Well, perhaps this might help you, friend, if you really want to, just check if this is what you are looking for
Good luck...

source:

- https://bitcoin.stackexchange.com/questions/5671/how-do-you-perform-double-sha-256-encoding
- https://gist.github.com/vincenzopalazzo/78c3545090ce609a145f4f6261a7fa0f
- https://stackoverflow.com/questions/72411835/how-to-correctly-do-a-double-sha256-hashing