Abstract: Systems and methods for asynchronous API-driven external application services for blockchain are provided. The blockchain may store profile data that permits asynchronous communications and data sharing among a plurality of trusted users, and an application server layer may act as a gateway to a blockchain system to selectively provide limited access to external application services to operate upon the blockchain data.

Abstract: Apparatus for reconstituting citrus fruit juice concentrate with water and dispensing the reconstituted juice into a cup comprising a refrigeration chamber for holding a container of concentrate above its freezing temperature, and structure for continuous circulation of cold carbonated water through the chamber, the container having an outlet for the concentrate and an inlet for air under pressure for pressurizing the concentrate. The apparatus further comprises dispensing valve structure with a mixing nozzle, a first passage for the flow of concentrate to the nozzle, a second passage for the flow of water to the nozzle and structure for regulating the pressure of tap water supplied to the nozzle.