| Screenshot | Test payment | Signed message | Wallet certificate | |
|---|---|---|---|---|
| Proves control? | No | Yes | Yes | Yes |
| Cost | Free | A network fee | Free | From $1 |
| Speed | Instant | Wait for confirmation | Instant | About two minutes |
| Leaves a public trace? | No | Yes, forever | No | Only if you share it |
| Easy to check? | Can't be checked | Someone has to find the transaction | Needs the right tool and format for the network | Open a link; signatures checked in the browser |
| Can include identity? | No | No | No | Yes (Tier 2), plus AML (Tier 3) or company (Business) |
Which to use
- Between two people who know the tools: a signed message is free and strong.
- When the other side isn't technical, or needs a record: a certificate. It's the same signature, packaged as a link they can open, with our counter-signature and optional identity and AML checks.
- When the other side insists on a test payment: it works, but a signature proves the same without the fee or the public trace. Point them to why signing is safe.
- Never rely on screenshots.
Network-specific steps: Bitcoin, Ethereum, Tron, XRP, and the rest in all guides.
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
What's the cheapest way to prove I own a wallet?
Signing a message: it's free and moves nothing. A VerifiedWallet certificate packages that signature as a checkable link from $1.
Why isn't a test payment the best option?
It works, but it costs a fee, waits for confirmation and leaves a permanent public trace. A signature proves the same thing instantly and privately.