{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:QPIAPW5WX7FVI2TU5LPFS5VC4W","short_pith_number":"pith:QPIAPW5W","canonical_record":{"source":{"id":"1903.05633","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-03-13T17:58:02Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"dc77b58d62644fb61f641eb098ee2cf1359b1b70c87613cad666fc02d78e15c8","abstract_canon_sha256":"567947b343016686594c5f66303ef4de961aabad2176eb112e55417358011de5"},"schema_version":"1.0"},"canonical_sha256":"83d007dbb6bfcb546a74eade5976a2e5bcd38e0533796f8495b0eaf1215a9604","source":{"kind":"arxiv","id":"1903.05633","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.05633","created_at":"2026-05-17T23:44:29Z"},{"alias_kind":"arxiv_version","alias_value":"1903.05633v3","created_at":"2026-05-17T23:44:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.05633","created_at":"2026-05-17T23:44:29Z"},{"alias_kind":"pith_short_12","alias_value":"QPIAPW5WX7FV","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"QPIAPW5WX7FVI2TU","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"QPIAPW5W","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:QPIAPW5WX7FVI2TU5LPFS5VC4W","target":"record","payload":{"canonical_record":{"source":{"id":"1903.05633","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-03-13T17:58:02Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"dc77b58d62644fb61f641eb098ee2cf1359b1b70c87613cad666fc02d78e15c8","abstract_canon_sha256":"567947b343016686594c5f66303ef4de961aabad2176eb112e55417358011de5"},"schema_version":"1.0"},"canonical_sha256":"83d007dbb6bfcb546a74eade5976a2e5bcd38e0533796f8495b0eaf1215a9604","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:29.003151Z","signature_b64":"m7gjYE6GT+kh8czxjl9MY624GVy9fNOyot//emBFdgRyXcXVOr9PWkZRIlpZyhH/tls1r9VSC0aaDZIuVSRPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83d007dbb6bfcb546a74eade5976a2e5bcd38e0533796f8495b0eaf1215a9604","last_reissued_at":"2026-05-17T23:44:29.002632Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:29.002632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.05633","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:44:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NBTNmujXh1AbaD0QeMPv1IV1ct7U6900mS4eOJ2BTpiubHk/VuPOl0baneH2BJNCFD06dQUxWxLZv/51+icOCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:25:04.358405Z"},"content_sha256":"5ea4903a2c841488bcf553cbb03e3467cc2fecf0022d65acaa7ac1dceea337e0","schema_version":"1.0","event_id":"sha256:5ea4903a2c841488bcf553cbb03e3467cc2fecf0022d65acaa7ac1dceea337e0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:QPIAPW5WX7FVI2TU5LPFS5VC4W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fate of the $\\eta'$ in the Quark Gluon Plasma","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"Andrey Yu. Kotov, Anton M. Trunin, Maria Paola Lombardo","submitted_at":"2019-03-13T17:58:02Z","abstract_excerpt":"In this paper we study the $\\eta'$ in $N_f=2+1+1$ lattice QCD simulations at finite temperature. Results are obtained from the analysis of the gluonic defined topological charge density correlator after gradient flow. Our results indicate the growth of the $\\eta'$ mass above the pseudocritical temperature, associated with the chiral symmetry restoration. In the vicinity of the pseudocritical temperature the results are consistent with a small dip in the $\\eta'$ mass. The magnitude of the dip is compatible with the reduction of the $\\eta'$ mass obtained by experimental analysis and suggests tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.05633","kind":"arxiv","version":3},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:44:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J4EGlU70PGyMrZmmA92ox7x1QWUCxd5ftrOcPvMK4ool6WLKnlIN3uobPET84PEHCS0jeBMJ1W1QZKpir9dlCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:25:04.358943Z"},"content_sha256":"8c55b30c4eba771fb0805ab6d87ec7edfbae75a30a3dec65048d156b03f35425","schema_version":"1.0","event_id":"sha256:8c55b30c4eba771fb0805ab6d87ec7edfbae75a30a3dec65048d156b03f35425"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W/bundle.json","state_url":"https://pith.science/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T22:25:04Z","links":{"resolver":"https://pith.science/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W","bundle":"https://pith.science/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W/bundle.json","state":"https://pith.science/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QPIAPW5WX7FVI2TU5LPFS5VC4W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:QPIAPW5WX7FVI2TU5LPFS5VC4W","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":"567947b343016686594c5f66303ef4de961aabad2176eb112e55417358011de5","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-03-13T17:58:02Z","title_canon_sha256":"dc77b58d62644fb61f641eb098ee2cf1359b1b70c87613cad666fc02d78e15c8"},"schema_version":"1.0","source":{"id":"1903.05633","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.05633","created_at":"2026-05-17T23:44:29Z"},{"alias_kind":"arxiv_version","alias_value":"1903.05633v3","created_at":"2026-05-17T23:44:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.05633","created_at":"2026-05-17T23:44:29Z"},{"alias_kind":"pith_short_12","alias_value":"QPIAPW5WX7FV","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"QPIAPW5WX7FVI2TU","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"QPIAPW5W","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:8c55b30c4eba771fb0805ab6d87ec7edfbae75a30a3dec65048d156b03f35425","target":"graph","created_at":"2026-05-17T23:44:29Z","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":"In this paper we study the $\\eta'$ in $N_f=2+1+1$ lattice QCD simulations at finite temperature. Results are obtained from the analysis of the gluonic defined topological charge density correlator after gradient flow. Our results indicate the growth of the $\\eta'$ mass above the pseudocritical temperature, associated with the chiral symmetry restoration. In the vicinity of the pseudocritical temperature the results are consistent with a small dip in the $\\eta'$ mass. The magnitude of the dip is compatible with the reduction of the $\\eta'$ mass obtained by experimental analysis and suggests tha","authors_text":"Andrey Yu. Kotov, Anton M. Trunin, Maria Paola Lombardo","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-03-13T17:58:02Z","title":"Fate of the $\\eta'$ in the Quark Gluon Plasma"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.05633","kind":"arxiv","version":3},"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":"sha256:5ea4903a2c841488bcf553cbb03e3467cc2fecf0022d65acaa7ac1dceea337e0","target":"record","created_at":"2026-05-17T23:44:29Z","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":"567947b343016686594c5f66303ef4de961aabad2176eb112e55417358011de5","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-03-13T17:58:02Z","title_canon_sha256":"dc77b58d62644fb61f641eb098ee2cf1359b1b70c87613cad666fc02d78e15c8"},"schema_version":"1.0","source":{"id":"1903.05633","kind":"arxiv","version":3}},"canonical_sha256":"83d007dbb6bfcb546a74eade5976a2e5bcd38e0533796f8495b0eaf1215a9604","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"83d007dbb6bfcb546a74eade5976a2e5bcd38e0533796f8495b0eaf1215a9604","first_computed_at":"2026-05-17T23:44:29.002632Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:29.002632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m7gjYE6GT+kh8czxjl9MY624GVy9fNOyot//emBFdgRyXcXVOr9PWkZRIlpZyhH/tls1r9VSC0aaDZIuVSRPBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:29.003151Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.05633","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ea4903a2c841488bcf553cbb03e3467cc2fecf0022d65acaa7ac1dceea337e0","sha256:8c55b30c4eba771fb0805ab6d87ec7edfbae75a30a3dec65048d156b03f35425"],"state_sha256":"715ad534e1f4b402091906b3af172ababb39932f41c93735a888a9d6c1930987"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iRNddQUpPStHVmSgVKvtVJUyxXfU67Shzz0Ua/Ow/UCUFucKN4craY84gIwjVA8yipWS/wHuvT+7qus5MVakCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T22:25:04.362021Z","bundle_sha256":"6620fca1e67e7eadfd8da565edf6109e96ce2e37cbf44b54ffe89ceef1d892f7"}}