# Concept note — The Blood Test That Reads How DNA Broke

## Creative approach

The image turns DELFI into an invented mechanical fragmentation spectrometer: a dense, Victorian-style measuring apparatus that physically sorts DNA fragments and records their size distribution. The machine is a visual metaphor, while every scientific claim printed on the plate comes directly from the task brief.

The focal comparison is the paper trace at center-right. Its left half shows a tidy repeating **healthy 167 bp rhythm**; its right half breaks into a **ragged cancer spread**. A single horizontal fragment-size axis makes clear that the instrument is reading the pattern of DNA breakage, not the DNA sequence.

## Visual system

- Square, flat technical-plate composition suitable for a social editorial still.
- Restricted ox-blood red, aged cream, and near-black palette.
- Screen-print grain and dried-ink texture rather than clinical white-and-blue imagery.
- One headline and five functional labels: DELFI; Healthy: 167 bp Rhythm; Cancer: Ragged Spread; Fragment Size; Not DNA Sequence.
- No patients, hospital scenes, decorative double helix, glowing interface, code, journal branding, or diagnostic-performance percentages.

## Generation disclosure

The hero image was created with **OpenAI GPT Image (built-in image generation tool)** from an original prompt written for this bounty. The final submission was visually reviewed at full resolution; no factual performance claims were added.