Interesting.

Campanella Park Piru is a small or medium size gang from the west side of Compton.
Maybe at some point someone affiliated with CPP started that Alaska set at some point.

And yeah not all Piru's will consider themselves Bloods but many of them do. It's one of those Gray area things. Depending on how each set or even down to how each individual feels. One will tell you they're piru and not blood and another will say Piru is a subset of bloods.
However I've never seen a Piru set write Blood in any of their graffiti when they write their hood. Except Pacomia Piru Bloods.
Yet they talk likes Bloods and use the word Blood when referring to one another.