Bind your X account to an identity you own, with evidence that survives the account being deleted — so nobody can take your handle later and claim to be you.
A key is derived on this device. You will never see a seed phrase, and nothing is stored on a server.
This exact text, posted by you. It is what lets anyone confirm the two accounts are the same person — and it needs no API, just the normal composer.
—Open X composer
Open your new post on X, copy its URL from the address bar, and paste it here.
This is the step everyone skips and the one that matters most. Your proof post dies with your X account — so the evidence disappears at exactly the moment someone else has your old handle and is claiming to be you. An archived copy is held by a third party with no stake in the fight.
Two events: a standard NIP-39 claim any Nostr client understands, and an XOnly attestation carrying the archived proof and your account id.