Bounce on Bitfinex was from $3731.70 :)
... for now, at least. Like you, not convinced this was the real bottom yet, though. I'd like to see a proper panic sale like on July 16th to feel we're over the catharsis and ready for the next chapter upwards.
It's on my chart as the first line of support (first blue dotted horizontal line). Go by the link to see it properly.