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immudb
immudb - immutable database based on zero trust, SQL/Key-Value/Document model, tamperproof, data change history
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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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cas
Discontinued Codenotary Community Attestation Service (CAS) for notarization and authentication of digital artifacts (by codenotary)
the service is built using 3 open source projects: immudb to store all data immutable (including auditors to detect physical tampering): https://github.com/codenotary/immudb
and to keep all DoS free and avoid misuse, there is traefik in front:https://github.com/traefik/traefik
vcn, the command line tool to calculate and send data hashes as well as verifying the cryptographic proof: https://github.com/vchain-us/vcn