A search for “Zcash” on https://www.justice.gov/epstein yields 17 results. Most of it seems to be from data set 9, which was apparently released Friday as part of a drop consisting of millions of pages. Let’s see if there’s anything more than just guilt by association in them.
EFTA00603348.pdf (611.5 KB) 
ZEC auction announcement
EFTA00615490.pdf (91.3 KB) Zooko to Founders’ Reward Recipients
EFTA00793120.pdf (2.0 MB) Goldman Sachs slides
EFTA00811130.pdf (555.2 KB) 
Bryan Smith to ECC
EFTA00842748.pdf (54.7 KB) 
Madars Virza
EFTA00851916.pdf (33.0 KB) Madars Virza
EFTA01005408.pdf (241.3 KB) Jeremy Rubin [1]
EFTA01005493.pdf (275.0 KB) Jeremy Rubin [1]
EFTA01005499.pdf (286.1 KB) Jeremy Rubin [1]
EFTA01006915.pdf (179.7 KB) Richard Kahn [1]
[1] “I can separately fill you in on what Grin is, but it’s legitimate new tech, like ZCash” — Jeremy Rubin to Richard Kahn