Wallet Ownership Proof

Prove or verify who controls a crypto address with a signed message.

Device Only

Messages and signatures are checked on this device and never sent anywhere.

Nobody needs a seed phrase or private key for this, only a signature. If anyone asks for one, it's a scam.

Step 1 — Create the message to sign (optional)

Wallet address

Requested byReference (optional)

How the wallet owner signs it

MetaMask / EVM wallets: Sign with personal_sign (most dapps), or a 'Sign message' feature
Electrum: Tools → Sign/verify message
Sparrow: Tools → Sign/Verify Message (choose BIP-322 for SegWit/Taproot)
Ledger / Trezor: Sign message in Ledger Live / Trezor Suite
Phantom (Solana): Sign message
TronLink: signMessageV2

Signed message (exactly as signed)Signature