Blockchain is a shared, immutable ledger that allows the exchange of value and data between network participants. By having this ledger as a single source of truth, trust is built and time-wasting reconciliations of data are minimised. In this talk, I give a primer on blockchain technology with a focus on the Ethereum blockchain and its ecosystem of tools, followed by a demo of a blockchain-based web application for tracking vaccine recipients (e.g. COVID-19). The demo illustrates the use of the Ethereum blockchain to provide a single source of truth for vaccination records and how the different technology pieces fit together – the web application, the solidity smart contract and a local instance of an Ethereum blockchain network.
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DevConf 2023 videos are sponsored by Africonology
Find out more about them at https://www.africonology.co.za/
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About Julian
Julian is a software developer driven by a desire to advance society using tech, PhD Econ researcher at the University of Cape Town & winner of the Schmidt Futures Reimagine Challenge (Eric Schmidt).
– https://twitter.com/julzthevoice
– https://www.linkedin.com/in/juliankanjere/
– http://juliankanjere.com/