{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:L4FCAEMZD43K5YOKANM2YWAWBK","short_pith_number":"pith:L4FCAEMZ","canonical_record":{"source":{"id":"2007.10239","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-07-20T16:27:48Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"ff6bb66ae97c5fe1a0b80a7611625b2ed00034becded3274821e51faa57e905a","abstract_canon_sha256":"70d8983a5eb0b1ea404079c014657ab779e36660c2c773b154a185064e06f110"},"schema_version":"1.0"},"canonical_sha256":"5f0a2011991f36aee1ca0359ac58160a90299172d9d325fcfedf0bf18607d9a5","source":{"kind":"arxiv","id":"2007.10239","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.10239","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"arxiv_version","alias_value":"2007.10239v2","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.10239","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"pith_short_12","alias_value":"L4FCAEMZD43K","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"pith_short_16","alias_value":"L4FCAEMZD43K5YOK","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"pith_short_8","alias_value":"L4FCAEMZ","created_at":"2026-07-05T01:59:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:L4FCAEMZD43K5YOKANM2YWAWBK","target":"record","payload":{"canonical_record":{"source":{"id":"2007.10239","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-07-20T16:27:48Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"ff6bb66ae97c5fe1a0b80a7611625b2ed00034becded3274821e51faa57e905a","abstract_canon_sha256":"70d8983a5eb0b1ea404079c014657ab779e36660c2c773b154a185064e06f110"},"schema_version":"1.0"},"canonical_sha256":"5f0a2011991f36aee1ca0359ac58160a90299172d9d325fcfedf0bf18607d9a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:59:50.562937Z","signature_b64":"jZ9uebjlq1e/XbaM7+GcowxfsfKMO0JbWkmfBjANrdqa8DaiTxV70rBpEhxTsU7iZWGf+hOF6ZJ0XgAa5+JFAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f0a2011991f36aee1ca0359ac58160a90299172d9d325fcfedf0bf18607d9a5","last_reissued_at":"2026-07-05T01:59:50.562556Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:59:50.562556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.10239","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:59:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qxhxplw7H8T14zfICBC6bAI3k5NjR8ddJJsU7hmFZHkoI7FWUUHOFLtNpzuEglXA/VZ6aHMTM4w37XiNySxDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:47:32.498340Z"},"content_sha256":"64c30b1931f4416ba43879c3491aacc6052eba1f2448b5748f56306697d32ff9","schema_version":"1.0","event_id":"sha256:64c30b1931f4416ba43879c3491aacc6052eba1f2448b5748f56306697d32ff9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:L4FCAEMZD43K5YOKANM2YWAWBK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Structure of Quark Star: A Comparative Analysis of Bayesian Inference and Neural Network Based Modeling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"nucl-th","authors_text":"Prasanta Char, Silvia Traversi","submitted_at":"2020-07-20T16:27:48Z","abstract_excerpt":"In this work, we compare two powerful parameter estimation methods namely Bayesian inference and Neural Network based learning to study the quark matter equation of state with constant speed of sound parametrization and the structure of the quark stars within the two-family scenario. We use the mass and radius estimations from several X-ray sources and also the mass and tidal deformability measurements from gravitational wave events to constrain the parameters of our model. The results found from the two methods are consistent. The predicted speed of sound is compatible with the conformal limi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.10239","kind":"arxiv","version":2},"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/2007.10239/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":"2026-07-05T01:59:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gp0RzHRPjMp6Y62MVN+of4Htn9lqCYiozhn2AGuwcK0eBcDBvzoUA5HT467m1kVhgYa/r8IjGgIFx0mkKcIRAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:47:32.498876Z"},"content_sha256":"a9dbcf788365e0dfeb96f0945c57605e144627af1c8271357954ff47c0064d65","schema_version":"1.0","event_id":"sha256:a9dbcf788365e0dfeb96f0945c57605e144627af1c8271357954ff47c0064d65"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4FCAEMZD43K5YOKANM2YWAWBK/bundle.json","state_url":"https://pith.science/pith/L4FCAEMZD43K5YOKANM2YWAWBK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4FCAEMZD43K5YOKANM2YWAWBK/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":"2026-08-06T05:47:32Z","links":{"resolver":"https://pith.science/pith/L4FCAEMZD43K5YOKANM2YWAWBK","bundle":"https://pith.science/pith/L4FCAEMZD43K5YOKANM2YWAWBK/bundle.json","state":"https://pith.science/pith/L4FCAEMZD43K5YOKANM2YWAWBK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4FCAEMZD43K5YOKANM2YWAWBK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:L4FCAEMZD43K5YOKANM2YWAWBK","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":"70d8983a5eb0b1ea404079c014657ab779e36660c2c773b154a185064e06f110","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-07-20T16:27:48Z","title_canon_sha256":"ff6bb66ae97c5fe1a0b80a7611625b2ed00034becded3274821e51faa57e905a"},"schema_version":"1.0","source":{"id":"2007.10239","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.10239","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"arxiv_version","alias_value":"2007.10239v2","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.10239","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"pith_short_12","alias_value":"L4FCAEMZD43K","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"pith_short_16","alias_value":"L4FCAEMZD43K5YOK","created_at":"2026-07-05T01:59:50Z"},{"alias_kind":"pith_short_8","alias_value":"L4FCAEMZ","created_at":"2026-07-05T01:59:50Z"}],"graph_snapshots":[{"event_id":"sha256:a9dbcf788365e0dfeb96f0945c57605e144627af1c8271357954ff47c0064d65","target":"graph","created_at":"2026-07-05T01:59:50Z","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/2007.10239/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we compare two powerful parameter estimation methods namely Bayesian inference and Neural Network based learning to study the quark matter equation of state with constant speed of sound parametrization and the structure of the quark stars within the two-family scenario. We use the mass and radius estimations from several X-ray sources and also the mass and tidal deformability measurements from gravitational wave events to constrain the parameters of our model. The results found from the two methods are consistent. The predicted speed of sound is compatible with the conformal limi","authors_text":"Prasanta Char, Silvia Traversi","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-07-20T16:27:48Z","title":"Structure of Quark Star: A Comparative Analysis of Bayesian Inference and Neural Network Based Modeling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.10239","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":"sha256:64c30b1931f4416ba43879c3491aacc6052eba1f2448b5748f56306697d32ff9","target":"record","created_at":"2026-07-05T01:59:50Z","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":"70d8983a5eb0b1ea404079c014657ab779e36660c2c773b154a185064e06f110","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2020-07-20T16:27:48Z","title_canon_sha256":"ff6bb66ae97c5fe1a0b80a7611625b2ed00034becded3274821e51faa57e905a"},"schema_version":"1.0","source":{"id":"2007.10239","kind":"arxiv","version":2}},"canonical_sha256":"5f0a2011991f36aee1ca0359ac58160a90299172d9d325fcfedf0bf18607d9a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f0a2011991f36aee1ca0359ac58160a90299172d9d325fcfedf0bf18607d9a5","first_computed_at":"2026-07-05T01:59:50.562556Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:59:50.562556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jZ9uebjlq1e/XbaM7+GcowxfsfKMO0JbWkmfBjANrdqa8DaiTxV70rBpEhxTsU7iZWGf+hOF6ZJ0XgAa5+JFAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:59:50.562937Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.10239","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:64c30b1931f4416ba43879c3491aacc6052eba1f2448b5748f56306697d32ff9","sha256:a9dbcf788365e0dfeb96f0945c57605e144627af1c8271357954ff47c0064d65"],"state_sha256":"7a77168e3af16a7c2d63629bd1d1dbb175365fb23cec054732c0923fe3b8cf85"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Um8VLQGv806rFsOf5LAa810cygJptkgIcZ8gwYBm49LrShjWVq63gClwcCy2DJIx7vXBQes3OzgpUeC/iXLPAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:47:32.502278Z","bundle_sha256":"4687b81cc2b72ce9bded03272d75dd4b75d9e0f12d51bbb3f78c1a4a15c7d34b"}}