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App Attestations

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Verify Mobile Application Data with Cryptographic Proofs

App Attestations enable zero-knowledge verification of data from mobile applications. Mobile apps hold some of the most valuable verified data on the internet (rideshare ratings, fitness metrics, delivery history, streaming habits, financial app data), and App Attestations make this data provable without exposing it.

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How App Attestations Work

  1. App Data Access. The user's mobile device accesses the relevant data from a target application through authenticated API calls or secure enclave access.

  2. Attestation Generation. The attestation framework creates a cryptographic proof of the specific data point the user wants to verify. This proof is generated in a secure execution environment on the device.

  3. Claim Extraction. The proof extracts only the specific claim (e.g., "Strava weekly mileage above 20 miles") without including any other app data.

  4. On-Chain Verification. The attestation is submitted to XION and verified. A valid attestation creates an on-chain record.

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What Can Be Verified

Rideshare & Delivery

  • Driver/rider ratings on Uber, Lyft, DoorDash, etc.

  • Trip count and frequency

  • Account age and standing

  • Preferred destinations (category-level, not exact addresses)

Health & Fitness

  • Step counts and activity levels from health apps

  • Workout frequency and type from Peloton, Strava, etc.

  • Sleep patterns and duration ranges

  • Calorie tracking adherence

Streaming & Entertainment

  • Watch history patterns (genres, frequency) from Netflix, Spotify, etc.

  • Subscription tier and duration

  • Listening habits and preferences

  • Content creation metrics

Finance & Banking

  • Banking app balance ranges

  • Transaction frequency patterns

  • Investment app usage and account type

  • Payment app transaction history

Social & Communication

  • Messaging app activity levels

  • Social media engagement metrics

  • Community membership and participation

  • Account age and verification status

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Security Model

  • Secure execution. Proofs are generated within the device's secure enclave or trusted execution environment.

  • App-authenticated data. The attestation verifies data from authenticated API sessions, not user-provided screenshots or manually entered values.

  • Minimal disclosure. Only the specific claim is included in the proof. No app credentials, full data sets, or account identifiers are exposed.

  • Device binding. Attestations are bound to the user's device and XION account, preventing proof transfer or replay.

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