{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:BW3OWW24RN5TJ3XHWOKFRFLDZ7","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":"866c2cf4c8e51dad37f192ca25dc07bd3d22478e52d16984cfed1d229727b6cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-21T18:12:13Z","title_canon_sha256":"2aff012137a76204496280616c832a6d216e456de58e5f6b845e7072a60b6e95"},"schema_version":"1.0","source":{"id":"1107.4330","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.4330","created_at":"2026-05-18T02:01:11Z"},{"alias_kind":"arxiv_version","alias_value":"1107.4330v1","created_at":"2026-05-18T02:01:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.4330","created_at":"2026-05-18T02:01:11Z"},{"alias_kind":"pith_short_12","alias_value":"BW3OWW24RN5T","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"BW3OWW24RN5TJ3XH","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"BW3OWW24","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:9e3181fbcef7611388fd259c859289d9f0c9a748a842c94d0c83bd9f4c477ef1","target":"graph","created_at":"2026-05-18T02:01:11Z","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"},"paper":{"abstract_excerpt":"Microwave Kinetic Inductance Detectors (MKIDs) have shown great potential for sub-mm instrumentation because of the high scalability of the technology. Here we demonstrate for the first time in the sub-mm band (0.1...2 mm) a photon noise limited performance of a small antenna coupled MKID detector array and we describe the relation between photon noise and MKID intrinsic generation-recombination noise. Additionally we use the observed photon noise to measure the optical efficiency of detectors to be 0.8+-0.2.","authors_text":"A. Endo, A. M. Baryshev, J. J. A. Baselmans, L. Ferrari, P. Diener, R. M. J. Janssen, S. J. C. Yates","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-21T18:12:13Z","title":"Photon noise limited radiation detection with lens-antenna coupled Microwave Kinetic Inductance Detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.4330","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":"sha256:7741e5795a49cf190eeafcf7991622926651126c9e023af09a04d34460558160","target":"record","created_at":"2026-05-18T02:01:11Z","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":"866c2cf4c8e51dad37f192ca25dc07bd3d22478e52d16984cfed1d229727b6cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-07-21T18:12:13Z","title_canon_sha256":"2aff012137a76204496280616c832a6d216e456de58e5f6b845e7072a60b6e95"},"schema_version":"1.0","source":{"id":"1107.4330","kind":"arxiv","version":1}},"canonical_sha256":"0db6eb5b5c8b7b34eee7b394589563cfcc09cae28fd0850c5eb5f27b5290d6cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0db6eb5b5c8b7b34eee7b394589563cfcc09cae28fd0850c5eb5f27b5290d6cb","first_computed_at":"2026-05-18T02:01:11.858845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:11.858845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AcWGJs3XYZ3Fl4qIMeZ7OHOS4jsxz909/sVyHv/nNGrTl0Td91U6ATW5VzqQPdJsizmb5pXWLVElmMwNzEysDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:11.859637Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.4330","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7741e5795a49cf190eeafcf7991622926651126c9e023af09a04d34460558160","sha256:9e3181fbcef7611388fd259c859289d9f0c9a748a842c94d0c83bd9f4c477ef1"],"state_sha256":"cd27a4993dc0e07ad7da23fc6edc7d8e920cc56675e879710ec5e42065edb065"}