{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:7XFYXBNKSR2J7X7FBMHNEPCGVJ","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":"00f9fe267525d4098779e4645fa98a5a0a8a6e4bedc653f82a6dceab907810bb","cross_cats_sorted":["nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-26T18:10:16Z","title_canon_sha256":"3ba52e48967b487e580abd54170f9e828ada340699e2e042e0dc266164632e14"},"schema_version":"1.0","source":{"id":"2404.17647","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.17647","created_at":"2026-07-05T08:50:56Z"},{"alias_kind":"arxiv_version","alias_value":"2404.17647v2","created_at":"2026-07-05T08:50:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.17647","created_at":"2026-07-05T08:50:56Z"},{"alias_kind":"pith_short_12","alias_value":"7XFYXBNKSR2J","created_at":"2026-07-05T08:50:56Z"},{"alias_kind":"pith_short_16","alias_value":"7XFYXBNKSR2J7X7F","created_at":"2026-07-05T08:50:56Z"},{"alias_kind":"pith_short_8","alias_value":"7XFYXBNK","created_at":"2026-07-05T08:50:56Z"}],"graph_snapshots":[{"event_id":"sha256:949fc8d1e493c42d267fb2a36b3e27b2fde617e65346c15aa1393c768fa5d95f","target":"graph","created_at":"2026-07-05T08:50:56Z","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/2404.17647/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Numerous models of neutron star (NS) equation of state (EoS) exist based on different superdense-matter physics approaches. Nevertheless, some NS properties show universal (EoS-independent) relations. Here, we propose a novel class of such universalities. Despite different physics inputs, a wide class of realistic nucleonic, hyperonic, and hybrid EoS models can be accurately described using only three parameters. For a given EoS, these are the mass and radius of the maximum-mass NS (or pressure and density in its center) and the radius of a half-maximum-mass star. With such a parametrization, ","authors_text":"Dmitry D. Ofengeim, Peter S. Shternin, Tsvi Piran","cross_cats":["nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-26T18:10:16Z","title":"A three-parameter characterization of neutron stars' mass-radius relation and equation of state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.17647","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":"sha256:7f1687b73350653df4f99cd2166ab2456879af2d6a88eb46942c28ff630c65c4","target":"record","created_at":"2026-07-05T08:50:56Z","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":"00f9fe267525d4098779e4645fa98a5a0a8a6e4bedc653f82a6dceab907810bb","cross_cats_sorted":["nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-04-26T18:10:16Z","title_canon_sha256":"3ba52e48967b487e580abd54170f9e828ada340699e2e042e0dc266164632e14"},"schema_version":"1.0","source":{"id":"2404.17647","kind":"arxiv","version":2}},"canonical_sha256":"fdcb8b85aa94749fdfe50b0ed23c46aa6577dee8a49b442518d5a290dd12ea8e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdcb8b85aa94749fdfe50b0ed23c46aa6577dee8a49b442518d5a290dd12ea8e","first_computed_at":"2026-07-05T08:50:56.158412Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:50:56.158412Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sck2o4NOlZYdgibsVWt4CXQ5Q/Uqs51bh74CssUQaKaxgTwtADDLHAIrMV+ieocRfruBO0m9IAbg6KN9QJzeBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:50:56.158762Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.17647","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f1687b73350653df4f99cd2166ab2456879af2d6a88eb46942c28ff630c65c4","sha256:949fc8d1e493c42d267fb2a36b3e27b2fde617e65346c15aa1393c768fa5d95f"],"state_sha256":"ae1d8f53a2f66b4e28659f57631c946de9a5e96425672a6da225c52c61a068fd"}