{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:DNPUBE65NMGUBXHMZZKLP6C5NA","short_pith_number":"pith:DNPUBE65","canonical_record":{"source":{"id":"2203.00269","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2022-03-01T07:08:22Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"9017bfaa5dd18badd461d3202a49fa7c52fa79852bc55c362d18c20c1b3f28ff","abstract_canon_sha256":"313d22c1f3f6be0acd32c637c9a5c6f9fe0016284c60f8d8d5db3ac0de064d11"},"schema_version":"1.0"},"canonical_sha256":"1b5f4093dd6b0d40dcecce54b7f85d6836995067773e36ad8ed9e92083ac1d59","source":{"kind":"arxiv","id":"2203.00269","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.00269","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"arxiv_version","alias_value":"2203.00269v1","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.00269","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"pith_short_12","alias_value":"DNPUBE65NMGU","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"pith_short_16","alias_value":"DNPUBE65NMGUBXHM","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"pith_short_8","alias_value":"DNPUBE65","created_at":"2026-07-05T04:21:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:DNPUBE65NMGUBXHMZZKLP6C5NA","target":"record","payload":{"canonical_record":{"source":{"id":"2203.00269","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2022-03-01T07:08:22Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"9017bfaa5dd18badd461d3202a49fa7c52fa79852bc55c362d18c20c1b3f28ff","abstract_canon_sha256":"313d22c1f3f6be0acd32c637c9a5c6f9fe0016284c60f8d8d5db3ac0de064d11"},"schema_version":"1.0"},"canonical_sha256":"1b5f4093dd6b0d40dcecce54b7f85d6836995067773e36ad8ed9e92083ac1d59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:21:09.863409Z","signature_b64":"jEfKTV4PnScP5PleqFhnoDszXo9tdl8nJb9DY/pheHQUeC/9LX/A3JFfCQXKpa+kJ9LgedyrukBpOBPVhHctBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b5f4093dd6b0d40dcecce54b7f85d6836995067773e36ad8ed9e92083ac1d59","last_reissued_at":"2026-07-05T04:21:09.862914Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:21:09.862914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.00269","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":"2026-07-05T04:21:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iNv489u+5weVomDBdDigYP7y9sHPhmVUVzQD2YJqG5qOda/rfw1Hn52A/6otod4M2mH2uBqKuzU8s/SD5M2ACA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:42:07.897095Z"},"content_sha256":"c8bb84729c2ea974a02eb3258cec547208a14cfb389b753f23a7bc1bf0f26e19","schema_version":"1.0","event_id":"sha256:c8bb84729c2ea974a02eb3258cec547208a14cfb389b753f23a7bc1bf0f26e19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:DNPUBE65NMGUBXHMZZKLP6C5NA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chiral symmetry restoration and the $\\Delta$ matter formation in neutron stars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"nucl-th","authors_text":"Chihiro Sasaki, Krzysztof Redlich, Micha{\\l} Marczenko","submitted_at":"2022-03-01T07:08:22Z","abstract_excerpt":"We analyze the effects of chiral symmetry restoration in hadronic matter, including the lowest-lying baryonic resonance $\\Delta$ based on the parity doublet model. We study the role of $\\Delta$ and its chiral partner on the equation of state (EoS) of dense matter under neutron star (NS) conditions of $\\beta$-equilibrium and charge neutrality. We find that the softening of the EoS driven by the early onset of $\\Delta$ matter due to partial restoration of chiral symmetry allows accommodating the modern multi-messenger astrophysical constraints on the mass, radius, and tidal deformability. The so"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.00269","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2203.00269/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":"2026-07-05T04:21:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G8TJimezk6MNjQkgSsZDR/OKWhhnmKmA22G9Fo0TbGZ9ep5Yl9WCBwmxjIYgSPtc3etp9wUdRIKqGFvrJiWWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:42:07.898282Z"},"content_sha256":"1f340d2ca579969dd6da9ecbf63b1b4c2eb2fd262c1401d30ef95b4a994456a0","schema_version":"1.0","event_id":"sha256:1f340d2ca579969dd6da9ecbf63b1b4c2eb2fd262c1401d30ef95b4a994456a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DNPUBE65NMGUBXHMZZKLP6C5NA/bundle.json","state_url":"https://pith.science/pith/DNPUBE65NMGUBXHMZZKLP6C5NA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DNPUBE65NMGUBXHMZZKLP6C5NA/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":"2026-08-06T05:42:07Z","links":{"resolver":"https://pith.science/pith/DNPUBE65NMGUBXHMZZKLP6C5NA","bundle":"https://pith.science/pith/DNPUBE65NMGUBXHMZZKLP6C5NA/bundle.json","state":"https://pith.science/pith/DNPUBE65NMGUBXHMZZKLP6C5NA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DNPUBE65NMGUBXHMZZKLP6C5NA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:DNPUBE65NMGUBXHMZZKLP6C5NA","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":"313d22c1f3f6be0acd32c637c9a5c6f9fe0016284c60f8d8d5db3ac0de064d11","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2022-03-01T07:08:22Z","title_canon_sha256":"9017bfaa5dd18badd461d3202a49fa7c52fa79852bc55c362d18c20c1b3f28ff"},"schema_version":"1.0","source":{"id":"2203.00269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.00269","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"arxiv_version","alias_value":"2203.00269v1","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.00269","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"pith_short_12","alias_value":"DNPUBE65NMGU","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"pith_short_16","alias_value":"DNPUBE65NMGUBXHM","created_at":"2026-07-05T04:21:09Z"},{"alias_kind":"pith_short_8","alias_value":"DNPUBE65","created_at":"2026-07-05T04:21:09Z"}],"graph_snapshots":[{"event_id":"sha256:1f340d2ca579969dd6da9ecbf63b1b4c2eb2fd262c1401d30ef95b4a994456a0","target":"graph","created_at":"2026-07-05T04:21:09Z","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/2203.00269/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We analyze the effects of chiral symmetry restoration in hadronic matter, including the lowest-lying baryonic resonance $\\Delta$ based on the parity doublet model. We study the role of $\\Delta$ and its chiral partner on the equation of state (EoS) of dense matter under neutron star (NS) conditions of $\\beta$-equilibrium and charge neutrality. We find that the softening of the EoS driven by the early onset of $\\Delta$ matter due to partial restoration of chiral symmetry allows accommodating the modern multi-messenger astrophysical constraints on the mass, radius, and tidal deformability. The so","authors_text":"Chihiro Sasaki, Krzysztof Redlich, Micha{\\l} Marczenko","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2022-03-01T07:08:22Z","title":"Chiral symmetry restoration and the $\\Delta$ matter formation in neutron stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.00269","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:c8bb84729c2ea974a02eb3258cec547208a14cfb389b753f23a7bc1bf0f26e19","target":"record","created_at":"2026-07-05T04:21:09Z","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":"313d22c1f3f6be0acd32c637c9a5c6f9fe0016284c60f8d8d5db3ac0de064d11","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"nucl-th","submitted_at":"2022-03-01T07:08:22Z","title_canon_sha256":"9017bfaa5dd18badd461d3202a49fa7c52fa79852bc55c362d18c20c1b3f28ff"},"schema_version":"1.0","source":{"id":"2203.00269","kind":"arxiv","version":1}},"canonical_sha256":"1b5f4093dd6b0d40dcecce54b7f85d6836995067773e36ad8ed9e92083ac1d59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b5f4093dd6b0d40dcecce54b7f85d6836995067773e36ad8ed9e92083ac1d59","first_computed_at":"2026-07-05T04:21:09.862914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:21:09.862914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jEfKTV4PnScP5PleqFhnoDszXo9tdl8nJb9DY/pheHQUeC/9LX/A3JFfCQXKpa+kJ9LgedyrukBpOBPVhHctBw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:21:09.863409Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.00269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8bb84729c2ea974a02eb3258cec547208a14cfb389b753f23a7bc1bf0f26e19","sha256:1f340d2ca579969dd6da9ecbf63b1b4c2eb2fd262c1401d30ef95b4a994456a0"],"state_sha256":"5d166f5b3abb1445e55be80ed7cf9ad685ccb70cf2d759487806eb8e00daf2a7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w24hk8MTXVUZYqHCwN6xHzOeNnCN6zilKS0HHCex8liWocP7iCKiUobcMTsBsKjQ+TujJPxluBjEWQdl1RgFDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:42:07.904336Z","bundle_sha256":"ec21a53562eb588c22f0856297c4eed32e69858eaf93e8911b004abd1cfd208a"}}