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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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cas
Discontinued Codenotary Community Attestation Service (CAS) for notarization and authentication of digital artifacts (by codenotary)
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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.
Trusted timestamping is the process of securely keeping track of the creation and modification time of a document. Security here means that no one—not even the owner of the document—should be able to change it once it has been recorded provided that the timestamper's integrity is never compromised. CodeNotary uses its immutable open source database immudb to provide this service that includes cryptographic verification and immutable data history.
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