Sign a message

Prove you own a Garlicoin address by signing a message with its private key. Made for keys you hold outside a wallet, like a gift card, a paper wallet or a vanity address. Anyone can then check the signature on the verify page.

Sign

Signed by Signature

Check it ↗

Is the key in Garlicoin Core?

Then sign there instead, so the key never leaves your wallet: File → Sign message, pick a G address, type the message and press Sign Message. The result is exactly the same.

Keep the key safe

Signing happens on your device. This page is locked so it can't send anything anywhere, and nothing is saved.
For extra peace of mind, load this page, turn off Wi-Fi, then paste the key.
Only ever share the message and signature. Never the private key.

Which address type?

One key has a G, an M and a grlc1 address. Sign for the one you want to prove. G signatures can be checked everywhere, including Garlicoin Core. grlc1 and M signatures use the BIP137 style: our verify page and many Bitcoin-style tools check them, but Garlicoin Core 0.18 can't.