FA-11903 / Scientific pipeline provenance / Member archive

An aliquot is credited to its immediate tube instead of its specimen · case 03

An aliquot is credited to its immediate tube instead of its specimen.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

Return the root ID for an acyclic parent mapping; return cycle if a node repeats. Missing parent means a source root.

Why this case matters

A deterministic offline model of scientific workflow bookkeeping; the fixtures test provenance contracts without modeling instruments or biological inference.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
three preparation steps	`"b"`	`"specimen3"`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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