Ethereum addresses do not differentiate between capital and lower-case letters. The system may display the address in capital or lower-case letters after registration. Although capital and lower-case letters are not differentiated, it is possible that an address with even just a single letter difference exists. In order to prevent withdrawals being sent to the wrong address, the address is displayed with a checksum of commonly used capital and lower-case letters. If any crypto assets (virtual currency) is withdrawn to an incorrect address, it is impossible for it to be returned. Please thoroughly confirm the receiving address.