Microchipping any animal, hybrid or not, is a very good idea. My cats are chipped, and when I take my snakes in for their checkups, they will be getting chipped as well.

On the topic of chipping a hybrid, it may actually be a BETTER idea to chip your hybrids, only for that if a hybrid snake is found, and it has characteristics of both Blood Pythons and Ball Pythons, whoever finds it may not be able to classify it at all. They may not realize it is a hybrid. With a chip - that at least takes the guesswork out of the snake - as long as who finds it is smart enough to scan for a chip.

Either way, it would give a better piece of mind to everyone involved. I say go for it.