{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:M46KGH32R5CM52CYFFQQXPAL3U","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":"41527d4799eeb033c8cb6c24ec65ceca366e57e0f6338fe805118f9a99bfef6b","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-02T12:36:09Z","title_canon_sha256":"967cec3f3233dc261fb8ac3c8c0bfe7f573479755926f93b178eda38e9da5b6f"},"schema_version":"1.0","source":{"id":"1108.0559","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0559","created_at":"2026-05-18T04:02:00Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0559v2","created_at":"2026-05-18T04:02:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0559","created_at":"2026-05-18T04:02:00Z"},{"alias_kind":"pith_short_12","alias_value":"M46KGH32R5CM","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"M46KGH32R5CM52CY","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"M46KGH32","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:e25f4d5b55937123c6f2763159445a08e29f346ff08b1175d1df157bb8056aef","target":"graph","created_at":"2026-05-18T04:02:00Z","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"},"paper":{"abstract_excerpt":"The recent measurement of a $1.97\\pm 0.04$ solar-mass pulsar places a stringent lower bound on the maximum mass of compact stars and therefore challenges the existence of any agents that soften the equation of state of ultra-dense matter. We investigate whether hyperons and/or quark matter can be accommodated in massive compact stars by constructing an equation of state based on a combination of phenomenological relativistic hyper-nuclear density functional and an effective model of quantum chromodynamics (the Nambu-Jona-Lasinio model). Stable configurations are obtained with $M \\ge 1.97 M_{\\s","authors_text":"Armen Sedrakian, Luca Bonanno","cross_cats":["hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-02T12:36:09Z","title":"Composition and stability of hybrid stars with hyperons and quark color-superconductivity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0559","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:ad4a6ad23b8eb7ebdee273dd81768b4f19a0bc67112684a06e6a70ebe7454776","target":"record","created_at":"2026-05-18T04:02:00Z","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":"41527d4799eeb033c8cb6c24ec65ceca366e57e0f6338fe805118f9a99bfef6b","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-02T12:36:09Z","title_canon_sha256":"967cec3f3233dc261fb8ac3c8c0bfe7f573479755926f93b178eda38e9da5b6f"},"schema_version":"1.0","source":{"id":"1108.0559","kind":"arxiv","version":2}},"canonical_sha256":"673ca31f7a8f44cee85829610bbc0bdd139d1ee7e16fa10d45f9dadbde40d74a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"673ca31f7a8f44cee85829610bbc0bdd139d1ee7e16fa10d45f9dadbde40d74a","first_computed_at":"2026-05-18T04:02:00.692151Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:02:00.692151Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kMQX7m1B79PjCoMPChNaHY6nBSrzxMYoYzzNOCLWE4ocxj0TlissdsOgQWxkV7ic22Yczcl/RHLn2z35dI7/Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:02:00.693024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0559","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad4a6ad23b8eb7ebdee273dd81768b4f19a0bc67112684a06e6a70ebe7454776","sha256:e25f4d5b55937123c6f2763159445a08e29f346ff08b1175d1df157bb8056aef"],"state_sha256":"39981380c82d2b8ddd4aea4a29b3f3cb8d3e2df9bf3d7882f9f8e25bb33db206"}