[pavement]

IP address is most definitely part of the voting ring algo. I'm almost positive about that much.

[forgottenacc57]

Is there a safer alternative such as using salted hashed ip addresses?

[jwilk]

Certainly not before IPv6 is widely adopted.

IPv4 address space is so small, any hashing can reversed with brute force.

[microwavecamera]

If you knew the hash being used you could just brute force them.