{"model":"PAYKX-v1.3.0","model_status":"production_ready","previous_version":"PAYKX-v1.2.0","change_summary":"Updated FX volatility weighting; improved historical failure rate signal accuracy for GB-NG corridor.","signals":7,"last_calibrated":"2026-07","schema":"ISO20022","go_threshold":0.8,"degraded_threshold":0.48,"corridor_support":["GB-NG","NG-GB"],"environment":"SANDBOX","data_type":"synthetic_validation_scenarios","no_real_funds":true}