{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:IQLIRV7NTN33KDYB7LFPZZSNM4","short_pith_number":"pith:IQLIRV7N","canonical_record":{"source":{"id":"2010.15526","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-29T12:46:05Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"95197a956b82b734239aae50e48d1d16dc0eb019ad008e9dc16ed1e563fc7ec0","abstract_canon_sha256":"f08e4c9634acc5bc8ac8c9de6ea5484affa26c15395a178e415d442d2e1aa346"},"schema_version":"1.0"},"canonical_sha256":"441688d7ed9b77b50f01facafce64d67225a1271546d77f7cb86e9a7203ed741","source":{"kind":"arxiv","id":"2010.15526","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.15526","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"arxiv_version","alias_value":"2010.15526v4","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15526","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_12","alias_value":"IQLIRV7NTN33","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_16","alias_value":"IQLIRV7NTN33KDYB","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_8","alias_value":"IQLIRV7N","created_at":"2026-07-05T02:55:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:IQLIRV7NTN33KDYB7LFPZZSNM4","target":"record","payload":{"canonical_record":{"source":{"id":"2010.15526","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-29T12:46:05Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"95197a956b82b734239aae50e48d1d16dc0eb019ad008e9dc16ed1e563fc7ec0","abstract_canon_sha256":"f08e4c9634acc5bc8ac8c9de6ea5484affa26c15395a178e415d442d2e1aa346"},"schema_version":"1.0"},"canonical_sha256":"441688d7ed9b77b50f01facafce64d67225a1271546d77f7cb86e9a7203ed741","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:55:53.243893Z","signature_b64":"sxd/w6KSag3mQ236QPUrf8kHI5z3IDMKUZF/Yxjbu/J/PALVKM590z41zurI/N40irx4C9ffuW/a+/vMbKFnAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"441688d7ed9b77b50f01facafce64d67225a1271546d77f7cb86e9a7203ed741","last_reissued_at":"2026-07-05T02:55:53.243483Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:55:53.243483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.15526","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":"2026-07-05T02:55:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4gB215O7gKUNBJskrXhQYc53+5ktRe4eIvAiSYd0wf6mvZTIaBBF8XeXTZ2feWmEmvAoG90cxJMiGTfkySaWAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T07:09:11.377038Z"},"content_sha256":"874eac31bb9f59ffb26ff48a63012825fff99927281c4a4621ad5a55acd4ccb7","schema_version":"1.0","event_id":"sha256:874eac31bb9f59ffb26ff48a63012825fff99927281c4a4621ad5a55acd4ccb7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:IQLIRV7NTN33KDYB7LFPZZSNM4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An automatic multi-tissue human fetal brain segmentation benchmark using the Fetal Tissue Annotation Dataset","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Andras Jakab, Asim Iqbal, Bjoern Menze, Giancarlo Natalucci, Hamza Kebiri, Hui Ji, Ivan Ezhov, Johannes C. Paetzold, Kelly Payette, Levente Lanczi, Marianna Nagy, Meritxell Bach Cuadra, Monika Beresova, Patrice Grehten, Priscille de Dumast, Raimund Kottke, Romesa Khan, Suprosanna Shit, Theofanis Karayannis, Thi Dao Nguyen","submitted_at":"2020-10-29T12:46:05Z","abstract_excerpt":"It is critical to quantitatively analyse the developing human fetal brain in order to fully understand neurodevelopment in both normal fetuses and those with congenital disorders. To facilitate this analysis, automatic multi-tissue fetal brain segmentation algorithms are needed, which in turn requires open databases of segmented fetal brains. Here we introduce a publicly available database of 50 manually segmented pathological and non-pathological fetal magnetic resonance brain volume reconstructions across a range of gestational ages (20 to 33 weeks) into 7 different tissue categories (extern"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.15526","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/2010.15526/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":"2026-07-05T02:55:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xW5C+hZtF2f2to7pMXBATYEuIBaSiZkzwd0V9ij2UZRIppzJolW1id6sEpjqkR5mwO0pljNWPg46XTCmQfXHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T07:09:11.377469Z"},"content_sha256":"425d721c6897f0f5d1c1a3ae121b6a435667315595b7aff317872e4b6920ed50","schema_version":"1.0","event_id":"sha256:425d721c6897f0f5d1c1a3ae121b6a435667315595b7aff317872e4b6920ed50"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IQLIRV7NTN33KDYB7LFPZZSNM4/bundle.json","state_url":"https://pith.science/pith/IQLIRV7NTN33KDYB7LFPZZSNM4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IQLIRV7NTN33KDYB7LFPZZSNM4/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":"2026-08-13T07:09:11Z","links":{"resolver":"https://pith.science/pith/IQLIRV7NTN33KDYB7LFPZZSNM4","bundle":"https://pith.science/pith/IQLIRV7NTN33KDYB7LFPZZSNM4/bundle.json","state":"https://pith.science/pith/IQLIRV7NTN33KDYB7LFPZZSNM4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IQLIRV7NTN33KDYB7LFPZZSNM4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:IQLIRV7NTN33KDYB7LFPZZSNM4","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":"f08e4c9634acc5bc8ac8c9de6ea5484affa26c15395a178e415d442d2e1aa346","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-29T12:46:05Z","title_canon_sha256":"95197a956b82b734239aae50e48d1d16dc0eb019ad008e9dc16ed1e563fc7ec0"},"schema_version":"1.0","source":{"id":"2010.15526","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.15526","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"arxiv_version","alias_value":"2010.15526v4","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15526","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_12","alias_value":"IQLIRV7NTN33","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_16","alias_value":"IQLIRV7NTN33KDYB","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_8","alias_value":"IQLIRV7N","created_at":"2026-07-05T02:55:53Z"}],"graph_snapshots":[{"event_id":"sha256:425d721c6897f0f5d1c1a3ae121b6a435667315595b7aff317872e4b6920ed50","target":"graph","created_at":"2026-07-05T02:55:53Z","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/2010.15526/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is critical to quantitatively analyse the developing human fetal brain in order to fully understand neurodevelopment in both normal fetuses and those with congenital disorders. To facilitate this analysis, automatic multi-tissue fetal brain segmentation algorithms are needed, which in turn requires open databases of segmented fetal brains. Here we introduce a publicly available database of 50 manually segmented pathological and non-pathological fetal magnetic resonance brain volume reconstructions across a range of gestational ages (20 to 33 weeks) into 7 different tissue categories (extern","authors_text":"Andras Jakab, Asim Iqbal, Bjoern Menze, Giancarlo Natalucci, Hamza Kebiri, Hui Ji, Ivan Ezhov, Johannes C. Paetzold, Kelly Payette, Levente Lanczi, Marianna Nagy, Meritxell Bach Cuadra, Monika Beresova, Patrice Grehten, Priscille de Dumast, Raimund Kottke, Romesa Khan, Suprosanna Shit, Theofanis Karayannis, Thi Dao Nguyen","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-29T12:46:05Z","title":"An automatic multi-tissue human fetal brain segmentation benchmark using the Fetal Tissue Annotation Dataset"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.15526","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":"sha256:874eac31bb9f59ffb26ff48a63012825fff99927281c4a4621ad5a55acd4ccb7","target":"record","created_at":"2026-07-05T02:55:53Z","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":"f08e4c9634acc5bc8ac8c9de6ea5484affa26c15395a178e415d442d2e1aa346","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2020-10-29T12:46:05Z","title_canon_sha256":"95197a956b82b734239aae50e48d1d16dc0eb019ad008e9dc16ed1e563fc7ec0"},"schema_version":"1.0","source":{"id":"2010.15526","kind":"arxiv","version":4}},"canonical_sha256":"441688d7ed9b77b50f01facafce64d67225a1271546d77f7cb86e9a7203ed741","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"441688d7ed9b77b50f01facafce64d67225a1271546d77f7cb86e9a7203ed741","first_computed_at":"2026-07-05T02:55:53.243483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:55:53.243483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sxd/w6KSag3mQ236QPUrf8kHI5z3IDMKUZF/Yxjbu/J/PALVKM590z41zurI/N40irx4C9ffuW/a+/vMbKFnAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:55:53.243893Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.15526","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:874eac31bb9f59ffb26ff48a63012825fff99927281c4a4621ad5a55acd4ccb7","sha256:425d721c6897f0f5d1c1a3ae121b6a435667315595b7aff317872e4b6920ed50"],"state_sha256":"52063f024e45d0dd157d0af41c6ef38af0fbac77c3508c000adb0f2096158b7c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3nCl3SpzDbGas4BGkzAjFzG3HnFhjb6hgDDezw38sZ8AIdImS7vfH42b2akdo7E201Fkoa1LXd1KM9GanxzWBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T07:09:11.380500Z","bundle_sha256":"72766c9ec42b15b660b70b400f0a70a49a403b440af45227d64d6e9d500f9f95"}}