Setting up and using short term cahs

 My pedestrian district is the possible. One of the kids will mention it to the coffee shop owner.

What is short term cash? It is a the address of a short chain in which any merchant having a smart phone can register, and down load the app. The fix their 'tag' to Tower Cash. Then if any of the customers ask, Do you take short cash? The merchant says, Tower Cash is what we all use.  Regular customers automatically get onto tower Cash, and we save bundles, we drive every ATM machine out of this ares.

The merchant app is simple the miner code that checks the short term block chain for local traffic around the area. Does it right there in the merchant smart phone, down loads a copy of the latest master short chain as needed, but otherwise, the merchant is his own trusted miner, need only update the short chain to the extent  there is scofflaw fear in the air.

Sort of a tweeter system for short cash of any type. Once merchant get on the short cash, they would just as easily accept bitcoin or francs, as long as it has standard ledger protocol supported by short cash API. The merchants wouldn't care, their accountant or other adviser looked  at the exchange process and labeled them about as fair as possible. The contract are built into the short ledger and cannot be fold in proof of stake.