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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.
What you're describing sounds a lot like OTP https://github.com/mdp/rotp. It's a well known and standard way of issuing one time passwords (typically 6 digits that a user confirms by entering it in).
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