{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ZHEMNO6TUD3FLIYYTJM4CMYOZC","short_pith_number":"pith:ZHEMNO6T","canonical_record":{"source":{"id":"2012.04588","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-12-08T17:44:32Z","cross_cats_sorted":["cs.NA","math.DG","math.NA"],"title_canon_sha256":"9e7a9347affd277a87c0b739ceb42da9e3c03a58396ecc544fed77a10daa0f3b","abstract_canon_sha256":"5b9895b98588c48cbb3bfb8632614f92e8dd7873a6862ef6d1ee5bc5872f530f"},"schema_version":"1.0"},"canonical_sha256":"c9c8c6bbd3a0f655a3189a59c1330ec8a4b2762b0f975037b5764b340557008d","source":{"kind":"arxiv","id":"2012.04588","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.04588","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"arxiv_version","alias_value":"2012.04588v1","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.04588","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"pith_short_12","alias_value":"ZHEMNO6TUD3F","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"pith_short_16","alias_value":"ZHEMNO6TUD3FLIYY","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"pith_short_8","alias_value":"ZHEMNO6T","created_at":"2026-07-05T02:38:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ZHEMNO6TUD3FLIYYTJM4CMYOZC","target":"record","payload":{"canonical_record":{"source":{"id":"2012.04588","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-12-08T17:44:32Z","cross_cats_sorted":["cs.NA","math.DG","math.NA"],"title_canon_sha256":"9e7a9347affd277a87c0b739ceb42da9e3c03a58396ecc544fed77a10daa0f3b","abstract_canon_sha256":"5b9895b98588c48cbb3bfb8632614f92e8dd7873a6862ef6d1ee5bc5872f530f"},"schema_version":"1.0"},"canonical_sha256":"c9c8c6bbd3a0f655a3189a59c1330ec8a4b2762b0f975037b5764b340557008d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:38:53.228591Z","signature_b64":"1UX6IR3MrHkFWQvlNcv5oB/4mi/qyolb0KjVLD8OMxkQxI4xJOd/pzu5usQT03I7xMiBaILzUuTVCgYeSfSwBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c9c8c6bbd3a0f655a3189a59c1330ec8a4b2762b0f975037b5764b340557008d","last_reissued_at":"2026-07-05T02:38:53.228104Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:38:53.228104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.04588","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":"2026-07-05T02:38:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L/8xik/ZGHJR+6HHYla3wIWjh2BpnwsMJorIkz3LxlPePpZP3lEM8rq+fiZXBUe0DBKk9iMSGa68tSolR+eeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T15:53:17.151650Z"},"content_sha256":"1d09366421615be323185045130fa01365079a50518abf091566d6a6983e5e37","schema_version":"1.0","event_id":"sha256:1d09366421615be323185045130fa01365079a50518abf091566d6a6983e5e37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ZHEMNO6TUD3FLIYYTJM4CMYOZC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-planar sensing skins for structural health monitoring based on electrical resistance tomography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA","math.DG","math.NA"],"primary_cat":"physics.comp-ph","authors_text":"Aku Sepp\\\"anen, Jyrki Jauhiainen, Mohammad Pour-Ghaz, Tuomo Valkonen","submitted_at":"2020-12-08T17:44:32Z","abstract_excerpt":"Electrical resistance tomography (ERT) -based distributed surface sensing systems, or sensing skins, offer alternative sensing techniques for structural health monitoring, providing capabilities for distributed sensing of, for example, damage, strain and temperature. Currently, however, the computational techniques utilized for sensing skins are limited to planar surfaces. In this paper, to overcome this limitation, we generalize the ERT-based surface sensing to non-planar surfaces covering arbitrarily shaped three-dimensional structures; We construct a framework in which we reformulate the im"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.04588","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2012.04588/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":"2026-07-05T02:38:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3IuF4qmmTBTcdPOM9QPY2cKogBP/4wupFflc5UVGPG1ZY/p0GiHLgHw/v5bybgHH8TDsnalsxsk05Upl9RVvDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T15:53:17.152054Z"},"content_sha256":"b1224e89fb21d503c341bc1478d3e196a3a1216c1025fd5767e8871483e84f8e","schema_version":"1.0","event_id":"sha256:b1224e89fb21d503c341bc1478d3e196a3a1216c1025fd5767e8871483e84f8e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC/bundle.json","state_url":"https://pith.science/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC/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":"2026-07-24T15:53:17Z","links":{"resolver":"https://pith.science/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC","bundle":"https://pith.science/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC/bundle.json","state":"https://pith.science/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZHEMNO6TUD3FLIYYTJM4CMYOZC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ZHEMNO6TUD3FLIYYTJM4CMYOZC","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":"5b9895b98588c48cbb3bfb8632614f92e8dd7873a6862ef6d1ee5bc5872f530f","cross_cats_sorted":["cs.NA","math.DG","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-12-08T17:44:32Z","title_canon_sha256":"9e7a9347affd277a87c0b739ceb42da9e3c03a58396ecc544fed77a10daa0f3b"},"schema_version":"1.0","source":{"id":"2012.04588","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.04588","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"arxiv_version","alias_value":"2012.04588v1","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.04588","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"pith_short_12","alias_value":"ZHEMNO6TUD3F","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"pith_short_16","alias_value":"ZHEMNO6TUD3FLIYY","created_at":"2026-07-05T02:38:53Z"},{"alias_kind":"pith_short_8","alias_value":"ZHEMNO6T","created_at":"2026-07-05T02:38:53Z"}],"graph_snapshots":[{"event_id":"sha256:b1224e89fb21d503c341bc1478d3e196a3a1216c1025fd5767e8871483e84f8e","target":"graph","created_at":"2026-07-05T02:38:53Z","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/2012.04588/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Electrical resistance tomography (ERT) -based distributed surface sensing systems, or sensing skins, offer alternative sensing techniques for structural health monitoring, providing capabilities for distributed sensing of, for example, damage, strain and temperature. Currently, however, the computational techniques utilized for sensing skins are limited to planar surfaces. In this paper, to overcome this limitation, we generalize the ERT-based surface sensing to non-planar surfaces covering arbitrarily shaped three-dimensional structures; We construct a framework in which we reformulate the im","authors_text":"Aku Sepp\\\"anen, Jyrki Jauhiainen, Mohammad Pour-Ghaz, Tuomo Valkonen","cross_cats":["cs.NA","math.DG","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-12-08T17:44:32Z","title":"Non-planar sensing skins for structural health monitoring based on electrical resistance tomography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.04588","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":"sha256:1d09366421615be323185045130fa01365079a50518abf091566d6a6983e5e37","target":"record","created_at":"2026-07-05T02:38:53Z","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":"5b9895b98588c48cbb3bfb8632614f92e8dd7873a6862ef6d1ee5bc5872f530f","cross_cats_sorted":["cs.NA","math.DG","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-12-08T17:44:32Z","title_canon_sha256":"9e7a9347affd277a87c0b739ceb42da9e3c03a58396ecc544fed77a10daa0f3b"},"schema_version":"1.0","source":{"id":"2012.04588","kind":"arxiv","version":1}},"canonical_sha256":"c9c8c6bbd3a0f655a3189a59c1330ec8a4b2762b0f975037b5764b340557008d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9c8c6bbd3a0f655a3189a59c1330ec8a4b2762b0f975037b5764b340557008d","first_computed_at":"2026-07-05T02:38:53.228104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:38:53.228104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1UX6IR3MrHkFWQvlNcv5oB/4mi/qyolb0KjVLD8OMxkQxI4xJOd/pzu5usQT03I7xMiBaILzUuTVCgYeSfSwBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:38:53.228591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.04588","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d09366421615be323185045130fa01365079a50518abf091566d6a6983e5e37","sha256:b1224e89fb21d503c341bc1478d3e196a3a1216c1025fd5767e8871483e84f8e"],"state_sha256":"c752ad558330e66d06e98a97f505a9a031fcd89ffc96449f1ff919d404985b3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l3uZ9PTuFcHz85R1xA0kPFaYcbsGoczW62Ae1knOcI6IfW/pQDCsip2xlBqfnyWOEsrB2i5kIhhbnYgL8QyPBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-24T15:53:17.154774Z","bundle_sha256":"7265329f70777d2915406e935d279ec39e851848c8c3a7e3288e7e72b61d0ded"}}