{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:D6V6YY2QOSHWVN4PHRA6H5O3PM","short_pith_number":"pith:D6V6YY2Q","canonical_record":{"source":{"id":"astro-ph/0002232","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-10T17:00:41Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"c8c7988d52fb4c7c6e0e0170a83f0f2c734392604b0c4eb60e0fad4ee672af4b","abstract_canon_sha256":"d05bdf23989562c9f5153d1ce15c9a4831dd7a16f15a76e5bd6ed961b1d03c45"},"schema_version":"1.0"},"canonical_sha256":"1fabec6350748f6ab78f3c41e3f5db7b32b2fb3607d55544374e84956e9dd2c7","source":{"kind":"arxiv","id":"astro-ph/0002232","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0002232","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0002232v1","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0002232","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"pith_short_12","alias_value":"D6V6YY2QOSHW","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"pith_short_16","alias_value":"D6V6YY2QOSHWVN4P","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"pith_short_8","alias_value":"D6V6YY2Q","created_at":"2026-07-04T15:20:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:D6V6YY2QOSHWVN4PHRA6H5O3PM","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0002232","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-10T17:00:41Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"c8c7988d52fb4c7c6e0e0170a83f0f2c734392604b0c4eb60e0fad4ee672af4b","abstract_canon_sha256":"d05bdf23989562c9f5153d1ce15c9a4831dd7a16f15a76e5bd6ed961b1d03c45"},"schema_version":"1.0"},"canonical_sha256":"1fabec6350748f6ab78f3c41e3f5db7b32b2fb3607d55544374e84956e9dd2c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:20:38.844926Z","signature_b64":"BKTl7QvcjHvRHC96I64bNIB/txYZAhBSRuVB3Uv6Y846ahRHqMmH8/O8LxrvfuFZf88+ni6VjuzZcJ+QKfIpCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1fabec6350748f6ab78f3c41e3f5db7b32b2fb3607d55544374e84956e9dd2c7","last_reissued_at":"2026-07-04T15:20:38.844509Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:20:38.844509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0002232","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:20:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RPZomdw8qj4waa8qGdmaqwqlK7GLrvINivinwFEunMtYEoVwmM7gOsfbg3pU/1McGPqkWHidLGzlrOGzZMNEAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T00:43:40.291048Z"},"content_sha256":"9abcb28c42f63fe80d8c3560ed41d9aa412080551ab26283f65aa0ec377dba0a","schema_version":"1.0","event_id":"sha256:9abcb28c42f63fe80d8c3560ed41d9aa412080551ab26283f65aa0ec377dba0a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:D6V6YY2QOSHWVN4PHRA6H5O3PM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron Star Structure and the Equation of State","license":"","headline":"","cross_cats":["nucl-th"],"primary_cat":"astro-ph","authors_text":"J. M. Lattimer, M. Prakash","submitted_at":"2000-02-10T17:00:41Z","abstract_excerpt":"The structure of neutron stars is considered from theoretical and observational perspectives. We demonstrate an important aspect of neutron star structure: the neutron star radius is primarily determined by the behavior of the pressure of matter in the vicinity of nuclear matter equilibrium density. In the event that extreme softening does not occur at these densities, the radius is virtually independent of the mass and is determined by the magnitude of the pressure. For equations of state with extreme softening, or those that are self-bound, the radius is more sensitive to the mass. Our resul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0002232","kind":"arxiv","version":1},"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/astro-ph/0002232/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":"2026-07-04T15:20:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zfHS3oYN5dg8n2ESq1sTopjmlwaUbgNttrFZkIutpm+7zqRmCiXJZndSVrbMyoxbxMGRdR2RQUDjXAXa0ZgDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T00:43:40.291536Z"},"content_sha256":"62b30e43f09c43238f25af59ca8064eca8c51277af61beb38a581c59fc4ec6b6","schema_version":"1.0","event_id":"sha256:62b30e43f09c43238f25af59ca8064eca8c51277af61beb38a581c59fc4ec6b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM/bundle.json","state_url":"https://pith.science/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM/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":"2026-08-09T00:43:40Z","links":{"resolver":"https://pith.science/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM","bundle":"https://pith.science/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM/bundle.json","state":"https://pith.science/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D6V6YY2QOSHWVN4PHRA6H5O3PM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:D6V6YY2QOSHWVN4PHRA6H5O3PM","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":"d05bdf23989562c9f5153d1ce15c9a4831dd7a16f15a76e5bd6ed961b1d03c45","cross_cats_sorted":["nucl-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-10T17:00:41Z","title_canon_sha256":"c8c7988d52fb4c7c6e0e0170a83f0f2c734392604b0c4eb60e0fad4ee672af4b"},"schema_version":"1.0","source":{"id":"astro-ph/0002232","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0002232","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0002232v1","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0002232","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"pith_short_12","alias_value":"D6V6YY2QOSHW","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"pith_short_16","alias_value":"D6V6YY2QOSHWVN4P","created_at":"2026-07-04T15:20:38Z"},{"alias_kind":"pith_short_8","alias_value":"D6V6YY2Q","created_at":"2026-07-04T15:20:38Z"}],"graph_snapshots":[{"event_id":"sha256:62b30e43f09c43238f25af59ca8064eca8c51277af61beb38a581c59fc4ec6b6","target":"graph","created_at":"2026-07-04T15:20:38Z","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/astro-ph/0002232/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The structure of neutron stars is considered from theoretical and observational perspectives. We demonstrate an important aspect of neutron star structure: the neutron star radius is primarily determined by the behavior of the pressure of matter in the vicinity of nuclear matter equilibrium density. In the event that extreme softening does not occur at these densities, the radius is virtually independent of the mass and is determined by the magnitude of the pressure. For equations of state with extreme softening, or those that are self-bound, the radius is more sensitive to the mass. Our resul","authors_text":"J. M. Lattimer, M. Prakash","cross_cats":["nucl-th"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-02-10T17:00:41Z","title":"Neutron Star Structure and the Equation of State"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0002232","kind":"arxiv","version":1},"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":"sha256:9abcb28c42f63fe80d8c3560ed41d9aa412080551ab26283f65aa0ec377dba0a","target":"record","created_at":"2026-07-04T15:20:38Z","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":"d05bdf23989562c9f5153d1ce15c9a4831dd7a16f15a76e5bd6ed961b1d03c45","cross_cats_sorted":["nucl-th"],"license":"","primary_cat":"astro-ph","submitted_at":"2000-02-10T17:00:41Z","title_canon_sha256":"c8c7988d52fb4c7c6e0e0170a83f0f2c734392604b0c4eb60e0fad4ee672af4b"},"schema_version":"1.0","source":{"id":"astro-ph/0002232","kind":"arxiv","version":1}},"canonical_sha256":"1fabec6350748f6ab78f3c41e3f5db7b32b2fb3607d55544374e84956e9dd2c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1fabec6350748f6ab78f3c41e3f5db7b32b2fb3607d55544374e84956e9dd2c7","first_computed_at":"2026-07-04T15:20:38.844509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:20:38.844509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BKTl7QvcjHvRHC96I64bNIB/txYZAhBSRuVB3Uv6Y846ahRHqMmH8/O8LxrvfuFZf88+ni6VjuzZcJ+QKfIpCg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:20:38.844926Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0002232","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9abcb28c42f63fe80d8c3560ed41d9aa412080551ab26283f65aa0ec377dba0a","sha256:62b30e43f09c43238f25af59ca8064eca8c51277af61beb38a581c59fc4ec6b6"],"state_sha256":"0b5f3804f11112d1d294829be1093bd18f652d782014df327a69bc6cac4aa046"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yiv8ppDtM3L/7ZiYfvKi9YycwQSe09yEPLqRUabp/YvNTjwjKedUfr5w4F2P3IgMTCocU/yv3IO+6Jvt6mlZCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T00:43:40.294762Z","bundle_sha256":"4af633f3b88cf65e218e9f63cdf0d6311735e2d691d361e738b601d5ef0bbc83"}}