Know that many also were in a dilemmawhen paper money displaced gold,"  Goldman Sachs CEO, Blankfein commented on Tuesday

His note follows a WSJ report that the investment bank was researching a new trading operation dedicated to bitcoin and other cryptocurrencies in response to traders demand

The plan was in early stages and may not proceed, the  article added, citing experts familiar with the matter.

Blankfein’ comment is in big contrast to comments made by JPMorgan’s CEO,  Jamie Dimon, who called bitcoin a "fraud".

Speaking at a bank investor conference in New York last month, Dimon said, "The currency isn’t going to work. You can’t have a business where people can invent a currency out of thin air and think that people who are buying it are really smart."

It is worse than tulips bulbs," Dimon declared, referring to a well known fiancial bubble from the 1600s.