Abstract: Methods and systems relating to a protocol for verification and enforcement of proper payment of a reward from a business (second entity) to a user (first entity) are shown. A reward can be earned by the user storing private information as encrypted data on the block chain or in a data store, such as IPFS, accessible by the business. Smart contracts running on a block chain operate to implement portions of the protocol while a local block chain node can run smart contracts in read-only mode to avoid placing private information, such as decryption keys, on the block chain. The protocol can be implementable over public storage and all artifacts of the protocol can be used later as proofs of proper behavior. The protocol defines incentives and penalties to motivate every player to act according to the rules, hence making the methods and systems operate as expected.

Abstract: A system includes a flow battery and a temperature control system. The flow battery is configured to thermally manage a thermal load. In some embodiments, the flow battery is also configured to electrically power the thermal load. The temperature control system is configured to cool electrolyte in the flow battery in response to the thermal load being inactive.