Blockchain data reveals that it pays to be the Bitcoin Sign Guy.

The bitcoin community was abuzz yesterday when, during an appearance before a Congressional committee by Federal Reserve chair Janet Yellen, an attendee held aloft a "buy bitcoin" sign. The image of the sign quickly went viral, though the attendee and his friend were ultimately asked to leave by a staffer.

Soon after his appearance, it emerged that the individual is a friend of a cryptocurrency trader who tweets under the handle CryptoEthan. He posted a picture of the person – soon known as the "Bitcoin Sign Guy" – who, in addition to holding up the now-infamous sign, shared a bitcoin address as well.

As of press time, that address has garnered 6.32570673 BTC, an amount worth just under $15,000 at current prices. While most of the transactions involved, numbering 556 according to Blockchain.info, were small in scale, one notable contribution was for 1 BTC.