This is indeed a very interesting encoding. One part of the optimization comes from the use of binary encoding and the other from using offset tables to optimiz

This is indeed a very interesting encoding. One part of the optimization comes from the use of binary encoding and the other from using offset tables to optimize random access. Offset tables also allows to modify random data in the structure without having to reencode the whole information. This comes at the price of less compact data. It looks like I could update my YABE encoding which is a straight JSON binary encoding.