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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I don't know a lot about wallets, but I did create a demo app that does the ABI encoding required to interact with smart contracts https://github.com/esaulpaugh/headlong-android
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