Lendingcalc.com and PUFIN have filed for a patent on a system that would use blockchain technology to give loans unique indentifiers, like CUSIPs; the system could help with greater market transparency; Lendingcalc.com and PUFIN have begun plans for implementing their system as an open source option for the industry; other firms have introduced this concept with a fee-based system however Lendingcalc.com and PUFIN are marketing their system as free with no fees. Source
