{ "schema": "bethe.native-density-precision.v1", "cpu": "12th Gen Intel(R) Core(TM) i7-12700KF", "scope": "Exact small API commands and fixed order/cutoff grid; no omitted-tail or total-error bound.", "cases": [ { "name": "spectrum-fp64", "exit_code": 2, "command": [ "bethe-xxx-structure-factor-thermo", "--momentum", "1.57079632679489661923132169163975", "--sectors", "6", "--six-cutoff", "8", "--seed", "42", "--threads", "2", "--diagnostics", "--replicate-output", "--omega", "2", "--replicates", "3", "--samples", "8", "--precision", "fp64" ], "metadata": { "Arithmetic format": "binary64", "Bethe revision": "0b496a020694b0c15398c5bae8738d73114e23d4", "Bethe version": "0.1.0", "Build type": "Release", "CPU timing scope": "spectral grid including geometry and ordered output", "Channel": "zz", "Compiler": "GNU 13.3.0", "Date": "2026-10-31T12:39:41Z", "Density absolute tolerance": "0", "Density comparison bits": "24", "Density convention": "S(q,w); moments use dw/(2*pi); raising=2*zz", "Density guard bits": "53", "Density relative tolerance": "1e-6", "Exchange J": "1", "Family": "Partial DSF; 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moments use dw/(2*pi); raising=2*zz", "Density guard bits": "128", "Density relative tolerance": "1e-6", "Exchange J": "1", "Family": "Partial DSF; physical normalization; no fitted rescaling", "First density residue budget": "64", "First density tail order": "16", "Geometry and output bits": "128", "Hamiltonian": "H=J sum S_j.S_(j+1); infinite chain; zero field and temperature", "Maximum buffered detail rows": "100000", "Platform": "Linux x86_64", "Precision": "bits-128", "Program": "bethe-xxx-structure-factor-thermo", "Recovery seconds per configuration": "60", "Samples per replicate": "8", "Scheduler concurrency limit": "2", "Second density residue budget": "80", "Second density tail order": "20", "Selected spinon sectors": "6", "Six-spinon absolute rapidity cutoff": "8", "Six-spinon background weight": "0.5", "Six-spinon native soft fraction": "0.5", "Six-spinon one-pair center scale": "4", "Six-spinon one-pair gap scale": "0.5", "Six-spinon one-pair weight": "0.25", "Six-spinon replicates": "3", "Six-spinon seed": "42", "Six-spinon stream identities": "first_replicate=grid_index*replicates; 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