{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:D2UA2TBMN2NKITU6UZSOZWYJ6L","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"38e03c35a8017134588ee2d4d8146726b3b34e9c8957b1604fec01c29d879a27","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2022-03-25T18:59:32Z","title_canon_sha256":"05082254e2ade15673a0347411d79b2544e1ffcee526eebf0c2c173d5d4cce28"},"schema_version":"1.0","source":{"id":"2203.13862","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.13862","created_at":"2026-07-05T04:08:44Z"},{"alias_kind":"arxiv_version","alias_value":"2203.13862v1","created_at":"2026-07-05T04:08:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.13862","created_at":"2026-07-05T04:08:44Z"},{"alias_kind":"pith_short_12","alias_value":"D2UA2TBMN2NK","created_at":"2026-07-05T04:08:44Z"},{"alias_kind":"pith_short_16","alias_value":"D2UA2TBMN2NKITU6","created_at":"2026-07-05T04:08:44Z"},{"alias_kind":"pith_short_8","alias_value":"D2UA2TBM","created_at":"2026-07-05T04:08:44Z"}],"graph_snapshots":[{"event_id":"sha256:171a1749013271916ae427a65b16002ac872c98325c17903824e635a89a997fb","target":"graph","created_at":"2026-07-05T04:08:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2203.13862/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We summarize recent evidence, both from lattice QCD and chiral perturbation theory, that suggests that larger-than-expected excited-state contamination could be the reason for the tension between phenomenological determinations and previous direct lattice-QCD calculations of the pion--nucleon sigma term $\\sigma_{\\pi N}$. In addition, we extend the $\\chi$PT analysis by calculating the corrections due to including the $\\Delta(1232)$ resonance as an explicit degree of freedom. This correction is found to be small, thereby corroborating the excited-state effects found in the $\\Delta$-less calculat","authors_text":"Boram Yoon, Emanuele Mereghetti, Martin Hoferichter, Rajan Gupta, Sungwoo Park, Tanmoy Bhattacharya","cross_cats":["hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2022-03-25T18:59:32Z","title":"The pion-nucleon sigma term from Lattice QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.13862","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:655c757083d20b4d6028d24e3ef29112c7c9668109abc357fcce5c88680c80a9","target":"record","created_at":"2026-07-05T04:08:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"38e03c35a8017134588ee2d4d8146726b3b34e9c8957b1604fec01c29d879a27","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2022-03-25T18:59:32Z","title_canon_sha256":"05082254e2ade15673a0347411d79b2544e1ffcee526eebf0c2c173d5d4cce28"},"schema_version":"1.0","source":{"id":"2203.13862","kind":"arxiv","version":1}},"canonical_sha256":"1ea80d4c2c6e9aa44e9ea664ecdb09f2efb9928fa1459ac041b108f36d4fca92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ea80d4c2c6e9aa44e9ea664ecdb09f2efb9928fa1459ac041b108f36d4fca92","first_computed_at":"2026-07-05T04:08:44.263675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:08:44.263675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HUf51BDH0edzj//ZZGs6BN4ZbIQeh2SU6tyYU2aynAomSjGaUuMnqyNPgxeLUS5R7VoK/IYtiNqAaCqhBh36Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:08:44.264090Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.13862","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:655c757083d20b4d6028d24e3ef29112c7c9668109abc357fcce5c88680c80a9","sha256:171a1749013271916ae427a65b16002ac872c98325c17903824e635a89a997fb"],"state_sha256":"c5a71b190ec6d3e8b939b24e3bdab3d181e404a887698963020aca2935c770e3"}