That Bitcoin dip was real transactions. The BTC network does not permit ‘errors’. Multiple encrypted verifications from every bitcoin node that encounters the transaction and calculates it’s validity. I don’t know what the volume was, but apparently stuff was trickled out at the low price level for several minutes before the price rebounded. Didn’t work at all like a leveraged, derivative-laden gold chart, though. No follow thru cascade like the financial wizards hoped.
BTC now $5320.