Check an ownership proof

Exchanges sometimes ask a customer to show that they control the wallet a transfer comes from or goes to. In the VisionSwap app, you can sign the exchange's message with a Vision wallet, a deposit address or your connected wallet. Anyone can check the result here, in their own browser: nothing typed into this check is sent anywhere.

Last updated October 15, 2026.

How it works

• The app signs the text VisionSwap ownership proof:, then a new line, then the exchange's message, as UTF-8, with the address's own ed25519 key: the same kind of signature a Solana wallet makes when it signs a message.
• The first line means the signature can never be mistaken for a transaction or any other message, so signing it can't move funds.
• To check it with your own tools, verify the ed25519 signature over that exact text with the address's public key (the address, decoded from base58). Any standard ed25519 library does it.
• A valid signature shows that someone with the address's key signed the message. It says nothing else about the address, the person or where the funds came from.

Making a proof

In the app, open Wallets, then More on a Vision wallet, and choose Prove control. For a deposit address or the wallet you connected, use Prove I control an address under Your records. Paste the exchange's message, sign, and copy the address, the signed message and the signature back to the exchange.

Nothing on this page is legal or compliance advice. See also the Compliance and Security pages.