{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:BZYE63PGCCLJB7INASSHIT27CD","short_pith_number":"pith:BZYE63PG","canonical_record":{"source":{"id":"1905.11738","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-05-28T11:05:15Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"d8bdc57c1cf3fa0b481efa48054b05916bac565d0e006c00b8afa44b6ecd3ace","abstract_canon_sha256":"9184886a5545179b385090cf46202ec6759e602f00140a5615d98e181c0ac7f2"},"schema_version":"1.0"},"canonical_sha256":"0e704f6de6109690fd0d04a4744f5f10c67715dfcf72c8cd20e3071808d1adc4","source":{"kind":"arxiv","id":"1905.11738","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.11738","created_at":"2026-05-17T23:44:52Z"},{"alias_kind":"arxiv_version","alias_value":"1905.11738v1","created_at":"2026-05-17T23:44:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.11738","created_at":"2026-05-17T23:44:52Z"},{"alias_kind":"pith_short_12","alias_value":"BZYE63PGCCLJ","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BZYE63PGCCLJB7IN","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BZYE63PG","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:BZYE63PGCCLJB7INASSHIT27CD","target":"record","payload":{"canonical_record":{"source":{"id":"1905.11738","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-05-28T11:05:15Z","cross_cats_sorted":["physics.data-an"],"title_canon_sha256":"d8bdc57c1cf3fa0b481efa48054b05916bac565d0e006c00b8afa44b6ecd3ace","abstract_canon_sha256":"9184886a5545179b385090cf46202ec6759e602f00140a5615d98e181c0ac7f2"},"schema_version":"1.0"},"canonical_sha256":"0e704f6de6109690fd0d04a4744f5f10c67715dfcf72c8cd20e3071808d1adc4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:52.456291Z","signature_b64":"dHbdWzB/mhNkZZLydVLORHQguCRARDWAdRY8Od8WymBCXWNN84Crj/GFWmWnW6O/cUv/3/3FvC0kiLx0OwAfDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e704f6de6109690fd0d04a4744f5f10c67715dfcf72c8cd20e3071808d1adc4","last_reissued_at":"2026-05-17T23:44:52.455688Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:52.455688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.11738","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":"2026-05-17T23:44:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JVe+k8txHJuaHj+TC6eoTyS0p2GYOmhvGmm6WKk2kuD/MS5CVV/4jIzib4XjNPIi+K/PNy1lw7w1ESZVcgOHBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:19:56.546891Z"},"content_sha256":"2e72a8abfd6b30f6576bb3bfca5d5fbeec3d1dff411b2fe92306ff1806896261","schema_version":"1.0","event_id":"sha256:2e72a8abfd6b30f6576bb3bfca5d5fbeec3d1dff411b2fe92306ff1806896261"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:BZYE63PGCCLJB7INASSHIT27CD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In utero diffusion MRI: challenges, advances, and applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.data-an"],"primary_cat":"physics.med-ph","authors_text":"Anthony N. Price, Daan Christiaens, Daniel C. Alexander, Jana Hutter, Joseph V. Hajnal, Lucilio Cordero-Grande, Maria Deprez, Mary Rutherford, Paddy J. Slator","submitted_at":"2019-05-28T11:05:15Z","abstract_excerpt":"In utero diffusion MRI provides unique opportunities to non-invasively study the microstructure of tissue during fetal development. A wide range of developmental processes, such as the growth of white matter tracts in the brain, the maturation of placental villous trees, or the fibres in the fetal heart remain to be studied and understood in detail. Advances in fetal interventions and surgery furthermore increase the need for ever more precise antenatal diagnosis from fetal MRI. However, the specific properties of the in utero environment, such as fetal and maternal motion, increased field-of-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.11738","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":"2026-05-17T23:44:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hIYjsRbO4DoYlExM//DgsdEvTXo2+tEcwluHJiLvrVzQY+Jox/wcyDQFRmf3pd8OHX+8EXlUcQDTW6UNSYa8CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:19:56.547575Z"},"content_sha256":"66f0e3871ab46f42f1cd3ebe1284fa8e93b41470c771b4fe24d1aceb8c3d648c","schema_version":"1.0","event_id":"sha256:66f0e3871ab46f42f1cd3ebe1284fa8e93b41470c771b4fe24d1aceb8c3d648c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BZYE63PGCCLJB7INASSHIT27CD/bundle.json","state_url":"https://pith.science/pith/BZYE63PGCCLJB7INASSHIT27CD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BZYE63PGCCLJB7INASSHIT27CD/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":"2026-05-20T17:19:56Z","links":{"resolver":"https://pith.science/pith/BZYE63PGCCLJB7INASSHIT27CD","bundle":"https://pith.science/pith/BZYE63PGCCLJB7INASSHIT27CD/bundle.json","state":"https://pith.science/pith/BZYE63PGCCLJB7INASSHIT27CD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BZYE63PGCCLJB7INASSHIT27CD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:BZYE63PGCCLJB7INASSHIT27CD","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":"9184886a5545179b385090cf46202ec6759e602f00140a5615d98e181c0ac7f2","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-05-28T11:05:15Z","title_canon_sha256":"d8bdc57c1cf3fa0b481efa48054b05916bac565d0e006c00b8afa44b6ecd3ace"},"schema_version":"1.0","source":{"id":"1905.11738","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.11738","created_at":"2026-05-17T23:44:52Z"},{"alias_kind":"arxiv_version","alias_value":"1905.11738v1","created_at":"2026-05-17T23:44:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.11738","created_at":"2026-05-17T23:44:52Z"},{"alias_kind":"pith_short_12","alias_value":"BZYE63PGCCLJ","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BZYE63PGCCLJB7IN","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BZYE63PG","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:66f0e3871ab46f42f1cd3ebe1284fa8e93b41470c771b4fe24d1aceb8c3d648c","target":"graph","created_at":"2026-05-17T23:44:52Z","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":"In utero diffusion MRI provides unique opportunities to non-invasively study the microstructure of tissue during fetal development. A wide range of developmental processes, such as the growth of white matter tracts in the brain, the maturation of placental villous trees, or the fibres in the fetal heart remain to be studied and understood in detail. Advances in fetal interventions and surgery furthermore increase the need for ever more precise antenatal diagnosis from fetal MRI. However, the specific properties of the in utero environment, such as fetal and maternal motion, increased field-of-","authors_text":"Anthony N. Price, Daan Christiaens, Daniel C. Alexander, Jana Hutter, Joseph V. Hajnal, Lucilio Cordero-Grande, Maria Deprez, Mary Rutherford, Paddy J. Slator","cross_cats":["physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-05-28T11:05:15Z","title":"In utero diffusion MRI: challenges, advances, and applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.11738","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":"sha256:2e72a8abfd6b30f6576bb3bfca5d5fbeec3d1dff411b2fe92306ff1806896261","target":"record","created_at":"2026-05-17T23:44:52Z","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":"9184886a5545179b385090cf46202ec6759e602f00140a5615d98e181c0ac7f2","cross_cats_sorted":["physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2019-05-28T11:05:15Z","title_canon_sha256":"d8bdc57c1cf3fa0b481efa48054b05916bac565d0e006c00b8afa44b6ecd3ace"},"schema_version":"1.0","source":{"id":"1905.11738","kind":"arxiv","version":1}},"canonical_sha256":"0e704f6de6109690fd0d04a4744f5f10c67715dfcf72c8cd20e3071808d1adc4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e704f6de6109690fd0d04a4744f5f10c67715dfcf72c8cd20e3071808d1adc4","first_computed_at":"2026-05-17T23:44:52.455688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:52.455688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dHbdWzB/mhNkZZLydVLORHQguCRARDWAdRY8Od8WymBCXWNN84Crj/GFWmWnW6O/cUv/3/3FvC0kiLx0OwAfDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:52.456291Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.11738","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e72a8abfd6b30f6576bb3bfca5d5fbeec3d1dff411b2fe92306ff1806896261","sha256:66f0e3871ab46f42f1cd3ebe1284fa8e93b41470c771b4fe24d1aceb8c3d648c"],"state_sha256":"097746ba0caf6881db98cce47c383c28bac5e64a5f8691d436ad2d68e138ee20"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sSITwcMyHN4yifEslk49O08CBY7Ua+I2h4SuPoBBD2pQbfU97J4ALGiudMt1V693PRJbBQ2dfqtCOOWH61XUBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T17:19:56.551168Z","bundle_sha256":"50e7b0b7b0c4e507cf4936d7e61d2febec0a4e3916cc013ba435a407fe57039d"}}