👉 In cryptography and computer science, an "unsignable" value is one that cannot be signed. In other words, it's impossible to verify if a particular value is signable or not by any means. This can be useful in situations where you want to ensure that the data being transmitted is valid but also not vulnerable to tampering or manipulation. For example, consider a scenario where you're sending an email with a password that needs to be signed before being sent. If the password is uns