Given the characters, this looks like a combination of Cyrillic and the standard Latin alphabet. Plus, some characters in Cyrillic are identical to Latin, but have different Unicode identities. Given the p=23, we can assign each letter a value from 1-26 in the order they appear, and something can probably brute-force it with time, given the one character shown to have a direct correlation to slightly weed out the list of possibilities. I mean, you can't just look at a Cyrillic alphabet chart and go from there. There are so many strange, rare, and unused characters in the alphabet. IIRC, there's a letter only used to write the phrase "many-eyed seraphim". It'd take days, weeks if not YEARS of simple bruteforce to crack it. So there is more than likely some kind of extra evidence somewhere. Perhaps the phrase "p=23" is actually the key, and the phrase is actually nonsense. Well, that's been my weird theory, and I'm about to hit the thousand character mark so hope you enjoyed the thing...