On Tue, May 10, 2016 at 6:43 PM, Sergio Demian Lerner <sergio.d.lerner@gmail.com> wrote:

You can find it here: https://bitslog.wordpress.com/2014/03/18/the-re-design-of-the-bitcoin-block-header/

Basically, the idea is to put in the first 64 bytes a 4 byte hash of the second 64-byte chunk. That design also allows increased nonce space in the first 64 bytes.

My mistake here. I didn't recalled correctly my own idea. The idea is to include in the second 64-byte chunk a 4-byte hash of the first chunk, not the opposite.