Private Blockchain Platforms With Smart Contracts

Opisana je povijest i razvoj blockchain tehnologije. Definirana je osnovna struktura i elementi blockchaina i objašnjen njegov način rada. Dana je definicija i primjer pametnog ugovora, kao i definicija i primjer non-fungible tokena. Nabrojani su tipovi blockchaina i njihove karakteristike i primjene. Spomenute su tri konkretne implementacije privatnih blockchaina za poslovne primjene, njihove prednosti i nedostaci. Dan je kratki opis jedne od implementacija. Priloženo je programsko rješenje u obliku aplikacije koja omogućuje interakciju s Hyperledger blockchainom.The history and development of blockchain technology is described. The basic structure, elements, and mechanisms behind blockchain are defined and explained. Smart contracts are defined, and some existing examples are given. Non-fungible tokens are defined, and theoretical examples are given. The different types of blockchain are listed, along with their specific characteristics and uses. Three specific implementations of private blockchains for commercial use and their advantages and disadvantages are outlined. A short description is provided for one of the implementations. A programming implementation of an application that interacts with the Hyperledger blockchain is attached