DarkKestral said:I happen to see a VERY handy spell that will neatly deal with this: PURGE AKASHIC RECORD.
Probably wouldn't affect the ability Dannyalcatraz quoted, since that ability channels a specific individual (though it'd rely on a GM's call as to exactly how the spell works). It does affect the collective memory, accessed via the Akashic's "Delve into collective memory" ability, which is the Akashic's main tool for finding things out if he doesn't know of a specific individual who can help out, so it's useful for more general editing.
It's a high level spell, (9th/10th level) that can purge an individual's presence from the entirety of the Akashic record of history. If a god wanted to hide themselves, it's entirely possible that they would have used that spell at some point.
Or one of their enemies might do the same. If you use the default AU background, chances are good the Dramojh mucked around with the collective memory while they were in charge. In particular, the Diamond Throne setting has some gods who opposed the Dramojh, wouldn't be a big shock to find out the Dramojh spent some of their plunder on messing with the memories of those enemies.