{
  "package_slug": "rewarded_observation_16_cylinder_volume",
  "title": "Rewarded Observation 16: Cylinder Volume",
  "observation_id": "obs_03-13_16-14-47-434004",
  "rewarded_observation_sequence_index": 16,
  "rewarded_observation_count": 32,
  "summary": "A tutor prompt about the volume of a cylinder in cubic meters promotes a version that adds `cylinder_volume_m3`.",
  "observed_change": "The latest version fails because `cylinder_volume_m3` is undefined. The promoted version returns `0.001571` cubic meters.",
  "knowledge_change_summary": "This update adds `import math` and defines `cylinder_volume_m3` with non-negative radius and height checks.",
  "context": "A cylinder has a radius of 0.05 meters and a height of 0.20 meters. What is its volume in cubic meters, rounded to 6 decimal places? Reply exactly: The volume is <value> cubic meters.",
  "latest_version_id": "03-13T15-48-25-648687",
  "promoted_version_id": "03-13T16-01-10-289415",
  "latest_output": "Error: Computation failed: name 'cylinder_volume_m3' is not defined",
  "updated_output": 0.001571,
  "sensor_data": [
    "The volume is 0.001571 cubic meters."
  ],
  "reward_metrics": {
    "rewarded_definitions": 551,
    "direct_rewarded_tokens": 85395,
    "distributed_total": 0.9999999999999969
  },
  "knowledge_versions": {
    "latest_before": {
      "version_id": "03-13T15-48-25-648687",
      "parent_version_id": "03-13T15-05-45-692438",
      "description": "Auto-branched for insert_node operation",
      "created_at": "03-13T15-48-25-648687",
      "last_modified": null,
      "edit_count": 2,
      "status": "historical",
      "index": null,
      "promotion_info": {
        "observation_def_id": "obs_03-13_15-51-59-572413",
        "promoted_at": "03-13T15-53-24-650744"
      },
      "historical_context": {
        "made_historical_at": "03-13T16-15-40-476933",
        "made_historical_by": "obs_03-13_16-14-47-434004",
        "former_status": "latest",
        "former_index": 0,
        "parent_latest_version": "03-13T15-48-25-648687",
        "sibling_versions": []
      },
      "dropped_obs": []
    },
    "promoted_after": {
      "version_id": "03-13T16-01-10-289415",
      "parent_version_id": "03-13T15-48-25-648687",
      "description": "Auto-branched for insert_node operation",
      "created_at": "03-13T16-01-10-289415",
      "last_modified": null,
      "edit_count": 4,
      "status": "historical",
      "index": null,
      "promotion_info": {
        "observation_def_id": "obs_03-13_16-14-47-434004",
        "promoted_at": "03-13T16-15-40-476933"
      },
      "historical_context": {
        "made_historical_at": "03-13T16-24-58-064112",
        "made_historical_by": "obs_03-13_16-23-15-419583",
        "former_status": "latest",
        "former_index": 0,
        "parent_latest_version": "03-13T16-01-10-289415",
        "sibling_versions": []
      },
      "dropped_obs": []
    }
  },
  "files": {
    "observation_and_reward": {
      "ancestry_graph.json": "Archived ancestry graph for this observation, including node-level reward attribution and lineage.",
      "iterative_payout_trace.json.gz": "Gzip-compressed original recursive payout trace for this observation, including per-root payout steps, interface transfers, absorbing-group payouts, and terminal llm_output weights. This observation has 2805 payout steps and 551 terminal absorbing definitions.",
      "obs_03-13_16-14-47-434004.json": "Full observation record including prompt context, latest vs updated outputs, reward state, and loss evaluation.",
      "reward_root_slice.svg": "Legacy rewarded-root slice SVG for this observation."
    },
    "knowledge_files": {
      "change.diff": "Unified diff between the latest pre-observation version and the promoted version.",
      "kf_03-13T15-48-25-648687.py": "Latest knowledge version immediately before this observation.",
      "kf_03-13T16-01-10-289415.py": "Promoted knowledge version produced by this observation.",
      "versions.json": "Full knowledge version ledger."
    }
  }
}