{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:XQ5DXDIXYU257S3BFY5P4YUIC4","short_pith_number":"pith:XQ5DXDIX","canonical_record":{"source":{"id":"2207.12536","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2022-07-25T21:17:40Z","cross_cats_sorted":[],"title_canon_sha256":"20e2d56262de2c80057e9008df2ebfe5025ea609d77533eeeae341778cb2b50c","abstract_canon_sha256":"e7519378d2abdab96e9c8e655826f06fd0919848b40f611db88adece9abc4bc2"},"schema_version":"1.0"},"canonical_sha256":"bc3a3b8d17c535dfcb612e3afe62881701ba5ab10cbd4ba0c4f3b6101160007f","source":{"kind":"arxiv","id":"2207.12536","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.12536","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"arxiv_version","alias_value":"2207.12536v2","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.12536","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"pith_short_12","alias_value":"XQ5DXDIXYU25","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"pith_short_16","alias_value":"XQ5DXDIXYU257S3B","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"pith_short_8","alias_value":"XQ5DXDIX","created_at":"2026-07-05T05:40:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:XQ5DXDIXYU257S3BFY5P4YUIC4","target":"record","payload":{"canonical_record":{"source":{"id":"2207.12536","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2022-07-25T21:17:40Z","cross_cats_sorted":[],"title_canon_sha256":"20e2d56262de2c80057e9008df2ebfe5025ea609d77533eeeae341778cb2b50c","abstract_canon_sha256":"e7519378d2abdab96e9c8e655826f06fd0919848b40f611db88adece9abc4bc2"},"schema_version":"1.0"},"canonical_sha256":"bc3a3b8d17c535dfcb612e3afe62881701ba5ab10cbd4ba0c4f3b6101160007f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:40:48.066941Z","signature_b64":"U/+t70Gc7VSOoBbpKJF/N9DHOilCv3HHxfduUgX4LoJCu3QFR8E5OYu9VQrk+yjVkkpD5krw1k7uo/BfQuBuCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc3a3b8d17c535dfcb612e3afe62881701ba5ab10cbd4ba0c4f3b6101160007f","last_reissued_at":"2026-07-05T05:40:48.066177Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:40:48.066177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.12536","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":"2026-07-05T05:40:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p/EIFEg5Sq0kkpQkPwjgmO3Vz8P71SAeAbu9ip5y3hoD5xVAM3KIb2374dTuOETriATIlq3tV7nbbtKtmK1MDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T14:50:58.142454Z"},"content_sha256":"3cedc7bbb3ab9511f6427f663f065835aeef19afe2f4de45deb2dc77348526cc","schema_version":"1.0","event_id":"sha256:3cedc7bbb3ab9511f6427f663f065835aeef19afe2f4de45deb2dc77348526cc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:XQ5DXDIXYU257S3BFY5P4YUIC4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lumen Shape Reconstruction using a Soft Robotic Balloon Catheter and Electrical Impedance Tomography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.RO","authors_text":"Cristina Fiani, Elena Monfort Sanchez, George Mylonas, James Avery, Kirill Aristovich, Mark Runciman, Saina Akhond, Zhuang Liu","submitted_at":"2022-07-25T21:17:40Z","abstract_excerpt":"Incorrectly sized balloon catheters can lead to increased post-surgical complications, yet even with preoperative imaging, correct selection remains a challenge. With limited feedback during surgery, it is difficult to verify correct deployment. We propose the use of integrated impedance measurements and Electrical Impedance Tomography (EIT) imaging to assess the deformation of the balloon and determine the size and shape of the surrounding lumen. Previous work using single impedance measurements, or pressure data and analytical models, whilst demonstrating high sizing accuracy, have assumed a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.12536","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/2207.12536/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":"2026-07-05T05:40:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2R/SiUjvfc41LJCg7bnx0vh4Sn2SJFeSZqSsO2vxH54K8WQYRcEZhxtgx5RTEXMEStJ+80ZBbW7S3zO5SHzSCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T14:50:58.142958Z"},"content_sha256":"4999781a8dc8cc38cf8a11d42e1068efba1cd44036814f5ee96387859b518465","schema_version":"1.0","event_id":"sha256:4999781a8dc8cc38cf8a11d42e1068efba1cd44036814f5ee96387859b518465"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQ5DXDIXYU257S3BFY5P4YUIC4/bundle.json","state_url":"https://pith.science/pith/XQ5DXDIXYU257S3BFY5P4YUIC4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQ5DXDIXYU257S3BFY5P4YUIC4/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":"2026-08-03T14:50:58Z","links":{"resolver":"https://pith.science/pith/XQ5DXDIXYU257S3BFY5P4YUIC4","bundle":"https://pith.science/pith/XQ5DXDIXYU257S3BFY5P4YUIC4/bundle.json","state":"https://pith.science/pith/XQ5DXDIXYU257S3BFY5P4YUIC4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQ5DXDIXYU257S3BFY5P4YUIC4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:XQ5DXDIXYU257S3BFY5P4YUIC4","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":"e7519378d2abdab96e9c8e655826f06fd0919848b40f611db88adece9abc4bc2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2022-07-25T21:17:40Z","title_canon_sha256":"20e2d56262de2c80057e9008df2ebfe5025ea609d77533eeeae341778cb2b50c"},"schema_version":"1.0","source":{"id":"2207.12536","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.12536","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"arxiv_version","alias_value":"2207.12536v2","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.12536","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"pith_short_12","alias_value":"XQ5DXDIXYU25","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"pith_short_16","alias_value":"XQ5DXDIXYU257S3B","created_at":"2026-07-05T05:40:48Z"},{"alias_kind":"pith_short_8","alias_value":"XQ5DXDIX","created_at":"2026-07-05T05:40:48Z"}],"graph_snapshots":[{"event_id":"sha256:4999781a8dc8cc38cf8a11d42e1068efba1cd44036814f5ee96387859b518465","target":"graph","created_at":"2026-07-05T05:40:48Z","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/2207.12536/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Incorrectly sized balloon catheters can lead to increased post-surgical complications, yet even with preoperative imaging, correct selection remains a challenge. With limited feedback during surgery, it is difficult to verify correct deployment. We propose the use of integrated impedance measurements and Electrical Impedance Tomography (EIT) imaging to assess the deformation of the balloon and determine the size and shape of the surrounding lumen. Previous work using single impedance measurements, or pressure data and analytical models, whilst demonstrating high sizing accuracy, have assumed a","authors_text":"Cristina Fiani, Elena Monfort Sanchez, George Mylonas, James Avery, Kirill Aristovich, Mark Runciman, Saina Akhond, Zhuang Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2022-07-25T21:17:40Z","title":"Lumen Shape Reconstruction using a Soft Robotic Balloon Catheter and Electrical Impedance Tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.12536","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":"sha256:3cedc7bbb3ab9511f6427f663f065835aeef19afe2f4de45deb2dc77348526cc","target":"record","created_at":"2026-07-05T05:40:48Z","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":"e7519378d2abdab96e9c8e655826f06fd0919848b40f611db88adece9abc4bc2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2022-07-25T21:17:40Z","title_canon_sha256":"20e2d56262de2c80057e9008df2ebfe5025ea609d77533eeeae341778cb2b50c"},"schema_version":"1.0","source":{"id":"2207.12536","kind":"arxiv","version":2}},"canonical_sha256":"bc3a3b8d17c535dfcb612e3afe62881701ba5ab10cbd4ba0c4f3b6101160007f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc3a3b8d17c535dfcb612e3afe62881701ba5ab10cbd4ba0c4f3b6101160007f","first_computed_at":"2026-07-05T05:40:48.066177Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:40:48.066177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U/+t70Gc7VSOoBbpKJF/N9DHOilCv3HHxfduUgX4LoJCu3QFR8E5OYu9VQrk+yjVkkpD5krw1k7uo/BfQuBuCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:40:48.066941Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.12536","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3cedc7bbb3ab9511f6427f663f065835aeef19afe2f4de45deb2dc77348526cc","sha256:4999781a8dc8cc38cf8a11d42e1068efba1cd44036814f5ee96387859b518465"],"state_sha256":"ebae3b9e4a0cc0add47bf3cf40edd4c58e22dbca09d3128a680d72582256cb22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HdPBK9f7cnfm/W/1GE26gjBTOqJsPZ+Dp59U7YmfO1VD0DVJrg9wtEOEMSJTPrW9wRdD6e5jN6KtL5gp4oWQDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T14:50:58.146537Z","bundle_sha256":"dd42da3dd7d53215c91385e93e6c9818957f9d2d49533af457c76e401d8d3901"}}