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The sign and magnitude of the cross-stack effect are unknown; a control measured on another artifact, panel or stack is not a transferable correction. usable_as_floor is false.", "direction": "unknown", "estimated_magnitude": null, "floor_measurement_ref": null, "kind": "cross_stack_capture_replay" }, "class": "advisory", "key": "cmp--74d9ace60453b782", "key_inputs": { "accumulation_dtype": "float64", "direction": "reference_to_candidate", "head_policy": "native_head", "metric_name": "mean_tokenwise_kld", "note": "provisional; the registry recomputes with its reference record id (registry CMP-001)", "panel_id": "panel--qwen3-5-tiny.malaiwah.cpu-smoke-v1", "reference_id": "fidelity--qwen3-5.community-root", "stack_relation": "cross_stack" }, "same_lane": true, "usable_as_floor": false }, "comparator": { "accumulation_dtype": "float64", "bf16_reduced_precision_reduction": false, "cublas_workspace_config": null, "deterministic_algorithms": true, "device": "cpu", "estimator_backend": "torch:k6_kld_report._token_kld", "head_applied_candidate_tensor_content_sha256": "35f07c7802554cebdc0e791cebb8e0f975b285c72cf6e1f61b4b76295cbacdc1", "head_applied_reference_tensor_content_sha256": "35f07c7802554cebdc0e791cebb8e0f975b285c72cf6e1f61b4b76295cbacdc1", "head_applied_tensor_content_sha256": null, "logprob_dtype": "float64", "position_block": 128, "replay_backend": "numpy:cpu:float32", "replay_env": { "blas_configuration": "OpenBLAS 0.3.34.106.0 USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell MAX_THREADS=64", "blas_name": "scipy-openblas", "blas_threads": 2, "blas_threads_source": "ctypes:scipy_openblas_get_num_threads64_", "blas_version": "0.3.34.106.0", "cpu_model": "Intel(R) Xeon(R) Platinum 8375C CPU @ 2.90GHz", "library": "numpy", "numpy_version": "2.5.3", "replay_dtype": "float32" }, "replay_peak_device_bytes": null, "short_circuited": false, "source_file_hashes_verified": true, "tensor_content_digests_verified": true, "tf32": false, "tool": { "entrypoint": "bin/fidelity-dataset compare", "note": "the fp64 estimator is k6_kld_report._token_kld, imported not copied, whenever torch is importable; estimator_backend records which path ran." }, "two_pass": true, "vocab_chunk": 8192 }, "comparison_kind": "measurement", "context_depth_buckets": { "0000-0255": 2.396677663466941e-05 }, "created_utc": "2026-09-07T23:19:37Z", "determinism": { "cold_start_per_run": null, "distinct_evidence_hash_count": 2, "evidence_hashes": [ "43c1a6f3fc844637fc79df56aea54adc70e9d7638b0486bacd5fec7139adccf6", "a3671cfeeac24e5fa79fd0181ab31f3eeb6f9b757e801eb4a2faf3f2ffdf1462" ], "evidence_kind": "hidden_state_tensor_sha256", "identical_across_runs": null, "max_run_mean": 2.3966776634669407e-05, "min_run_mean": 2.3966776634669407e-05, "note": "one comparison of two sealed captures. identical_across_runs is null, not true: that claim needs two independently produced captures of the SAME weights (SC-2), which is a different receipt.", "population_stddev_of_run_means": 0.0, "run_count": 1, "run_means": [ 2.3966776634669407e-05 ] }, "disclosures": [ { "affects_comparability": false, "code": "native_head_replay", "detail": "HEAD-1d: each side replayed through its own sealed head (reference 35f07c780255, candidate 35f07c780255); head-weight differences are included, but replay arithmetic need not equal live/native head execution. The heads are content-identical.", "severity": "info" }, { "affects_comparability": true, "code": "cross_stack_capture", "detail": "capture stack equality is not established (lane_identity equal on both sides, or unrecorded, stack_fingerprint equal on both sides, or unrecorded, source_files differ or unrecorded). The cross-stack effect has unknown sign and magnitude.", "severity": "caveat" }, { "affects_comparability": true, "code": "weights_reconstructed", "detail": "candidate was captured from a WEIGHTS-ONLY RECONSTRUCTION (affine-weight-reconstruction, output bfloat16). The stored weights were decoded before the model forward; native quantized GEMM and serving activation arithmetic are not measured. Decoder provenance is in the sealed runtime receipt. The comparison is advisory.", "severity": "caveat" } ], "estimator": { "accumulation_dtype": "float64", "head_policy": "native_head", "hidden_dtype": "bf16", "logits_dtype": "float32", "softmax_note": "full-vocabulary log-softmax in float64; estimator_backend names the implementation. No truncation, top-k or clamp. 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