{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JHDIVPRIYQ2QRGK2I2R3VMNIAF","short_pith_number":"pith:JHDIVPRI","canonical_record":{"source":{"id":"1807.08110","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-21T08:53:29Z","cross_cats_sorted":["hep-lat","nucl-th"],"title_canon_sha256":"5d8897ba2e3237fd382a03668329cdd70b0d7d3c1c3eb0ddcf1832794b915fa8","abstract_canon_sha256":"c52e2a356ce0c62be06e96b631622e98a77580a1f0d5d72b15bfbbeefbdc7719"},"schema_version":"1.0"},"canonical_sha256":"49c68abe28c43508995a46a3bab1a8017b8688f4325899641b3a1354138e8b93","source":{"kind":"arxiv","id":"1807.08110","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.08110","created_at":"2026-05-17T23:42:30Z"},{"alias_kind":"arxiv_version","alias_value":"1807.08110v2","created_at":"2026-05-17T23:42:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.08110","created_at":"2026-05-17T23:42:30Z"},{"alias_kind":"pith_short_12","alias_value":"JHDIVPRIYQ2Q","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JHDIVPRIYQ2QRGK2","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JHDIVPRI","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JHDIVPRIYQ2QRGK2I2R3VMNIAF","target":"record","payload":{"canonical_record":{"source":{"id":"1807.08110","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-21T08:53:29Z","cross_cats_sorted":["hep-lat","nucl-th"],"title_canon_sha256":"5d8897ba2e3237fd382a03668329cdd70b0d7d3c1c3eb0ddcf1832794b915fa8","abstract_canon_sha256":"c52e2a356ce0c62be06e96b631622e98a77580a1f0d5d72b15bfbbeefbdc7719"},"schema_version":"1.0"},"canonical_sha256":"49c68abe28c43508995a46a3bab1a8017b8688f4325899641b3a1354138e8b93","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:30.097921Z","signature_b64":"XGTb3UzZIo9KE31DttEzJ/uvQTBDZlBrO2MOw3/6+Lr+CuStlQ6DjfzbTOKFmb9qkWa9W2Qq4TqWvL+dTdmeCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49c68abe28c43508995a46a3bab1a8017b8688f4325899641b3a1354138e8b93","last_reissued_at":"2026-05-17T23:42:30.097386Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:30.097386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.08110","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:42:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LZjFWyaT3STLNP6UxcdJZ9B2sggrklnf9GhHaSPk7ryYELcoD5yrSAhQ/hbUxvG3Nk1xGYZr7kdd2KBHlOaaAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T03:00:38.875023Z"},"content_sha256":"b384c58305a166978989b318432e908ec3decb8daaf4dde9819399e3c4f5a20c","schema_version":"1.0","event_id":"sha256:b384c58305a166978989b318432e908ec3decb8daaf4dde9819399e3c4f5a20c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JHDIVPRIYQ2QRGK2I2R3VMNIAF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extrapolation for meson screening masses from imaginary to real chemical potential","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","nucl-th"],"primary_cat":"hep-ph","authors_text":"Akihisa Miyahara, Hiroaki Kouno, Masahiro Ishii, Masanobu Yahiro","submitted_at":"2018-07-21T08:53:29Z","abstract_excerpt":"We first extend our formulation for the calculation of $\\pi$- and $\\sigma$-meson screening masses to the case of finite chemical potential $\\mu$. We then consider the imaginary-$\\mu$ approach, which is an extrapolation method from imaginary chemical potential ($\\mu=i \\mu_{\\rm I}$) to real one ($\\mu=\\mu_{\\rm R}$). The feasibility of the method is discussed based on the entanglement Polyakov-loop extended Nambu--Jona-Lasinio (EPNJL) model in 2-flavor system. As an example, we investigate how reliable the imaginary-$\\mu$ approach is for $\\pi$- and $\\sigma$-meson screening masses, comparing \"scree"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.08110","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:42:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lQEAUt06yTKuksLq3svvrQ49ruMk55KY5ZnYBi9JQdud6rVTdFmeADuHDc4cI4TOUeap4/cu5TS5cVCYbppTCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T03:00:38.875401Z"},"content_sha256":"ea5624c69af4ea9c37c4d2d29ffe24dce81c125586c69d8918b45428d6ff799c","schema_version":"1.0","event_id":"sha256:ea5624c69af4ea9c37c4d2d29ffe24dce81c125586c69d8918b45428d6ff799c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF/bundle.json","state_url":"https://pith.science/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF/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":"2026-05-28T03:00:38Z","links":{"resolver":"https://pith.science/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF","bundle":"https://pith.science/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF/bundle.json","state":"https://pith.science/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JHDIVPRIYQ2QRGK2I2R3VMNIAF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JHDIVPRIYQ2QRGK2I2R3VMNIAF","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":"c52e2a356ce0c62be06e96b631622e98a77580a1f0d5d72b15bfbbeefbdc7719","cross_cats_sorted":["hep-lat","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-21T08:53:29Z","title_canon_sha256":"5d8897ba2e3237fd382a03668329cdd70b0d7d3c1c3eb0ddcf1832794b915fa8"},"schema_version":"1.0","source":{"id":"1807.08110","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.08110","created_at":"2026-05-17T23:42:30Z"},{"alias_kind":"arxiv_version","alias_value":"1807.08110v2","created_at":"2026-05-17T23:42:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.08110","created_at":"2026-05-17T23:42:30Z"},{"alias_kind":"pith_short_12","alias_value":"JHDIVPRIYQ2Q","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JHDIVPRIYQ2QRGK2","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JHDIVPRI","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:ea5624c69af4ea9c37c4d2d29ffe24dce81c125586c69d8918b45428d6ff799c","target":"graph","created_at":"2026-05-17T23:42:30Z","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 first extend our formulation for the calculation of $\\pi$- and $\\sigma$-meson screening masses to the case of finite chemical potential $\\mu$. We then consider the imaginary-$\\mu$ approach, which is an extrapolation method from imaginary chemical potential ($\\mu=i \\mu_{\\rm I}$) to real one ($\\mu=\\mu_{\\rm R}$). The feasibility of the method is discussed based on the entanglement Polyakov-loop extended Nambu--Jona-Lasinio (EPNJL) model in 2-flavor system. As an example, we investigate how reliable the imaginary-$\\mu$ approach is for $\\pi$- and $\\sigma$-meson screening masses, comparing \"scree","authors_text":"Akihisa Miyahara, Hiroaki Kouno, Masahiro Ishii, Masanobu Yahiro","cross_cats":["hep-lat","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-21T08:53:29Z","title":"Extrapolation for meson screening masses from imaginary to real chemical potential"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.08110","kind":"arxiv","version":2},"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:b384c58305a166978989b318432e908ec3decb8daaf4dde9819399e3c4f5a20c","target":"record","created_at":"2026-05-17T23:42:30Z","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":"c52e2a356ce0c62be06e96b631622e98a77580a1f0d5d72b15bfbbeefbdc7719","cross_cats_sorted":["hep-lat","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-07-21T08:53:29Z","title_canon_sha256":"5d8897ba2e3237fd382a03668329cdd70b0d7d3c1c3eb0ddcf1832794b915fa8"},"schema_version":"1.0","source":{"id":"1807.08110","kind":"arxiv","version":2}},"canonical_sha256":"49c68abe28c43508995a46a3bab1a8017b8688f4325899641b3a1354138e8b93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49c68abe28c43508995a46a3bab1a8017b8688f4325899641b3a1354138e8b93","first_computed_at":"2026-05-17T23:42:30.097386Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:30.097386Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XGTb3UzZIo9KE31DttEzJ/uvQTBDZlBrO2MOw3/6+Lr+CuStlQ6DjfzbTOKFmb9qkWa9W2Qq4TqWvL+dTdmeCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:30.097921Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.08110","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b384c58305a166978989b318432e908ec3decb8daaf4dde9819399e3c4f5a20c","sha256:ea5624c69af4ea9c37c4d2d29ffe24dce81c125586c69d8918b45428d6ff799c"],"state_sha256":"94bb9c4f72c41fd3453b7782a006f3c1ae283b9b78ce262ca9a9dcafacf50b89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LjtP529D0E4Vpw+ljDhdaZVGDuNkfHkxZg34uEZZn1bkh/vjY/oA0M2Q/VgDbd1re/2IG3L9i6b18YFPm4ZeBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T03:00:38.877385Z","bundle_sha256":"4e92743a77f2d73100f22095c6043773c6e6daf9868ff6fc33e038e3516a8de1"}}