Viewing buffer 051: fixed-endpoint tail and verified source cache

Run 051: buffer implementation, original base initialization, two native Qwen3-8B blocks plus final norm trained for exactly 1,024 updates; fixed output head. Source 1b0a0c0.

The tail is not a standalone model; install on the pinned base b968826d9c46dd6066d109eabc6255188de91218. All 384 cached prompt pairs were independently checked against tensor fingerprints, exact data and tokenizer inputs. SHA256SUMS covers every uploaded scientific artifact.

Full raw scores, calibration limitations, cache-equality audit and reproducibility details: https://github.com/SauersML/watching/tree/main/results/viewing-learning-051-052

Identity materialization is not a read-only observer. Historical test prompts were previously inspected; this is one seed/compilation per arm, not a new confirmatory benchmark.