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Main repository of a graduate student project, consisting of a simple blockchain application for selling train tickets. Based mainly on Solidity smart contracts and Flask, combined with web3.py and a MongoDB NoSQL database.
Decentralized voting system built with Ethereum smart contracts, a Python CLI, and Dockerized deployment. It allows creating proposals, casting anonymous votes, closing proposals, and querying results, with automated testing on a local blockchain using Truffle and Ganache.
A user-friendly Onino-powered marketplace for buying and selling vehicles with built-in escrow, dispute resolution, and transparent on-chain transaction flow.