{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:EDUEGLVLSYTNSSA6OBQ542ERXF","short_pith_number":"pith:EDUEGLVL","schema_version":"1.0","canonical_sha256":"20e8432eab9626d9481e7061de6891b975fd91b93990d1cad1af9330ff1a6f56","source":{"kind":"arxiv","id":"2010.07943","version":2},"attestation_state":"computed","paper":{"title":"Constraints on the two-pion contribution to hadronic vacuum polarization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat","nucl-th"],"primary_cat":"hep-ph","authors_text":"Gilberto Colangelo, Martin Hoferichter, Peter Stoffer","submitted_at":"2020-10-15T18:00:01Z","abstract_excerpt":"At low energies hadronic vacuum polarization (HVP) is strongly dominated by two-pion intermediate states, which are responsible for about $70\\%$ of the HVP contribution to the anomalous magnetic moment of the muon, $a_\\mu^\\text{HVP}$. Lattice-QCD evaluations of the latter indicate that it might be larger than calculated dispersively on the basis of $e^+e^-\\to\\text{hadrons}$ data, at a level which would contest the long-standing discrepancy with the $a_\\mu$ measurement. In this Letter we study to which extent this $2\\pi$ contribution can be modified without, at the same time, producing a confli"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2010.07943","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-10-15T18:00:01Z","cross_cats_sorted":["hep-ex","hep-lat","nucl-th"],"title_canon_sha256":"2d11ed92febc7f695dfd483d06671662a048603d38c5bd26f38b50ff619a48f3","abstract_canon_sha256":"18d928e06e7e593ec71af79bde4af1402f1e238a7fb830f755896e46478e4fcc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:07:50.512943Z","signature_b64":"wkqTTsuB/jdjGBkW/tQ3tpPV5m+lXNa6DbNNpUvUcB33w4tEPsIWA68v27w6d6mR7cNCxqSIjK/A0i9qAiiJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"20e8432eab9626d9481e7061de6891b975fd91b93990d1cad1af9330ff1a6f56","last_reissued_at":"2026-07-05T02:07:50.512558Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:07:50.512558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraints on the two-pion contribution to hadronic vacuum polarization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat","nucl-th"],"primary_cat":"hep-ph","authors_text":"Gilberto Colangelo, Martin Hoferichter, Peter Stoffer","submitted_at":"2020-10-15T18:00:01Z","abstract_excerpt":"At low energies hadronic vacuum polarization (HVP) is strongly dominated by two-pion intermediate states, which are responsible for about $70\\%$ of the HVP contribution to the anomalous magnetic moment of the muon, $a_\\mu^\\text{HVP}$. Lattice-QCD evaluations of the latter indicate that it might be larger than calculated dispersively on the basis of $e^+e^-\\to\\text{hadrons}$ data, at a level which would contest the long-standing discrepancy with the $a_\\mu$ measurement. In this Letter we study to which extent this $2\\pi$ contribution can be modified without, at the same time, producing a confli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.07943","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.07943/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2010.07943","created_at":"2026-07-05T02:07:50.512609+00:00"},{"alias_kind":"arxiv_version","alias_value":"2010.07943v2","created_at":"2026-07-05T02:07:50.512609+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.07943","created_at":"2026-07-05T02:07:50.512609+00:00"},{"alias_kind":"pith_short_12","alias_value":"EDUEGLVLSYTN","created_at":"2026-07-05T02:07:50.512609+00:00"},{"alias_kind":"pith_short_16","alias_value":"EDUEGLVLSYTNSSA6","created_at":"2026-07-05T02:07:50.512609+00:00"},{"alias_kind":"pith_short_8","alias_value":"EDUEGLVL","created_at":"2026-07-05T02:07:50.512609+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2501.09643","citing_title":"Dispersive analysis of the pion vector form factor without zeros","ref_index":70,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF","json":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF.json","graph_json":"https://pith.science/api/pith-number/EDUEGLVLSYTNSSA6OBQ542ERXF/graph.json","events_json":"https://pith.science/api/pith-number/EDUEGLVLSYTNSSA6OBQ542ERXF/events.json","paper":"https://pith.science/paper/EDUEGLVL"},"agent_actions":{"view_html":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF","download_json":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF.json","view_paper":"https://pith.science/paper/EDUEGLVL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2010.07943&json=true","fetch_graph":"https://pith.science/api/pith-number/EDUEGLVLSYTNSSA6OBQ542ERXF/graph.json","fetch_events":"https://pith.science/api/pith-number/EDUEGLVLSYTNSSA6OBQ542ERXF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF/action/storage_attestation","attest_author":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF/action/author_attestation","sign_citation":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF/action/citation_signature","submit_replication":"https://pith.science/pith/EDUEGLVLSYTNSSA6OBQ542ERXF/action/replication_record"}},"created_at":"2026-07-05T02:07:50.512609+00:00","updated_at":"2026-07-05T02:07:50.512609+00:00"}