What would be helpful is a shasum of the phoenixminer binary. I am using 5.5c downloaded from this thread a while ago, with the right checksum. This is the linux version. My Phoenix miner binary has:
user@miner$ sha256sum PhoenixMiner
6de6285d944981576862c960dfa917bbd4f72c5fac45f0b2880c560c89f12e81 PhoenixMiner
user@miner$ ls -la PhoenixMiner
-rwxrw-r-- 1 user user 9373180 Jan 22 06:57 PhoenixMiner
Just verified on a hiveos install and the checksum is the same for the binary there.
If somebody could do the same for Windows (non-nicehash binary, but 'official' download) we have something to compare the nicehash binaries to. Just an idea