Swapnet

South Korean cryptocurrency exchange Bithumb is launching a P2P payment platform for social media including social networking sites and blogs. The exchange is also preparing to sell 12,500 kinds of mobile vouchers from 600 brands.

Folks not hampered by the pretense of central banking monopoly.   Sandbox is becoming widespread while remaining central bank neutral.   They use the term voucher to represent bearer asset in their swapnet. I like the term, an ownership contract. Note the time to market, about six months from theory to implementation.  
Sandbox defeating Walrus.