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 **Blockchain-backed product authentication.** Mint a digital twin for every product, log each handoff on the supply chain, and let anyone scan to prove it's real.
 
-**[Open the live app](https://authen-tick-web.vercel.app)** · [Docs](https://authen-tick-web.vercel.app/docs) · [Architecture](docs/ARCHITECTURE.md)
+**[Open the live app](https://authen-tick-web.vercel.app)** · [Docs](https://authen-tick-web.vercel.app/docs) · [Architecture](docs/ARCHITECTURE.md) · [Presentation (PDF)](docs/AuthenTick-presentation.pdf)
 
 > No backend or wallet needed to try it. On the Verify page, paste the demo token `0xde70a11ce0000001` into the search bar and step the item from factory to shopper.
 
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