{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:7MBDYCY3RCOWQLEW5PB2AKIZGS","short_pith_number":"pith:7MBDYCY3","canonical_record":{"source":{"id":"1401.2337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2014-01-08T10:04:32Z","cross_cats_sorted":[],"title_canon_sha256":"c171dccfbf6c529d89c5b5c1d21e24c6c44d1d6031cdc3413a6dac4d3aa0efc6","abstract_canon_sha256":"18bba3298eb18ea08e26f7797794a947cdd857574a7099fb775425246af613a6"},"schema_version":"1.0"},"canonical_sha256":"fb023c0b1b889d682c96ebc3a02919349e8129a1a3a9804ee4393b47d36b9f44","source":{"kind":"arxiv","id":"1401.2337","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2337","created_at":"2026-05-18T03:02:45Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2337v1","created_at":"2026-05-18T03:02:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2337","created_at":"2026-05-18T03:02:45Z"},{"alias_kind":"pith_short_12","alias_value":"7MBDYCY3RCOW","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7MBDYCY3RCOWQLEW","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7MBDYCY3","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:7MBDYCY3RCOWQLEW5PB2AKIZGS","target":"record","payload":{"canonical_record":{"source":{"id":"1401.2337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2014-01-08T10:04:32Z","cross_cats_sorted":[],"title_canon_sha256":"c171dccfbf6c529d89c5b5c1d21e24c6c44d1d6031cdc3413a6dac4d3aa0efc6","abstract_canon_sha256":"18bba3298eb18ea08e26f7797794a947cdd857574a7099fb775425246af613a6"},"schema_version":"1.0"},"canonical_sha256":"fb023c0b1b889d682c96ebc3a02919349e8129a1a3a9804ee4393b47d36b9f44","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:02:45.554924Z","signature_b64":"S6igrk7COunT4nctCktlKYSMn9s8IDJQWXLrFTO9NjxFYuC8sZMxziGMgUxcfxdKWQRol503v4m8dbDSUw69Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb023c0b1b889d682c96ebc3a02919349e8129a1a3a9804ee4393b47d36b9f44","last_reissued_at":"2026-05-18T03:02:45.554283Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:02:45.554283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.2337","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":"2026-05-18T03:02:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"koNyrfLCwue3Xo1rniJwbv1MZK23IBgrzPxQm46anA0Wr5IdBAOYaUAdZiNHImU6rOvRTQfjP58U+TpGDzDiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T09:21:24.207956Z"},"content_sha256":"b3a1d26aba9744a16151e4e4c1504013e9f9f5ac3161c2b46ad1e43cf14bbf6c","schema_version":"1.0","event_id":"sha256:b3a1d26aba9744a16151e4e4c1504013e9f9f5ac3161c2b46ad1e43cf14bbf6c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:7MBDYCY3RCOWQLEW5PB2AKIZGS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A mathematical and numerical framework for ultrasonically-induced Lorentz force electrical impedance tomography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AP","authors_text":"Habib Ammari, Jin-Keun Seo, Laurent Seppecher, Pierre Millien, Pol Grasland-Mongrain","submitted_at":"2014-01-08T10:04:32Z","abstract_excerpt":"We provide a mathematical analysis and a numerical framework for Lorentz force electrical conductivity imaging. Ultrasonic vibration of a tissue in the presence of a static magnetic field induces an electrical current by the Lorentz force. This current can be detected by electrodes placed around the tissue; it is proportional to the velocity of the ultrasonic pulse, but depends nonlinearly on the conductivity distribution. The imaging problem is to reconstruct the conductivity distribution from measurements of the induced current. To solve this nonlinear inverse problem, we first make use of a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2337","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":"2026-05-18T03:02:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gkD0sQxsZtzAJSOxpfuUHWWJBrkfAPxyd6hAks9GoiQDZWTNfdBZpNsrl8zIvOynz5Q/RtnA0R60ALo824lBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T09:21:24.208620Z"},"content_sha256":"9366cb7a7fa3fa4e5274a6b6149b45deeb5e67d15c78dc0c492af627d6a23a1f","schema_version":"1.0","event_id":"sha256:9366cb7a7fa3fa4e5274a6b6149b45deeb5e67d15c78dc0c492af627d6a23a1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS/bundle.json","state_url":"https://pith.science/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS/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":"2026-05-27T09:21:24Z","links":{"resolver":"https://pith.science/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS","bundle":"https://pith.science/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS/bundle.json","state":"https://pith.science/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7MBDYCY3RCOWQLEW5PB2AKIZGS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7MBDYCY3RCOWQLEW5PB2AKIZGS","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":"18bba3298eb18ea08e26f7797794a947cdd857574a7099fb775425246af613a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2014-01-08T10:04:32Z","title_canon_sha256":"c171dccfbf6c529d89c5b5c1d21e24c6c44d1d6031cdc3413a6dac4d3aa0efc6"},"schema_version":"1.0","source":{"id":"1401.2337","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2337","created_at":"2026-05-18T03:02:45Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2337v1","created_at":"2026-05-18T03:02:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2337","created_at":"2026-05-18T03:02:45Z"},{"alias_kind":"pith_short_12","alias_value":"7MBDYCY3RCOW","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7MBDYCY3RCOWQLEW","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7MBDYCY3","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:9366cb7a7fa3fa4e5274a6b6149b45deeb5e67d15c78dc0c492af627d6a23a1f","target":"graph","created_at":"2026-05-18T03:02:45Z","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":"We provide a mathematical analysis and a numerical framework for Lorentz force electrical conductivity imaging. Ultrasonic vibration of a tissue in the presence of a static magnetic field induces an electrical current by the Lorentz force. This current can be detected by electrodes placed around the tissue; it is proportional to the velocity of the ultrasonic pulse, but depends nonlinearly on the conductivity distribution. The imaging problem is to reconstruct the conductivity distribution from measurements of the induced current. To solve this nonlinear inverse problem, we first make use of a","authors_text":"Habib Ammari, Jin-Keun Seo, Laurent Seppecher, Pierre Millien, Pol Grasland-Mongrain","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2014-01-08T10:04:32Z","title":"A mathematical and numerical framework for ultrasonically-induced Lorentz force electrical impedance tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2337","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:b3a1d26aba9744a16151e4e4c1504013e9f9f5ac3161c2b46ad1e43cf14bbf6c","target":"record","created_at":"2026-05-18T03:02:45Z","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":"18bba3298eb18ea08e26f7797794a947cdd857574a7099fb775425246af613a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2014-01-08T10:04:32Z","title_canon_sha256":"c171dccfbf6c529d89c5b5c1d21e24c6c44d1d6031cdc3413a6dac4d3aa0efc6"},"schema_version":"1.0","source":{"id":"1401.2337","kind":"arxiv","version":1}},"canonical_sha256":"fb023c0b1b889d682c96ebc3a02919349e8129a1a3a9804ee4393b47d36b9f44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb023c0b1b889d682c96ebc3a02919349e8129a1a3a9804ee4393b47d36b9f44","first_computed_at":"2026-05-18T03:02:45.554283Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:02:45.554283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S6igrk7COunT4nctCktlKYSMn9s8IDJQWXLrFTO9NjxFYuC8sZMxziGMgUxcfxdKWQRol503v4m8dbDSUw69Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T03:02:45.554924Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.2337","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b3a1d26aba9744a16151e4e4c1504013e9f9f5ac3161c2b46ad1e43cf14bbf6c","sha256:9366cb7a7fa3fa4e5274a6b6149b45deeb5e67d15c78dc0c492af627d6a23a1f"],"state_sha256":"4cd712a50b9b56fc08598f844835616aa86fe8be9bb2d4fcbf03b333d3b3aa0d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hamcz+qN7FiAsgdPJ4AlThJJIXGmAVnFSRpO/w4jcKXGirhjhApcLecDkEWtXDkGaN8ANfoMTwkKvQ7kRuNpCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T09:21:24.212044Z","bundle_sha256":"37d5658d4bab6bbd375a351a466c93670038c8b3a917958907bd920388dafb93"}}