Abstract: A method, apparatus and system for automated verification of a smart contract on a blockchain include translating operating properties of a smart contract annotated with contract specifications at a source code level into verification conditions in an intermediate verification language, discharging the verification conditions using an SMT solver, and reporting results of the discharged verification conditions, such as successes and failures of the discharged verification conditions. The translating can include mapping statements of the smart contract to statements of the intermediate verification language and mapping expressions of the smart contract to expressions of the intermediate verification language.

Abstract: A holder for jewelry items and watches that includes illumination and upwardly mounted support member for storing and displaying these items. A base with a flat surface is provided to provide structural integrity to the structure while at the same time houses the batteries and/or wires that provide the electrical energy to the holder's illuminating device. A horizontal support member is disposed so that it includes a bend where the watches' straps are positioned thereby securing them in place. Also, a hook member is rigidly mounted to the underside of the horizontal member so that other jewelry items can be suspended from it. One or more frustoconical members are rigidly mounted to the vertical support members thereby providing the member for receiving and holding in place rings and other cooperating jewelry items.