Abstract: A blockchain system for containing authority within a distributed consensual system includes a blockchain network of participating user devices. A participating user device, having a memory and a processor, is configured to create an account linking blockchain transaction to link a developer account with an external authority account of a user of the device. The user device is further configured to publish a recipe associated with the user's developer account, receive, from an external authority, a receipt indicating purchase of the recipe by another user connected to the distributed consensual system, create a recipe blockchain transaction including data identifying the recipe and the receipt, and broadcast the recipe blockchain transaction on the blockchain network. Upon validation, the user receives payment via one or more additional blockchain transactions.

Abstract: A system for simultaneous monitoring of a plurality of individuals including an individual physiological data logger (IPDL) for each individual for measuring and storing heart beat data, the IPDL including: an electro-cardiogram (ECG) measuring device for providing heart beat data, an extended memory for storing the measured heart beat data, a synchronization element, a micro-controller including a synchronization element controlling circuit, and RF transceiver apparatus; a central interface unit selectably couplable by radio telemetry communication to each IPDL for transmitting thereto a plurality of commands and for receiving therefrom the heart beat data; and a computer coupled to the central interface unit for providing commands for each IPDL, for performance of an individual bench test for deriving a conversion coefficient of heart beat cost per unit of mechanical work, and for monitoring and analyzing, in real time, the heart beat data of each of the plurality of individuals.