{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:2D4SHS2A3XGDFV6GUZO7KCL7R3","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":"eced91e7a0480c9498120f5a45cebea971fcb53ac025c9bb59b4733fcaa1decd","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2000-12-05T11:35:08Z","title_canon_sha256":"971e2f50cd82bfa2d383fea838613e401f70a341c5f4ab9763945e1209fc3a45"},"schema_version":"1.0","source":{"id":"nucl-th/0012013","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/0012013","created_at":"2026-07-04T16:22:09Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/0012013v1","created_at":"2026-07-04T16:22:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/0012013","created_at":"2026-07-04T16:22:09Z"},{"alias_kind":"pith_short_12","alias_value":"2D4SHS2A3XGD","created_at":"2026-07-04T16:22:09Z"},{"alias_kind":"pith_short_16","alias_value":"2D4SHS2A3XGDFV6G","created_at":"2026-07-04T16:22:09Z"},{"alias_kind":"pith_short_8","alias_value":"2D4SHS2A","created_at":"2026-07-04T16:22:09Z"}],"graph_snapshots":[{"event_id":"sha256:47c9024148a0d44e3a1e8362d59e754465c4a4a3a5a55269b796bafe2c53006d","target":"graph","created_at":"2026-07-04T16:22:09Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/nucl-th/0012013/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using the linear sigma model, we study the evolutions of the quark condensate and of the nucleon mass in the nuclear medium. Our formulation of the model allows the inclusion of both pion and scalar-isoscalar degrees of freedom. It guarantees that the low energy theorems and the constrains of chiral perturbation theory are respected. We show how this formalism incorporates quantum hadro-dynamics improved by the pion loops effects.","authors_text":"G. Chanfray, M. Ericson, P.A.M. Guichon","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"2000-12-05T11:35:08Z","title":"Chiral symmetry and quantum hadro-dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/0012013","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":"sha256:3dbf02708827bcaea82b210b44037cb5719ca3f5434fd8d67d33c64bcd829a15","target":"record","created_at":"2026-07-04T16:22:09Z","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":"eced91e7a0480c9498120f5a45cebea971fcb53ac025c9bb59b4733fcaa1decd","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"2000-12-05T11:35:08Z","title_canon_sha256":"971e2f50cd82bfa2d383fea838613e401f70a341c5f4ab9763945e1209fc3a45"},"schema_version":"1.0","source":{"id":"nucl-th/0012013","kind":"arxiv","version":1}},"canonical_sha256":"d0f923cb40ddcc32d7c6a65df5097f8efe9ef7a48dc5433ef5a8d495f8c9687e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0f923cb40ddcc32d7c6a65df5097f8efe9ef7a48dc5433ef5a8d495f8c9687e","first_computed_at":"2026-07-04T16:22:09.078392Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:22:09.078392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2c1Kn13QR2BHtkZEFmXG/ZuG/zglDKpEbk3xDf7hIVcDlyuFYsuZ+gcXKomx5KMgmaWHyEmYDNDWZwwJ0bTEAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:22:09.078728Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/0012013","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3dbf02708827bcaea82b210b44037cb5719ca3f5434fd8d67d33c64bcd829a15","sha256:47c9024148a0d44e3a1e8362d59e754465c4a4a3a5a55269b796bafe2c53006d"],"state_sha256":"4e1b3d76254b8d38e08d5169b4191c7b627c2c6a642c7d425d065c98a0aeaf68"}