{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:54JPYUYSMN2DZU5BODCUT7F3GI","short_pith_number":"pith:54JPYUYS","canonical_record":{"source":{"id":"2012.00917","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-02T01:15:48Z","cross_cats_sorted":[],"title_canon_sha256":"9d6eedee3abfdb768b5729ef8ec97659ceeb73903a35f1a193d3337f9911d37b","abstract_canon_sha256":"7692d136c58029c5d453937af576f028ba492e7a57c17a5794054f35e96ede59"},"schema_version":"1.0"},"canonical_sha256":"ef12fc531263743cd3a170c549fcbb3228c9d94a565acf74737e22c8554f1aa6","source":{"kind":"arxiv","id":"2012.00917","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.00917","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"arxiv_version","alias_value":"2012.00917v2","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.00917","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"pith_short_12","alias_value":"54JPYUYSMN2D","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"54JPYUYSMN2DZU5B","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"54JPYUYS","created_at":"2026-07-05T02:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:54JPYUYSMN2DZU5BODCUT7F3GI","target":"record","payload":{"canonical_record":{"source":{"id":"2012.00917","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-02T01:15:48Z","cross_cats_sorted":[],"title_canon_sha256":"9d6eedee3abfdb768b5729ef8ec97659ceeb73903a35f1a193d3337f9911d37b","abstract_canon_sha256":"7692d136c58029c5d453937af576f028ba492e7a57c17a5794054f35e96ede59"},"schema_version":"1.0"},"canonical_sha256":"ef12fc531263743cd3a170c549fcbb3228c9d94a565acf74737e22c8554f1aa6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:27:32.933374Z","signature_b64":"nsTV7dSUmX6lKCDeFNksi/zzpe5O3g+EEYqHdgQ+wEhRM2IxOL8VaxbXouZ3LZ+8UguRbte9r4oEmqx9LHdQAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef12fc531263743cd3a170c549fcbb3228c9d94a565acf74737e22c8554f1aa6","last_reissued_at":"2026-07-05T02:27:32.932805Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:27:32.932805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.00917","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":"2026-07-05T02:27:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zft4085ar+ZYH/6DhqM1uMiY2K8EBfyuaeyzslvA06mQ4y/ErJMKEjoaGxsglprnr2uPH7jeWwBI5q/Ke+NAAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:12:53.987104Z"},"content_sha256":"8afb728dff5a3c30fc7e5c759802b4aa6d9d0f70699934a8938f822fc880781e","schema_version":"1.0","event_id":"sha256:8afb728dff5a3c30fc7e5c759802b4aa6d9d0f70699934a8938f822fc880781e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:54JPYUYSMN2DZU5BODCUT7F3GI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modelling a $2.5 \\, M_{\\odot}$ Compact Star with Quark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Brazil), J.E. Horvath, P.H.R.S. Moraes (IAG-USP, Sao Paulo","submitted_at":"2020-12-02T01:15:48Z","abstract_excerpt":"The detection of an unexpected $\\sim 2.5 M_{\\odot}$ component in the gravitational wave event GW190814 has puzzled the community of High-Energy astrophysicists, since in the absence of further information it is not clear whether this is the heaviest \"neutron star\" ever detected or either the lightest black hole known, of a kind absent in the local neighbourhood. We show in this work a few possibilities for a model of the former, in the framework of three different quark matter models with and without anisotropy in the interior pressure. As representatives of classes of \"exotic\" solutions, we s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.00917","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/2012.00917/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":"2026-07-05T02:27:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XqhMYZZs9niuEa9phwiK6RTN3A4U8HJu2vmHWBzDjEsHkMX7tEH0FypLmZrU4sCDqecuNi6iDsVOe1PcpZL9Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:12:53.987604Z"},"content_sha256":"c473a38e62b6735885c05b7dadd423992527413704080805cf48f3a34857d4d6","schema_version":"1.0","event_id":"sha256:c473a38e62b6735885c05b7dadd423992527413704080805cf48f3a34857d4d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/54JPYUYSMN2DZU5BODCUT7F3GI/bundle.json","state_url":"https://pith.science/pith/54JPYUYSMN2DZU5BODCUT7F3GI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/54JPYUYSMN2DZU5BODCUT7F3GI/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":"2026-08-12T16:12:53Z","links":{"resolver":"https://pith.science/pith/54JPYUYSMN2DZU5BODCUT7F3GI","bundle":"https://pith.science/pith/54JPYUYSMN2DZU5BODCUT7F3GI/bundle.json","state":"https://pith.science/pith/54JPYUYSMN2DZU5BODCUT7F3GI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/54JPYUYSMN2DZU5BODCUT7F3GI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:54JPYUYSMN2DZU5BODCUT7F3GI","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":"7692d136c58029c5d453937af576f028ba492e7a57c17a5794054f35e96ede59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-02T01:15:48Z","title_canon_sha256":"9d6eedee3abfdb768b5729ef8ec97659ceeb73903a35f1a193d3337f9911d37b"},"schema_version":"1.0","source":{"id":"2012.00917","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.00917","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"arxiv_version","alias_value":"2012.00917v2","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.00917","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"pith_short_12","alias_value":"54JPYUYSMN2D","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"54JPYUYSMN2DZU5B","created_at":"2026-07-05T02:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"54JPYUYS","created_at":"2026-07-05T02:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:c473a38e62b6735885c05b7dadd423992527413704080805cf48f3a34857d4d6","target":"graph","created_at":"2026-07-05T02:27:32Z","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/2012.00917/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The detection of an unexpected $\\sim 2.5 M_{\\odot}$ component in the gravitational wave event GW190814 has puzzled the community of High-Energy astrophysicists, since in the absence of further information it is not clear whether this is the heaviest \"neutron star\" ever detected or either the lightest black hole known, of a kind absent in the local neighbourhood. We show in this work a few possibilities for a model of the former, in the framework of three different quark matter models with and without anisotropy in the interior pressure. As representatives of classes of \"exotic\" solutions, we s","authors_text":"Brazil), J.E. Horvath, P.H.R.S. Moraes (IAG-USP, Sao Paulo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-02T01:15:48Z","title":"Modelling a $2.5 \\, M_{\\odot}$ Compact Star with Quark Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.00917","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":"sha256:8afb728dff5a3c30fc7e5c759802b4aa6d9d0f70699934a8938f822fc880781e","target":"record","created_at":"2026-07-05T02:27:32Z","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":"7692d136c58029c5d453937af576f028ba492e7a57c17a5794054f35e96ede59","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-02T01:15:48Z","title_canon_sha256":"9d6eedee3abfdb768b5729ef8ec97659ceeb73903a35f1a193d3337f9911d37b"},"schema_version":"1.0","source":{"id":"2012.00917","kind":"arxiv","version":2}},"canonical_sha256":"ef12fc531263743cd3a170c549fcbb3228c9d94a565acf74737e22c8554f1aa6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef12fc531263743cd3a170c549fcbb3228c9d94a565acf74737e22c8554f1aa6","first_computed_at":"2026-07-05T02:27:32.932805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:27:32.932805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nsTV7dSUmX6lKCDeFNksi/zzpe5O3g+EEYqHdgQ+wEhRM2IxOL8VaxbXouZ3LZ+8UguRbte9r4oEmqx9LHdQAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:27:32.933374Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.00917","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8afb728dff5a3c30fc7e5c759802b4aa6d9d0f70699934a8938f822fc880781e","sha256:c473a38e62b6735885c05b7dadd423992527413704080805cf48f3a34857d4d6"],"state_sha256":"0663cd4710852746caed0ea5c14d09a0f10818611d7a3e9f20c60f8f06059038"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ny/Q0osdfo6DgCnQCaHJ75svCZB6oJGXtw7ab8Re0S/QPv1PU2d8TUAYPRq1QfQMaM/KcmsivIZsOLMvxo85CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T16:12:53.993030Z","bundle_sha256":"0be2d248e23e04b4a24e451e50214e025efd428616a34d7c44975c580b7e440d"}}