{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:47DYIZKROLYXZH6H65MZEWD32U","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":"cc03017550d366ae354d11d5b694b67fb97ec73bff301406ba7677f752e60465","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-15T00:35:35Z","title_canon_sha256":"91ba7e788c1b9e399779845e39c43b27235d6cf4fdb2bd6992d1f49cb131061e"},"schema_version":"1.0","source":{"id":"1205.3229","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.3229","created_at":"2026-05-18T01:57:32Z"},{"alias_kind":"arxiv_version","alias_value":"1205.3229v1","created_at":"2026-05-18T01:57:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3229","created_at":"2026-05-18T01:57:32Z"},{"alias_kind":"pith_short_12","alias_value":"47DYIZKROLYX","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"47DYIZKROLYXZH6H","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"47DYIZKR","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:6916a068e16d4d71be73671c1a4200a6f0f38edeb8318f1ea68e4dbae0fd374c","target":"graph","created_at":"2026-05-18T01:57:32Z","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":"The advent of stable, highly squeezed states of light has generated great interest in the gravitational wave community as a means for improving the quantumnoise- limited performance of advanced interferometric detectors. To confidently measure these squeezed states, it is first necessary to measure the shot-noise across the frequency band of interest. Technical noise, such as non-stationary events, beam pointing, and parasitic interference, can corrupt shot-noise measurements at low Fourier frequencies, below tens of kilo-Hertz. In this paper we present a qualitative investigation into all of ","authors_text":"A. Khalaidovski, B. C. Buchler, C. M. Mow-Lowry, D. A. Shaddock, D. E. McClelland, H. Vahlbruch, M. S. Stefszky, P. K. Lam, R. Schnabel, S. S. Y. Chua","cross_cats":["astro-ph.IM","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-15T00:35:35Z","title":"Balanced Homodyne Detection of Optical Quantum States at Audio-Band Frequencies and Below"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3229","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":"sha256:847607426f61594ffba2ae80ab8383fb0652fb165e300161174d8a3ac00e6807","target":"record","created_at":"2026-05-18T01:57:32Z","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":"cc03017550d366ae354d11d5b694b67fb97ec73bff301406ba7677f752e60465","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-05-15T00:35:35Z","title_canon_sha256":"91ba7e788c1b9e399779845e39c43b27235d6cf4fdb2bd6992d1f49cb131061e"},"schema_version":"1.0","source":{"id":"1205.3229","kind":"arxiv","version":1}},"canonical_sha256":"e7c784655172f17c9fc7f75992587bd53f3a010aeea12bf740e30b76cf02c6a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7c784655172f17c9fc7f75992587bd53f3a010aeea12bf740e30b76cf02c6a9","first_computed_at":"2026-05-18T01:57:32.181947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:32.181947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/mXey/wXbOgOQr3ORsb1t1d/wr1e9rTmvha7d3nYrq4YxfT7JJjuR0nGeOEgkB1qEwSCvNdO4/DSj4CzaxflCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:32.182604Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.3229","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:847607426f61594ffba2ae80ab8383fb0652fb165e300161174d8a3ac00e6807","sha256:6916a068e16d4d71be73671c1a4200a6f0f38edeb8318f1ea68e4dbae0fd374c"],"state_sha256":"1395e0c78a3144cbfe26dd4928b2a2a08e4f7958a118019a9e728dae976712d9"}