Hi Cedric, been chatting with some friends lately and heard some good things about Blake and how light weight it is, and that XQN uses it for PoS hashing. I am looking through your source code and it appears that kernel hashing is still using standard SHA256. Am I missing something in the code?
Yes, you are missing something

Do some more exploring...
Ahh i figured it out. You are still doing the PoS kernel hashing in SHA256, and are only hashing the block header in Blake. Ok I was under the impression that the actual kernel hashing was blake