How it works
The wallet signs a short text that starts with APTOS and contains our message and a one-time code. Aptos accounts can change their key, so the address alone doesn't tell us which key is current: we ask the Aptos network for the account's authentication key and check that it matches the key that signed.
Step by step
- Install Petra, Nightly or Pontem from the wallet guide.
- On Get verified, click Connect next to your Aptos wallet.
- Approve the connection, then the message.
Good to know
- Accounts with an ordinary (Ed25519) key work. Keyless accounts made with Google or Apple sign-in can't be verified yet.
- If you rotate the account's key after you're verified, the certificate still shows what was true when it was issued.
- Tier 3 on-chain screening isn't available for Aptos yet. Tiers 1 and 2 are.
Sign once with your wallet: free, no transaction. We counter-sign it and give you a link anyone can verify. From $1.
More guides
How to check who owns a crypto wallet
Addresses don't carry names. Here's what does tell you who's behind one.
What is address poisoning, and how do you avoid it?
A lookalike address in your history, waiting for you to copy it. How to spot it.
Is this crypto address a scam? Check before you send
A one-minute checklist before any crypto payment you can't undo.
Crypto proof of funds: how to prove you hold it
A balance anyone can see, plus a signature only you can make.
Questions
Does signing cost APT or gas?
No. A signed message isn't a transaction, so nothing is sent and there's no fee.
Why do you check the network?
An Aptos account can rotate to a new key. Checking the account's current authentication key makes sure the key that signed really controls it.
Can I use a Ledger?
Yes, through Petra or another wallet that supports message signing with it.