What is EIP-55?
EIP-55, proposed by Vitalik Buterin, introduced a backward-compatible checksum mechanism for Ethereum addresses.
Because normal Ethereum addresses are raw hexadecimal strings (like `0x8f32...`), mistyping a single character usually results in sending funds to a black hole.
EIP-55 encodes the checksum of the address into the capitalization of the letters (A-F). If a user typographically errors an address, the hash recalculation changes and forces a capitalization discrepancy, allowing wallets to reject the transaction.
1How to Use
- 1. Paste an Ethereum address (lowercase, uppercase, or mixed).
- 2. The tool verifies if it's grammatically valid (length, hex constraint).
- 3. It evaluates whether the mixed casing strictly aligns with its Keccak-256 hash checksum.