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Crypto course

Using Crypto · Level 4

Sending and receiving without losing coins

Addresses, networks, test transfers and the mistakes that cannot be reversed.

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Sending and Receiving Safely

1 min
TRC-20BEP-20ERC-20PolygonSolanaalways match the network on both sides before you press send
Figure — the same token lives on different networks, send it on the wrong one and it is gone

Sending crypto is simple, and the two ways it goes wrong are always the same: the wrong address, or the wrong network. Both mistakes are permanent.

Copy, never type. Paste the address, then check the first four and last four characters against the original.

Match the network on both sides. USDT on BEP-20 sent to a TRC-20 address is usually unrecoverable.

Send a test first. For any large transfer, move a small amount, confirm it arrives, then send the rest.

Expect a fee. Every network charges one, and it is paid in that network's own coin.

Once the transaction shows as confirmed on the network, it is final. There is no chargeback, no dispute window and no recall.

End-of-level test

Answer all 3 questions. Score 67% or more to pass this level.

1. Before a large transfer you should…

2. Sending USDT on the wrong network usually means…

3. Network fees are paid in…