Bottled Faith?

Just wondering how to actually get this flask? im fairly sure it can only be obtained in league, or brought into standard via hardcore league. im assuming inside of a memory probably from a boss?

ive been googling poe bottled faith since the start and still cant seem to find anything on the wiki or reddit. im just wondering how else to obtain it rather than just flat out buying it. perhaps chancing a sulphur flask or bestiary? i dont think it would be a common drop anyways otherwise it would be priced rather cheap.

but im just trying to figure it all out. just started a character in league for the sole purpose of trying to obtain it one way or another. trying to figure out what my options are here

alright nvm i just found a new reddit site suggesting its loot from the memory cortex. i guess ill have to farm that unless theres an easier way

looking now it appears to be loot obtained in the Synthete Masterpiece (Cortex Distant Memory) a distant memory that can spawn inside of the nexus. sounds like rng stacked on top of rng :( yeah fuck it i guess im probably better off just farming currency and buying one