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You don't need an extension or any crypto to start. Make a wallet with your email, or sign in with a passkey, and we'll verify that. Prefer a proper wallet first? The wallet guide shows which to install.
A multisig wallet Bitcoin (Sparrow, Electrum, Nunchuk, Casa, Unchained), XRP signer lists, Tron multi-sign. Each key-holder signs.
Create a wallet with email No extension needed. A secure non-custodial wallet in seconds. Easiest
Connect an EVM wallet MetaMask, Rabby or Coinbase Wallet
Coinbase Smart Wallet Sign in with a passkey, no extension needed
Use a wallet on your phone Scan a QR code with MetaMask, Trust, Rainbow, the Safe app and hundreds more
Connect a Solana wallet Phantom, Solflare or Backpack
Connect GemWallet XRP Ledger · browser extension
Connect Crossmark XRP Ledger · browser extension
No Cardano wallet detected Install Eternl, Lace, Yoroi or Vespr to certify an addr1… address. Wallet guide
Connect a TON wallet Keeper (Tonkeeper), Walt (Telegram Wallet), Tonhub, OKX and more
No Tron wallet detected Install TronLink to certify a Tron (T…) address. Wallet guide
Sign by hand: Bitcoin, Litecoin, Dogecoin, Bitcoin Cash Electrum, Sparrow, Trezor, Ledger, Electrum-LTC, Dogecoin Core, Electron Cash or any wallet that signs messages
Not sure which wallet you have, or need one? See the wallet guide .
Your wallet has more than one Bitcoin address. Pick the one you want to prove you own; each certificate covers one address.
Coin
Bitcoin (BTC)
Litecoin (LTC)
Dogecoin (DOGE)
Bitcoin Cash (BCH)
Your address
A single-key address you hold the keys to. Multisig and exchange addresses can't sign.
Continue
In your wallet, open Sign message . Electrum, Electrum-LTC and Electron Cash: Tools → Sign/verify message. Sparrow: Tools → Sign/Verify Message. Bitcoin Core, Litecoin Core and Dogecoin Core: File → Sign message.
Choose the address above, paste this message exactly, and sign.
Paste the signature it gives you below.
Message to sign
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Signature
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The message is valid for 30 minutes. If it runs out, press Continue again for a fresh one.
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+ any EVM network