{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:DBKVGXNT3XDXERUBBIXX2QS67T","short_pith_number":"pith:DBKVGXNT","canonical_record":{"source":{"id":"2009.08218","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-17T11:34:57Z","cross_cats_sorted":[],"title_canon_sha256":"ce5fc26a8cb3d68b6af1059bc142eaff9f00983f4861651078da217e904202ce","abstract_canon_sha256":"a13a9d2205f9fbbc0e2219dda935cd2ea37714e74ed27db22e1bace93895de55"},"schema_version":"1.0"},"canonical_sha256":"1855535db3ddc77246810a2f7d425efcce2e362b017b983c86ff4b562cb3f082","source":{"kind":"arxiv","id":"2009.08218","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.08218","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"arxiv_version","alias_value":"2009.08218v2","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.08218","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"pith_short_12","alias_value":"DBKVGXNT3XDX","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"pith_short_16","alias_value":"DBKVGXNT3XDXERUB","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"pith_short_8","alias_value":"DBKVGXNT","created_at":"2026-07-05T03:00:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:DBKVGXNT3XDXERUBBIXX2QS67T","target":"record","payload":{"canonical_record":{"source":{"id":"2009.08218","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-17T11:34:57Z","cross_cats_sorted":[],"title_canon_sha256":"ce5fc26a8cb3d68b6af1059bc142eaff9f00983f4861651078da217e904202ce","abstract_canon_sha256":"a13a9d2205f9fbbc0e2219dda935cd2ea37714e74ed27db22e1bace93895de55"},"schema_version":"1.0"},"canonical_sha256":"1855535db3ddc77246810a2f7d425efcce2e362b017b983c86ff4b562cb3f082","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:00:28.457775Z","signature_b64":"ZynrE8cI3RGY7Rh/dATs7a+p/GF6t0TL6/huc0cRpUgMEF2MyDrjEZiHKG3Xr+9dWcc/wbUlthWMTGKMu+12Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1855535db3ddc77246810a2f7d425efcce2e362b017b983c86ff4b562cb3f082","last_reissued_at":"2026-07-05T03:00:28.457428Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:00:28.457428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.08218","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:00:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RL0tYRqtMvxX+OEVTgTVQTxClAmAo4vi93+K08otrDa9uweLrMvtQbLkL+a9m7ZC7QPtKdwWduulJxRvFYKBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T03:53:05.393306Z"},"content_sha256":"19fe8c757a12bdfcee4619ff86fa138e8fa1cb461c62a58e2349756024b93c3a","schema_version":"1.0","event_id":"sha256:19fe8c757a12bdfcee4619ff86fa138e8fa1cb461c62a58e2349756024b93c3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:DBKVGXNT3XDXERUBBIXX2QS67T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Motion Compensation Approach for Oral and Maxillofacial Cone-beam Imaging","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Elisabeth Tijskens, Johan Nuyts, Reinhilde Jacobs, Roger Fulton, Ruben Pauwels, Tao Sun","submitted_at":"2020-09-17T11:34:57Z","abstract_excerpt":"Purpose: Patient movement affects image quality in oral and maxillofacial cone-beam CT imaging. While many efforts are made to minimize the possibility of motion during a scan, relatively little attention has been given to motion compensation after the acquisition. Methods: In a previous study, we proposed a retrospective motion compensation approach for helical head CT imaging, which iteratively estimates and compensates for rigid head motion. This study reports on an extension of the previous method to cone-beam CT imaging. To address the issue of the limited field-of-view, improvements were"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.08218","kind":"arxiv","version":2},"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/2009.08218/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":"2026-07-05T03:00:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z/dFY+p6a7VOcOzgDvHSIuf+C6PxDKdfJ/fbBME5U6CrmMxD0kiQYh3VPbSbdX9neroiIYcYC1WhoiX2B3D6BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T03:53:05.393702Z"},"content_sha256":"76b23e5f0274862d96e31aace9d8907802440362b55befba968ef49977b09739","schema_version":"1.0","event_id":"sha256:76b23e5f0274862d96e31aace9d8907802440362b55befba968ef49977b09739"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DBKVGXNT3XDXERUBBIXX2QS67T/bundle.json","state_url":"https://pith.science/pith/DBKVGXNT3XDXERUBBIXX2QS67T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DBKVGXNT3XDXERUBBIXX2QS67T/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":"2026-07-24T03:53:05Z","links":{"resolver":"https://pith.science/pith/DBKVGXNT3XDXERUBBIXX2QS67T","bundle":"https://pith.science/pith/DBKVGXNT3XDXERUBBIXX2QS67T/bundle.json","state":"https://pith.science/pith/DBKVGXNT3XDXERUBBIXX2QS67T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DBKVGXNT3XDXERUBBIXX2QS67T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:DBKVGXNT3XDXERUBBIXX2QS67T","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":"a13a9d2205f9fbbc0e2219dda935cd2ea37714e74ed27db22e1bace93895de55","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-17T11:34:57Z","title_canon_sha256":"ce5fc26a8cb3d68b6af1059bc142eaff9f00983f4861651078da217e904202ce"},"schema_version":"1.0","source":{"id":"2009.08218","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.08218","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"arxiv_version","alias_value":"2009.08218v2","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.08218","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"pith_short_12","alias_value":"DBKVGXNT3XDX","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"pith_short_16","alias_value":"DBKVGXNT3XDXERUB","created_at":"2026-07-05T03:00:28Z"},{"alias_kind":"pith_short_8","alias_value":"DBKVGXNT","created_at":"2026-07-05T03:00:28Z"}],"graph_snapshots":[{"event_id":"sha256:76b23e5f0274862d96e31aace9d8907802440362b55befba968ef49977b09739","target":"graph","created_at":"2026-07-05T03:00:28Z","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/2009.08218/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Purpose: Patient movement affects image quality in oral and maxillofacial cone-beam CT imaging. While many efforts are made to minimize the possibility of motion during a scan, relatively little attention has been given to motion compensation after the acquisition. Methods: In a previous study, we proposed a retrospective motion compensation approach for helical head CT imaging, which iteratively estimates and compensates for rigid head motion. This study reports on an extension of the previous method to cone-beam CT imaging. To address the issue of the limited field-of-view, improvements were","authors_text":"Elisabeth Tijskens, Johan Nuyts, Reinhilde Jacobs, Roger Fulton, Ruben Pauwels, Tao Sun","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-17T11:34:57Z","title":"A Motion Compensation Approach for Oral and Maxillofacial Cone-beam Imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.08218","kind":"arxiv","version":2},"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":"sha256:19fe8c757a12bdfcee4619ff86fa138e8fa1cb461c62a58e2349756024b93c3a","target":"record","created_at":"2026-07-05T03:00:28Z","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":"a13a9d2205f9fbbc0e2219dda935cd2ea37714e74ed27db22e1bace93895de55","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.med-ph","submitted_at":"2020-09-17T11:34:57Z","title_canon_sha256":"ce5fc26a8cb3d68b6af1059bc142eaff9f00983f4861651078da217e904202ce"},"schema_version":"1.0","source":{"id":"2009.08218","kind":"arxiv","version":2}},"canonical_sha256":"1855535db3ddc77246810a2f7d425efcce2e362b017b983c86ff4b562cb3f082","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1855535db3ddc77246810a2f7d425efcce2e362b017b983c86ff4b562cb3f082","first_computed_at":"2026-07-05T03:00:28.457428Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:00:28.457428Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZynrE8cI3RGY7Rh/dATs7a+p/GF6t0TL6/huc0cRpUgMEF2MyDrjEZiHKG3Xr+9dWcc/wbUlthWMTGKMu+12Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T03:00:28.457775Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.08218","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19fe8c757a12bdfcee4619ff86fa138e8fa1cb461c62a58e2349756024b93c3a","sha256:76b23e5f0274862d96e31aace9d8907802440362b55befba968ef49977b09739"],"state_sha256":"311d40a9d30b9ff60971bd69153e33dcfce0399b48bc20390719e6ca5a91a424"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qhkJnc45dYn1/J2hVOxRq0R9dvbab6e/XZ6Sd/Ep1ltTTO7W2j9sCT9Gj57S3WbX3clFRkHr/f9y84nP4Oc1Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-24T03:53:05.396465Z","bundle_sha256":"9301bd486762fa0979b47978ac82e81d2b0ba7b1eba9a69fbca82346e06ec826"}}