e45032b0e7d49d206fd519b57b776d9d1660edfbdb407d59165050ef388cf91cf1020d" }