Ayisha
Contributor
The black tag shown in the video is definitely a different tag than the authentic Guinness white tag the adjudicator is holding.
Even if all but the depth was covered in black tape, the authentic depth marking would show in the bottom right corner, not take up the whole card.
Since the authentic Guinness tag along with Gabr's computer screen showing the max depth was required to be visible in the video in order to be authenticated, and this does not appear to have been met, this discrepancy alone should have disqualified the record attempt.
This might just go down as the biggest SCUBA hoax...