App config
Global static config.json that the offline redemption App fetches online.
How to fetch
Fixed URL: https://idnwallet.com/config.json
Fetch when the App starts or before redemption; refresh periodically.
Usage
config.json supplies public parameters for offline redemption (e.g. validity window, time skew).
The App should only fetch this file — no redemption log upload; verification runs locally.
App constraints
- App fetches config.json online only
- Verification runs locally in the App
- No merchant portal or other business APIs
Security
Always fetch config.json from the official domain; do not use third-party mirrors.
After key rotation, refresh config in the App home screen.