{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:RUVS7LPJUUDQYFYSKPFDB43CY7","short_pith_number":"pith:RUVS7LPJ","canonical_record":{"source":{"id":"1305.4736","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-05-21T07:10:50Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"437f199cbccf80b64a04de7550989529c4e4aa2af7b1c27c3577105932442abc","abstract_canon_sha256":"82b132057025e1abb84e6a9b2262f44cf60ef30b56e3520652cb4e0e496c3bd1"},"schema_version":"1.0"},"canonical_sha256":"8d2b2fade9a5070c171253ca30f362c7eb67b8775431ae63f354ab78b2a1fd2a","source":{"kind":"arxiv","id":"1305.4736","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4736","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4736v1","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4736","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"RUVS7LPJUUDQ","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"RUVS7LPJUUDQYFYS","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"RUVS7LPJ","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:RUVS7LPJUUDQYFYSKPFDB43CY7","target":"record","payload":{"canonical_record":{"source":{"id":"1305.4736","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-05-21T07:10:50Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"437f199cbccf80b64a04de7550989529c4e4aa2af7b1c27c3577105932442abc","abstract_canon_sha256":"82b132057025e1abb84e6a9b2262f44cf60ef30b56e3520652cb4e0e496c3bd1"},"schema_version":"1.0"},"canonical_sha256":"8d2b2fade9a5070c171253ca30f362c7eb67b8775431ae63f354ab78b2a1fd2a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:25:15.360224Z","signature_b64":"MU6ixfTKBdtR6elIg8de4bVmnIvctmOyIJLzn0h2B3tugK3J2vdO95VeD+wpxrlo+oLnOWbZFMEsydTcpVOvBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d2b2fade9a5070c171253ca30f362c7eb67b8775431ae63f354ab78b2a1fd2a","last_reissued_at":"2026-05-18T03:25:15.359673Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:25:15.359673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.4736","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":"2026-05-18T03:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gy9Tsx0iiKXQfrOpcBsrhbtCetb/9BZfntId5VOsRcVmafYoNFt5NyM5uxzSbCYK2GEVLmIeiiPUsSqhvatzBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:01:45.369815Z"},"content_sha256":"d1513a85fd37d42d75da06388a8e04072246c8ac572e51b03a56f8135ad114ee","schema_version":"1.0","event_id":"sha256:d1513a85fd37d42d75da06388a8e04072246c8ac572e51b03a56f8135ad114ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:RUVS7LPJUUDQYFYSKPFDB43CY7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two dimensional MRT LB model for compressible and incompressible flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"cond-mat.soft","authors_text":"Aiguo Xu, Feng Chen, Guangcai Zhang, Yonglong Wang","submitted_at":"2013-05-21T07:10:50Z","abstract_excerpt":"In the paper we extend the Multiple-Relaxation-Time (MRT) Lattice Boltzmann (LB) model proposed in [Europhys. Lett. \\textbf{90}, 54003 (2010)] so that it is suitable also for incompressible flows. To decrease the artificial oscillations, the convection term is discretized by the flux limiter scheme with splitting technique. New model is validated by some well-known benchmark tests, including Riemann problem and Couette flow, and satisfying agreements are obtained between the simulation results and analytical ones. In order to show the merit of LB model over traditional methods, the non-equilib"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4736","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":""},"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":"2026-05-18T03:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIktYnLE21joCOBRz4ZIjCIA900VMQH9ZF1CyR7T/tGSrX4az0bKZaQJchsir5DyM1J/WDoLaYKv5sT4LLnQDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:01:45.370167Z"},"content_sha256":"cd913d99884db3f59ecab3a933acd9c4d470d7fcf9c763b53d664af306d280d5","schema_version":"1.0","event_id":"sha256:cd913d99884db3f59ecab3a933acd9c4d470d7fcf9c763b53d664af306d280d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RUVS7LPJUUDQYFYSKPFDB43CY7/bundle.json","state_url":"https://pith.science/pith/RUVS7LPJUUDQYFYSKPFDB43CY7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RUVS7LPJUUDQYFYSKPFDB43CY7/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":"2026-06-04T19:01:45Z","links":{"resolver":"https://pith.science/pith/RUVS7LPJUUDQYFYSKPFDB43CY7","bundle":"https://pith.science/pith/RUVS7LPJUUDQYFYSKPFDB43CY7/bundle.json","state":"https://pith.science/pith/RUVS7LPJUUDQYFYSKPFDB43CY7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RUVS7LPJUUDQYFYSKPFDB43CY7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RUVS7LPJUUDQYFYSKPFDB43CY7","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":"82b132057025e1abb84e6a9b2262f44cf60ef30b56e3520652cb4e0e496c3bd1","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-05-21T07:10:50Z","title_canon_sha256":"437f199cbccf80b64a04de7550989529c4e4aa2af7b1c27c3577105932442abc"},"schema_version":"1.0","source":{"id":"1305.4736","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4736","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4736v1","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4736","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"RUVS7LPJUUDQ","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"RUVS7LPJUUDQYFYS","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"RUVS7LPJ","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:cd913d99884db3f59ecab3a933acd9c4d470d7fcf9c763b53d664af306d280d5","target":"graph","created_at":"2026-05-18T03:25:15Z","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":"In the paper we extend the Multiple-Relaxation-Time (MRT) Lattice Boltzmann (LB) model proposed in [Europhys. Lett. \\textbf{90}, 54003 (2010)] so that it is suitable also for incompressible flows. To decrease the artificial oscillations, the convection term is discretized by the flux limiter scheme with splitting technique. New model is validated by some well-known benchmark tests, including Riemann problem and Couette flow, and satisfying agreements are obtained between the simulation results and analytical ones. In order to show the merit of LB model over traditional methods, the non-equilib","authors_text":"Aiguo Xu, Feng Chen, Guangcai Zhang, Yonglong Wang","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-05-21T07:10:50Z","title":"Two dimensional MRT LB model for compressible and incompressible flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4736","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:d1513a85fd37d42d75da06388a8e04072246c8ac572e51b03a56f8135ad114ee","target":"record","created_at":"2026-05-18T03:25:15Z","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":"82b132057025e1abb84e6a9b2262f44cf60ef30b56e3520652cb4e0e496c3bd1","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-05-21T07:10:50Z","title_canon_sha256":"437f199cbccf80b64a04de7550989529c4e4aa2af7b1c27c3577105932442abc"},"schema_version":"1.0","source":{"id":"1305.4736","kind":"arxiv","version":1}},"canonical_sha256":"8d2b2fade9a5070c171253ca30f362c7eb67b8775431ae63f354ab78b2a1fd2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d2b2fade9a5070c171253ca30f362c7eb67b8775431ae63f354ab78b2a1fd2a","first_computed_at":"2026-05-18T03:25:15.359673Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:25:15.359673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MU6ixfTKBdtR6elIg8de4bVmnIvctmOyIJLzn0h2B3tugK3J2vdO95VeD+wpxrlo+oLnOWbZFMEsydTcpVOvBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:25:15.360224Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.4736","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1513a85fd37d42d75da06388a8e04072246c8ac572e51b03a56f8135ad114ee","sha256:cd913d99884db3f59ecab3a933acd9c4d470d7fcf9c763b53d664af306d280d5"],"state_sha256":"c7f638a041d136da4b93cc35ecce9369ce2a0dc8cece596be6526e0426d1ef4f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ceeyhHw7sFuVWrFyKvUfiLBcwMMZ2zlL0WLVAQucttojcnwHiHjHI/zecgG36QSWsRkoczfnQc6Grk5Oxo2sBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T19:01:45.372179Z","bundle_sha256":"50126c34fa9cb49f50e408d70d0c04711959e36b2450db3d1a2eff0441689ccd"}}