{
  "schema": "canonical_supply_metric_contract.v1",
  "contract": {
    "commodity": "copper",
    "universe": "industry",
    "metric_family": "production",
    "metric": "copper_segment_production_t",
    "source": "standardized/supply_aggregate_timeseries.csv"
  },
  "registered_supply_expectations_source": "copper_consensus_dashboard.png"
}