# Two Eyes

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Davis Dey](https://cerebralvalley.ai/u/renhuang)
- **GitHub:** https://github.com/davissekai/two-eyes
- **Demo video:** https://youtu.be/jpobrX3SlkQ
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3004

Two Eyes — Your phone sees the muddy river. The satellite sees the scar upstream. Film a muddy river from a public spot: a bridge, a riverbank, a ferry landing. Two Eyes traces the river upstream, looks for new forest clearings in Sentinel-2 imagery (often galamsey, illegal gold mining, in Ghana), cross-checks them against independent datasets (HydroRIVERS/HydroBASINS drainage, RADD radar alerts, Hansen GFC, WRI drivers, WDPA), and returns a dated, anonymous evidence card you can share on WhatsApp. The card shows badges, never a probability, and its wording only goes as far as the agreeing checks allow ("Likely source of this mud, not proven"). Validation (frozen-cutoff test, 27 Oct 2026): a CERSGIS-measured 5.49 ha Atewa clearing was detected at 4.34 ha; intact-forest and cocoa-farm controls read 0.00 ha. Live demo: https://two-eyes-vert.vercel.app. Built by Davis Dey (solo).

## More from Meta Global AI Developer Hackathon

- [ENFPDEV](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3001)
- [ORCA by IssueLab](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3002)
- [Etoundi Ondoua Ngando Emmanuel Tresor](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3003)
- [Recognized](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3005)
- [DevRescue](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3006)
- [WHY_SO_CODE](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3007)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/3004. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt