{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2IL6SMMYYXPFCF26CU7LNDMZ3M","short_pith_number":"pith:2IL6SMMY","canonical_record":{"source":{"id":"1804.02003","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-05T18:01:11Z","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"title_canon_sha256":"f905865b54a7b925fa2f7cff20f9c6b6dd65a2adddba700cfa2598c7f8c4b564","abstract_canon_sha256":"e034596f31295b6562e5285b1f5a5483d188876255fbb76b618e2c3e059706d2"},"schema_version":"1.0"},"canonical_sha256":"d217e93198c5de51175e153eb68d99db062ecf88f67839e609f88118ac0c8b91","source":{"kind":"arxiv","id":"1804.02003","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.02003","created_at":"2026-05-18T00:07:07Z"},{"alias_kind":"arxiv_version","alias_value":"1804.02003v2","created_at":"2026-05-18T00:07:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02003","created_at":"2026-05-18T00:07:07Z"},{"alias_kind":"pith_short_12","alias_value":"2IL6SMMYYXPF","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2IL6SMMYYXPFCF26","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2IL6SMMY","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2IL6SMMYYXPFCF26CU7LNDMZ3M","target":"record","payload":{"canonical_record":{"source":{"id":"1804.02003","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-05T18:01:11Z","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"title_canon_sha256":"f905865b54a7b925fa2f7cff20f9c6b6dd65a2adddba700cfa2598c7f8c4b564","abstract_canon_sha256":"e034596f31295b6562e5285b1f5a5483d188876255fbb76b618e2c3e059706d2"},"schema_version":"1.0"},"canonical_sha256":"d217e93198c5de51175e153eb68d99db062ecf88f67839e609f88118ac0c8b91","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:07.955648Z","signature_b64":"cQJAu0VGwzw/sOfRUzz6IF+UW+Coj5c2wKQa2MhRVq4TOuLpczYcTYw3N0J2qczM3e7gw3cCJafsE3tkA8C6Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d217e93198c5de51175e153eb68d99db062ecf88f67839e609f88118ac0c8b91","last_reissued_at":"2026-05-18T00:07:07.954919Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:07.954919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.02003","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":"2026-05-18T00:07:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZJ/+Xg1dr/BnBZP3RMW19gffLKe96q/+nKatgJu0iWnQFc4SSBeppXWMZLvDUFCewzFf04/GVamzL8Xw1SRzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:38:19.361717Z"},"content_sha256":"43048a3e1cfe7c58612a16e1255cf297913a1a94e2d82428e6bad7e91e1586b2","schema_version":"1.0","event_id":"sha256:43048a3e1cfe7c58612a16e1255cf297913a1a94e2d82428e6bad7e91e1586b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2IL6SMMYYXPFCF26CU7LNDMZ3M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"General-relativistic neutron star evolutions with the discontinuous Galerkin method","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","physics.comp-ph"],"primary_cat":"gr-qc","authors_text":"Fran\\c{c}ois H\\'ebert, Lawrence E. Kidder, Saul A. Teukolsky","submitted_at":"2018-04-05T18:01:11Z","abstract_excerpt":"Simulations of relativistic hydrodynamics often need both high accuracy and robust shock-handling properties. The discontinuous Galerkin method combines these features --- a high order of convergence in regions where the solution is smooth and shock-capturing properties for regions where it is not --- with geometric flexibility and is therefore well suited to solve the partial differential equations describing astrophysical scenarios. We present here evolutions of a general-relativistic neutron star with the discontinuous Galerkin method. In these simulations, we simultaneously evolve the spac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02003","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":""},"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":"2026-05-18T00:07:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2+nPC/OJpY76Ce/mMuKuwFX45dzgNR9YtaKLWAuVOmmxByIgApTlRt1jjIIu+qr9Hx5yB1YfPmHfjzs0+E3BCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:38:19.362586Z"},"content_sha256":"ac6dd6ec3f60b725923b3b9d932402965ca6b10a941adcb253013dac332e33a4","schema_version":"1.0","event_id":"sha256:ac6dd6ec3f60b725923b3b9d932402965ca6b10a941adcb253013dac332e33a4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M/bundle.json","state_url":"https://pith.science/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M/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":"2026-05-31T15:38:19Z","links":{"resolver":"https://pith.science/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M","bundle":"https://pith.science/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M/bundle.json","state":"https://pith.science/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2IL6SMMYYXPFCF26CU7LNDMZ3M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2IL6SMMYYXPFCF26CU7LNDMZ3M","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":"e034596f31295b6562e5285b1f5a5483d188876255fbb76b618e2c3e059706d2","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-05T18:01:11Z","title_canon_sha256":"f905865b54a7b925fa2f7cff20f9c6b6dd65a2adddba700cfa2598c7f8c4b564"},"schema_version":"1.0","source":{"id":"1804.02003","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.02003","created_at":"2026-05-18T00:07:07Z"},{"alias_kind":"arxiv_version","alias_value":"1804.02003v2","created_at":"2026-05-18T00:07:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02003","created_at":"2026-05-18T00:07:07Z"},{"alias_kind":"pith_short_12","alias_value":"2IL6SMMYYXPF","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2IL6SMMYYXPFCF26","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2IL6SMMY","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:ac6dd6ec3f60b725923b3b9d932402965ca6b10a941adcb253013dac332e33a4","target":"graph","created_at":"2026-05-18T00:07:07Z","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"},"paper":{"abstract_excerpt":"Simulations of relativistic hydrodynamics often need both high accuracy and robust shock-handling properties. The discontinuous Galerkin method combines these features --- a high order of convergence in regions where the solution is smooth and shock-capturing properties for regions where it is not --- with geometric flexibility and is therefore well suited to solve the partial differential equations describing astrophysical scenarios. We present here evolutions of a general-relativistic neutron star with the discontinuous Galerkin method. In these simulations, we simultaneously evolve the spac","authors_text":"Fran\\c{c}ois H\\'ebert, Lawrence E. Kidder, Saul A. Teukolsky","cross_cats":["astro-ph.HE","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-05T18:01:11Z","title":"General-relativistic neutron star evolutions with the discontinuous Galerkin method"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02003","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":"sha256:43048a3e1cfe7c58612a16e1255cf297913a1a94e2d82428e6bad7e91e1586b2","target":"record","created_at":"2026-05-18T00:07:07Z","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":"e034596f31295b6562e5285b1f5a5483d188876255fbb76b618e2c3e059706d2","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-05T18:01:11Z","title_canon_sha256":"f905865b54a7b925fa2f7cff20f9c6b6dd65a2adddba700cfa2598c7f8c4b564"},"schema_version":"1.0","source":{"id":"1804.02003","kind":"arxiv","version":2}},"canonical_sha256":"d217e93198c5de51175e153eb68d99db062ecf88f67839e609f88118ac0c8b91","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d217e93198c5de51175e153eb68d99db062ecf88f67839e609f88118ac0c8b91","first_computed_at":"2026-05-18T00:07:07.954919Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:07.954919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cQJAu0VGwzw/sOfRUzz6IF+UW+Coj5c2wKQa2MhRVq4TOuLpczYcTYw3N0J2qczM3e7gw3cCJafsE3tkA8C6Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:07.955648Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.02003","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43048a3e1cfe7c58612a16e1255cf297913a1a94e2d82428e6bad7e91e1586b2","sha256:ac6dd6ec3f60b725923b3b9d932402965ca6b10a941adcb253013dac332e33a4"],"state_sha256":"43e80037211a3f9eae6e2b0f738ccd94531014036d9f2afae32ce8f07baf3716"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AARM/IRZFzc4AQ+Y39hKh1zg2dCdYuG5gbuIRMyi5ZNz4oU631qjOTelsLngio6jqiRRUt4CNxCH6pVkdLqiDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:38:19.366779Z","bundle_sha256":"4b51c5c1e85fd65be2650caf9e0bf422b9f47578b9b4315220c22d5ca3fdf153"}}