Comment by metalrain

Visualized like this it feels like security through obscurity, but there must be reason for this.

I did wonder why initialization is like:

1. Initialize hash value h0 to h7: first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19).

2. Initialize array of K constants: first 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311