[model]: document v10.5 checkpoint provenance

README.md

@@ -30,6 +30,7 @@ evaluation and UI integration, not a public release recommendation.
 ## Checkpoint identity
 
 - Training run: `20260823T132231Z-v10p5-datafree-sp4`
+- W&B: [a1etree2](https://wandb.ai/wlsaidhi/h3-dmd2-vsa/runs/a1etree2)
 - Step: 1300
 - Transformer content SHA-256: `b36987515e4c75fa4c7aaa632a7842c829ea141b235358a54d782b51230497b3`
 - Checkpoint metadata SHA-256: `dcad0fbee2a7c7e75e53435f4fd98fccf3138844883874edf057962ab48fa428`
@@ -86,6 +87,9 @@ runs the sparse DiT eagerly; regional compile is disabled for this snapshot.
 ## Limitations
 
 - Intermediate checkpoint at step 1300 of a planned 4000-step run.
+- This historical checkpoint predates the later strict continuous score-clock
+  and FastGen-alignment corrections. Use it to reproduce v10.5 results, not as
+  the reference implementation of the corrected training recipe.
 - T2AV only; the reference-conditioned transformer was not distilled here.
 - Quality remains below base MiniMax-H3 on difficult motion, fine structure,
   and some audio details.

provenance.json

@@ -0,0 +1,19 @@
+{
+  "schema_version": "fasth3-checkpoint-provenance-v1",
+  "model_id": "FastVideo/FastVideo-FastH3-4-step-v1",
+  "base_model": "hf://MiniMaxAI/MiniMax-H3@9bfb6693f2cf6de171db46d1aa586f67d773a1da",
+  "training_run_id": "20260823T132231Z-v10p5-datafree-sp4",
+  "wandb_url": "https://wandb.ai/wlsaidhi/h3-dmd2-vsa/runs/a1etree2",
+  "checkpoint_step": 1300,
+  "checkpoint_content_sha256": "b36987515e4c75fa4c7aaa632a7842c829ea141b235358a54d782b51230497b3",
+  "checkpoint_metadata_sha256": "dcad0fbee2a7c7e75e53435f4fd98fccf3138844883874edf057962ab48fa428",
+  "fastvideo_commit": "48a047c05ff4138f20cfa33351499c6ec5945f5d",
+  "student_tensor_count": 688,
+  "student_tensor_bytes": 70099502592,
+  "student_dtype": "bfloat16",
+  "dmd_denoising_steps": [999, 749, 500, 250],
+  "attention_backend": "VIDEO_SPARSE_ATTN_H3",
+  "vsa_tile_size": 64,
+  "vsa_sparsity": 0.9,
+  "known_recipe_deviation": "Predates strict continuous score-clock and later FastGen-alignment corrections."
+}