{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:MVP47KYDKONY4OVQ7MZBTOHQXI","short_pith_number":"pith:MVP47KYD","schema_version":"1.0","canonical_sha256":"655fcfab03539b8e3ab0fb3219b8f0ba0cf849a28845ac92100244ac0eb206f9","source":{"kind":"arxiv","id":"1903.10307","version":2},"attestation_state":"computed","paper":{"title":"Theta dependence of the vacuum energy density in chiral effective Lagrangian models at finite temperature, above $T_c$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","hep-th"],"primary_cat":"hep-ph","authors_text":"Enrico Meggiolaro","submitted_at":"2019-03-25T13:35:29Z","abstract_excerpt":"In this work, extending a previous study at zero temperature ($T=0$), we perform a systematic study of the modifications to the QCD vacuum energy density $\\epsilon_{vac}$ in the finite-temperature case, above the chiral transition at $T_c$, caused by a nonzero value of the parameter $\\theta$, using two different effective Lagrangian models which implement the $U(1)$ axial anomaly of the fundamental theory and which are both well defined also above $T_c$. In particular, we derive (and critically compare) the expressions for the topological susceptibility $\\chi$ and for the second cumulant $c_4$"},"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":"1903.10307","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-03-25T13:35:29Z","cross_cats_sorted":["hep-lat","hep-th"],"title_canon_sha256":"f2eef3dff8e3cacc2136d3a08353f7e3a56cd121a5354035689ec12005e3b576","abstract_canon_sha256":"188a48e965842456214d90db292bf510cd175950b8fbec4ff6d69f963a08008c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:14.549199Z","signature_b64":"98+gtQKT51mUpslZQiGEgycMWr/hNm1KvhhxSrfAXsxhqaAzm8rTsTu4n0zTLs48wdk98+1vmo2w05Iqz4EhBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"655fcfab03539b8e3ab0fb3219b8f0ba0cf849a28845ac92100244ac0eb206f9","last_reissued_at":"2026-05-17T23:43:14.548766Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:14.548766Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Theta dependence of the vacuum energy density in chiral effective Lagrangian models at finite temperature, above $T_c$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","hep-th"],"primary_cat":"hep-ph","authors_text":"Enrico Meggiolaro","submitted_at":"2019-03-25T13:35:29Z","abstract_excerpt":"In this work, extending a previous study at zero temperature ($T=0$), we perform a systematic study of the modifications to the QCD vacuum energy density $\\epsilon_{vac}$ in the finite-temperature case, above the chiral transition at $T_c$, caused by a nonzero value of the parameter $\\theta$, using two different effective Lagrangian models which implement the $U(1)$ axial anomaly of the fundamental theory and which are both well defined also above $T_c$. In particular, we derive (and critically compare) the expressions for the topological susceptibility $\\chi$ and for the second cumulant $c_4$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.10307","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":""},"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":"1903.10307","created_at":"2026-05-17T23:43:14.548832+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.10307v2","created_at":"2026-05-17T23:43:14.548832+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.10307","created_at":"2026-05-17T23:43:14.548832+00:00"},{"alias_kind":"pith_short_12","alias_value":"MVP47KYDKONY","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"MVP47KYDKONY4OVQ","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"MVP47KYD","created_at":"2026-05-18T12:33:24.271573+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI","json":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI.json","graph_json":"https://pith.science/api/pith-number/MVP47KYDKONY4OVQ7MZBTOHQXI/graph.json","events_json":"https://pith.science/api/pith-number/MVP47KYDKONY4OVQ7MZBTOHQXI/events.json","paper":"https://pith.science/paper/MVP47KYD"},"agent_actions":{"view_html":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI","download_json":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI.json","view_paper":"https://pith.science/paper/MVP47KYD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.10307&json=true","fetch_graph":"https://pith.science/api/pith-number/MVP47KYDKONY4OVQ7MZBTOHQXI/graph.json","fetch_events":"https://pith.science/api/pith-number/MVP47KYDKONY4OVQ7MZBTOHQXI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI/action/storage_attestation","attest_author":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI/action/author_attestation","sign_citation":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI/action/citation_signature","submit_replication":"https://pith.science/pith/MVP47KYDKONY4OVQ7MZBTOHQXI/action/replication_record"}},"created_at":"2026-05-17T23:43:14.548832+00:00","updated_at":"2026-05-17T23:43:14.548832+00:00"}