ProofLog

• Expo SDK 54
• React Native 0.81
• Expo Router
• Zustand
• TanStack Query
• Clerk Auth
• Next.js (API)
• Prisma
• PostgreSQL
• AWS S3
• Reanimated

Tamper-proof, location-verified records of real-world activity. Captured on your phone, signed on the server, shareable as a link or a PDF. You start a session and capture evidence (photos, video, notes, GPS checkpoints). Every item is stamped with time and location, and the server then seals it with a SHA-256 integrity hash. Built offline-first, so every action is instant and works with no signal.

Integrity hashes can help detect changes to sealed records; they do not independently prove the truth of captured content or establish legal admissibility.