{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:P6CEORECVXL5ESI5ZLCWS4NWL7","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":"19fe571adfa74248033987522b82ffe20951b74e0880c71f2d8115f4842db555","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-09-07T22:06:51Z","title_canon_sha256":"34949623ff8c34ad7d840fc292ea632296d3c912bbcd309a8803ec961a126413"},"schema_version":"1.0","source":{"id":"1909.03344","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.03344","created_at":"2026-07-05T01:20:11Z"},{"alias_kind":"arxiv_version","alias_value":"1909.03344v2","created_at":"2026-07-05T01:20:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.03344","created_at":"2026-07-05T01:20:11Z"},{"alias_kind":"pith_short_12","alias_value":"P6CEORECVXL5","created_at":"2026-07-05T01:20:11Z"},{"alias_kind":"pith_short_16","alias_value":"P6CEORECVXL5ESI5","created_at":"2026-07-05T01:20:11Z"},{"alias_kind":"pith_short_8","alias_value":"P6CEOREC","created_at":"2026-07-05T01:20:11Z"}],"graph_snapshots":[{"event_id":"sha256:7db138c07a38af35d76811dca8faa5209cac4ea9baa64c736625d0024306bd73","target":"graph","created_at":"2026-07-05T01:20:11Z","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/1909.03344/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We exploit the premises of exceptional points of degeneracy (EPDs) induced in linear time-periodic (LTP) systems to achieve extremely sensitive biosensors. The EPD is formed in a single LC resonator where the total capacitance is comprised of a time-varying capacitor in parallel to a biosensing capacitor. We use the time-periodic variation of a system parameter (e.g., capacitance) to achieve a second order EPD aiming at improving the sensitivity of liquid based radio frequency biosensors, leading to an intrinsic ultra sensitivity. We show the emergence of EPDs in such a system and the ultra se","authors_text":"Amirhossein Hajiaghajani, Filippo Capolino, Hamidreza Kazemi, Manik Dautta, Mohamed Y. Nada, Muhannad Alshetaiwi, Peter Tseng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-09-07T22:06:51Z","title":"Ultra-Sensitive Radio Frequency Biosensor at an Exceptional Point of Degeneracy induced by Time Modulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.03344","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:e0f1518bfb877ac9fdfb6666fd8b687d609ef9f20d9c6893fe1378366b9caaa9","target":"record","created_at":"2026-07-05T01:20:11Z","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":"19fe571adfa74248033987522b82ffe20951b74e0880c71f2d8115f4842db555","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2019-09-07T22:06:51Z","title_canon_sha256":"34949623ff8c34ad7d840fc292ea632296d3c912bbcd309a8803ec961a126413"},"schema_version":"1.0","source":{"id":"1909.03344","kind":"arxiv","version":2}},"canonical_sha256":"7f84474482add7d2491dcac56971b65fdeedb571d124d7e17a23efc7b04dd651","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f84474482add7d2491dcac56971b65fdeedb571d124d7e17a23efc7b04dd651","first_computed_at":"2026-07-05T01:20:11.986079Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:20:11.986079Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0aQV9Oal3j45IaqFS0Xbw74JEyQEjONQOEzawRZuzYT3vfPsyHSijxTwBkyEnncg1G6yAhKeD1ty+hiy/WnOCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:20:11.986515Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.03344","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0f1518bfb877ac9fdfb6666fd8b687d609ef9f20d9c6893fe1378366b9caaa9","sha256:7db138c07a38af35d76811dca8faa5209cac4ea9baa64c736625d0024306bd73"],"state_sha256":"eb103d62ef58189af2a5d77eaa3648f355e13bc6515eaa5050cbadc6c7e602d4"}