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Provenance

The write-time record: run, stage and source artifact.

Field Meaning
run id the pipeline run that made the write
stage build, commit, commit:rollup, …
source artifact id(s) the recover output the object was compiled from

Read it with ekos ledger audit <id> or the ekos_audit tool: every version, oldest first. Entries written before this existed have no provenance and are reported as such.

Storage: SQLite ledgers keep provenance as columns on each entry; the fact engine keeps it in a provenance.jsonl sidecar.