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For starters, you might look at the code of MMGen, a command-line wallet written in Python.
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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.
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That website covers everything you are looking for. You can use this one https://iancoleman.io/bitcoin-key-compression/ To check your results
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.