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Does big case and small case matter for a ETH address?
Does big case and small case matter for a ETH address?
No, Ethereum addresses are case-insensitive. This means that whether you use uppercase or lowercase letters in an Ethereum address, it will still point to the same destination. For example, the following two addresses are considered identical:
0x32Be343B94f860124dC4fEe278FDCBD38C102D88
0x32be343b94f860124dc4fee278fdcbd38c102d88
However, there is a checksum format known as the EIP-55 standard that uses a mix of uppercase and lowercase letters to help detect errors. In this format:
- If you enter an address with incorrect capitalization (according to EIP-55), some wallets or services may flag it as invalid.
- The mixed-case format is primarily used for error detection, but it is not required for the address to function.
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Key Points:
- Ethereum addresses work regardless of capitalization.
- The EIP-55 checksum uses mixed-case formatting to detect errors but is not mandatory for transactions.
So, while case doesn’t affect the functionality of the address, using the correct mixed-case format can help ensure that the address is valid and reduce the chances of errors.
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