A blockchain transfer cannot be undone, so the checking has to happen before you press send. Here is a short checklist that covers the mistakes that cost the most.
Published September 29, 2026 · 3 min read
A blockchain transfer is irreversible: once it is sent to the wrong place, nobody can bring it back. With a small amount, a mistake is an annoyance. With a large one, it is a serious loss. Most problems come from the same few sources: a wrong network, a wrong or altered address, an amount below the minimum, and fees or delays nobody expected. Each of these takes a minute to check, which is far cheaper than fixing it afterwards, and usually fixing it is not possible at all.
The same coin can live on several networks. USDT, for example, can move over TRC-20, ERC-20, BEP-20 or TON, and they are not interchangeable. The network you choose when withdrawing must be the network the receiving address was issued for, otherwise the coin can end up unrecoverable. In Nexus Pay, for instance, each deposit address belongs to one network, and a transfer sent through a different one will not arrive and cannot be reversed. So choose the network first, then copy the address that belongs to it, and compare the network name on both screens.
Check the full address, not just the first and last few characters. The safest way is to scan its QR code instead of typing it by hand, because a single wrong character makes a different address, and the transfer cannot be reversed. If you have to copy and paste, compare the pasted result with the source before confirming. Treat an address that arrived through a chat or message with extra care and confirm it with the person or service it came from.
Yes, for a large amount it usually is. A first small transfer shows that the address is correct, the network is right and the funds actually arrive. Only after that do you send the main amount. The price is an extra network fee and some waiting time, which is small next to the risk of losing the whole sum. Wait until the test amount is credited on the receiving side before you continue.
The network fee and the confirmation speed are not fixed: both rise when the network is congested, so look at the current values before you send. The amount must also be above the receiving side's minimum, or it will not be credited. Nexus Pay shows a minimum deposit for every network in the app, and deposits below it are not credited. Once the network confirms the transfer, the deposit is credited automatically, which takes from a few minutes to about an hour depending on the blockchain.
| Check | What it prevents | How to do it |
|---|---|---|
| Network | Funds sent on the wrong network and lost | Compare the network name on the sending and receiving screens |
| Address | A typo or altered address, with no way to reverse | Scan the QR code and check the full address |
| Test transfer | Sending the main amount to an address that does not work | Send a small amount first and wait until it is credited |
| Fee and speed | Unexpected cost or a long wait when the network is busy | Look at the current fee and confirmation speed before sending |
| Minimum amount | A transfer that arrives but is not credited | Check the receiving side's minimum and stay above it |
Run through this list one last time, calmly, without rushing:
If any item is unclear, pause and clarify it before sending. This is general information, not financial advice.
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