curl --request GET \
  --url https://api.io.solutions/v1/io-explorer/devices/{device_id}/pow-summary \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "device_id": "dca013fb-5ffa-4134-9b4d-8cb71f953d20",
    "last_challenge_status": "succeeded",
    "pow_jobs_failed": 0,
    "pow_jobs_passed": 0
  },
  "status": "succeeded"
}