{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:ASSGSOVMGIHCVE7NZDDIJQYVQL","short_pith_number":"pith:ASSGSOVM","canonical_record":{"source":{"id":"1501.02287","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2015-01-09T23:00:57Z","cross_cats_sorted":["math.NA","q-bio.TO"],"title_canon_sha256":"7e3a8589019fbe795f37777741783eba7949aca883a269c8dc52ecb34236f30f","abstract_canon_sha256":"3fc663ae12bca76cdd8d181c71287ebc2fa8bccc23ac5de5ed51bb5fafa15b5b"},"schema_version":"1.0"},"canonical_sha256":"04a4693aac320e2a93edc8c684c31582c6e6e9394f7a32029911d0f4edc43034","source":{"kind":"arxiv","id":"1501.02287","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.02287","created_at":"2026-05-18T01:22:01Z"},{"alias_kind":"arxiv_version","alias_value":"1501.02287v1","created_at":"2026-05-18T01:22:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.02287","created_at":"2026-05-18T01:22:01Z"},{"alias_kind":"pith_short_12","alias_value":"ASSGSOVMGIHC","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"ASSGSOVMGIHCVE7N","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"ASSGSOVM","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:ASSGSOVMGIHCVE7NZDDIJQYVQL","target":"record","payload":{"canonical_record":{"source":{"id":"1501.02287","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2015-01-09T23:00:57Z","cross_cats_sorted":["math.NA","q-bio.TO"],"title_canon_sha256":"7e3a8589019fbe795f37777741783eba7949aca883a269c8dc52ecb34236f30f","abstract_canon_sha256":"3fc663ae12bca76cdd8d181c71287ebc2fa8bccc23ac5de5ed51bb5fafa15b5b"},"schema_version":"1.0"},"canonical_sha256":"04a4693aac320e2a93edc8c684c31582c6e6e9394f7a32029911d0f4edc43034","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:01.883239Z","signature_b64":"Rr5ROp5tDgX0qdefAvyg6s3zfZv7G+N3s4N/R/egkLnnggXDgN0Nmz06UvHjAk1fvx0zMv9f9Ite7VBfS665CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04a4693aac320e2a93edc8c684c31582c6e6e9394f7a32029911d0f4edc43034","last_reissued_at":"2026-05-18T01:22:01.882765Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:01.882765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.02287","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":"2026-05-18T01:22:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m6YX8xWixTOElHJOcZwaT1x1T89sY/CTPg5cpMu5omqqySC9uC2yfK/UV1Lv8e9b3s3r8iGbiFeZzqF+0v0XDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T17:57:07.853903Z"},"content_sha256":"9654423856a9d615983d7ef333db9eff905392659fc37849353a123d36d19f96","schema_version":"1.0","event_id":"sha256:9654423856a9d615983d7ef333db9eff905392659fc37849353a123d36d19f96"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:ASSGSOVMGIHCVE7NZDDIJQYVQL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Immersed boundary-finite element model of fluid-structure interaction in the aortic root","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.NA","q-bio.TO"],"primary_cat":"cs.CE","authors_text":"Abe DeAnda, Boyce E. Griffith, Vittoria Flamini","submitted_at":"2015-01-09T23:00:57Z","abstract_excerpt":"It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in vivo imaging data become available. Herein, we describe fluid-structure interaction models of the aortic root, including the aortic valve leaflets, the sinuses of Valsalva, the aortic annulus, and the sinotubular junction, that employ a version of Peskin's immersed boundary (IB) method with a finite element (FE) description of the structural ela"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.02287","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":"2026-05-18T01:22:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KlpXzSD4daYo2PJSMVMFvtuZCc4XfXWQ8/d6T5zdft9Bo+s5MNPYgohI9ypABlvX8nOHeMKFq+EQPyD4lmquDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T17:57:07.854388Z"},"content_sha256":"433326f84b82ab81a79ff4e8924591bd721ba7fdd918a3f37fc2546e0d2e1afb","schema_version":"1.0","event_id":"sha256:433326f84b82ab81a79ff4e8924591bd721ba7fdd918a3f37fc2546e0d2e1afb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL/bundle.json","state_url":"https://pith.science/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL/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":"2026-06-23T17:57:07Z","links":{"resolver":"https://pith.science/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL","bundle":"https://pith.science/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL/bundle.json","state":"https://pith.science/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ASSGSOVMGIHCVE7NZDDIJQYVQL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ASSGSOVMGIHCVE7NZDDIJQYVQL","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":"3fc663ae12bca76cdd8d181c71287ebc2fa8bccc23ac5de5ed51bb5fafa15b5b","cross_cats_sorted":["math.NA","q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2015-01-09T23:00:57Z","title_canon_sha256":"7e3a8589019fbe795f37777741783eba7949aca883a269c8dc52ecb34236f30f"},"schema_version":"1.0","source":{"id":"1501.02287","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.02287","created_at":"2026-05-18T01:22:01Z"},{"alias_kind":"arxiv_version","alias_value":"1501.02287v1","created_at":"2026-05-18T01:22:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.02287","created_at":"2026-05-18T01:22:01Z"},{"alias_kind":"pith_short_12","alias_value":"ASSGSOVMGIHC","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"ASSGSOVMGIHCVE7N","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"ASSGSOVM","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:433326f84b82ab81a79ff4e8924591bd721ba7fdd918a3f37fc2546e0d2e1afb","target":"graph","created_at":"2026-05-18T01:22:01Z","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":"It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in vivo imaging data become available. Herein, we describe fluid-structure interaction models of the aortic root, including the aortic valve leaflets, the sinuses of Valsalva, the aortic annulus, and the sinotubular junction, that employ a version of Peskin's immersed boundary (IB) method with a finite element (FE) description of the structural ela","authors_text":"Abe DeAnda, Boyce E. Griffith, Vittoria Flamini","cross_cats":["math.NA","q-bio.TO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2015-01-09T23:00:57Z","title":"Immersed boundary-finite element model of fluid-structure interaction in the aortic root"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.02287","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":"sha256:9654423856a9d615983d7ef333db9eff905392659fc37849353a123d36d19f96","target":"record","created_at":"2026-05-18T01:22:01Z","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":"3fc663ae12bca76cdd8d181c71287ebc2fa8bccc23ac5de5ed51bb5fafa15b5b","cross_cats_sorted":["math.NA","q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2015-01-09T23:00:57Z","title_canon_sha256":"7e3a8589019fbe795f37777741783eba7949aca883a269c8dc52ecb34236f30f"},"schema_version":"1.0","source":{"id":"1501.02287","kind":"arxiv","version":1}},"canonical_sha256":"04a4693aac320e2a93edc8c684c31582c6e6e9394f7a32029911d0f4edc43034","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04a4693aac320e2a93edc8c684c31582c6e6e9394f7a32029911d0f4edc43034","first_computed_at":"2026-05-18T01:22:01.882765Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:01.882765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Rr5ROp5tDgX0qdefAvyg6s3zfZv7G+N3s4N/R/egkLnnggXDgN0Nmz06UvHjAk1fvx0zMv9f9Ite7VBfS665CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:01.883239Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.02287","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9654423856a9d615983d7ef333db9eff905392659fc37849353a123d36d19f96","sha256:433326f84b82ab81a79ff4e8924591bd721ba7fdd918a3f37fc2546e0d2e1afb"],"state_sha256":"33ada63077a321e3dc4ca85697cdbc56e3b46e21e283f7b9d728a6e7c51eef17"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tD/u4yiRMQ4Pwctf3vGpgt1xaBL9xUOODRY54v4cRiON4Z+GP6SqeEtscVIrRZywCnGuAZfo5WcYE7iXrz7kBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T17:57:07.856984Z","bundle_sha256":"642ec9ed2b36349c5d8d60695600bf68ab0ce91f3383ce623ac9daef427961f5"}}