node on Nostr: 2 different nodes?

{ "id": "ec4170be5a003878d8102c79d4e52830e94a3e023b23b9d1e0aded7f9a73cabc", "pubkey": "18905d0a5d623ab81a98ba98c582bd5f57f2506c6b808905fc599d5a0b229b08", "created_at": 1740179202, "kind": 1, "tags": [ [ "e", "0642e32837fc61577434d0723d30239430251d45515c9f4f9f45b484a75bfd93", "", "root" ], [ "p", "e034d654802d7cfaa2d41a952801054114e09ad6a352b28288e23075ca919814" ] ], "content": "2 different nodes?", "sig": "6ef6a7eafb17e2705647c9a91bc73682897ff39825c03310a63bf711f341770622a574edd547b28c62f03e3a9bfb6a895fe128fa90a75f3598955272d765cc0f" }