Rust Pow Resources

Write a simple CLI script, that when given a 64-byte encoded string, it finds a suitable 4-byte prefix so that, a SHA256 hash of the prefix combined with the original string of bytes, has two last bytes as 0xca, 0xfe. Script should expect the original content of the string to be passed in hexadecimal format and should return two lines, first being the SHA256 string found and second 4-byte prefix used (in hexadecimal format).

⋰·⋰ Feeless What is Feeless? Feeless is a Nano cryptocurrency node, wallet, tools, and Rust crate. This is not the official project for Nano, only an