How to identify old and new wallet addresses by length?

Question

I heard there are new and old wallet address formats. Im curious about the differences between them in terms of character length? How can I identify whether an address is in the old or new format just by looking at it?

skywinder · Answer

The new wallet address format is 32 bytes long, while the old wallet address format is 20 bytes long. You can simply look at the length to determine the type of address: the old format is 40 hexadecimal characters, and the new format is 64 hexadecimal characters since each byte is represented as 2 hexadecimal characters. Just check the number of characters, and you can tell them apart.

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How to identify old and new wallet addresses by length?

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