{
  "schema_version": "1.0.0",
  "session_id": "20260711_005336_1817813b",
  "dataset_name": "Physical AI field capture",
  "campaign_id": "QRPAI-001",
  "protocol_id": "PROTO-001",
  "contributor_code": "P-001",
  "known_activity": "pocket_movement",
  "custom_activity": "",
  "task_outcome": "unknown",
  "environment": "interior",
  "surface": "necunoscuta",
  "equipment": "telefon purtat",
  "conditions": "",
  "notes": "",
  "started_at_epoch_ms": 1783731216220,
  "ended_at_epoch_ms": 1783733273408,
  "duration_ms": 2057188,
  "timezone_id": "Europe\/London",
  "timezone_offset_minutes": 60,
  "locale": "en-GB",
  "record_count": 65640,
  "data_part_count": 1,
  "integrity_block_count": 17,
  "integrity_chain_head_sha256": "c53820d3d1fe0a8f20dfd27ed6122c6164330936a353600b188e4f299e99bddf",
  "integrity_block_size_records": 4096,
  "dropped_event_count": 0,
  "requested_sampling_mode": "SENSOR_DELAY_FASTEST_no_batching",
  "storage_profile": "compact_primary_sensors_float32_v1",
  "numeric_encoding": "Shortest decimal representation that round-trips to source Float32; location remains Float64",
  "calibration_window_ms": 5000,
  "video_enabled": false,
  "video_file": null,
  "location_enabled": false,
  "privacy_note": "Location is opt-in. No name, email, advertising ID, serial number, microphone audio or account data is collected.",
  "consent_granted": true,
  "consent_text_version": "QRPAI-CONSENT-1.0",
  "consent_recorded_at_epoch_ms": 1783731216220,
  "device_manufacturer": "HONOR",
  "device_model": "MBH-N49",
  "device_product": "MBH-N49EEA",
  "device_hardware": "qcom",
  "android_release": "16",
  "android_sdk": 36,
  "app_version": "1.3.0",
  "sensor_descriptors": [
    {
      "type": 1,
      "key": "accelerometer",
      "name": "lsm6dso Accelerometer Non-wakeup",
      "vendor": "STMicro",
      "version": 143119,
      "resolution": 0.0047856453,
      "maximum_range": 156.9064,
      "minimum_delay_us": 2404,
      "maximum_delay_us": 1000000,
      "power_ma": 0.17,
      "reporting_mode": 0,
      "wake_up": false
    },
    {
      "type": 16,
      "key": "gyroscope_uncalibrated",
      "name": "lsm6dso Gyroscope-Uncalibrated Non-wakeup",
      "vendor": "STMicro",
      "version": 143119,
      "resolution": 0.0012217296,
      "maximum_range": 34.906036,
      "minimum_delay_us": 2404,
      "maximum_delay_us": 1000000,
      "power_ma": 0.55,
      "reporting_mode": 0,
      "wake_up": false
    },
    {
      "type": 14,
      "key": "magnetometer_uncalibrated",
      "name": "mmc56x3x Magnetometer_Uncalibrated Non-wakeup",
      "vendor": "memsic",
      "version": 10000,
      "resolution": 0.0976,
      "maximum_range": 3000.0288,
      "minimum_delay_us": 10000,
      "maximum_delay_us": 1000000,
      "power_ma": 1,
      "reporting_mode": 0,
      "wake_up": false
    },
    {
      "type": 11,
      "key": "rotation_vector",
      "name": "FUSION Rotation Vector  Non-wakeup",
      "vendor": "akm",
      "version": 1289,
      "resolution": 0.01,
      "maximum_range": 1,
      "minimum_delay_us": 10000,
      "maximum_delay_us": 10000,
      "power_ma": 0.001,
      "reporting_mode": 0,
      "wake_up": false
    },
    {
      "type": 5,
      "key": "light",
      "name": "TCS3720_1ALSPRX Ambient Light Sensor Non-wakeup",
      "vendor": "ams AG",
      "version": 66048,
      "resolution": 1,
      "maximum_range": 20000,
      "minimum_delay_us": 0,
      "maximum_delay_us": 0,
      "power_ma": 0.38,
      "reporting_mode": 1,
      "wake_up": false
    },
    {
      "type": 8,
      "key": "proximity",
      "name": "TCS3720_1ALSPRX Proximity Sensor Wakeup",
      "vendor": "ams AG",
      "version": 66048,
      "resolution": 1,
      "maximum_range": 5,
      "minimum_delay_us": 0,
      "maximum_delay_us": 0,
      "power_ma": 0.625,
      "reporting_mode": 1,
      "wake_up": true
    },
    {
      "type": 6,
      "key": "pressure",
      "name": "goertek_spl07 Pressure Sensor Non-wakeup",
      "vendor": "Goertek",
      "version": 4864,
      "resolution": 0.01,
      "maximum_range": 1100,
      "minimum_delay_us": 31250,
      "maximum_delay_us": 1000000,
      "power_ma": 0.006,
      "reporting_mode": 0,
      "wake_up": false
    }
  ],
  "measured_sensor_statistics": {
    "accelerometer": {
      "count": 35836,
      "measured_hz": 17.320687755108374,
      "mean_period_ns": 5.778441590763602E7,
      "jitter_std_ns": 5.188229110616742E9,
      "min_period_ns": 2411407,
      "max_period_ns": 981625813291,
      "timestamp_regressions": 31,
      "unreliable_accuracy_count": 0
    },
    "battery": {
      "count": 2,
      "measured_hz": 0.001607513822087096,
      "mean_period_ns": 622078632395,
      "jitter_std_ns": 0,
      "min_period_ns": 622078632395,
      "max_period_ns": 622078632395,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "gyroscope_uncalibrated": {
      "count": 18869,
      "measured_hz": 9.165734460244325,
      "mean_period_ns": 1.0910200424607801E8,
      "jitter_std_ns": 1.0515934032083027E10,
      "min_period_ns": 2411355,
      "max_period_ns": 1387464175938,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "light": {
      "count": 135,
      "measured_hz": 0.06482308493632259,
      "mean_period_ns": 1.542660305325373E10,
      "jitter_std_ns": 1.2408390582399005E11,
      "min_period_ns": 209457865,
      "max_period_ns": 1389880701303,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "magnetometer_uncalibrated": {
      "count": 4583,
      "measured_hz": 2.225873793602375,
      "mean_period_ns": 4.492617698605412E8,
      "jitter_std_ns": 2.133636936273893E10,
      "min_period_ns": 10000000,
      "max_period_ns": 1387489864584,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "pressure": {
      "count": 1548,
      "measured_hz": 0.7515814449804272,
      "mean_period_ns": 1.3305277913374274E9,
      "jitter_std_ns": 3.6297856225195114E10,
      "min_period_ns": 31030938,
      "max_period_ns": 1387482971875,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "proximity": {
      "count": 65,
      "measured_hz": 0.031230206644233833,
      "mean_period_ns": 3.20202812421875E10,
      "jitter_std_ns": 1.7731487624787906E11,
      "min_period_ns": 52996406,
      "max_period_ns": 1381603992813,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "rotation_vector": {
      "count": 4600,
      "measured_hz": 2.234147785081482,
      "mean_period_ns": 4.4759796405479455E8,
      "jitter_std_ns": 2.1298097011051964E10,
      "min_period_ns": 1327083,
      "max_period_ns": 1387569946719,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    },
    "user_annotation": {
      "count": 2,
      "measured_hz": 4.8610518629781644E-4,
      "mean_period_ns": 2057167930291,
      "jitter_std_ns": 0,
      "min_period_ns": 2057167930291,
      "max_period_ns": 2057167930291,
      "timestamp_regressions": 0,
      "unreliable_accuracy_count": 0
    }
  },
  "initial_calibration_statistics": {
    "accelerometer": {
      "count": 2138,
      "mean": [
        -0.7648618971879466,
        7.802008074811957,
        5.929200463951802
      ],
      "standard_deviation": [
        0.6421546501325623,
        1.1383099466862927,
        1.1554819889711003
      ]
    }
  }
}