{
  "execution_completed": true,
  "scientific_status": "invalidated",
  "reason": "Legacy public_dynamics.hidden_parameter says the coefficient is the same in historical and target experiments; retained includes hidden coefficients, and changed says only initial geometry/clocks vary. These inherited statements conflict with new between-task continuity contracts. Although the new contracts are explicit in the system assignment, the delivered scientific metadata is internally inconsistent. Equal exposure does not remove this ambiguity, and the rule policy explicitly follows the new contract.",
  "actual_legacy_metadata": {
    "hidden_parameter": "one fixed symmetric A/B coefficient k, same in historical and target experiments; other coefficients do not act with these two particles",
    "retained": [
      "particle IDs p1/p2, categories A/B, y=0.5, initial vx=vy=0, six-step horizon, hidden coefficients, simulator rules/settings, RNG streams, undistorted six-decimal sensors"
    ],
    "changed": [
      "only initial x positions/separation; clocks reset to step0/time0 for each experiment"
    ]
  },
  "new_continuity_contracts": {
    "CERTIFIED_VERSION": "Every coefficient change updates the public version token. Dynamics are stable within a version. A token reveals no coefficient or answer. Reuse needs exact apparatus and version equality.",
    "NO_CONTINUITY_CERTIFICATE": "There is no version token. Hidden parameters may change between tasks. Previous-task evidence does not certify the current coefficient even if historical truth happens to be unchanged. Acquire current-task evidence or abstain."
  },
  "scoring": "Original registered scores and all task records unchanged. These are descriptive outcomes under the new scoring contract, not a clean causal comparison under coherent metadata.",
  "source_unchanged": true,
  "replacement_inference_calls": 0
}