Receiving a crypto payment starts with sharing the correct wallet address. Understanding how addresses and QR codes work helps avoid costly mistakes that generally cannot be reversed.
Published September 15, 2026 · 2 min read
A wallet address is a long string of letters and numbers that uniquely identifies where crypto can be sent on a specific network. It functions similarly to a bank account number, but each address is tied to one blockchain network. Sending crypto to an address on the wrong network, or to an address that does not exist or belongs to someone else, generally cannot be reversed once the transaction confirms.
A QR code representing an address lets someone else scan it directly rather than typing or copy-pasting a long string. This reduces the chance of a manual transcription error, which could send funds to the wrong place. Many wallets, including Nexus Pay, display a scannable QR code alongside the text address to make sharing easier and safer.
Some wallets generate a new receiving address for each transaction for privacy, while others reuse the same address — both are valid designs. It is worth knowing which a specific wallet does before assuming an old, saved address is still the correct one to use. If you are unsure, open the wallet and confirm the current receiving address before sharing it.
Before you share an address, confirm which network the sender will use and that your wallet supports receiving on that network. Double-check the address string or QR code matches what your wallet displays.
Taking these steps reduces the risk of an irreversible mistake.
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