{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:AY2ARW4KJOM7C7FZ36ERVYFDZZ","short_pith_number":"pith:AY2ARW4K","canonical_record":{"source":{"id":"hep-ph/0703271","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2007-03-26T03:14:55Z","cross_cats_sorted":[],"title_canon_sha256":"60b08372423e79f186192d383a5a583d8979d78596bc87b1f0325f32c0e1d4db","abstract_canon_sha256":"32036fc66c3736b2d3be33e3d4792f884cceca021bdd013a3875565cb9552359"},"schema_version":"1.0"},"canonical_sha256":"063408db8a4b99f17cb9df891ae0a3ce59428bc1e3a469c73793b39496d01df3","source":{"kind":"arxiv","id":"hep-ph/0703271","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0703271","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0703271v2","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0703271","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"AY2ARW4KJOM7","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"AY2ARW4KJOM7C7FZ","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"AY2ARW4K","created_at":"2026-07-04T17:08:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:AY2ARW4KJOM7C7FZ36ERVYFDZZ","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0703271","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2007-03-26T03:14:55Z","cross_cats_sorted":[],"title_canon_sha256":"60b08372423e79f186192d383a5a583d8979d78596bc87b1f0325f32c0e1d4db","abstract_canon_sha256":"32036fc66c3736b2d3be33e3d4792f884cceca021bdd013a3875565cb9552359"},"schema_version":"1.0"},"canonical_sha256":"063408db8a4b99f17cb9df891ae0a3ce59428bc1e3a469c73793b39496d01df3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:08:31.570375Z","signature_b64":"96Hm+60XfGu6AU6SAWeEAS6ji8IwseTIzz0Orb8J82cxRRHOAmoxRBvXMVRjFuQc+XDi5QHWusfi3VjrA3RpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"063408db8a4b99f17cb9df891ae0a3ce59428bc1e3a469c73793b39496d01df3","last_reissued_at":"2026-07-04T17:08:31.569957Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:08:31.569957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0703271","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":"2026-07-04T17:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ABDM0tN9yXDV/DBgSGztKHRJY4Ivs4u5ScjKZHU80JW+SgRBLzb8XtcBTLmMU4Y06Pvae3FmpHkCRLwqQQ6/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:56:04.017165Z"},"content_sha256":"0a26f6b7e4e6d72e8a9a1e74b0610f7df9c9f464985f155482e19e1224dfdfeb","schema_version":"1.0","event_id":"sha256:0a26f6b7e4e6d72e8a9a1e74b0610f7df9c9f464985f155482e19e1224dfdfeb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:AY2ARW4KJOM7C7FZ36ERVYFDZZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Shear viscosity of the quark matter","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Hiromasa Ohnishi, Masaharu Iwasaki, Takahiko Fukutome","submitted_at":"2007-03-26T03:14:55Z","abstract_excerpt":"We discuss shear viscosity of the quark matter by using Kubo formula. The shear viscosity is calculated in the framework of the quasi-particle RPA for the Nambu-Jona-Lasinio model. We obtain a formula that the shear viscosity is expressed by the quadratic form of the quark spectral function in the chiral symmetric phase. The magnitude of the shear viscosity is discussed assuming the Breit-Wigner type for the spectral function."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0703271","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/0703271/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h3r4ejSKvcwkLmDra9j+Y9dMl5rjDiG4ZNCaN2NJWO6B76YeEloY/ZS7ZB1vwT0Itji39aY3bng0VSvSP3RMDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:56:04.017805Z"},"content_sha256":"d395ce437384556428f713af4c8eacfea4a97746f862d65279f662b4815fb9e0","schema_version":"1.0","event_id":"sha256:d395ce437384556428f713af4c8eacfea4a97746f862d65279f662b4815fb9e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ/bundle.json","state_url":"https://pith.science/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ/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":"2026-08-14T19:56:04Z","links":{"resolver":"https://pith.science/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ","bundle":"https://pith.science/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ/bundle.json","state":"https://pith.science/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AY2ARW4KJOM7C7FZ36ERVYFDZZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:AY2ARW4KJOM7C7FZ36ERVYFDZZ","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":"32036fc66c3736b2d3be33e3d4792f884cceca021bdd013a3875565cb9552359","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2007-03-26T03:14:55Z","title_canon_sha256":"60b08372423e79f186192d383a5a583d8979d78596bc87b1f0325f32c0e1d4db"},"schema_version":"1.0","source":{"id":"hep-ph/0703271","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0703271","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0703271v2","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0703271","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"AY2ARW4KJOM7","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"AY2ARW4KJOM7C7FZ","created_at":"2026-07-04T17:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"AY2ARW4K","created_at":"2026-07-04T17:08:31Z"}],"graph_snapshots":[{"event_id":"sha256:d395ce437384556428f713af4c8eacfea4a97746f862d65279f662b4815fb9e0","target":"graph","created_at":"2026-07-04T17:08:31Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/hep-ph/0703271/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We discuss shear viscosity of the quark matter by using Kubo formula. The shear viscosity is calculated in the framework of the quasi-particle RPA for the Nambu-Jona-Lasinio model. We obtain a formula that the shear viscosity is expressed by the quadratic form of the quark spectral function in the chiral symmetric phase. The magnitude of the shear viscosity is discussed assuming the Breit-Wigner type for the spectral function.","authors_text":"Hiromasa Ohnishi, Masaharu Iwasaki, Takahiko Fukutome","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2007-03-26T03:14:55Z","title":"Shear viscosity of the quark matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0703271","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":"sha256:0a26f6b7e4e6d72e8a9a1e74b0610f7df9c9f464985f155482e19e1224dfdfeb","target":"record","created_at":"2026-07-04T17:08:31Z","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":"32036fc66c3736b2d3be33e3d4792f884cceca021bdd013a3875565cb9552359","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2007-03-26T03:14:55Z","title_canon_sha256":"60b08372423e79f186192d383a5a583d8979d78596bc87b1f0325f32c0e1d4db"},"schema_version":"1.0","source":{"id":"hep-ph/0703271","kind":"arxiv","version":2}},"canonical_sha256":"063408db8a4b99f17cb9df891ae0a3ce59428bc1e3a469c73793b39496d01df3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"063408db8a4b99f17cb9df891ae0a3ce59428bc1e3a469c73793b39496d01df3","first_computed_at":"2026-07-04T17:08:31.569957Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:08:31.569957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"96Hm+60XfGu6AU6SAWeEAS6ji8IwseTIzz0Orb8J82cxRRHOAmoxRBvXMVRjFuQc+XDi5QHWusfi3VjrA3RpCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T17:08:31.570375Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0703271","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a26f6b7e4e6d72e8a9a1e74b0610f7df9c9f464985f155482e19e1224dfdfeb","sha256:d395ce437384556428f713af4c8eacfea4a97746f862d65279f662b4815fb9e0"],"state_sha256":"1d31917fab8d62b9697991b061d804cf62ec383d414bafbaa344cf21e13fc07d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D/se/4cXgsphNbXHq6788fkDf3ktWcYpe0Jya5R7HQJUS2QmOIWtf7gwAoTz57VaeeznBzLW2MDPB9t66MqvAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T19:56:04.023326Z","bundle_sha256":"eaee3a4745a3607f93ea215777b4e38756661b33d939ddbe4c724c172f084de3"}}