{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EDEEVQLYSN6RHTUCEARTGXK2K6","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":"20d3b9005f1bddbbf47dde6d50b4341fd63136064b2df2b8f3033f6478083e6d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-04T18:32:33Z","title_canon_sha256":"908df057022bec1cf6e759d48793c812a481a22b79d14e9182fdeed24f343bce"},"schema_version":"1.0","source":{"id":"1903.01423","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.01423","created_at":"2026-07-05T01:20:10Z"},{"alias_kind":"arxiv_version","alias_value":"1903.01423v2","created_at":"2026-07-05T01:20:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.01423","created_at":"2026-07-05T01:20:10Z"},{"alias_kind":"pith_short_12","alias_value":"EDEEVQLYSN6R","created_at":"2026-07-05T01:20:10Z"},{"alias_kind":"pith_short_16","alias_value":"EDEEVQLYSN6RHTUC","created_at":"2026-07-05T01:20:10Z"},{"alias_kind":"pith_short_8","alias_value":"EDEEVQLY","created_at":"2026-07-05T01:20:10Z"}],"graph_snapshots":[{"event_id":"sha256:051ef2cc3377f0643147ae2acdfa561cfea2a9e8e98ab3700b04fd5fa98119bf","target":"graph","created_at":"2026-07-05T01:20:10Z","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/1903.01423/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"On-chip actuation and readout of mechanical motion is key to characterize mechanical resonators and exploit them for new applications. We capacitively couple a silicon nitride membrane to an off resonant radio-frequency cavity formed by a lumped element circuit. Despite a low cavity quality factor (Q$_\\mathrm{E}\\approx$ 7.4) and off resonant, room temperature operation, we are able to parametrize several mechanical modes and estimate their optomechanical coupling strengths. This enables real-time measurements of the membrane's driven motion and fast characterization without requiring a superco","authors_text":"A.N. Pearson, E.A. Laird, G.A.D. Briggs, K.E. Khosla, M. Mergenthaler, N. Ares","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-04T18:32:33Z","title":"Radio-frequency optomechanical characterization of a silicon nitride drum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.01423","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:d67b95d1d828bc8c8d15f1886b389ea06fabca4764ea9832363a26012fcb98d1","target":"record","created_at":"2026-07-05T01:20:10Z","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":"20d3b9005f1bddbbf47dde6d50b4341fd63136064b2df2b8f3033f6478083e6d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-03-04T18:32:33Z","title_canon_sha256":"908df057022bec1cf6e759d48793c812a481a22b79d14e9182fdeed24f343bce"},"schema_version":"1.0","source":{"id":"1903.01423","kind":"arxiv","version":2}},"canonical_sha256":"20c84ac178937d13ce822023335d5a57a9f7ab6c36ae16d4287de51338166c42","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20c84ac178937d13ce822023335d5a57a9f7ab6c36ae16d4287de51338166c42","first_computed_at":"2026-07-05T01:20:10.359774Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:20:10.359774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d7FSJxUYVhgi2f7Ngyoxtw9E+m3Hamz3gWSEhymrJZfR/yuwh5cHdsuMP8hkKcboRAIHgqSM/Qnj5uc0/AbbBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:20:10.360200Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.01423","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d67b95d1d828bc8c8d15f1886b389ea06fabca4764ea9832363a26012fcb98d1","sha256:051ef2cc3377f0643147ae2acdfa561cfea2a9e8e98ab3700b04fd5fa98119bf"],"state_sha256":"e5efb0a2de0a4fdfc5656c01d347cc54e6c84188a508b425d51dca606118ca17"}