Provium

Typed artifacts with automatic provenance.

Provium helps you build processing workflows whose results explain where they came from. Store a result as an artifact, use that artifact as input to another step, and save the new outputs as artifacts of their own. Provium records those relationships automatically as your workflow runs.

Each processing step is represented by a versioned procedure. When a procedure reads existing artifacts and creates new ones, Provium links the outputs to the procedure and its inputs. That lineage travels with every result, including its full upstream history.

flowchart LR
    collect(["collect 1"])
    measurements["measurements.pa"]
    summarize(["summarize 1"])
    summary["summary.pa"]

    collect --> measurements
    measurements --> summarize
    summarize --> summary

Features

• Typed readers and writers for application-specific artifact formats
• Automatic input, output, and procedure lineage
• SHA-256 payload integrity checks
• Streaming, body-relative I/O
• Runtime artifact discovery through Python entry points
• Optional configuration snapshots, including Pydantic v2 models
• No required runtime dependencies

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