{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:VVKWSCMOKAL4PPX3LH2BRBVLHS","short_pith_number":"pith:VVKWSCMO","canonical_record":{"source":{"id":"1907.11439","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-07-26T08:58:02Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"753fcd23075e70f9428ab55df74e1a9590646f3bbc56306f76587f4a65f92cbf","abstract_canon_sha256":"c013b19b8870192bbf6283700872450f8bab980e117b2245e24fb7b49d5de436"},"schema_version":"1.0"},"canonical_sha256":"ad5569098e5017c7befb59f41886ab3c88d48e4fa3f7f7bd389abbb04fa1a1dc","source":{"kind":"arxiv","id":"1907.11439","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.11439","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"arxiv_version","alias_value":"1907.11439v1","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.11439","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"pith_short_12","alias_value":"VVKWSCMOKAL4","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VVKWSCMOKAL4PPX3","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VVKWSCMO","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:VVKWSCMOKAL4PPX3LH2BRBVLHS","target":"record","payload":{"canonical_record":{"source":{"id":"1907.11439","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-07-26T08:58:02Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"753fcd23075e70f9428ab55df74e1a9590646f3bbc56306f76587f4a65f92cbf","abstract_canon_sha256":"c013b19b8870192bbf6283700872450f8bab980e117b2245e24fb7b49d5de436"},"schema_version":"1.0"},"canonical_sha256":"ad5569098e5017c7befb59f41886ab3c88d48e4fa3f7f7bd389abbb04fa1a1dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:29.079581Z","signature_b64":"5f7sG+8r5WfU4gBiH4Yt+NcrbgcYfFu0jpGNXoYzCbGj/xrkjIFMHpuzAoPVcDMjCSEuO9fJCLnA6Mrdm0wcDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad5569098e5017c7befb59f41886ab3c88d48e4fa3f7f7bd389abbb04fa1a1dc","last_reissued_at":"2026-05-17T23:39:29.078934Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:29.078934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.11439","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":"2026-05-17T23:39:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"63vtI+g+BxARr++JaiFpUw1iZDLwEyBi7YW2ChhNMf0Ck5rDQrU1Yx8DXfstpJ1JuwG6pOIg8zIoJwqZvctsBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:27:32.715817Z"},"content_sha256":"bbb2c8b331899929a2a5bd20332db3f37c6f375a18c44964d63e8c468b7e5672","schema_version":"1.0","event_id":"sha256:bbb2c8b331899929a2a5bd20332db3f37c6f375a18c44964d63e8c468b7e5672"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:VVKWSCMOKAL4PPX3LH2BRBVLHS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reduced-order modeling of hemodynamics across macroscopic through mesoscopic circulation scales","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.med-ph","authors_text":"Didier Lucor (LIMSI), Olivier Adjoua (ISCD), St\\'ephanie Pitre-Champagnat (IR4M)","submitted_at":"2019-07-26T08:58:02Z","abstract_excerpt":"We propose a hemodynamic reduced-order model bridging macroscopic and meso-scopic blood flow circulation scales from arteries to capillaries. In silico tree like vascular geometries, mathematically described by graphs, are synthetically generated by means of stochastic growth algorithms constrained by statistical morphological and topological principles. Scale-specific pruning gradation of the tree is then proposed in order to fit computational budget requirement. Different compliant structural models with respect to pressure loads are used depending on vessel walls thicknesses and structures,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.11439","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":"2026-05-17T23:39:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6kFl6zrXMIa2pv9+cXN9mRQ2NaGjRnL85Lgre5cxIzR4RDNaZwWpEOnok0FbAJN1ijS3w5N5FcoQu9b01c+lAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:27:32.716645Z"},"content_sha256":"9b8a4cf33c80a894dc03ceafeddec48258e184e40cfb7ff1b32e564dd8dc60fd","schema_version":"1.0","event_id":"sha256:9b8a4cf33c80a894dc03ceafeddec48258e184e40cfb7ff1b32e564dd8dc60fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS/bundle.json","state_url":"https://pith.science/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS/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":"2026-08-08T12:27:32Z","links":{"resolver":"https://pith.science/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS","bundle":"https://pith.science/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS/bundle.json","state":"https://pith.science/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VVKWSCMOKAL4PPX3LH2BRBVLHS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VVKWSCMOKAL4PPX3LH2BRBVLHS","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":"c013b19b8870192bbf6283700872450f8bab980e117b2245e24fb7b49d5de436","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-07-26T08:58:02Z","title_canon_sha256":"753fcd23075e70f9428ab55df74e1a9590646f3bbc56306f76587f4a65f92cbf"},"schema_version":"1.0","source":{"id":"1907.11439","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.11439","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"arxiv_version","alias_value":"1907.11439v1","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.11439","created_at":"2026-05-17T23:39:29Z"},{"alias_kind":"pith_short_12","alias_value":"VVKWSCMOKAL4","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VVKWSCMOKAL4PPX3","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VVKWSCMO","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:9b8a4cf33c80a894dc03ceafeddec48258e184e40cfb7ff1b32e564dd8dc60fd","target":"graph","created_at":"2026-05-17T23:39:29Z","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":"We propose a hemodynamic reduced-order model bridging macroscopic and meso-scopic blood flow circulation scales from arteries to capillaries. In silico tree like vascular geometries, mathematically described by graphs, are synthetically generated by means of stochastic growth algorithms constrained by statistical morphological and topological principles. Scale-specific pruning gradation of the tree is then proposed in order to fit computational budget requirement. Different compliant structural models with respect to pressure loads are used depending on vessel walls thicknesses and structures,","authors_text":"Didier Lucor (LIMSI), Olivier Adjoua (ISCD), St\\'ephanie Pitre-Champagnat (IR4M)","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-07-26T08:58:02Z","title":"Reduced-order modeling of hemodynamics across macroscopic through mesoscopic circulation scales"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.11439","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:bbb2c8b331899929a2a5bd20332db3f37c6f375a18c44964d63e8c468b7e5672","target":"record","created_at":"2026-05-17T23:39:29Z","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":"c013b19b8870192bbf6283700872450f8bab980e117b2245e24fb7b49d5de436","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-07-26T08:58:02Z","title_canon_sha256":"753fcd23075e70f9428ab55df74e1a9590646f3bbc56306f76587f4a65f92cbf"},"schema_version":"1.0","source":{"id":"1907.11439","kind":"arxiv","version":1}},"canonical_sha256":"ad5569098e5017c7befb59f41886ab3c88d48e4fa3f7f7bd389abbb04fa1a1dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad5569098e5017c7befb59f41886ab3c88d48e4fa3f7f7bd389abbb04fa1a1dc","first_computed_at":"2026-05-17T23:39:29.078934Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:29.078934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5f7sG+8r5WfU4gBiH4Yt+NcrbgcYfFu0jpGNXoYzCbGj/xrkjIFMHpuzAoPVcDMjCSEuO9fJCLnA6Mrdm0wcDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:29.079581Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.11439","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bbb2c8b331899929a2a5bd20332db3f37c6f375a18c44964d63e8c468b7e5672","sha256:9b8a4cf33c80a894dc03ceafeddec48258e184e40cfb7ff1b32e564dd8dc60fd"],"state_sha256":"b3fe8d01e7ae4efb26916e2fc6c6193c73772b157877c4766e6b2139344e9533"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SWrZu/kf3KCsaCwowXnlp9eB3f4YaZnUjk7lZFfFWAoRdBopJTXbTqP1RvqEAuphv9QD1In6MqD9rUFm6arTAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T12:27:32.722629Z","bundle_sha256":"30b6ebaa60ae0fa446b381b8544c2817b65c7611585079d53349f11aa32ba71b"}}