{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:VAVOQBY4E6SHV6OXONRY3BAQZO","short_pith_number":"pith:VAVOQBY4","canonical_record":{"source":{"id":"2312.17670","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-12-29T16:37:08Z","cross_cats_sorted":["cs.LG","q-bio.QM","q-bio.TO"],"title_canon_sha256":"60bf47beaca9b609a6fde4620e8b4150f4756ceac5a60a9524843527c01ba0d1","abstract_canon_sha256":"3311fc289c442e87c7d8b2431c2ed3b4302a4535e3b0edffdfcf3e2da08537c6"},"schema_version":"1.0"},"canonical_sha256":"a82ae8071c27a47af9d773638d8410cb92d50cdc6de1850fef26b48e07cd7aad","source":{"kind":"arxiv","id":"2312.17670","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.17670","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"arxiv_version","alias_value":"2312.17670v4","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.17670","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"pith_short_12","alias_value":"VAVOQBY4E6SH","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"pith_short_16","alias_value":"VAVOQBY4E6SHV6OX","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"pith_short_8","alias_value":"VAVOQBY4","created_at":"2026-07-05T11:33:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:VAVOQBY4E6SHV6OXONRY3BAQZO","target":"record","payload":{"canonical_record":{"source":{"id":"2312.17670","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-12-29T16:37:08Z","cross_cats_sorted":["cs.LG","q-bio.QM","q-bio.TO"],"title_canon_sha256":"60bf47beaca9b609a6fde4620e8b4150f4756ceac5a60a9524843527c01ba0d1","abstract_canon_sha256":"3311fc289c442e87c7d8b2431c2ed3b4302a4535e3b0edffdfcf3e2da08537c6"},"schema_version":"1.0"},"canonical_sha256":"a82ae8071c27a47af9d773638d8410cb92d50cdc6de1850fef26b48e07cd7aad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:33:47.385466Z","signature_b64":"dv4rcE25ec21gEzEzPR6GGmoG9Xq4zhCuRa5Og/+sKH/z9f234vJC8Qv6GoySvEFeft7ybosFMoo/XFEKNnNAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a82ae8071c27a47af9d773638d8410cb92d50cdc6de1850fef26b48e07cd7aad","last_reissued_at":"2026-07-05T11:33:47.384936Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:33:47.384936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.17670","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:33:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HYMHogSFEnNvBLmcgdqyG7mfwkkiSrd5VCR1ki4PzFJGya/RI+Jw0Lx263gcQ/bSLy13nZRsMu7G9OehIUqvAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T15:09:36.586229Z"},"content_sha256":"c20d21c742a85e23ebd6e05be875f1093d55792fbf6d4a3a021ba4fe6d693ccf","schema_version":"1.0","event_id":"sha256:c20d21c742a85e23ebd6e05be875f1093d55792fbf6d4a3a021ba4fe6d693ccf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:VAVOQBY4E6SHV6OXONRY3BAQZO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Benchmarking the CoW with the TopCoW Challenge: Topology-Aware Anatomical Segmentation of the Circle of Willis for CTA and MRA","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.LG","q-bio.QM","q-bio.TO"],"primary_cat":"cs.CV","authors_text":"Abdul Qayyum, Adam Hilbert, Adnan H. Siddiqui, Adri\\`a Casamitjana, Adrian Galdran, Alexander Koch, Amrish Soundararajan, Andrew Makmur, Anjany Sekuboyina, Arnau Oliver, Bastian Wittmann, Bene Wiestler, Birgitta K. Velthuis, Bjoern Menze, Cansu Yal\\c{c}in, Catherine Wurster, Chaolong Lin, Chengcheng Zhu, Chinmay Prabhakar, Clara Lisazo, Dahye Lee, Daniele Falcetta, Daniel Rueckert, Diana Waldmannstetter, Dietmar Frey, Dimitrios Rallios, Dominic LaBella, Elisa Colombo, Emmanuel Montagnon, Ezequiel de la Rosa, Fabian Isensee, Fabio Musio, Fernando Navarro, Florent Autrusseau, Florian Kofler, Francesco Galati, Guang-Zhong Yang, Haibin Huang, Hakim Baazaoui, Hannah-Lea Handelsmann, Hanxiao Zhang, Haoran Zhao, Henning M\\\"uller, Hongwei Bran Li, Houjing Huang, Huayu Wang, Hugo J. Kuijf, Huilin Zhao, Hyunjin Park, Ibrahim Ethem Hamamci, Iris N. Vos, Ivan Ezhov, James Hallinan, Jana Rieger, Jan S. Kirschke, Jeroen Bisschop, Jialu Liu, Joaquim Salvi, Johannes C. Paetzold, Jongyun Hwang, Julien H\\\"ammerli, Julius Holzschuh, Junqiang Chen, Kaiyuan Yang, Klaus Maier-Hein, Kwanseok Oh, Laura Westphal, Laurent Letourneau-Guillon, Luca Giancardo, Luciano H\\\"oher, Mahmud Mossa-Basha, Marek Wodzinski, Maria A. Zuluaga, Martin Menten, Matteo Delucchi, Maximilian R. Rokuss, Maysam Orouskhani, Minghui Zhang, Moona Mazher, Nesrin Mansouri, Nico Disch, Norman Juchler, Orhun Utku Aydin, Paula Casademunt, Pengcheng Shi, Philippe Bijlenga, Rachika E. Hamadache, Rami Al-Maskari, Roland Wiest, Satoru Tanioka, Shunzhi Zhu, Sinyoung Ra, Steven Niederer, Suprosanna Shit, Susanne Wegener, Sven Hirsch, Tatsat R. Patel, Ting Ma, Uma Maria Lal-Trehan Estrada, Valeriia Abramova, Vincent M. Tutino, Wei Liu, Xavier Llad\\'o, Xin You, Yannick Kirchhoff, Yihui Ma, Ynte M. Ruigrok, Yue Cui, Yuki Sato, Yun Gu, Yusheng Liu, Zehang Lin, Zehan Zhang","submitted_at":"2023-12-29T16:37:08Z","abstract_excerpt":"The Circle of Willis (CoW) is an important network of arteries connecting major circulations of the brain. Its vascular architecture is believed to affect the risk, severity, and clinical outcome of serious neurovascular diseases. However, characterizing the highly variable CoW anatomy is still a manual and time-consuming expert task. The CoW is usually imaged by two non-invasive angiographic imaging modalities, magnetic resonance angiography (MRA) and computed tomography angiography (CTA), but there exist limited datasets with annotations on CoW anatomy, especially for CTA. Therefore, we orga"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.17670","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2312.17670/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:33:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eUAWJLcqewwHt3ED1ET9+5rN20I8ObDHdMird4iZvJ3zKxACpuFk6mI6rk9RpoYJpJ6+G/60X4GdEbKTqmOVCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T15:09:36.586638Z"},"content_sha256":"449ac5e5ef6a14b44106fe8c2f55565fa151a546cb94d1e7c82d82d9cdddf993","schema_version":"1.0","event_id":"sha256:449ac5e5ef6a14b44106fe8c2f55565fa151a546cb94d1e7c82d82d9cdddf993"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VAVOQBY4E6SHV6OXONRY3BAQZO/bundle.json","state_url":"https://pith.science/pith/VAVOQBY4E6SHV6OXONRY3BAQZO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VAVOQBY4E6SHV6OXONRY3BAQZO/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":"2026-07-06T15:09:36Z","links":{"resolver":"https://pith.science/pith/VAVOQBY4E6SHV6OXONRY3BAQZO","bundle":"https://pith.science/pith/VAVOQBY4E6SHV6OXONRY3BAQZO/bundle.json","state":"https://pith.science/pith/VAVOQBY4E6SHV6OXONRY3BAQZO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VAVOQBY4E6SHV6OXONRY3BAQZO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:VAVOQBY4E6SHV6OXONRY3BAQZO","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":"3311fc289c442e87c7d8b2431c2ed3b4302a4535e3b0edffdfcf3e2da08537c6","cross_cats_sorted":["cs.LG","q-bio.QM","q-bio.TO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-12-29T16:37:08Z","title_canon_sha256":"60bf47beaca9b609a6fde4620e8b4150f4756ceac5a60a9524843527c01ba0d1"},"schema_version":"1.0","source":{"id":"2312.17670","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.17670","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"arxiv_version","alias_value":"2312.17670v4","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.17670","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"pith_short_12","alias_value":"VAVOQBY4E6SH","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"pith_short_16","alias_value":"VAVOQBY4E6SHV6OX","created_at":"2026-07-05T11:33:47Z"},{"alias_kind":"pith_short_8","alias_value":"VAVOQBY4","created_at":"2026-07-05T11:33:47Z"}],"graph_snapshots":[{"event_id":"sha256:449ac5e5ef6a14b44106fe8c2f55565fa151a546cb94d1e7c82d82d9cdddf993","target":"graph","created_at":"2026-07-05T11:33:47Z","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/2312.17670/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Circle of Willis (CoW) is an important network of arteries connecting major circulations of the brain. Its vascular architecture is believed to affect the risk, severity, and clinical outcome of serious neurovascular diseases. However, characterizing the highly variable CoW anatomy is still a manual and time-consuming expert task. The CoW is usually imaged by two non-invasive angiographic imaging modalities, magnetic resonance angiography (MRA) and computed tomography angiography (CTA), but there exist limited datasets with annotations on CoW anatomy, especially for CTA. Therefore, we orga","authors_text":"Abdul Qayyum, Adam Hilbert, Adnan H. Siddiqui, Adri\\`a Casamitjana, Adrian Galdran, Alexander Koch, Amrish Soundararajan, Andrew Makmur, Anjany Sekuboyina, Arnau Oliver, Bastian Wittmann, Bene Wiestler, Birgitta K. Velthuis, Bjoern Menze, Cansu Yal\\c{c}in, Catherine Wurster, Chaolong Lin, Chengcheng Zhu, Chinmay Prabhakar, Clara Lisazo, Dahye Lee, Daniele Falcetta, Daniel Rueckert, Diana Waldmannstetter, Dietmar Frey, Dimitrios Rallios, Dominic LaBella, Elisa Colombo, Emmanuel Montagnon, Ezequiel de la Rosa, Fabian Isensee, Fabio Musio, Fernando Navarro, Florent Autrusseau, Florian Kofler, Francesco Galati, Guang-Zhong Yang, Haibin Huang, Hakim Baazaoui, Hannah-Lea Handelsmann, Hanxiao Zhang, Haoran Zhao, Henning M\\\"uller, Hongwei Bran Li, Houjing Huang, Huayu Wang, Hugo J. Kuijf, Huilin Zhao, Hyunjin Park, Ibrahim Ethem Hamamci, Iris N. Vos, Ivan Ezhov, James Hallinan, Jana Rieger, Jan S. Kirschke, Jeroen Bisschop, Jialu Liu, Joaquim Salvi, Johannes C. Paetzold, Jongyun Hwang, Julien H\\\"ammerli, Julius Holzschuh, Junqiang Chen, Kaiyuan Yang, Klaus Maier-Hein, Kwanseok Oh, Laura Westphal, Laurent Letourneau-Guillon, Luca Giancardo, Luciano H\\\"oher, Mahmud Mossa-Basha, Marek Wodzinski, Maria A. Zuluaga, Martin Menten, Matteo Delucchi, Maximilian R. Rokuss, Maysam Orouskhani, Minghui Zhang, Moona Mazher, Nesrin Mansouri, Nico Disch, Norman Juchler, Orhun Utku Aydin, Paula Casademunt, Pengcheng Shi, Philippe Bijlenga, Rachika E. Hamadache, Rami Al-Maskari, Roland Wiest, Satoru Tanioka, Shunzhi Zhu, Sinyoung Ra, Steven Niederer, Suprosanna Shit, Susanne Wegener, Sven Hirsch, Tatsat R. Patel, Ting Ma, Uma Maria Lal-Trehan Estrada, Valeriia Abramova, Vincent M. Tutino, Wei Liu, Xavier Llad\\'o, Xin You, Yannick Kirchhoff, Yihui Ma, Ynte M. Ruigrok, Yue Cui, Yuki Sato, Yun Gu, Yusheng Liu, Zehang Lin, Zehan Zhang","cross_cats":["cs.LG","q-bio.QM","q-bio.TO"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-12-29T16:37:08Z","title":"Benchmarking the CoW with the TopCoW Challenge: Topology-Aware Anatomical Segmentation of the Circle of Willis for CTA and MRA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.17670","kind":"arxiv","version":4},"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:c20d21c742a85e23ebd6e05be875f1093d55792fbf6d4a3a021ba4fe6d693ccf","target":"record","created_at":"2026-07-05T11:33:47Z","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":"3311fc289c442e87c7d8b2431c2ed3b4302a4535e3b0edffdfcf3e2da08537c6","cross_cats_sorted":["cs.LG","q-bio.QM","q-bio.TO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-12-29T16:37:08Z","title_canon_sha256":"60bf47beaca9b609a6fde4620e8b4150f4756ceac5a60a9524843527c01ba0d1"},"schema_version":"1.0","source":{"id":"2312.17670","kind":"arxiv","version":4}},"canonical_sha256":"a82ae8071c27a47af9d773638d8410cb92d50cdc6de1850fef26b48e07cd7aad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a82ae8071c27a47af9d773638d8410cb92d50cdc6de1850fef26b48e07cd7aad","first_computed_at":"2026-07-05T11:33:47.384936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:33:47.384936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dv4rcE25ec21gEzEzPR6GGmoG9Xq4zhCuRa5Og/+sKH/z9f234vJC8Qv6GoySvEFeft7ybosFMoo/XFEKNnNAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:33:47.385466Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.17670","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c20d21c742a85e23ebd6e05be875f1093d55792fbf6d4a3a021ba4fe6d693ccf","sha256:449ac5e5ef6a14b44106fe8c2f55565fa151a546cb94d1e7c82d82d9cdddf993"],"state_sha256":"8c72ca00498963ac097d9509c17cfcaf5f85e0946d47aee26ae85b42e15f1ef7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HPLTlq8h07+ujXkAFNLz8RP0VqdA3/XkyBaEcTUOulcw1XMMS4lbZTCPl5Zhpkb3JxOBdQ+bNdf+7svfw+BFDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T15:09:36.588691Z","bundle_sha256":"5ed149c91ebdd84f69000c194197c12429b5aa5e4fbb6fbd1e8d8c4a84e0fbe4"}}