{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5FKW5NUUJ43HUDEEQK6ASR2YTL","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":"517fde2a3bff0cf92061d6de176ae0e8feb673689bf2deed0c154120918bcb08","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-06-29T16:15:12Z","title_canon_sha256":"80db0850b86f4d3a9a4b9d733d797cf58d37376483a939d53954f24bbc1f90c5"},"schema_version":"1.0","source":{"id":"1806.11513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.11513","created_at":"2026-05-17T23:59:52Z"},{"alias_kind":"arxiv_version","alias_value":"1806.11513v1","created_at":"2026-05-17T23:59:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.11513","created_at":"2026-05-17T23:59:52Z"},{"alias_kind":"pith_short_12","alias_value":"5FKW5NUUJ43H","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5FKW5NUUJ43HUDEE","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5FKW5NUU","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:c6d225e1c2dc52ff9ad13e0246a202d751d1c8763ccc4d4b76562ab3bb48cfdc","target":"graph","created_at":"2026-05-17T23:59:52Z","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":"Optomechanical SiN nano-oscillators in high-finesse Fabry-Perot cavities can be used to investigate the interaction between mechanical and optical degree of freedom for ultra-sensitive metrology and fundamental quantum mechanical studies. In this work we present a nano-oscillator made of a high-stress round-shaped SiN membrane with an integrated on-chip 3D seismic filter properly designed to reduce mechanical losses. This oscillator works in the 200 kHz - 5 MHz range and features a mechanical quality factor of $Q\\simeq10^7$ and a Q-frequency product in excess of $6.2 \\times 10^{12}$ Hz at room","authors_text":"Antonio Borrielli, Antonio Pontin, Bruno Morana, Enrico Serra, Francesco Marin, Giovanni Andrea Prodi, Gregory Pandraud, Michele Bonaldi, Pasqualina M. Sarro","cross_cats":["physics.optics","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-06-29T16:15:12Z","title":"Silicon Nitride MOMS Oscillator for Room Temperature Quantum Optomechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.11513","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":"sha256:0169845ae09f171d1d9409d9c3b6bcf60f562707a228206428d1aebe5a11bc12","target":"record","created_at":"2026-05-17T23:59:52Z","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":"517fde2a3bff0cf92061d6de176ae0e8feb673689bf2deed0c154120918bcb08","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-06-29T16:15:12Z","title_canon_sha256":"80db0850b86f4d3a9a4b9d733d797cf58d37376483a939d53954f24bbc1f90c5"},"schema_version":"1.0","source":{"id":"1806.11513","kind":"arxiv","version":1}},"canonical_sha256":"e9556eb6944f367a0c8482bc0947589af4b0623100ede37633f85df270670c70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9556eb6944f367a0c8482bc0947589af4b0623100ede37633f85df270670c70","first_computed_at":"2026-05-17T23:59:52.387791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:52.387791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SnSBG0N/HS9gMnGQunmS3hFqKRoxEnuzgXVEEc2hn1ikV2qg2wRUOCOk/PJ235PHjSI0YkuQ8AGIN0XS5nOtCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:52.388222Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.11513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0169845ae09f171d1d9409d9c3b6bcf60f562707a228206428d1aebe5a11bc12","sha256:c6d225e1c2dc52ff9ad13e0246a202d751d1c8763ccc4d4b76562ab3bb48cfdc"],"state_sha256":"4e375ddf3d1196b958678e4fa12115a312a759441e6ffbf5c2f803daa69ea43e"}