You can find deployed smart contract addresses here https://docs.dusa.io/deployment-addresses to test the scanner. Here is the repository of the DApp of the video https://github.com/Thykof/massa-fauxceeet you can build, deploy on buildnet, compress to zip and submit to verification. Join Massa here https://massa.net
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I will create a website, a smart contract and a backend to inspect a smart contract on the massa blockchain. The service will also allow to create the proof that the deployed bytecode correspond to a source code store into a zip accessible by the server backend.