In September, 13 of the world’s leading banks joined a project to explore the possibilities behind using a type of distributed ledger in the mainstream financial world. Institutions like Bank of America, Citi and Deutsche Bank joined others like Goldman Sachs and J.P. Morgan which had already signed up. For many, it’s the ledger that shows the real promise while the cryptocurrency itself is seen by some as having more of a shelf life. Aside from financials, the public ledger has a host of other useful applications. Pantera Capital in the U.S. is investing in a firm that is using the technology to help detect counterfeiting in the luxury goods industry. Simon Derrick, chief currency strategist at BNY Mellon, told CNBC via email Tuesday that he suspects the interesting part to the bitcoin story will be the underlying technology and whether it facilitates the introduction of truly digital currencies.