{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:WYY7R5XVUTHDATKVVPEM6OO2JI","short_pith_number":"pith:WYY7R5XV","canonical_record":{"source":{"id":"1011.3059","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2010-11-12T21:57:54Z","cross_cats_sorted":[],"title_canon_sha256":"16c3e2a3243f81a7e31794803b69ca1e0ce035a3da327df3e43fb1dd59b3d4f0","abstract_canon_sha256":"95dbe00bb674ec5f05215c7141e1ad1cd3836e47bf6b1ed4131af6ffe93fa1bb"},"schema_version":"1.0"},"canonical_sha256":"b631f8f6f5a4ce304d55abc8cf39da4a1bc8cb23953430892170403489efa68a","source":{"kind":"arxiv","id":"1011.3059","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.3059","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1011.3059v3","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.3059","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"WYY7R5XVUTHD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"WYY7R5XVUTHDATKV","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"WYY7R5XV","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:WYY7R5XVUTHDATKVVPEM6OO2JI","target":"record","payload":{"canonical_record":{"source":{"id":"1011.3059","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2010-11-12T21:57:54Z","cross_cats_sorted":[],"title_canon_sha256":"16c3e2a3243f81a7e31794803b69ca1e0ce035a3da327df3e43fb1dd59b3d4f0","abstract_canon_sha256":"95dbe00bb674ec5f05215c7141e1ad1cd3836e47bf6b1ed4131af6ffe93fa1bb"},"schema_version":"1.0"},"canonical_sha256":"b631f8f6f5a4ce304d55abc8cf39da4a1bc8cb23953430892170403489efa68a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:48.080239Z","signature_b64":"YY148e+YSMdvUeyuc7hrwmw2VHHcJFbn2axRtleL2Ae7lRE9h4bt6dA1UjZKOuxc1kJkt5q/cAKjEmOLz4SRBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b631f8f6f5a4ce304d55abc8cf39da4a1bc8cb23953430892170403489efa68a","last_reissued_at":"2026-05-18T02:04:48.079630Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:48.079630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.3059","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LGqQ9RGNdZwwR1m80eYYE8s+lOpOBmesznPp3ohWJE0NZZ4oI3Icvh0zVIwhSgJ1qkIJ/I0oLtVVc7/Lfki2Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:27:50.080285Z"},"content_sha256":"6e63c6cb92f00ff8b6419a3c7c8c34108a5400c216ffe034db33cadcff90f645","schema_version":"1.0","event_id":"sha256:6e63c6cb92f00ff8b6419a3c7c8c34108a5400c216ffe034db33cadcff90f645"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:WYY7R5XVUTHDATKVVPEM6OO2JI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"2D and 3D reconstructions in acousto-electric tomography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AP","authors_text":"Leonid Kunyansky, Peter Kuchment","submitted_at":"2010-11-12T21:57:54Z","abstract_excerpt":"We propose and test stable algorithms for the reconstruction of the internal conductivity of a biological object using acousto-electric measurements. Namely, the conventional impedance tomography scheme is supplemented by scanning the object with acoustic waves that slightly perturb the conductivity and cause the change in the electric potential measured on the boundary of the object. These perturbations of the potential are then used as the data for the reconstruction of the conductivity. The present method does not rely on \"perfectly focused\" acoustic beams. Instead, more realistic propagati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.3059","kind":"arxiv","version":3},"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":"2026-05-18T02:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BJt/ZaBW8S6cBrkEtzNejHGsxgqR/uZsL9l1H2VktAqbJGX8Lc9u6fBnDOGAIAaTnTCSgJIRDRmD8rifvaVpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T21:27:50.081012Z"},"content_sha256":"d36e7a7b859cb83684cd04c93cd55c5d73fc9bfb128a2d1756101a19006e489e","schema_version":"1.0","event_id":"sha256:d36e7a7b859cb83684cd04c93cd55c5d73fc9bfb128a2d1756101a19006e489e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WYY7R5XVUTHDATKVVPEM6OO2JI/bundle.json","state_url":"https://pith.science/pith/WYY7R5XVUTHDATKVVPEM6OO2JI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WYY7R5XVUTHDATKVVPEM6OO2JI/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":"2026-06-05T21:27:50Z","links":{"resolver":"https://pith.science/pith/WYY7R5XVUTHDATKVVPEM6OO2JI","bundle":"https://pith.science/pith/WYY7R5XVUTHDATKVVPEM6OO2JI/bundle.json","state":"https://pith.science/pith/WYY7R5XVUTHDATKVVPEM6OO2JI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WYY7R5XVUTHDATKVVPEM6OO2JI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:WYY7R5XVUTHDATKVVPEM6OO2JI","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":"95dbe00bb674ec5f05215c7141e1ad1cd3836e47bf6b1ed4131af6ffe93fa1bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2010-11-12T21:57:54Z","title_canon_sha256":"16c3e2a3243f81a7e31794803b69ca1e0ce035a3da327df3e43fb1dd59b3d4f0"},"schema_version":"1.0","source":{"id":"1011.3059","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.3059","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1011.3059v3","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.3059","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"WYY7R5XVUTHD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"WYY7R5XVUTHDATKV","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"WYY7R5XV","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:d36e7a7b859cb83684cd04c93cd55c5d73fc9bfb128a2d1756101a19006e489e","target":"graph","created_at":"2026-05-18T02:04:48Z","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"},"paper":{"abstract_excerpt":"We propose and test stable algorithms for the reconstruction of the internal conductivity of a biological object using acousto-electric measurements. Namely, the conventional impedance tomography scheme is supplemented by scanning the object with acoustic waves that slightly perturb the conductivity and cause the change in the electric potential measured on the boundary of the object. These perturbations of the potential are then used as the data for the reconstruction of the conductivity. The present method does not rely on \"perfectly focused\" acoustic beams. Instead, more realistic propagati","authors_text":"Leonid Kunyansky, Peter Kuchment","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2010-11-12T21:57:54Z","title":"2D and 3D reconstructions in acousto-electric tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.3059","kind":"arxiv","version":3},"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":"sha256:6e63c6cb92f00ff8b6419a3c7c8c34108a5400c216ffe034db33cadcff90f645","target":"record","created_at":"2026-05-18T02:04:48Z","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":"95dbe00bb674ec5f05215c7141e1ad1cd3836e47bf6b1ed4131af6ffe93fa1bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2010-11-12T21:57:54Z","title_canon_sha256":"16c3e2a3243f81a7e31794803b69ca1e0ce035a3da327df3e43fb1dd59b3d4f0"},"schema_version":"1.0","source":{"id":"1011.3059","kind":"arxiv","version":3}},"canonical_sha256":"b631f8f6f5a4ce304d55abc8cf39da4a1bc8cb23953430892170403489efa68a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b631f8f6f5a4ce304d55abc8cf39da4a1bc8cb23953430892170403489efa68a","first_computed_at":"2026-05-18T02:04:48.079630Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:48.079630Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YY148e+YSMdvUeyuc7hrwmw2VHHcJFbn2axRtleL2Ae7lRE9h4bt6dA1UjZKOuxc1kJkt5q/cAKjEmOLz4SRBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:48.080239Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.3059","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e63c6cb92f00ff8b6419a3c7c8c34108a5400c216ffe034db33cadcff90f645","sha256:d36e7a7b859cb83684cd04c93cd55c5d73fc9bfb128a2d1756101a19006e489e"],"state_sha256":"df1b363cc455c9ccf33f948e78f196cf65aeb470cd00e8883c51aedb026a0873"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1fK1psxU+qNuW3kFosPvG3qPu2YqqpLAzanZYqC0LtGOvdDREqAF2fSYzqKdNUnmr5Cv2Qu2iGNVHPNxu6AwBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T21:27:50.084549Z","bundle_sha256":"8c87ba175d9b20eb8b9830d00cfc7e6066fc73d9dd9275565603847aa58b4c4a"}}