{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NFQW3WBXRIH2ZRHYAT4TFSL5AY","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":"60f1f44613f2228f3613b3fc4ec22003d2ff5b2691791ba55c68541c2f86c725","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-08-18T19:05:51Z","title_canon_sha256":"8967ce2ba503ce4cf5e231e8d56d45ac79520b5a3a1f473c7e38d9104905f3fd"},"schema_version":"1.0","source":{"id":"1508.04412","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.04412","created_at":"2026-05-18T01:23:16Z"},{"alias_kind":"arxiv_version","alias_value":"1508.04412v2","created_at":"2026-05-18T01:23:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.04412","created_at":"2026-05-18T01:23:16Z"},{"alias_kind":"pith_short_12","alias_value":"NFQW3WBXRIH2","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"NFQW3WBXRIH2ZRHY","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"NFQW3WBX","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:57e99a65154a0e416eb1e454d7cc0c48eecb6e481a7432f10079fa687a1c1ab8","target":"graph","created_at":"2026-05-18T01:23:16Z","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":"We present methods for efficient characterization of an optical coherent state $|\\alpha\\rangle$. We choose measurement settings adaptively and stochastically, based on data while it is collected. Our algorithm divides the estimation into two distinct steps: (i) before the first detection of a vacuum state, the probability of choosing a measurement setting is proportional to detecting vacuum with the setting, which makes using too similar measurement settings twice unlikely; and (ii) after the first detection of vacuum, we focus measurements in the region where vacuum is most likely to be detec","authors_text":"Frank K. Wilhelm, Kevin Pack, Markku P.V. Stenberg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-08-18T19:05:51Z","title":"Adaptive identification of coherent states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.04412","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":"sha256:5169a7cf1231a0278b1e5dc4e356eefe13928a191f0781a50be0848a32ce3e81","target":"record","created_at":"2026-05-18T01:23:16Z","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":"60f1f44613f2228f3613b3fc4ec22003d2ff5b2691791ba55c68541c2f86c725","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-08-18T19:05:51Z","title_canon_sha256":"8967ce2ba503ce4cf5e231e8d56d45ac79520b5a3a1f473c7e38d9104905f3fd"},"schema_version":"1.0","source":{"id":"1508.04412","kind":"arxiv","version":2}},"canonical_sha256":"69616dd8378a0facc4f804f932c97d060f88eff1d34083882f9cf960d52d0bfa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69616dd8378a0facc4f804f932c97d060f88eff1d34083882f9cf960d52d0bfa","first_computed_at":"2026-05-18T01:23:16.222281Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:16.222281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LfHcCFbBTJf4QVAEH4fvEn0BiRenTlh9yRIMYzmuYgjIESBl0O335NZ2BgvFutpxVOr4HmWPO5RU7FAHUXqrAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:16.223030Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.04412","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5169a7cf1231a0278b1e5dc4e356eefe13928a191f0781a50be0848a32ce3e81","sha256:57e99a65154a0e416eb1e454d7cc0c48eecb6e481a7432f10079fa687a1c1ab8"],"state_sha256":"ca9ed3aae43afb49fb7484a6b23d5787378d18b9565d11aeeef077031b377e21"}