{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:ROB6JVPDHYUB6B4TA44BHDNE6V","short_pith_number":"pith:ROB6JVPD","canonical_record":{"source":{"id":"2202.00650","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.med-ph","submitted_at":"2022-01-31T14:55:20Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"f92f2048d496ef4f9711634004097f20d7b8c9a7125f63577a7c51b741ef0168","abstract_canon_sha256":"a98dc85aa38d12c148699d94a08d8f2617701fcdf6ed6720217f39d2d34a61fb"},"schema_version":"1.0"},"canonical_sha256":"8b83e4d5e33e281f07930738138da4f559ed0e28a38127dc5db01aebbd2cc1b7","source":{"kind":"arxiv","id":"2202.00650","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.00650","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"arxiv_version","alias_value":"2202.00650v1","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.00650","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"pith_short_12","alias_value":"ROB6JVPDHYUB","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"pith_short_16","alias_value":"ROB6JVPDHYUB6B4T","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"pith_short_8","alias_value":"ROB6JVPD","created_at":"2026-07-05T03:53:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:ROB6JVPDHYUB6B4TA44BHDNE6V","target":"record","payload":{"canonical_record":{"source":{"id":"2202.00650","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.med-ph","submitted_at":"2022-01-31T14:55:20Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"f92f2048d496ef4f9711634004097f20d7b8c9a7125f63577a7c51b741ef0168","abstract_canon_sha256":"a98dc85aa38d12c148699d94a08d8f2617701fcdf6ed6720217f39d2d34a61fb"},"schema_version":"1.0"},"canonical_sha256":"8b83e4d5e33e281f07930738138da4f559ed0e28a38127dc5db01aebbd2cc1b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:53:23.968959Z","signature_b64":"E08ZlnXOG0aJ01Ic5bZNsi8GBp4hTcDTCCIcsrcxbG5D7ZhBAt3/4eFXkcVQDkAiicVeSLgkmj2qeDv0WV0wCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b83e4d5e33e281f07930738138da4f559ed0e28a38127dc5db01aebbd2cc1b7","last_reissued_at":"2026-07-05T03:53:23.968573Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:53:23.968573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.00650","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":"2026-07-05T03:53:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qvkw3sVWzSBAPFrl9SlzTgS57IxQT97KS7S7U0t30U1pZ6jRAvv9SjDA6YViBOEjfP64ReeKiWWr6bEJ+Yo0AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:36:09.992738Z"},"content_sha256":"15f0a189d97b06dc944e04bcc8e1ed5d0a9ca0496f00aa61954eea8796fbe7d1","schema_version":"1.0","event_id":"sha256:15f0a189d97b06dc944e04bcc8e1ed5d0a9ca0496f00aa61954eea8796fbe7d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:ROB6JVPDHYUB6B4TA44BHDNE6V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AI-based Medical e-Diagnosis for Fast and Automatic Ventricular Volume Measurement in the Patients with Normal Pressure Hydrocephalus","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"physics.med-ph","authors_text":"Guang Yang, Haiqin Ma, Javier Del Ser, Jiakuan Chen, Jun Xia, Qinghao Ye, Xiaolin Yang, Xi Zhou","submitted_at":"2022-01-31T14:55:20Z","abstract_excerpt":"Based on CT and MRI images acquired from normal pressure hydrocephalus (NPH) patients, using machine learning methods, we aim to establish a multi-modal and high-performance automatic ventricle segmentation method to achieve efficient and accurate automatic measurement of the ventricular volume. First, we extract the brain CT and MRI images of 143 definite NPH patients. Second, we manually label the ventricular volume (VV) and intracranial volume (ICV). Then, we use machine learning method to extract features and establish automatic ventricle segmentation model. Finally, we verify the reliabil"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.00650","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/2202.00650/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":"2026-07-05T03:53:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ymarf9gUGItA1zv37HBhU1HuZz2KlhyfQrJlggX7KHXTuTfTVfPCFAZ0XBWKmHLDIwqnukIQjh1pELdy0MeBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:36:09.993264Z"},"content_sha256":"d33f02411e04fa0d386e6daf59f993ff49b7ce18a351f19ddec371feda4f8b24","schema_version":"1.0","event_id":"sha256:d33f02411e04fa0d386e6daf59f993ff49b7ce18a351f19ddec371feda4f8b24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ROB6JVPDHYUB6B4TA44BHDNE6V/bundle.json","state_url":"https://pith.science/pith/ROB6JVPDHYUB6B4TA44BHDNE6V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ROB6JVPDHYUB6B4TA44BHDNE6V/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":"2026-08-05T09:36:09Z","links":{"resolver":"https://pith.science/pith/ROB6JVPDHYUB6B4TA44BHDNE6V","bundle":"https://pith.science/pith/ROB6JVPDHYUB6B4TA44BHDNE6V/bundle.json","state":"https://pith.science/pith/ROB6JVPDHYUB6B4TA44BHDNE6V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ROB6JVPDHYUB6B4TA44BHDNE6V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ROB6JVPDHYUB6B4TA44BHDNE6V","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":"a98dc85aa38d12c148699d94a08d8f2617701fcdf6ed6720217f39d2d34a61fb","cross_cats_sorted":["cs.CV"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.med-ph","submitted_at":"2022-01-31T14:55:20Z","title_canon_sha256":"f92f2048d496ef4f9711634004097f20d7b8c9a7125f63577a7c51b741ef0168"},"schema_version":"1.0","source":{"id":"2202.00650","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.00650","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"arxiv_version","alias_value":"2202.00650v1","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.00650","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"pith_short_12","alias_value":"ROB6JVPDHYUB","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"pith_short_16","alias_value":"ROB6JVPDHYUB6B4T","created_at":"2026-07-05T03:53:23Z"},{"alias_kind":"pith_short_8","alias_value":"ROB6JVPD","created_at":"2026-07-05T03:53:23Z"}],"graph_snapshots":[{"event_id":"sha256:d33f02411e04fa0d386e6daf59f993ff49b7ce18a351f19ddec371feda4f8b24","target":"graph","created_at":"2026-07-05T03:53:23Z","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/2202.00650/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Based on CT and MRI images acquired from normal pressure hydrocephalus (NPH) patients, using machine learning methods, we aim to establish a multi-modal and high-performance automatic ventricle segmentation method to achieve efficient and accurate automatic measurement of the ventricular volume. First, we extract the brain CT and MRI images of 143 definite NPH patients. Second, we manually label the ventricular volume (VV) and intracranial volume (ICV). Then, we use machine learning method to extract features and establish automatic ventricle segmentation model. Finally, we verify the reliabil","authors_text":"Guang Yang, Haiqin Ma, Javier Del Ser, Jiakuan Chen, Jun Xia, Qinghao Ye, Xiaolin Yang, Xi Zhou","cross_cats":["cs.CV"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.med-ph","submitted_at":"2022-01-31T14:55:20Z","title":"AI-based Medical e-Diagnosis for Fast and Automatic Ventricular Volume Measurement in the Patients with Normal Pressure Hydrocephalus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.00650","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":"sha256:15f0a189d97b06dc944e04bcc8e1ed5d0a9ca0496f00aa61954eea8796fbe7d1","target":"record","created_at":"2026-07-05T03:53:23Z","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":"a98dc85aa38d12c148699d94a08d8f2617701fcdf6ed6720217f39d2d34a61fb","cross_cats_sorted":["cs.CV"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.med-ph","submitted_at":"2022-01-31T14:55:20Z","title_canon_sha256":"f92f2048d496ef4f9711634004097f20d7b8c9a7125f63577a7c51b741ef0168"},"schema_version":"1.0","source":{"id":"2202.00650","kind":"arxiv","version":1}},"canonical_sha256":"8b83e4d5e33e281f07930738138da4f559ed0e28a38127dc5db01aebbd2cc1b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b83e4d5e33e281f07930738138da4f559ed0e28a38127dc5db01aebbd2cc1b7","first_computed_at":"2026-07-05T03:53:23.968573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:53:23.968573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E08ZlnXOG0aJ01Ic5bZNsi8GBp4hTcDTCCIcsrcxbG5D7ZhBAt3/4eFXkcVQDkAiicVeSLgkmj2qeDv0WV0wCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:53:23.968959Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.00650","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15f0a189d97b06dc944e04bcc8e1ed5d0a9ca0496f00aa61954eea8796fbe7d1","sha256:d33f02411e04fa0d386e6daf59f993ff49b7ce18a351f19ddec371feda4f8b24"],"state_sha256":"75624699473166295c795a875e314f5be6a3f11da3c221e9d5362eb77d5051d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Aw748434HlmZ2Eyj2thJ8O9ifYu5GT7myYVGS/f5uRdirNRA0Z1Kz9cHDncUcoeO5a2YpSAxF4+BMqZAV9WnDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T09:36:09.997640Z","bundle_sha256":"c439f066ba19bc38bdbc9cbb6b4ec49d25fc5e7f2471029b6e02d79de658ca6a"}}