{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:CS5LBQ4WGSLDSTAR74GECO5ACN","short_pith_number":"pith:CS5LBQ4W","canonical_record":{"source":{"id":"gr-qc/0011096","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2000-11-27T13:53:14Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"06acb8944bb54c1af597d2a1c44b3263c925ccffc11717085bfb221a53da0eaa","abstract_canon_sha256":"3acefcaeddd16eaf355f8cdb3404c6f1390ca18e8429338e092f7e12c65debca"},"schema_version":"1.0"},"canonical_sha256":"14bab0c3963496394c11ff0c413ba0135cec281e836e2aa5ffed2f7f1746773f","source":{"kind":"arxiv","id":"gr-qc/0011096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0011096","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0011096v1","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0011096","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"CS5LBQ4WGSLD","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"pith_short_16","alias_value":"CS5LBQ4WGSLDSTAR","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"pith_short_8","alias_value":"CS5LBQ4W","created_at":"2026-07-04T14:25:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:CS5LBQ4WGSLDSTAR74GECO5ACN","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/0011096","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2000-11-27T13:53:14Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"06acb8944bb54c1af597d2a1c44b3263c925ccffc11717085bfb221a53da0eaa","abstract_canon_sha256":"3acefcaeddd16eaf355f8cdb3404c6f1390ca18e8429338e092f7e12c65debca"},"schema_version":"1.0"},"canonical_sha256":"14bab0c3963496394c11ff0c413ba0135cec281e836e2aa5ffed2f7f1746773f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:25:19.922859Z","signature_b64":"6E2Go5R5O2nzaUhxI6W2aWxK5Iq/jIpBUMXXD3sjBw8j0o7FAIUE/76mrf42EB9WuKwTsZSRNblDh5AUhvqJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14bab0c3963496394c11ff0c413ba0135cec281e836e2aa5ffed2f7f1746773f","last_reissued_at":"2026-07-04T14:25:19.922499Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:25:19.922499Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/0011096","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":"2026-07-04T14:25:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DLxE6AJjmuxYgYxq/5FcmddYsru4VKjN46z802DSrpM5imto/yCG/zpJc1/jJgBRRyozL1b2QxXDJbJy3R5dAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:26:23.322994Z"},"content_sha256":"b1c2113fb6b6d1976b50d2e9ae921dd028efd7360d4a9e9dbdc1e47e9314f4da","schema_version":"1.0","event_id":"sha256:b1c2113fb6b6d1976b50d2e9ae921dd028efd7360d4a9e9dbdc1e47e9314f4da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:CS5LBQ4WGSLDSTAR74GECO5ACN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characteristic numerical relativity applied to hydrodynamic studies of neutron stars","license":"","headline":"","cross_cats":["astro-ph"],"primary_cat":"gr-qc","authors_text":"E. Mueller (MPA, F. Siebel, Garching), J.A. Font, P. Papadopoulos (Portsmouth)","submitted_at":"2000-11-27T13:53:14Z","abstract_excerpt":"We present tests and results of a new axisymmetric, fully general relativistic code capable of solving the coupled Einstein-matter system for a perfect fluid matter field. Our implementation is based on the Bondi metric, by which the spacetime is foliated with a family of outgoing light cones. We use high-resolution shock-capturing schemes to solve the fluid equations. The code can accurately maintain long-term stability of a spherically symmetric, relativistic, polytropic equilibrium model of a neutron star. In axisymmetry, we demonstrate global energy conservation of a perturbed neutron star"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0011096","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/gr-qc/0011096/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":"2026-07-04T14:25:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2cZnHpsQy4QXiTQ6ONtLvohmsHLgtIPfTbN5Su0KgBJGc2IBYctyY2BhDbiIvsp14TQTTMjRYvRqKN+tPI69Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:26:23.323499Z"},"content_sha256":"515689388770c378f4d9b782065b8d923be9ea867a026504cd2b128e6ceeb67d","schema_version":"1.0","event_id":"sha256:515689388770c378f4d9b782065b8d923be9ea867a026504cd2b128e6ceeb67d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CS5LBQ4WGSLDSTAR74GECO5ACN/bundle.json","state_url":"https://pith.science/pith/CS5LBQ4WGSLDSTAR74GECO5ACN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CS5LBQ4WGSLDSTAR74GECO5ACN/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":"2026-08-05T22:26:23Z","links":{"resolver":"https://pith.science/pith/CS5LBQ4WGSLDSTAR74GECO5ACN","bundle":"https://pith.science/pith/CS5LBQ4WGSLDSTAR74GECO5ACN/bundle.json","state":"https://pith.science/pith/CS5LBQ4WGSLDSTAR74GECO5ACN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CS5LBQ4WGSLDSTAR74GECO5ACN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:CS5LBQ4WGSLDSTAR74GECO5ACN","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":"3acefcaeddd16eaf355f8cdb3404c6f1390ca18e8429338e092f7e12c65debca","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"2000-11-27T13:53:14Z","title_canon_sha256":"06acb8944bb54c1af597d2a1c44b3263c925ccffc11717085bfb221a53da0eaa"},"schema_version":"1.0","source":{"id":"gr-qc/0011096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0011096","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0011096v1","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0011096","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"CS5LBQ4WGSLD","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"pith_short_16","alias_value":"CS5LBQ4WGSLDSTAR","created_at":"2026-07-04T14:25:19Z"},{"alias_kind":"pith_short_8","alias_value":"CS5LBQ4W","created_at":"2026-07-04T14:25:19Z"}],"graph_snapshots":[{"event_id":"sha256:515689388770c378f4d9b782065b8d923be9ea867a026504cd2b128e6ceeb67d","target":"graph","created_at":"2026-07-04T14:25:19Z","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/gr-qc/0011096/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present tests and results of a new axisymmetric, fully general relativistic code capable of solving the coupled Einstein-matter system for a perfect fluid matter field. Our implementation is based on the Bondi metric, by which the spacetime is foliated with a family of outgoing light cones. We use high-resolution shock-capturing schemes to solve the fluid equations. The code can accurately maintain long-term stability of a spherically symmetric, relativistic, polytropic equilibrium model of a neutron star. In axisymmetry, we demonstrate global energy conservation of a perturbed neutron star","authors_text":"E. Mueller (MPA, F. Siebel, Garching), J.A. Font, P. Papadopoulos (Portsmouth)","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2000-11-27T13:53:14Z","title":"Characteristic numerical relativity applied to hydrodynamic studies of neutron stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0011096","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:b1c2113fb6b6d1976b50d2e9ae921dd028efd7360d4a9e9dbdc1e47e9314f4da","target":"record","created_at":"2026-07-04T14:25:19Z","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":"3acefcaeddd16eaf355f8cdb3404c6f1390ca18e8429338e092f7e12c65debca","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"2000-11-27T13:53:14Z","title_canon_sha256":"06acb8944bb54c1af597d2a1c44b3263c925ccffc11717085bfb221a53da0eaa"},"schema_version":"1.0","source":{"id":"gr-qc/0011096","kind":"arxiv","version":1}},"canonical_sha256":"14bab0c3963496394c11ff0c413ba0135cec281e836e2aa5ffed2f7f1746773f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14bab0c3963496394c11ff0c413ba0135cec281e836e2aa5ffed2f7f1746773f","first_computed_at":"2026-07-04T14:25:19.922499Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:25:19.922499Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6E2Go5R5O2nzaUhxI6W2aWxK5Iq/jIpBUMXXD3sjBw8j0o7FAIUE/76mrf42EB9WuKwTsZSRNblDh5AUhvqJAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:25:19.922859Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0011096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1c2113fb6b6d1976b50d2e9ae921dd028efd7360d4a9e9dbdc1e47e9314f4da","sha256:515689388770c378f4d9b782065b8d923be9ea867a026504cd2b128e6ceeb67d"],"state_sha256":"5fe1a11fa185ba13f046edc9585d3830a8ecf2d51f4e25a46e5a24c76184cc11"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ADscKA0Xg5tvciI5tsyuypjEsuUxfXDiz0m+fhVlhqykSCR1jUkeoDcAJBLeeQoA70qymYB4H5ZETqqNGNQGCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T22:26:23.327056Z","bundle_sha256":"7fc3b49c6b6563e312942e85f38df5d7068582b9a81cdda18d159ed436c8a22b"}}