{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3DVFH7TDHKJYJECEX6UEM2I7ZY","short_pith_number":"pith:3DVFH7TD","canonical_record":{"source":{"id":"1210.7565","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-10-29T05:17:53Z","cross_cats_sorted":["hep-lat","nucl-th"],"title_canon_sha256":"3b3b800180454cf82022e6852a6539b5ea51b7223f393af75c23e905f20eb5bb","abstract_canon_sha256":"da91601691a0e3ffe71c27935d87d6c44949718cc6171b2b9e8336d49f83a6cc"},"schema_version":"1.0"},"canonical_sha256":"d8ea53fe633a93849044bfa846691fce0c554e8692d5cf1c65ddc2936c70c34f","source":{"kind":"arxiv","id":"1210.7565","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7565","created_at":"2026-05-18T03:42:09Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7565v1","created_at":"2026-05-18T03:42:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7565","created_at":"2026-05-18T03:42:09Z"},{"alias_kind":"pith_short_12","alias_value":"3DVFH7TDHKJY","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3DVFH7TDHKJYJECE","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3DVFH7TD","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3DVFH7TDHKJYJECEX6UEM2I7ZY","target":"record","payload":{"canonical_record":{"source":{"id":"1210.7565","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-10-29T05:17:53Z","cross_cats_sorted":["hep-lat","nucl-th"],"title_canon_sha256":"3b3b800180454cf82022e6852a6539b5ea51b7223f393af75c23e905f20eb5bb","abstract_canon_sha256":"da91601691a0e3ffe71c27935d87d6c44949718cc6171b2b9e8336d49f83a6cc"},"schema_version":"1.0"},"canonical_sha256":"d8ea53fe633a93849044bfa846691fce0c554e8692d5cf1c65ddc2936c70c34f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:42:09.536554Z","signature_b64":"5RuqHVq1ifC11Fz9zwkO5n0uABdlrqLprUtwI/3xihA3AkLzgjjC5xPXN7hmXaZ45hqPwnkAIhnHE+2aaD3UCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8ea53fe633a93849044bfa846691fce0c554e8692d5cf1c65ddc2936c70c34f","last_reissued_at":"2026-05-18T03:42:09.535881Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:42:09.535881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.7565","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:42:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PSV1zu1p2nUW0NFaLPEG4Fe/+pgzh/FOiDBk8xYCB7L2y7KlCTPhs4rOV6bze1/I3UIkh4Gs4ZC1HbipU4nqAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:57:20.307091Z"},"content_sha256":"434caf37d653a68989fca280d3c731f6ddcfce8d5b45e733bc409593deed6853","schema_version":"1.0","event_id":"sha256:434caf37d653a68989fca280d3c731f6ddcfce8d5b45e733bc409593deed6853"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3DVFH7TDHKJYJECEX6UEM2I7ZY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Model approach to the sign problem on lattice QCD with theta vacuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","nucl-th"],"primary_cat":"hep-ph","authors_text":"Hiroaki Kouno, Junichi Takahashi, Masanobu Yahiro, Takahiro Sasaki, Yuji Sakai","submitted_at":"2012-10-29T05:17:53Z","abstract_excerpt":"We propose a practical way of circumventing the sign problem in lattice QCD simulations with a theta-vacuum term. This method is the reweighting method for the QCD Lagrangian after the chiral transformation. In the Lagrangian, the P-odd mass term as a cause of the sign problem is minimized. Additionally, we investigate theta-vacuum effects on the QCD phase diagram for the realistic 2+1 flavor system, using the three-flavor Polyakov-extended Nambu-Jona-Lasinio (PNJL) model and the entanglement PNJL model as an extension of the PNJL model. The theta-vacuum effects make the chiral transition shar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7565","kind":"arxiv","version":1},"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":"2026-05-18T03:42:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y9qxLESV5I9ClDnijkHqd3990yiWuLFzRHI8UDXn3nv9NVVAqWIAY7QODp/z/sbVa5Mq7Gm8b4N/dsN8rRAlAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:57:20.307459Z"},"content_sha256":"cda18e3659fcb49434915cc34b9e54a5dbc71eb4d39e51bdc5cd5c2f4a477a35","schema_version":"1.0","event_id":"sha256:cda18e3659fcb49434915cc34b9e54a5dbc71eb4d39e51bdc5cd5c2f4a477a35"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY/bundle.json","state_url":"https://pith.science/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY/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":"2026-05-28T07:57:20Z","links":{"resolver":"https://pith.science/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY","bundle":"https://pith.science/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY/bundle.json","state":"https://pith.science/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3DVFH7TDHKJYJECEX6UEM2I7ZY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3DVFH7TDHKJYJECEX6UEM2I7ZY","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":"da91601691a0e3ffe71c27935d87d6c44949718cc6171b2b9e8336d49f83a6cc","cross_cats_sorted":["hep-lat","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-10-29T05:17:53Z","title_canon_sha256":"3b3b800180454cf82022e6852a6539b5ea51b7223f393af75c23e905f20eb5bb"},"schema_version":"1.0","source":{"id":"1210.7565","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7565","created_at":"2026-05-18T03:42:09Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7565v1","created_at":"2026-05-18T03:42:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7565","created_at":"2026-05-18T03:42:09Z"},{"alias_kind":"pith_short_12","alias_value":"3DVFH7TDHKJY","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3DVFH7TDHKJYJECE","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3DVFH7TD","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:cda18e3659fcb49434915cc34b9e54a5dbc71eb4d39e51bdc5cd5c2f4a477a35","target":"graph","created_at":"2026-05-18T03:42:09Z","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":"We propose a practical way of circumventing the sign problem in lattice QCD simulations with a theta-vacuum term. This method is the reweighting method for the QCD Lagrangian after the chiral transformation. In the Lagrangian, the P-odd mass term as a cause of the sign problem is minimized. Additionally, we investigate theta-vacuum effects on the QCD phase diagram for the realistic 2+1 flavor system, using the three-flavor Polyakov-extended Nambu-Jona-Lasinio (PNJL) model and the entanglement PNJL model as an extension of the PNJL model. The theta-vacuum effects make the chiral transition shar","authors_text":"Hiroaki Kouno, Junichi Takahashi, Masanobu Yahiro, Takahiro Sasaki, Yuji Sakai","cross_cats":["hep-lat","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-10-29T05:17:53Z","title":"Model approach to the sign problem on lattice QCD with theta vacuum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7565","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":"sha256:434caf37d653a68989fca280d3c731f6ddcfce8d5b45e733bc409593deed6853","target":"record","created_at":"2026-05-18T03:42:09Z","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":"da91601691a0e3ffe71c27935d87d6c44949718cc6171b2b9e8336d49f83a6cc","cross_cats_sorted":["hep-lat","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-10-29T05:17:53Z","title_canon_sha256":"3b3b800180454cf82022e6852a6539b5ea51b7223f393af75c23e905f20eb5bb"},"schema_version":"1.0","source":{"id":"1210.7565","kind":"arxiv","version":1}},"canonical_sha256":"d8ea53fe633a93849044bfa846691fce0c554e8692d5cf1c65ddc2936c70c34f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8ea53fe633a93849044bfa846691fce0c554e8692d5cf1c65ddc2936c70c34f","first_computed_at":"2026-05-18T03:42:09.535881Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:42:09.535881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5RuqHVq1ifC11Fz9zwkO5n0uABdlrqLprUtwI/3xihA3AkLzgjjC5xPXN7hmXaZ45hqPwnkAIhnHE+2aaD3UCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:42:09.536554Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.7565","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:434caf37d653a68989fca280d3c731f6ddcfce8d5b45e733bc409593deed6853","sha256:cda18e3659fcb49434915cc34b9e54a5dbc71eb4d39e51bdc5cd5c2f4a477a35"],"state_sha256":"ff66e129c1aded6dedadf0c519173bdbe2b5ef17316858e35e6bf70dc659c7f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7MZSDzspI1o/u1cEaWy+nlOvkSW/crS4FOSp9ouUCk09j5xyOyqmdRbyLXBqNhgZLY8siwi1+3ZK9KbA+ngzAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:57:20.309451Z","bundle_sha256":"5aa49089ee888894f7ab5335b12a9fa4631f3bdf599f7e60e6adafcc0c483744"}}