FA-99678 / Chunk citation alignment / Member archive

A citation anchor is assigned to every overlapping chunk · case 03

A citation anchor is assigned to every overlapping chunk.

Member previewVariant 3 · 3 implementations · 6 checks per implementation

Case contract

Given chunks [start,end] and citation [s,e), return indices of chunks containing s, selecting the earliest only; chunk containment is start <= s < end.

Why this case matters

A deterministic citation bookkeeping model isolates source attribution from rendering and retrieval.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
overlap earliest	`[0, 1]`	`[0]`	Failed

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