Are Ethereum addresses case-sensitive?

Ethereum addresses are indeed case-sensitive. This means that the capitalization of letters matters, and each character in the address must be exactly right. For instance, if an Ethereum address is “0xF8a6b9899e4dC5Df7be823633E095De6D2fB0024”, it cannot be entered as “0XF8A6B9899E4DC5DF7BE823633E095DE6D2FB0024” or any other variation from the original address. Failure to enter an Ethereum address correctly can result in the loss of funds since transactions will not be completed correctly. It is important to double-check all information before making a transaction.