DASHU on Nostr: what is coin.os ？

{ "id": "e635d0ed17a09a86647f132d35a4b545ae958420acb2255ab05e678ed6176bb9", "pubkey": "29320975df855fe34a7b45ada2421e2c741c37c0136901fe477133a91eb18b07", "created_at": 1739015689, "kind": 1, "tags": [ [ "e", "d4f584d9aa28ba0dc634aa9cffd72e8b8b841694d81eebe3fefa7ca329864066", "wss://relay.damus.io/", "root", "b133bfc57bed61c391d4e8f953b906c7f1709c438d91c75fb6daf79449d5789d" ], [ "p", "b133bfc57bed61c391d4e8f953b906c7f1709c438d91c75fb6daf79449d5789d" ] ], "content": "what is coin.os ？", "sig": "8ee8ec839de4f546826b96353761cc40b85630b9849470ec249f65dceb0556135b3f2058fde42c1d684718920feda33c49bfdb9681576d13b4a627b7226b028e" }