{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:JE3I5JOWN7CWDO5VGSVNUGPYFU","short_pith_number":"pith:JE3I5JOW","canonical_record":{"source":{"id":"2204.09573","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-20T16:14:43Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"a958408a59c25e13ad39d9dff6eee34763374c0778345b8a322bd764192a61df","abstract_canon_sha256":"61e7613500d55b7dfcb4a53aecbcf72ed06d7aa53cd70ddf8517340212a4c271"},"schema_version":"1.0"},"canonical_sha256":"49368ea5d66fc561bbb534aada19f82d36975508842845d4325892b606ba04bf","source":{"kind":"arxiv","id":"2204.09573","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.09573","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"2204.09573v1","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.09573","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"JE3I5JOWN7CW","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"pith_short_16","alias_value":"JE3I5JOWN7CWDO5V","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"pith_short_8","alias_value":"JE3I5JOW","created_at":"2026-07-05T06:04:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:JE3I5JOWN7CWDO5VGSVNUGPYFU","target":"record","payload":{"canonical_record":{"source":{"id":"2204.09573","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-20T16:14:43Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"a958408a59c25e13ad39d9dff6eee34763374c0778345b8a322bd764192a61df","abstract_canon_sha256":"61e7613500d55b7dfcb4a53aecbcf72ed06d7aa53cd70ddf8517340212a4c271"},"schema_version":"1.0"},"canonical_sha256":"49368ea5d66fc561bbb534aada19f82d36975508842845d4325892b606ba04bf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:04:50.644069Z","signature_b64":"V2LBAnaSEz+01L/z4Y+hZFCjRFwWsZi136WC+DywXsvmehiqqw8ySwjUPbIi1975GrH+mAFbpyWaBnT7mYhBBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49368ea5d66fc561bbb534aada19f82d36975508842845d4325892b606ba04bf","last_reissued_at":"2026-07-05T06:04:50.643581Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:04:50.643581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2204.09573","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":"2026-07-05T06:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MdNwdHDMzaLVwRiWEshsVsVaioQ2KIVMORRYN3y3/D7k60ljf2S24n2vecOz3WCpPppntRKuJWR4ArLcfM5NDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T23:47:21.968767Z"},"content_sha256":"fba7488bbcd6707b1bcb6ea4b641f5e053919fdfc1cc5543ee702da8c4ca13cf","schema_version":"1.0","event_id":"sha256:fba7488bbcd6707b1bcb6ea4b641f5e053919fdfc1cc5543ee702da8c4ca13cf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:JE3I5JOWN7CWDO5VGSVNUGPYFU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fetal Brain Tissue Annotation and Segmentation Challenge Results","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Abdul Qayyum, Ali Gholipour, Andras Jakab, Andriy Myronenko, Bella Specktor Fadida, Bjoern Menze, Bruno Oliveira, Dafna Ben Bashat, Daguang Xu, Daniel Sobotka, Dan Wu, Davood Karimi, Domenec Puig, Donghyeon Kim, Georg Langs, Guiming Dong, Guotai Wang, Hamza Kebiri, Hao Fu, Hao Liu, Helena R. Torres, Hongwei Li, Hui Ji, Huiquan Zhang, Hyun Gi Kim, Jintai Chen, Jo\\~ao L. Vila\\c{c}a, Juanying Xie, Kelly Payette, Kuanlun Liao, Lana Vasung, Leo Joskowicz, Liao Weibin, Lisheng Wang, Li Xuesong, Li Zhao, Lucas Fidon, Lv Yi, Maria Inmaculada Villanueva, Md Mahfuzur Rahman Siddiquee, Meritxell Bach Cuadra, Michael Aertsen, Mireia Aleny\\`a, Moona Mazher, Netanell Avisdris, Ori Ben-Zvi, Oscar Camara, Priscille de Dumast, Roxane Licandro, Tom Vercauteren, Xinyi Xu, Yang Lin, Ying Peng, Yixuan Wu, Yuchen Pei, Yunzhi Xu, Zelin Zhang, ZunHyan Rieu","submitted_at":"2022-04-20T16:14:43Z","abstract_excerpt":"In-utero fetal MRI is emerging as an important tool in the diagnosis and analysis of the developing human brain. Automatic segmentation of the developing fetal brain is a vital step in the quantitative analysis of prenatal neurodevelopment both in the research and clinical context. However, manual segmentation of cerebral structures is time-consuming and prone to error and inter-observer variability. Therefore, we organized the Fetal Tissue Annotation (FeTA) Challenge in 2021 in order to encourage the development of automatic segmentation algorithms on an international level. The challenge uti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.09573","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2204.09573/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":"2026-07-05T06:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G1x90S8X1yfP/pI4CVTaazX7xRS8uWidxNc4xg3kSdOf3IZSdvuGhKsfO4T0ZggHNPtjhfm0UgphCEKDaMClDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T23:47:21.969274Z"},"content_sha256":"cf84719209b7b73901ca85134abe76337559ee8d52f644026bf5d63f4faba44b","schema_version":"1.0","event_id":"sha256:cf84719209b7b73901ca85134abe76337559ee8d52f644026bf5d63f4faba44b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU/bundle.json","state_url":"https://pith.science/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU/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":"2026-08-19T23:47:21Z","links":{"resolver":"https://pith.science/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU","bundle":"https://pith.science/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU/bundle.json","state":"https://pith.science/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JE3I5JOWN7CWDO5VGSVNUGPYFU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:JE3I5JOWN7CWDO5VGSVNUGPYFU","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":"61e7613500d55b7dfcb4a53aecbcf72ed06d7aa53cd70ddf8517340212a4c271","cross_cats_sorted":["cs.CV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-20T16:14:43Z","title_canon_sha256":"a958408a59c25e13ad39d9dff6eee34763374c0778345b8a322bd764192a61df"},"schema_version":"1.0","source":{"id":"2204.09573","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.09573","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"2204.09573v1","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.09573","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"JE3I5JOWN7CW","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"pith_short_16","alias_value":"JE3I5JOWN7CWDO5V","created_at":"2026-07-05T06:04:50Z"},{"alias_kind":"pith_short_8","alias_value":"JE3I5JOW","created_at":"2026-07-05T06:04:50Z"}],"graph_snapshots":[{"event_id":"sha256:cf84719209b7b73901ca85134abe76337559ee8d52f644026bf5d63f4faba44b","target":"graph","created_at":"2026-07-05T06:04:50Z","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/2204.09573/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In-utero fetal MRI is emerging as an important tool in the diagnosis and analysis of the developing human brain. Automatic segmentation of the developing fetal brain is a vital step in the quantitative analysis of prenatal neurodevelopment both in the research and clinical context. However, manual segmentation of cerebral structures is time-consuming and prone to error and inter-observer variability. Therefore, we organized the Fetal Tissue Annotation (FeTA) Challenge in 2021 in order to encourage the development of automatic segmentation algorithms on an international level. The challenge uti","authors_text":"Abdul Qayyum, Ali Gholipour, Andras Jakab, Andriy Myronenko, Bella Specktor Fadida, Bjoern Menze, Bruno Oliveira, Dafna Ben Bashat, Daguang Xu, Daniel Sobotka, Dan Wu, Davood Karimi, Domenec Puig, Donghyeon Kim, Georg Langs, Guiming Dong, Guotai Wang, Hamza Kebiri, Hao Fu, Hao Liu, Helena R. Torres, Hongwei Li, Hui Ji, Huiquan Zhang, Hyun Gi Kim, Jintai Chen, Jo\\~ao L. Vila\\c{c}a, Juanying Xie, Kelly Payette, Kuanlun Liao, Lana Vasung, Leo Joskowicz, Liao Weibin, Lisheng Wang, Li Xuesong, Li Zhao, Lucas Fidon, Lv Yi, Maria Inmaculada Villanueva, Md Mahfuzur Rahman Siddiquee, Meritxell Bach Cuadra, Michael Aertsen, Mireia Aleny\\`a, Moona Mazher, Netanell Avisdris, Ori Ben-Zvi, Oscar Camara, Priscille de Dumast, Roxane Licandro, Tom Vercauteren, Xinyi Xu, Yang Lin, Ying Peng, Yixuan Wu, Yuchen Pei, Yunzhi Xu, Zelin Zhang, ZunHyan Rieu","cross_cats":["cs.CV"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-20T16:14:43Z","title":"Fetal Brain Tissue Annotation and Segmentation Challenge Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.09573","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:fba7488bbcd6707b1bcb6ea4b641f5e053919fdfc1cc5543ee702da8c4ca13cf","target":"record","created_at":"2026-07-05T06:04:50Z","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":"61e7613500d55b7dfcb4a53aecbcf72ed06d7aa53cd70ddf8517340212a4c271","cross_cats_sorted":["cs.CV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-20T16:14:43Z","title_canon_sha256":"a958408a59c25e13ad39d9dff6eee34763374c0778345b8a322bd764192a61df"},"schema_version":"1.0","source":{"id":"2204.09573","kind":"arxiv","version":1}},"canonical_sha256":"49368ea5d66fc561bbb534aada19f82d36975508842845d4325892b606ba04bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49368ea5d66fc561bbb534aada19f82d36975508842845d4325892b606ba04bf","first_computed_at":"2026-07-05T06:04:50.643581Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:04:50.643581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V2LBAnaSEz+01L/z4Y+hZFCjRFwWsZi136WC+DywXsvmehiqqw8ySwjUPbIi1975GrH+mAFbpyWaBnT7mYhBBA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:04:50.644069Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.09573","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fba7488bbcd6707b1bcb6ea4b641f5e053919fdfc1cc5543ee702da8c4ca13cf","sha256:cf84719209b7b73901ca85134abe76337559ee8d52f644026bf5d63f4faba44b"],"state_sha256":"66c167af85f60862dc18a73fbe8ce7f89341f310937eebd54fbfd7ef09fc54ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dPg6njilPqYKBXkxBMi2HU3Z4pyJQVDvpFtBqcmzSIxiwtjDPShSEeiXlctbQgyGaqMVUDm7chfhMID69qWCDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T23:47:21.974245Z","bundle_sha256":"164f0400b609e14584aacd100a675e40c48d391df684050ef762932d4e18b921"}}