For example, a smart contract might withhold $100 from an account, and grant whoever owns the private key to that account access to open a lock. When the user is done using the resource (say, a shared car or apartment or locker), he can request his money back (minus a fee for using the resource) which would render him unable to use the resource anymore (i.e. open the lock).
Basically the equivalent of a credit card collateral on a rental, minus the credit card company.
Basically the equivalent of a credit card collateral on a rental, minus the credit card company.