A crypto transfer cannot be recalled once it is sent, so the only safe moment to catch a fake or mistaken request is before you pay. This is a short checklist you can run in a few minutes.
Published September 30, 2026 · 2 min read
A blockchain transfer is irreversible: once it is confirmed, nobody can bring it back, including the wallet you sent it from. That means a wrong address, a wrong network or a fake request cannot be fixed afterwards. The checks below all happen before sending. This article is general information, not financial or legal advice.
If a request arrives by message, email or a shared document, do not use that same message to verify it. Reach the person or company through a channel you already trust, using contact details you had before the request came in. Ask them to confirm the amount, the coin, the network and the address, or at least its beginning and end.
Compare the address character by character, or better, scan a QR code so you do not have to type anything. Then check the network: the same coin can exist on several networks, and an address is issued for one of them. Sending through a different network than the address was issued for can mean the funds never arrive and cannot be returned. Before you confirm, read the address and network on the final screen once more.
Yes, when the amount is meaningful. A small first transfer shows that the address, the network and the recipient all work as expected, and you send the rest only after the recipient confirms receipt. One practical detail: every network has a minimum deposit amount, and deposits below it are not credited. In Nexus Pay the minimum for each network is shown in the app, so make the test at or above that figure. Also allow for confirmation time, which ranges from a few minutes to about an hour depending on the blockchain.
Run the same short sequence every time, even for people you know:
The table below shows what each step is for.
| Check | What it guards against | When to do it |
|---|---|---|
| Second-channel confirmation | A fake or altered request | Before anything else |
| QR code scan | Typing mistakes in the address | When entering the address |
| Network match | Funds sent on the wrong network | Before confirming |
| Small test transfer | Wrong details that look right | Before a larger amount |
A wallet cannot judge whether a request is honest, so the decision stays with you. It can still make the checks easier. In Nexus Pay, each deposit address belongs to one network, and the app shows the minimum deposit for it, which helps when you receive or test a transfer. For card spending, the card only uses the available balance and can be frozen in the app in one tap if something looks wrong.
In Telegram, in a minute, with no paperwork.
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