Not to mention - Even if we assume that the dems really did gimmick the coin flip, with a double headed nickel or whatever else, they could have picked a much better point at which to cheat, considering that all six coin flips amounted to basically nothing - She would have to have won a minimum of a dozen flips in different counties to account for one state delegate equivalent, of which she was ahead by four(iirc).
The best records the democrats have don’t actually show her winning six coin flips - there’s official record of seven, with Burnie winning five, Hillary one, and the seventh was deciding if a county delegate went to Sanders or O’Malley(Sanders Won.)
There’s also a lot of precincts where there’s no official record of if coin flips were used or not - those that reported in by phone, rather than the microsoft app - however anecdotal evidence(or other outside evidence, such as videos being circulated on youtube) from those precincts indicate Sanders won at least half, if not the majority, but with no clear record, we can really never be sure of what truly happened.