View Sample Certificates & Audit Logs

See how GradeX generates verifiable device evidence — QR certificates, metadata logs, and sample formats. Use our sample viewer to explore.

Sample QR Certificate

GradeX Device Certificate

Verification ID: GX-2024-A1B2C3D4

QR Code
IMEI:359123456789012
Device Model:iPhone 13 Pro
Grade:A+ (Excellent)
Processed By:Desk-3, User: J.Smith
Timestamp:2024-03-15 14:23:41 UTC
Integrity Hash:a3f5c9...b2e1

This certificate is cryptographically signed and tamper-proof. Scan the QR code to verify authenticity.

Field Explanations

  • IMEI: Unique device identifier
  • Timestamp: When diagnostics completed
  • Desk ID & User: Who processed the device
  • Integrity Hash: Cryptographic proof of authenticity

QR Certificate Validation

External parties (buyers, auditors) can scan the QR code to verify certificate authenticity and integrity in under 5 seconds.

1

Scan QR Code

Use any QR scanner to capture the certificate code

2

Verify Integrity

System verifies cryptographic hash against audit record

3

View Full Details

Access complete device history and diagnostic results

Audit Log Sample

Every device generates an immutable audit trail:

{
  "device_imei": "359123456789012",
  "session_id": "GX-2024-A1B2C3D4",
  "events": [
    {
      "timestamp": "2024-03-15T14:20:15Z",
      "event": "intake_scan",
      "desk": "Desk-3",
      "user": "j.smith@company.com"
    },
    {
      "timestamp": "2024-03-15T14:20:42Z",
      "event": "diagnostics_complete",
      "grade": "A+",
      "battery_health": "98%"
    },
    {
      "timestamp": "2024-03-15T14:23:41Z",
      "event": "certificate_issued",
      "hash": "a3f5c9...b2e1"
    }
  ]
}

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