Dataset

PepSpecBench E. coli OOD subsets (both sources aggregated)

E. coli OOD spectra from PXD014877 and PXD027742, aggregated in Table 4.

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24 evaluations · 24 results. Different protocols are not a single leaderboard.

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Claims, original sources and review scope · Release 2026-10-23-5347695500ed
Property and statement	Original source and location	Review and provenance
Source location Table 1; Appendix C.1 and C.6 Context-only references	PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction Original source ↗ Table 1; Appendix C.1 and C.6 Version: arXiv:2605.01945v1 (submitted 2026-05-03), arXiv HTML rendering Retrieved: 2026-10-11T21:27:08Z	not individually reviewed No individual claim review recorded Audit details Field: `attributes.source_locator` Source artifact SHA-256: `af7ed6d4470f0d4f60fccbe55103e72b19c258e53f9dd26c0c0e152a2ef18d81` Hash scope: Hash scope not separately documented; inspect source record Inspected artifact
Split Out-of-distribution evaluation (zero-shot) Context-only references	PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction Original source ↗ Table 1; Appendix C.1 and C.6 Version: arXiv:2605.01945v1 (submitted 2026-05-03), arXiv HTML rendering Retrieved: 2026-10-11T21:27:08Z	not individually reviewed No individual claim review recorded Audit details Field: `attributes.split` Source artifact SHA-256: `af7ed6d4470f0d4f60fccbe55103e72b19c258e53f9dd26c0c0e152a2ef18d81` Hash scope: Hash scope not separately documented; inspect source record Inspected artifact
Version PepSpecBench v1 Context-only references	PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction Original source ↗ Table 1; Appendix C.1 and C.6 Version: arXiv:2605.01945v1 (submitted 2026-05-03), arXiv HTML rendering Retrieved: 2026-10-11T21:27:08Z	not individually reviewed No individual claim review recorded Audit details Field: `attributes.version` Source artifact SHA-256: `af7ed6d4470f0d4f60fccbe55103e72b19c258e53f9dd26c0c0e152a2ef18d81` Hash scope: Hash scope not separately documented; inspect source record Inspected artifact
Description E. coli OOD spectra from PXD014877 and PXD027742, aggregated in Table 4. Context-only references	PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction Original source ↗ Table 1; Appendix C.1 and C.6 Version: arXiv:2605.01945v1 (submitted 2026-05-03), arXiv HTML rendering Retrieved: 2026-10-11T21:27:08Z	not individually reviewed No individual claim review recorded Audit details Field: `description` Source artifact SHA-256: `af7ed6d4470f0d4f60fccbe55103e72b19c258e53f9dd26c0c0e152a2ef18d81` Hash scope: Hash scope not separately documented; inspect source record Inspected artifact
Name PepSpecBench E. coli OOD subsets (both sources aggregated) Context-only references	PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction Original source ↗ Table 1; Appendix C.1 and C.6 Version: arXiv:2605.01945v1 (submitted 2026-05-03), arXiv HTML rendering Retrieved: 2026-10-11T21:27:08Z	not individually reviewed No individual claim review recorded Audit details Field: `name` Source artifact SHA-256: `af7ed6d4470f0d4f60fccbe55103e72b19c258e53f9dd26c0c0e152a2ef18d81` Hash scope: Hash scope not separately documented; inspect source record Inspected artifact

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Release 2026-10-23-5347695500ed · Record review: source checked

1 source record and release history

PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Original source · arXiv:2605.01945v1 (submitted 2026-05-03), arXiv HTML rendering

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Technical metadata and extraction receipts

Stable ID: lit-otheromics-20261011-pepspecbench-data-e-coli

areas: proteins-complexes
contexts: research
version: PepSpecBench v1
split: Out-of-distribution evaluation (zero-shot)
source locator: Table 1; Appendix C.1 and C.6

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Exact evaluated configurations and original reported results
Tested configuration	Protocol and dataset	Finding	Evidence and details
Configuration: AlphaPeptDeep retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.473 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source AlphaPeptDeep (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'AlphaPep.', column 'E. coli' (first value of SA / SAS)
Configuration: AlphaPeptDeep retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.527 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source AlphaPeptDeep (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'AlphaPep.', column 'E. coli' (second value of SA / SAS)
Configuration: AlphaPeptDeep retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.312 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source AlphaPeptDeep (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'AlphaPep.', column 'E. coli' (first value of SA / SAS)
Configuration: AlphaPeptDeep retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.688 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source AlphaPeptDeep (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'AlphaPep.', column 'E. coli' (second value of SA / SAS)
Configuration: FastSpel retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.465 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source FastSpel (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'FastSpel', column 'E. coli' (first value of SA / SAS)
Configuration: FastSpel retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.535 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source FastSpel (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'FastSpel', column 'E. coli' (second value of SA / SAS)
Configuration: FastSpel retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.369 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source FastSpel (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'FastSpel', column 'E. coli' (first value of SA / SAS)
Configuration: FastSpel retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.631 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source FastSpel (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'FastSpel', column 'E. coli' (second value of SA / SAS)
Configuration: PredFull retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.238 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source PredFull (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'PredFull', column 'E. coli' (first value of SA / SAS)
Configuration: PredFull retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.762 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source PredFull (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'PredFull', column 'E. coli' (second value of SA / SAS)
Configuration: PredFull retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.236 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source PredFull (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'PredFull', column 'E. coli' (first value of SA / SAS)
Configuration: PredFull retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.764 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source PredFull (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'PredFull', column 'E. coli' (second value of SA / SAS)
Configuration: Prosit retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.476 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'Prosit', column 'E. coli' (first value of SA / SAS)
Configuration: Prosit retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.524 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'Prosit', column 'E. coli' (second value of SA / SAS)
Configuration: Prosit retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.286 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'Prosit', column 'E. coli' (first value of SA / SAS)
Configuration: Prosit retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.714 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'Prosit', column 'E. coli' (second value of SA / SAS)
Configuration: Prosit Transformer retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.48 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit Transformer (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'Prosit Tran.', column 'E. coli' (first value of SA / SAS)
Configuration: Prosit Transformer retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.52 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit Transformer (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'Prosit Tran.', column 'E. coli' (second value of SA / SAS)
Configuration: Prosit Transformer retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.298 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit Transformer (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'Prosit Tran.', column 'E. coli' (first value of SA / SAS)
Configuration: Prosit Transformer retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.702 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source Prosit Transformer (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'Prosit Tran.', column 'E. coli' (second value of SA / SAS)
Configuration: UniSpec retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.388 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source UniSpec (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'UniSpec', column 'E. coli' (first value of SA / SAS)
Configuration: UniSpec retrained on MassIVE-KB (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.612 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source UniSpec (trained on MassIVE-KB) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'MassIVE-KB Trained', row 'UniSpec', column 'E. coli' (second value of SA / SAS)
Configuration: UniSpec retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SA Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.299 Spectral angle (median over spectra, shared canonical fragment space) unitless · lower Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source UniSpec (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SA lit-otheromics-20261011-pepspecbench-protocol-e-coli-sa Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'UniSpec', column 'E. coli' (first value of SA / SAS)
Configuration: UniSpec retrained on PROSPECT (PepSpecBench)	Protocol: PepSpecBench E. coli OOD subsets (both sources aggregated), median SAS Dataset: PepSpecBench E. coli OOD subsets (both sources aggregated)	0.701 Spectral angle similarity (median over spectra, shared canonical fragment space) unitless · higher Uncertainty: Not reported by the source Coverage: Not reported scored / Not reported eligible	Independent external evaluation · Source checked Methods, coverage and source UniSpec (trained on PROSPECT) on E. coli OOD subsets (both sources aggregated), SAS lit-otheromics-20261011-pepspecbench-protocol-e-coli-sas Aggregation: Not reported PepSpecBench: A Unified Evaluation Benchmark for Peptide Tandem Mass Spectrometry Prediction · Table 4, block 'PROSPECT Trained', row 'UniSpec', column 'E. coli' (second value of SA / SAS)