c3/checkpoint_identity.json

{
  "arm": "C3",
  "model_tag": "p4-c3-mix-d20",
  "filename": "p4-c3-mix-d20-model_000294.pt",
  "step": 294,
  "depth": 20,
  "checkpoint_sha256": "eef9a4e11c4840ac036d42c3bf4d87a2139ea1fa5809e1c756df2770fe0609f3",
  "bytes": 2663446486,
  "parent": "C0",
  "parent_sha256": "34e069646be4158979809c023691188439047d6cbee08a141db432c78bcf02e2",
  "stream": "c3_token_share_mix",
  "q_tl": 0.5,
  "c3_is_not_p3_b3": true,
  "only_tested_arm": true,
  "not_trainer_meta": true,
  "note": "Trainer meta_000294.json was not copied off the GPU host. Official BPB is evaluation/*.json, not in-loop val_bpb."
}