Who was Bitcoin Sign Guy? Nobody knows, and for his own preservation he is maintaining a strict cloak of secrecy, but everyone in the crypto world knows what he stands for.

On a memorable day in July 2017, an anonymous man photo-bombed a US Congress hearing, appearing from behind a leading financial witness with a hand-written notice saying \'Buy Bitcoin.\' The footage rapidly went viral, and soon generated a gif image that became iconic for cryptocurrency supporters. Furthermore, some of those supporters put their money where their mouth was, and donated thousands of dollars in bitcoin to the Bitcoin Sign Guy.

Considered by some to be the most influential Blockchain personality of 2017 (he has continued to raise money for worthy crypto causes on the back of this exploit), Bitcoin Sign Guy is deemed to be a fitting hero for cryptocurrency supporters. He photo-bombed one of the world’s most powerful bankers in order to promote an independent, stateless digital currency, hijacking the spotlight from the Congress hearing – and making a tidy profit from his audacious action.

What\'s more, he brought Bitcoin to the world\'s attention in a way more surprising than even he could have bargained for, turning an impulse into an economic movement for many who want to overturn the world\'s prohibitive monetary policies.