Privacy policy

// Controller

Michael Ochsner · hello@alpenriderchain.ch · see imprint.

// What we process

• Account: Email, Username, optional Telefonnummer (Notfall-Kontakt deiner gespeicherten Person).
• GPS-Daten: During rides, track points are stored for pass validation. After 30 days they are automatically anonymised (lat/lng rounded to 3 decimals).
• Stellar Wallet: Public key is stored in our DB. Private key stays exclusively on your device.
• Nostr Identity: Nostr public key (npub) is stored in the DB for NIP-58 badge awards. Private key stays on your device.
• Sensoren (optional): G-Force, Schräglage, Lichtsensor, Barometer — werden für Coaching/Statistik verarbeitet. SpeedShield Pro verschlüsselt Geschwindigkeitsdaten Ende-zu-Ende.
• Push-Token: Apple/Google Push-Token für ARC-Claims, RC-Conversion und Achievements.

// What we DO NOT do

• We do not sell or rent data — for any purpose.
• We do not run ad tracking (no Google Analytics, no Facebook pixels).
• We cannot recover your Stellar/Nostr private keys — they live exclusively on your device.

// What goes public on-chain

• Stellar Mainnet: ARC Token-Transfers, Soulbound-Token Mints, Soroban-Events. Bound to your public key — pseudonymous but publicly traceable.
• Nostr: NIP-58 Badge-Awards nur wenn du sie aktiv im Shop kaufst und mit deinem nsec Kind 30008 signierst. Replikation auf öffentliche Relays. Nicht löschbar.
• Hall of Fame: Anonymisierte Top-Sammler (kurzer Pubkey-Suffix). Optional ein Nickname falls du im Profil aktivierst.

// Your rights

Under DSG (CH) and GDPR (EU) you have the right to access, rectification, erasure, restriction, objection and data portability. Write to us at hello@alpenriderchain.ch. Account deletion in the app: Profile → Settings → Delete account.

// Third parties

• Stellar Horizon (horizon.stellar.org): Public blockchain — public keys + asset operations.
• Nostr Relays (strfry, damus, nos.lol): Public NIP-58 events.
• Hostpoint (Switzerland): Web hosting + MongoDB.
• Apple / Google: Push notifications + app distribution.