{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:WWPZ4URCR7GVJOH5QHVD7D6PSP","short_pith_number":"pith:WWPZ4URC","canonical_record":{"source":{"id":"1807.10757","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-27T06:13:04Z","cross_cats_sorted":["math.NA"],"title_canon_sha256":"f9c74b419626b8cef508aeef612048daf4609f810aa1c00f01b2c91fb4c47ed6","abstract_canon_sha256":"0f141b5460c978ca2ee89d457a3b8910bff41ebe7d5bd476eb4ba2c05285aa02"},"schema_version":"1.0"},"canonical_sha256":"b59f9e52228fcd54b8fd81ea3f8fcf93fd3d99c119104de54f0fd8982546749e","source":{"kind":"arxiv","id":"1807.10757","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10757","created_at":"2026-05-18T00:09:37Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10757v1","created_at":"2026-05-18T00:09:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10757","created_at":"2026-05-18T00:09:37Z"},{"alias_kind":"pith_short_12","alias_value":"WWPZ4URCR7GV","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WWPZ4URCR7GVJOH5","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WWPZ4URC","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:WWPZ4URCR7GVJOH5QHVD7D6PSP","target":"record","payload":{"canonical_record":{"source":{"id":"1807.10757","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-27T06:13:04Z","cross_cats_sorted":["math.NA"],"title_canon_sha256":"f9c74b419626b8cef508aeef612048daf4609f810aa1c00f01b2c91fb4c47ed6","abstract_canon_sha256":"0f141b5460c978ca2ee89d457a3b8910bff41ebe7d5bd476eb4ba2c05285aa02"},"schema_version":"1.0"},"canonical_sha256":"b59f9e52228fcd54b8fd81ea3f8fcf93fd3d99c119104de54f0fd8982546749e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:37.436889Z","signature_b64":"28yLBekdXUnv/n6B1VVcNgESJStfYiYkPRyHYmU67SvDU4sYYolljnXK7AL214PRkOHwlkmCecR7VG8SDyC+Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b59f9e52228fcd54b8fd81ea3f8fcf93fd3d99c119104de54f0fd8982546749e","last_reissued_at":"2026-05-18T00:09:37.436369Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:37.436369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.10757","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":"2026-05-18T00:09:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZbKa6F1Z008cqA+ES2BKZahCXTc/OtitD9Bz2KXWozILcKEQud/34p+hexZ+uNORPqKUsBaom3mjiWTn+97DCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T16:05:17.675368Z"},"content_sha256":"b65bc9e6ab07dde786c972ec37078ac3771a170b32194c0d4347243e59d2773f","schema_version":"1.0","event_id":"sha256:b65bc9e6ab07dde786c972ec37078ac3771a170b32194c0d4347243e59d2773f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:WWPZ4URCR7GVJOH5QHVD7D6PSP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A multi-contrast MRI approach to thalamus segmentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.NA"],"primary_cat":"cs.CV","authors_text":"Carola-Bibiane Schoenlieb, Jan Lellmann, Julio Acosta-Cabronero, Peter Nestor, Veronica Corona","submitted_at":"2018-07-27T06:13:04Z","abstract_excerpt":"Thalamic alterations are relevant to many neurological disorders including Alzheimer's disease, Parkinson's disease and multiple sclerosis. Routine interventions to improve symptom severity in movement disorders, for example, often consist of surgery or deep brain stimulation to diencephalic nuclei. Therefore, accurate delineation of grey matter thalamic subregions is of the upmost clinical importance. MRI is highly appropriate for structural segmentation as it provides different views of the anatomy from a single scanning session. Though with several contrasts potentially available, it is als"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10757","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":"2026-05-18T00:09:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BhoVy0OiONUZg1BQpKN1MMKxyCM+8nRJanHwhhgymBRLeH2r0D4ZRcwsun6F0Yp4m2YkurAyJwSPhjSXtwGTCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T16:05:17.675721Z"},"content_sha256":"8cae22f870214244fffe994b4ab5bf9bfa5338e24c0c3cc86869f75d1bd36d8f","schema_version":"1.0","event_id":"sha256:8cae22f870214244fffe994b4ab5bf9bfa5338e24c0c3cc86869f75d1bd36d8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP/bundle.json","state_url":"https://pith.science/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP/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":"2026-06-26T16:05:17Z","links":{"resolver":"https://pith.science/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP","bundle":"https://pith.science/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP/bundle.json","state":"https://pith.science/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WWPZ4URCR7GVJOH5QHVD7D6PSP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WWPZ4URCR7GVJOH5QHVD7D6PSP","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":"0f141b5460c978ca2ee89d457a3b8910bff41ebe7d5bd476eb4ba2c05285aa02","cross_cats_sorted":["math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-27T06:13:04Z","title_canon_sha256":"f9c74b419626b8cef508aeef612048daf4609f810aa1c00f01b2c91fb4c47ed6"},"schema_version":"1.0","source":{"id":"1807.10757","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10757","created_at":"2026-05-18T00:09:37Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10757v1","created_at":"2026-05-18T00:09:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10757","created_at":"2026-05-18T00:09:37Z"},{"alias_kind":"pith_short_12","alias_value":"WWPZ4URCR7GV","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WWPZ4URCR7GVJOH5","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WWPZ4URC","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:8cae22f870214244fffe994b4ab5bf9bfa5338e24c0c3cc86869f75d1bd36d8f","target":"graph","created_at":"2026-05-18T00:09:37Z","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":"Thalamic alterations are relevant to many neurological disorders including Alzheimer's disease, Parkinson's disease and multiple sclerosis. Routine interventions to improve symptom severity in movement disorders, for example, often consist of surgery or deep brain stimulation to diencephalic nuclei. Therefore, accurate delineation of grey matter thalamic subregions is of the upmost clinical importance. MRI is highly appropriate for structural segmentation as it provides different views of the anatomy from a single scanning session. Though with several contrasts potentially available, it is als","authors_text":"Carola-Bibiane Schoenlieb, Jan Lellmann, Julio Acosta-Cabronero, Peter Nestor, Veronica Corona","cross_cats":["math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-27T06:13:04Z","title":"A multi-contrast MRI approach to thalamus segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10757","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:b65bc9e6ab07dde786c972ec37078ac3771a170b32194c0d4347243e59d2773f","target":"record","created_at":"2026-05-18T00:09:37Z","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":"0f141b5460c978ca2ee89d457a3b8910bff41ebe7d5bd476eb4ba2c05285aa02","cross_cats_sorted":["math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-07-27T06:13:04Z","title_canon_sha256":"f9c74b419626b8cef508aeef612048daf4609f810aa1c00f01b2c91fb4c47ed6"},"schema_version":"1.0","source":{"id":"1807.10757","kind":"arxiv","version":1}},"canonical_sha256":"b59f9e52228fcd54b8fd81ea3f8fcf93fd3d99c119104de54f0fd8982546749e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b59f9e52228fcd54b8fd81ea3f8fcf93fd3d99c119104de54f0fd8982546749e","first_computed_at":"2026-05-18T00:09:37.436369Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:37.436369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"28yLBekdXUnv/n6B1VVcNgESJStfYiYkPRyHYmU67SvDU4sYYolljnXK7AL214PRkOHwlkmCecR7VG8SDyC+Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:37.436889Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.10757","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b65bc9e6ab07dde786c972ec37078ac3771a170b32194c0d4347243e59d2773f","sha256:8cae22f870214244fffe994b4ab5bf9bfa5338e24c0c3cc86869f75d1bd36d8f"],"state_sha256":"9466a079d26e3215e5f97b8f3d2eb6d6b513c6bb61ec75d3bfdc4a8ced753ccb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u4zIgRAvvsZMzTuzDLwC6de0fgwN8ENWQem9RAaCm+B0Yv0qhKkySrvda1z1IsRUBxg1szyrdtfB+zoN3RcXCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T16:05:17.677688Z","bundle_sha256":"24b1439b9fba5cd370d71f5432824b2c625e476898b3da4e7133539db19ef71d"}}