OceanSlim on Nostr: What is pubky?

{ "id": "199f2c240130d74918dcdbb06eaa66a9746060ac9ec200e6b2367b284fe64840", "pubkey": "16f1a0100d4cfffbcc4230e8e0e4290cc5849c1adc64d6653fda07c031b1074b", "created_at": 1744727167, "kind": 1, "tags": [ [ "e", "0e0e55529cc90827cc0994caf09055dfc0b96bd6d988dc7e751315f7e534fd9e", "", "root" ], [ "p", "eab0e756d32b80bcd464f3d844b8040303075a13eabc3599a762c9ac7ab91f4f" ] ], "content": "What is pubky?", "sig": "e3ff9f6dfe91df55555ea08a6e5cc98c4efd24a40f81db6afddac484d0002a9cf468895e5f3c805f870b845a5cc22a4eb0ce7ecb8631c9fe8d5b38b207bd8ac3" }