{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:F7XPHVVYQFOATVCUUN3NP2JUF4","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":"b77eee60d455a9288cf9e72fb53002a6a419bb3d91d5a7aa2b4fd7974e58bb0d","cross_cats_sorted":["gr-qc","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-20T19:37:40Z","title_canon_sha256":"c8508ec3b9779215d726d2b6d6e7366da377d1075597a1162ac332578d651c5d"},"schema_version":"1.0","source":{"id":"2112.10824","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.10824","created_at":"2026-07-05T04:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"2112.10824v2","created_at":"2026-07-05T04:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.10824","created_at":"2026-07-05T04:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"F7XPHVVYQFOA","created_at":"2026-07-05T04:52:46Z"},{"alias_kind":"pith_short_16","alias_value":"F7XPHVVYQFOATVCU","created_at":"2026-07-05T04:52:46Z"},{"alias_kind":"pith_short_8","alias_value":"F7XPHVVY","created_at":"2026-07-05T04:52:46Z"}],"graph_snapshots":[{"event_id":"sha256:2e718016eb956fdeeaa08c54b0b0382825f215c21f9d492471c6edfb04acb1d9","target":"graph","created_at":"2026-07-05T04:52:46Z","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/2112.10824/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Instead of parameterizing the pressure-density relation of a neutron star (NS), one can parameterize its macroscopic properties such as mass ($M$), radius ($R$), and dimensionless tidal deformability ($\\Lambda$) to infer the equation of state (EoS) combining electromagnetic and gravitational wave (GW) observations. We present a new method to parameterize $R(M)$ and $\\Lambda(M)$ relations, which approximate the candidate EoSs with accuracy better than 5\\% for all masses and span a broad region of $M-R-\\Lambda$ plane. Using this method we combine the $M-\\Lambda$ measurement from GW170817 and GW1","authors_text":"Bhaskar Biswas, Sayak Datta","cross_cats":["gr-qc","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-20T19:37:40Z","title":"Constraining neutron star properties with a new equation of state insensitive approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.10824","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":"sha256:6cd2c0e235877a50e27e2e8cba618e0882def05fd0674271ab1caf1f91cdece4","target":"record","created_at":"2026-07-05T04:52:46Z","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":"b77eee60d455a9288cf9e72fb53002a6a419bb3d91d5a7aa2b4fd7974e58bb0d","cross_cats_sorted":["gr-qc","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-20T19:37:40Z","title_canon_sha256":"c8508ec3b9779215d726d2b6d6e7366da377d1075597a1162ac332578d651c5d"},"schema_version":"1.0","source":{"id":"2112.10824","kind":"arxiv","version":2}},"canonical_sha256":"2feef3d6b8815c09d454a376d7e9342f21da1d59031c16b22d7cbd649f227aa2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2feef3d6b8815c09d454a376d7e9342f21da1d59031c16b22d7cbd649f227aa2","first_computed_at":"2026-07-05T04:52:46.814471Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:52:46.814471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g5W2xO21soLTrm+1VgHLpQ9993UfUaAiTedm0unvWDg4h9LLs3LzmxMruhs7YzmSajtwDBGdLBP02V5M9BxNAA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:52:46.814934Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.10824","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6cd2c0e235877a50e27e2e8cba618e0882def05fd0674271ab1caf1f91cdece4","sha256:2e718016eb956fdeeaa08c54b0b0382825f215c21f9d492471c6edfb04acb1d9"],"state_sha256":"4ab2d6ef6607d83bdceb6ecf8e2862d90d68efe3798b6cfaccf13affce742a84"}