| # 06 — Cosmos CV4x8x8 encoder verification | |
| Same tests as `02` + `03`, but with Cosmos CV4x8x8 (encoder JIT from | |
| `nvidia/Cosmos-0.1-Tokenizer-CV4x8x8`). | |
| - **A_synthetic_input_bias**: gray-192 max/mean ratio = **1.6×** (VideoVAE+ | |
| base was 4.5×). Right-bottom hotspot much weaker. | |
| - **C_temporal_identity_***: for each stream, encode 16 identical raw frames | |
| → 5 Cosmos latent frames. **All 5 frames identical to 4 decimal digits** | |
| (drift mean = 0.0000, bf16 precision noise). Perfect causal identity. | |
| **Verifies Cosmos is strictly causal** and has no temporal boundary bleed | |
| architectural artifact. | |