STAY: Interactive Web App Lets Users Memorialize Real Dog Moments on Blockchain

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STAY is an interactive web experience created for a weekend development challenge that simulates the life of a dog named Milo from puppyhood to old age through a series of small, everyday choices. The project compresses a dog's entire lifespan into a few minutes, with Milo's behavior and movements evolving across multiple life stages as a counter tracks his remaining days. Once the simulation ends, users can preserve chosen in-game moments as cryptographic proofs on the Solana devnet blockchain. The experience then extends to real life, allowing users to upload a photo of their own dog, add a name, date, and note, and generate a verifiable blockchain attestation of that memory using local SHA-256 hashing. The developer intentionally made Solana central to the concept of permanence rather than treating it as an add-on, with the goal of ensuring a fleeting moment can leave a lasting, verifiable record.

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