Quote from: Z1pp4 on Today at 08:26:51 AM

I might sound stupid, but can some1 explain me how this "0x236fb6d5ad1f43" is a private key if in normal life the priv key is 51 characters (or 52) long?

This is the WIF private key for key 0x1
5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf

If you decode it, you will see this
800000000000000000000000000000000000000000000000000000000000000001a85aa87e

If you remove the last 8 characters and the first 2 characters, you will be left with 63 zeros and a 1.
What you have posted is the hexadecimal format, what I posted is wallet import format, wallets convert the hex key to WIF, or WIF to hex depending on what you are doing. 😉