{
  "sessionId": "mf-session-001",
  "jobId": "mf-demo-job-001",
  "receiptId": "mf-demo-receipt-001",
  "learnerId": "pilot-learner-anon-001",
  "exerciseId": "forge-demo-riff-001",
  "title": "Forge Demo Riff 001",
  "targetTempo": 96,
  "pitchScore": 86,
  "rhythmScore": 82,
  "clarityScore": 78,
  "timingScore": 84,
  "overallScore": 83,
  "xpAwarded": 160,
  "streakDays": 4,
  "creatorScore": 78,
  "nextLesson": "Single-string timing drill: 8th-note palm-muted E at 96 BPM, then add A/B transitions.",
  "privacyMode": "no raw audio retained",
  "rawAudioStored": false,
  "exportableForPilot": true,
  "evidenceLedgerHash": "mf-ledger-demo-20260613-001",
  "grantReadiness": "ED/IES Phase IA/IB reviewer-ready prototype evidence"
}