To put it in a more abstract, general way: you can use it as network or transport layer for any kind of administrative act.

Think of the layered architecture of our current networks. All kinds of services can be built on top of such a viable service layer.


Obviously it should be combined with asymmetric cryptography, and the kinds of protocols which can be built with that. Handshakes and exchange of unique tokens. A bitcoin-like foundation can fill in here exactly what these protocols are lacking: a provable ordering of interactions.

The following example (just one of thousand possibilities) might underpin my point:

Anonymous insurance.
You pay and acquire insurance tokens in return.
Some incident happens, forcing you to draw on your insurance: now you contact a survey report service, which confirms the incident/damage and signs a sufficient amount of insurance tokens. These signed insurance+survey tokens now allow you to receive payment by a cooperating service. Note: none of the involved entities need to know and store the full disclosure of what happened


Bottom line: please don't try to build specific services.
Rather concentrate on creating an administrative transport layer on top of the bitcoin/sidechain network layer.

this will allow others to build peer-to-peer administrative facilities on top, without the need of central, controlling authorities.