The second step was to develop an Ethereum Transaction Grabber that starting from ERC721 smart contracts ABI allowed us to decode related events in topics and retrieve the correct internal ones. Everything here using Node, Docker, Cassandra on Azure Cosmos, Kafka, Zookeeper.

Third a tool to analyze and export data using Cosmos, Blazor, C#, and so on.

In the middle we have also a python Ethereum-etl fork to collect new ERC721 Smart Contracts ABI to add to our lista Node implementations for data verifiertwo Node implementations for check and exports.

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