Today I bought arc42 by Example (ISBN-978-1-83921-435-6) (special offer). The authors give examples of their practical understanding of software architecture documentation. It is an excellent addition to the books by Dr. Gernot Starke and Stefan Zörner https://arc42.de.
Many people ask it, some Experts see it as the new golden hammer for all database tasks. Blockchain is a synonym of Distributed Ledger Technology (DLT). A DLT-System has three main components, the Ledger (Blockchain, technical a chained list), consensus algorithms, and distribution. Distribution makes it safe against manipulation; every participation holds one copy of the ledger.
[Read More]This Example implements a HapiJS Restful Services that register coordinations of stars. The services run on a NodeJs Services and use LevelDB to persist data. A simple massing Blockchain Services entirely in Javascript.
Star Notary Service allows you to create stars with coordinates in the Ethereum Blockchain to save. This application is a demo application, which the functionality of a DApp demonstrated. The functionality of Solidity and interaction with Javascript.
The application implements the Ethereum ERC-721 Token Standard as a Solidity Smart Contract. The web frontend uses Javascript. The application stores the start name, a description, and the coordinates (RA right ascension, mag absolute value, centaur).
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