{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:PZB73UZMETTE2SS4ZBIVUTF25H","short_pith_number":"pith:PZB73UZM","canonical_record":{"source":{"id":"hep-ph/0107023","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-07-03T13:35:36Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"2b65911bf6966a186a50b3a25e1074e827acaa41ec3add01f738ef7d2f52306b","abstract_canon_sha256":"3727866e15933a2bb54805202260e477886281f425fe3409194c90850a79547d"},"schema_version":"1.0"},"canonical_sha256":"7e43fdd32c24e64d4a5cc8515a4cbae9fa6f21194e53d2213171ece91828d973","source":{"kind":"arxiv","id":"hep-ph/0107023","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0107023","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0107023v2","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0107023","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"pith_short_12","alias_value":"PZB73UZMETTE","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"pith_short_16","alias_value":"PZB73UZMETTE2SS4","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"pith_short_8","alias_value":"PZB73UZM","created_at":"2026-07-04T16:27:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:PZB73UZMETTE2SS4ZBIVUTF25H","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0107023","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2001-07-03T13:35:36Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"2b65911bf6966a186a50b3a25e1074e827acaa41ec3add01f738ef7d2f52306b","abstract_canon_sha256":"3727866e15933a2bb54805202260e477886281f425fe3409194c90850a79547d"},"schema_version":"1.0"},"canonical_sha256":"7e43fdd32c24e64d4a5cc8515a4cbae9fa6f21194e53d2213171ece91828d973","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:27:24.142123Z","signature_b64":"qJgQjwXO1inhf7vLVTQDcbFKBeS/puT3v9v1SXTc/Bs18nJo3SGoqmAT6u40uDwPeN7BVkO7IOLfCCUfCZF2Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e43fdd32c24e64d4a5cc8515a4cbae9fa6f21194e53d2213171ece91828d973","last_reissued_at":"2026-07-04T16:27:24.141784Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:27:24.141784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0107023","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":"2026-07-04T16:27:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"udj8xmE/v6C0Hd9DgEC/Z13LuTFqhXqQ+9yAU+x9D3gjcO/ePaTzBH9/ZuvSmCQj09gMVN9c0oH//3EMyKZ8DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:57:02.756829Z"},"content_sha256":"6b31025abd2c31b7e74b1fb3c74762d9337c269bbceed2e1153c8b072d3302c2","schema_version":"1.0","event_id":"sha256:6b31025abd2c31b7e74b1fb3c74762d9337c269bbceed2e1153c8b072d3302c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:PZB73UZMETTE2SS4ZBIVUTF25H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In-medium \\Sigma^0-\\Lambda Mixing in QCD Sum Rules","license":"","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"A. Hayashigaki (Univ. of Tokyo), N. Yagisawa (Univ. of Tsukuba), T. Hatsuda (Univ. of Tokyo)","submitted_at":"2001-07-03T13:35:36Z","abstract_excerpt":"The \\Sigma^0-\\Lambda mixing angle in isospin-asymmetric nuclear medium is investigated by using QCD sum rules. From the general consideration of the in-medium baryonic correlations, in-medium baryon mixings are shown to have several Lorentz structures such as the scalar mixing angle \\theta^S and the vector mixing angle \\theta^V. This causes a difference between the particle mixing \\theta (= \\theta^S + \\theta^V) and the anti-particle mixing \\bar{\\theta} (= \\theta^S - \\theta^V). From the finite energy sum rules for the \\Sigma^0-\\Lambda mixing, we find that the in-medium part of the mixing angle "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0107023","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/0107023/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":"2026-07-04T16:27:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SlHNr+pQjab2Y6X8af8hRrEHyIMT/DV6oUa/DwsB7S5y19leSDsCSJa60yC5i8uOpisplZFS4n5WhlB0Nc0vAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:57:02.757364Z"},"content_sha256":"3f5430bb2b9c42b06a977c971937a9cf8bf3202ee7242b4512b1aafe25d0137f","schema_version":"1.0","event_id":"sha256:3f5430bb2b9c42b06a977c971937a9cf8bf3202ee7242b4512b1aafe25d0137f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PZB73UZMETTE2SS4ZBIVUTF25H/bundle.json","state_url":"https://pith.science/pith/PZB73UZMETTE2SS4ZBIVUTF25H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PZB73UZMETTE2SS4ZBIVUTF25H/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":"2026-08-08T06:57:02Z","links":{"resolver":"https://pith.science/pith/PZB73UZMETTE2SS4ZBIVUTF25H","bundle":"https://pith.science/pith/PZB73UZMETTE2SS4ZBIVUTF25H/bundle.json","state":"https://pith.science/pith/PZB73UZMETTE2SS4ZBIVUTF25H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PZB73UZMETTE2SS4ZBIVUTF25H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:PZB73UZMETTE2SS4ZBIVUTF25H","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":"3727866e15933a2bb54805202260e477886281f425fe3409194c90850a79547d","cross_cats_sorted":["nucl-th"],"license":"","primary_cat":"hep-ph","submitted_at":"2001-07-03T13:35:36Z","title_canon_sha256":"2b65911bf6966a186a50b3a25e1074e827acaa41ec3add01f738ef7d2f52306b"},"schema_version":"1.0","source":{"id":"hep-ph/0107023","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0107023","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0107023v2","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0107023","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"pith_short_12","alias_value":"PZB73UZMETTE","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"pith_short_16","alias_value":"PZB73UZMETTE2SS4","created_at":"2026-07-04T16:27:24Z"},{"alias_kind":"pith_short_8","alias_value":"PZB73UZM","created_at":"2026-07-04T16:27:24Z"}],"graph_snapshots":[{"event_id":"sha256:3f5430bb2b9c42b06a977c971937a9cf8bf3202ee7242b4512b1aafe25d0137f","target":"graph","created_at":"2026-07-04T16:27:24Z","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/0107023/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The \\Sigma^0-\\Lambda mixing angle in isospin-asymmetric nuclear medium is investigated by using QCD sum rules. From the general consideration of the in-medium baryonic correlations, in-medium baryon mixings are shown to have several Lorentz structures such as the scalar mixing angle \\theta^S and the vector mixing angle \\theta^V. This causes a difference between the particle mixing \\theta (= \\theta^S + \\theta^V) and the anti-particle mixing \\bar{\\theta} (= \\theta^S - \\theta^V). From the finite energy sum rules for the \\Sigma^0-\\Lambda mixing, we find that the in-medium part of the mixing angle ","authors_text":"A. Hayashigaki (Univ. of Tokyo), N. Yagisawa (Univ. of Tsukuba), T. Hatsuda (Univ. of Tokyo)","cross_cats":["nucl-th"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2001-07-03T13:35:36Z","title":"In-medium \\Sigma^0-\\Lambda Mixing in QCD Sum Rules"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0107023","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":"sha256:6b31025abd2c31b7e74b1fb3c74762d9337c269bbceed2e1153c8b072d3302c2","target":"record","created_at":"2026-07-04T16:27:24Z","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":"3727866e15933a2bb54805202260e477886281f425fe3409194c90850a79547d","cross_cats_sorted":["nucl-th"],"license":"","primary_cat":"hep-ph","submitted_at":"2001-07-03T13:35:36Z","title_canon_sha256":"2b65911bf6966a186a50b3a25e1074e827acaa41ec3add01f738ef7d2f52306b"},"schema_version":"1.0","source":{"id":"hep-ph/0107023","kind":"arxiv","version":2}},"canonical_sha256":"7e43fdd32c24e64d4a5cc8515a4cbae9fa6f21194e53d2213171ece91828d973","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e43fdd32c24e64d4a5cc8515a4cbae9fa6f21194e53d2213171ece91828d973","first_computed_at":"2026-07-04T16:27:24.141784Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:27:24.141784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qJgQjwXO1inhf7vLVTQDcbFKBeS/puT3v9v1SXTc/Bs18nJo3SGoqmAT6u40uDwPeN7BVkO7IOLfCCUfCZF2Cg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:27:24.142123Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0107023","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b31025abd2c31b7e74b1fb3c74762d9337c269bbceed2e1153c8b072d3302c2","sha256:3f5430bb2b9c42b06a977c971937a9cf8bf3202ee7242b4512b1aafe25d0137f"],"state_sha256":"950ceb4d98d2f5f4e7e6dd8f4b016e88e93632ab89adf1d47ca3b806604658e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pr/V418OV0DqCZ7TKgnM5VHo7IkgAYmvYjhM4rHrJQVo9jD2SoUzcRKAp198mie7/hxxh1IdxCXo4v+XtbIfDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T06:57:02.761897Z","bundle_sha256":"071195bafb734077a79e0c5f2182ce672b0699736cd63f7b42a269abbafdd894"}}