{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:L55C2OTIQ7PHBEHQMCUIE4JKQG","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":"e23cad090412878c4c3615d2ecde9dbc77f04c7484b5f20201d3369c97be944e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2017-12-15T05:56:02Z","title_canon_sha256":"a685acdf6977681e11d9045fde2af25b7236f7617b7d259f048514ff445f69b6"},"schema_version":"1.0","source":{"id":"1712.05546","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.05546","created_at":"2026-05-17T23:50:02Z"},{"alias_kind":"arxiv_version","alias_value":"1712.05546v2","created_at":"2026-05-17T23:50:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.05546","created_at":"2026-05-17T23:50:02Z"},{"alias_kind":"pith_short_12","alias_value":"L55C2OTIQ7PH","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"L55C2OTIQ7PHBEHQ","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"L55C2OTI","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:a7c34afa1eff12c01a03a5ae850ec0bf0618d9b65e51456f59623efe1785e515","target":"graph","created_at":"2026-05-17T23:50:02Z","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":"This paper studies the two-stage fourth-order accurate time discretization \\cite{LI-DU:2016} and applies it to special relativistic hydrodynamical equations. It is shown that new two-stage fourth-order accurate time discretizations can be proposed. With the aid of the direct Eulerian GRP (generalized Riemann problem) methods \\cite{Yang-He-Tang:2011,Yang-Tang:2012} and the analytical resolution of the local \"quasi 1D\" GRP, the two-stage fourth-order accurate time discretizations are successfully implemented for the 1D and 2D special relativistic hydrodynamical equations. Several numerical exper","authors_text":"Huazhong Tang, Yuhuan Yuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2017-12-15T05:56:02Z","title":"Two-stage fourth-order accurate time discretizations for 1D and 2D special relativistic hydrodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.05546","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":"sha256:958da13260508ea866bbfc172b31a3c52a7a6f30a3528bf8e503d84e6617f186","target":"record","created_at":"2026-05-17T23:50:02Z","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":"e23cad090412878c4c3615d2ecde9dbc77f04c7484b5f20201d3369c97be944e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2017-12-15T05:56:02Z","title_canon_sha256":"a685acdf6977681e11d9045fde2af25b7236f7617b7d259f048514ff445f69b6"},"schema_version":"1.0","source":{"id":"1712.05546","kind":"arxiv","version":2}},"canonical_sha256":"5f7a2d3a6887de7090f060a882712a819db9a0f1db5876062545f087bb042ae9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f7a2d3a6887de7090f060a882712a819db9a0f1db5876062545f087bb042ae9","first_computed_at":"2026-05-17T23:50:02.720208Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:02.720208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+5yvtlEGPZDqQFh+6cOk8gX6/UNK0cwDX9F14k2udf6roD9i/0tXSAblm/QjS6gyoNMEUOeVF67FU8fTrpiRDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:02.720873Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.05546","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:958da13260508ea866bbfc172b31a3c52a7a6f30a3528bf8e503d84e6617f186","sha256:a7c34afa1eff12c01a03a5ae850ec0bf0618d9b65e51456f59623efe1785e515"],"state_sha256":"95a12f8621bce3fb0db3dd150743e121eda553dcb5358918ad9d5c323a183ed0"}