{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GZCTUTMB7LX2MV2TO76NXQPLMD","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":"68be5767ae6828cdb14378e1a8c2191d3fc85f63db4b7090d40b608939f49cc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2020-07-27T10:16:32Z","title_canon_sha256":"bbd772029078ed679a5acae75c88a0e00697d82e9b5e43f5822f3f57d4005215"},"schema_version":"1.0","source":{"id":"2007.13411","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.13411","created_at":"2026-07-05T01:22:23Z"},{"alias_kind":"arxiv_version","alias_value":"2007.13411v1","created_at":"2026-07-05T01:22:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.13411","created_at":"2026-07-05T01:22:23Z"},{"alias_kind":"pith_short_12","alias_value":"GZCTUTMB7LX2","created_at":"2026-07-05T01:22:23Z"},{"alias_kind":"pith_short_16","alias_value":"GZCTUTMB7LX2MV2T","created_at":"2026-07-05T01:22:23Z"},{"alias_kind":"pith_short_8","alias_value":"GZCTUTMB","created_at":"2026-07-05T01:22:23Z"}],"graph_snapshots":[{"event_id":"sha256:a597f5b1951b92e0444511bee59942f98fab812d7762db2b0ce8dd6a16ec7b41","target":"graph","created_at":"2026-07-05T01:22:23Z","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/2007.13411/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Computational fluid dynamics (CFD) studies have been increasingly used for blood flow simulations in intracranial aneurysms (ICAs). However, despite the continuous progress of body-fitted CFD solvers, generating a high quality mesh is still the bottleneck of the CFD simulation, and strongly affects the accuracy of the numerical solution. To overcome this challenge, which will allow preforming CFD simulations efficiently for a large number of aneurysm cases we use an Immersed Boundary (IB) method. The proposed scheme relies on Cartesian grids to solve the incompressible Navier-Stokes (N-S) equa","authors_text":"A. Wittek, B. F. Zwick, D. S. Lampropoulos, G. C. Bourantas, G. C. Kagadis, K. Miller, V. C. Loukopoulos","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2020-07-27T10:16:32Z","title":"Intracranial hemodynamics simulations: An efficient and accurate immersed boundary scheme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.13411","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":"sha256:1135ca2382036747c8483a82451e214ee4042835c25038226fef921d18dcd95c","target":"record","created_at":"2026-07-05T01:22:23Z","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":"68be5767ae6828cdb14378e1a8c2191d3fc85f63db4b7090d40b608939f49cc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2020-07-27T10:16:32Z","title_canon_sha256":"bbd772029078ed679a5acae75c88a0e00697d82e9b5e43f5822f3f57d4005215"},"schema_version":"1.0","source":{"id":"2007.13411","kind":"arxiv","version":1}},"canonical_sha256":"36453a4d81faefa6575377fcdbc1eb60fbb92332a0b7c1a87972be839b1a08d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36453a4d81faefa6575377fcdbc1eb60fbb92332a0b7c1a87972be839b1a08d1","first_computed_at":"2026-07-05T01:22:23.907223Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:22:23.907223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wm4OVq4O7HOapdAErSJKcGbeeVZGOOa9tHSLU+ggvuc686qsD1GHAS9icx4u1gt2L0jxga3z6D6OlRFcIeSdDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:22:23.907645Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.13411","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1135ca2382036747c8483a82451e214ee4042835c25038226fef921d18dcd95c","sha256:a597f5b1951b92e0444511bee59942f98fab812d7762db2b0ce8dd6a16ec7b41"],"state_sha256":"300f33180c6ed23848165546ee62853c776641fa40c35dc6c51bb9c084000c37"}