{
  "timestamp_local": "2026-09-18 18:27:07 PT",
  "mechanism": "per_atom_alpha_local_copy_bias",
  "fix": "payload_produce: soft \u03b1-local pool + hard winner copy-bias (no mean-pool/global-hist); copy*4; chat merge-off; train MERGE 0.45",
  "train_steps": 10000,
  "checkpoint_step_before": 3498000,
  "checkpoint_step_after": 3508000,
  "logits_cos_before": 0.998791,
  "logits_cos_after": 0.998711,
  "alpha_cos_after": 0.709268,
  "atoms_chat_bonjour": 4,
  "chat_coherent_fr": false,
  "verdict": "STOP \u2014 unit green; probe logits still ~0.999 after 0 and +10k; chat still noise",
  "next_hypothesis": "Shrink or freeze-out the hard frozen \u03b1\u2192logit map so living-atom \u03b1-local payload copy is the primary surface under multi-atom merge-off ingest.",
  "checkpoint": "checkpoints/atom_native_alpha_local/atom_native.pt"
}