landing-copy-prooflisted

# Landing Copy: Proof This section's only job is to make an already-stated claim checkable. It doesn't introduce a new claim, and it doesn't explain how anything works — that's `landing-copy-mechanism`, already run. A proof section that's making its case for the first time here, rather than backing up a claim made earlier, is out of order. ## What this section answers One question: **why should the reader believe the mechanism section's claim is true, not just plausible?** Every sentence in this section exists to make one specific upstream claim checkable — a number, a name, a comparison, a quoted result. A proof section with no specific, attributable evidence isn't a proof section; it's an unearned assertion wearing this section's placement as false credibility. ## The algorithm Paragraph count from the beat count `landing-sequencer` assigned, but proof content is the one archetype most likely to be genuinely list-shaped — a set of parallel data points (3 stats, 3 logos, 3 quotes) reads better as a list than forced into prose. Decide the shape first: 1. **Single strong proof point** (1 case study, 1 headline stat) → prose, 1 paragraph: name the evidence, state the specific number or result, connect it back to the exact claim it's proving. 2. **Multiple parallel proof points** (3+ stats, logos, or quotes of equal weight) → a `-` list per `landing-copywriter`'s output format, each item a specific, named data point — not restated as full sentences if a shor