1.The spectator can keep the card as souvenir, and from this point on, EVERYTHING is fully examinable!
观众可以使卡作为纪念品,并从这个角度上,一切全考试!
2.If couples of users make a coalition and collude to generate a new image or video section, they would weaken the examinable energy of the fingerprint a lot, hence avoid being traced.