

DApps that need to provide dark (plausible denial over perfect network traffic analysis) comms to two correspondents that know nothing of each other but a hash.DApps that need to provide non-real-time hinting or general communications between each other.For example, a currency exchange DApp may use it to coordinate an offer prior to creating one (or two, depending on how the exchange is structured) transactions on the exchange. DApps that need to signal to each other in order to ultimately collaborate on a transaction.The offer wouldn’t be binding, merely a hint to get a potential deal started. In this case, it may last anything between tens of minutes and days. For example, a currency exchange DApp may use it to record an offer to sell some currency at a particular rate on an exchange. DApps that need to publish small amounts of information to each other and have the publication last some substantial amount of time.
