This is a submission for Weekend Challenge: Dog Days Edition TL;DR — A walker records the walk on their phone, the route is hashed in the browser, and a 147-byte attestation signed by the walker's own key lands on Solana devnet. The owner checks the trace they were handed against the chain, and ...
Source: [Dev.to](https://dev.to/arqamwd/your-dog-walker-says-they-went-this-makes-the-walk-say-so-too-29ai)