{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KRICA6QPXR4JOSBRU6ZECSVU6X","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":"96214d8eefe05ec9dd1e2ad302b7e14e9ce8c8c41cff9be8cbf9d97081354bfc","cross_cats_sorted":["cs.SY","eess.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-06-27T04:19:14Z","title_canon_sha256":"dbb4ec86d77ebc3cb3c8175cb576b7b51042308fcb70ca6a402e1379be03f0f5"},"schema_version":"1.0","source":{"id":"1907.01520","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01520","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01520v1","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01520","created_at":"2026-05-17T23:41:40Z"},{"alias_kind":"pith_short_12","alias_value":"KRICA6QPXR4J","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"KRICA6QPXR4JOSBR","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"KRICA6QP","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:7c8a672f119be751b92dd9e2d255c094176e63203a737300461edb244619bc27","target":"graph","created_at":"2026-05-17T23:41:40Z","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":"High-dimensional wireless power transfer (WPT) systems have received increasing attention for charging mobile devices. With the receivers have higher spatial freedom, the systems are more susceptible to the metal objects in the surroundings. However, conventional methods for metal object detection (MOD) can't satisfy the requirements of safety and stability of new systems. This paper proposed a metal detection method which is more suitable for high-dimensional WPT systems. The key feature of the proposed method is combining load impedance and input power characteristics curves to determine whe","authors_text":"Mei Su, Qi Zhu, Zixi Liu","cross_cats":["cs.SY","eess.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-06-27T04:19:14Z","title":"Metal Object Detection Based on Load Impedance and Input Power Characteristics for High-dimensional WPT System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01520","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":"sha256:91874433f173e0e213a398fa722d70b059c6b7df1c28e7a0337fcd874d4814dd","target":"record","created_at":"2026-05-17T23:41:40Z","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":"96214d8eefe05ec9dd1e2ad302b7e14e9ce8c8c41cff9be8cbf9d97081354bfc","cross_cats_sorted":["cs.SY","eess.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-06-27T04:19:14Z","title_canon_sha256":"dbb4ec86d77ebc3cb3c8175cb576b7b51042308fcb70ca6a402e1379be03f0f5"},"schema_version":"1.0","source":{"id":"1907.01520","kind":"arxiv","version":1}},"canonical_sha256":"5450207a0fbc78974831a7b2414ab4f5c0c3197a068b7efd8fb8c6be63420ae6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5450207a0fbc78974831a7b2414ab4f5c0c3197a068b7efd8fb8c6be63420ae6","first_computed_at":"2026-05-17T23:41:40.153588Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:40.153588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xEBwfqOJdMaK+m+D2aR0dy3WErKGMIPnt71Sd0GaO9W3Y7lrYpyTvivNN21G8XWbgIHIIdXP7GQS/X4WMTb/Ag==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:40.154293Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.01520","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91874433f173e0e213a398fa722d70b059c6b7df1c28e7a0337fcd874d4814dd","sha256:7c8a672f119be751b92dd9e2d255c094176e63203a737300461edb244619bc27"],"state_sha256":"4114f50e460eaad213ae67be1b6e9e6fa0bb1b618300b520f6748506f162ec54"}