{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MMOEYV5CEAIY5VMD324WQIQ36N","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":"4893c522c6d705afcd21a8a8f0ef32632c6a0e596014ba98f94ebf4676a04f0b","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-08-01T20:09:22Z","title_canon_sha256":"f15ce7dbc02e8477dc1f8e64791efbe7b29813a00b594dc8a8291cc9924c6543"},"schema_version":"1.0","source":{"id":"1508.00163","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.00163","created_at":"2026-05-18T01:35:58Z"},{"alias_kind":"arxiv_version","alias_value":"1508.00163v1","created_at":"2026-05-18T01:35:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.00163","created_at":"2026-05-18T01:35:58Z"},{"alias_kind":"pith_short_12","alias_value":"MMOEYV5CEAIY","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MMOEYV5CEAIY5VMD","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MMOEYV5C","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:8306cefc396d8a4f853d4c2ef964b4c00b3e9e5994e26105909851a48065d71c","target":"graph","created_at":"2026-05-18T01:35:58Z","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"},"paper":{"abstract_excerpt":"Techniques to compute hadron properties from lattice QCD rely upon the limit of long time separation. For baryons, the signal-to-noise problem often restricts one to time separations that are not ideally long, and for which couplings to excited states can obstruct the isolation of ground-state baryon properties. We consider excited-state contamination in nucleon two- and three-point functions. Using chiral perturbation theory, we determine couplings to pion-nucleon and pion-delta excited states. In two-point functions, these contributions are small, in accordance with general properties of the","authors_text":"Brian C. Tiburzi","cross_cats":["hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-08-01T20:09:22Z","title":"Excited-state contamination in nucleon correlators from chiral perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.00163","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":"sha256:5ef80b7526bfcdedad6d3aa1bd189ca6eaf917c335c534713795eacc1582179e","target":"record","created_at":"2026-05-18T01:35:58Z","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":"4893c522c6d705afcd21a8a8f0ef32632c6a0e596014ba98f94ebf4676a04f0b","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-08-01T20:09:22Z","title_canon_sha256":"f15ce7dbc02e8477dc1f8e64791efbe7b29813a00b594dc8a8291cc9924c6543"},"schema_version":"1.0","source":{"id":"1508.00163","kind":"arxiv","version":1}},"canonical_sha256":"631c4c57a220118ed583deb968221bf37cc561eb0282f096da6f4ba3660239fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"631c4c57a220118ed583deb968221bf37cc561eb0282f096da6f4ba3660239fb","first_computed_at":"2026-05-18T01:35:58.822713Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:58.822713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"50j2LpGrMvPbsGE3r7KtkD1BKNw82RPpaFQ7bvYgG0kLgi/yeN07VXwr+jNlmFvmZapWXzVAIF+aygHXib4RCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:58.823178Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.00163","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ef80b7526bfcdedad6d3aa1bd189ca6eaf917c335c534713795eacc1582179e","sha256:8306cefc396d8a4f853d4c2ef964b4c00b3e9e5994e26105909851a48065d71c"],"state_sha256":"7f051acbc40791faa8eb7ec6552ce2bfc9eb17c9ba631e0c4d8fc3d8703c5b06"}