{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:HZD64IC7M2ZLJZ4MGRIUUURGLU","short_pith_number":"pith:HZD64IC7","canonical_record":{"source":{"id":"2304.07222","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2023-04-13T07:11:01Z","cross_cats_sorted":["astro-ph.IM","hep-ex"],"title_canon_sha256":"84a0d59c1dd5418784fb91f1036f8755d2df9414b1c1c470f14b35357714e6ea","abstract_canon_sha256":"ccdcc0f195be2ff9477de57a8103fb6fb5bfc0d095e1073c6f32003c9aa97726"},"schema_version":"1.0"},"canonical_sha256":"3e47ee205f66b2b4e78c34514a52265d0d32b920eede1bae187d4fdd4d48f655","source":{"kind":"arxiv","id":"2304.07222","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.07222","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"arxiv_version","alias_value":"2304.07222v2","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.07222","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"pith_short_12","alias_value":"HZD64IC7M2ZL","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"pith_short_16","alias_value":"HZD64IC7M2ZLJZ4M","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"pith_short_8","alias_value":"HZD64IC7","created_at":"2026-07-05T06:22:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:HZD64IC7M2ZLJZ4MGRIUUURGLU","target":"record","payload":{"canonical_record":{"source":{"id":"2304.07222","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2023-04-13T07:11:01Z","cross_cats_sorted":["astro-ph.IM","hep-ex"],"title_canon_sha256":"84a0d59c1dd5418784fb91f1036f8755d2df9414b1c1c470f14b35357714e6ea","abstract_canon_sha256":"ccdcc0f195be2ff9477de57a8103fb6fb5bfc0d095e1073c6f32003c9aa97726"},"schema_version":"1.0"},"canonical_sha256":"3e47ee205f66b2b4e78c34514a52265d0d32b920eede1bae187d4fdd4d48f655","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:22:03.094063Z","signature_b64":"bDFLvZxudU49/JfVM4TkvqYZIzxYlZrwVeLPcdhu8kuzcyiMBOkXIA8G/jmd6bxBFzRrzMZC7VeEtmA4FmzsBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e47ee205f66b2b4e78c34514a52265d0d32b920eede1bae187d4fdd4d48f655","last_reissued_at":"2026-07-05T06:22:03.093573Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:22:03.093573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.07222","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:22:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EIQcesZ2x8TQGCwxLJwjKeig9jQXkZFPPQ5zJCOVNyi9WXmjf7UV3JSABd52mNRT18sCBjhEbx9+qSaeYndlCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:27:02.227440Z"},"content_sha256":"d7dec083fbc14dba9d67d13cfd56f350eeed6e0b2c00d64cc6c743d8342ae6d6","schema_version":"1.0","event_id":"sha256:d7dec083fbc14dba9d67d13cfd56f350eeed6e0b2c00d64cc6c743d8342ae6d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:HZD64IC7M2ZLJZ4MGRIUUURGLU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CAPP Axion Search Experiments with Quantum Noise Limited Amplifiers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","hep-ex"],"primary_cat":"cond-mat.supr-con","authors_text":"Andrei Matlashov, Arjan F. van Loo, Boris I. Ivanov, \\c{C}a\\u{g}lar Kutlu, JinMyeong Kim, Seonjeong Oh, Sergey V. Uchaikin, Violeta Gkika, Woohyun Chung, Yannis K. Semertzidis, Yasunobu Nakamura","submitted_at":"2023-04-13T07:11:01Z","abstract_excerpt":"The axion is expected to solve the strong CP problem of quantum chromodynamics and is one of the leading candidates for dark matter. CAPP in South Korea has several axion search experiments based on cavity haloscopes in the frequency range of 1-6 GHz. The main effort focuses on operation of the experiments with the highest possible sensitivity. It requires maintenance of the haloscopes at the lowest physical temperature in the range of mK and usage of low noise components to amplify the weak axion signal. We report development and operation of low noise amplifiers for 5 haloscope experiments t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.07222","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2304.07222/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:22:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nc9pC+dn/VDzb2f4d6MFiJV7qGGAY6ZnBWgYcY0fc9OVU3b38sZkvCdok8q04hcHfD6RpFm5sSeuebn/VMu0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:27:02.227829Z"},"content_sha256":"9bf1be9706bdd7c8caea6ac1a78116bc3933256072005ddb6d963587d2ce28d1","schema_version":"1.0","event_id":"sha256:9bf1be9706bdd7c8caea6ac1a78116bc3933256072005ddb6d963587d2ce28d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU/bundle.json","state_url":"https://pith.science/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-03T17:27:02Z","links":{"resolver":"https://pith.science/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU","bundle":"https://pith.science/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU/bundle.json","state":"https://pith.science/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HZD64IC7M2ZLJZ4MGRIUUURGLU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:HZD64IC7M2ZLJZ4MGRIUUURGLU","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":"ccdcc0f195be2ff9477de57a8103fb6fb5bfc0d095e1073c6f32003c9aa97726","cross_cats_sorted":["astro-ph.IM","hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2023-04-13T07:11:01Z","title_canon_sha256":"84a0d59c1dd5418784fb91f1036f8755d2df9414b1c1c470f14b35357714e6ea"},"schema_version":"1.0","source":{"id":"2304.07222","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.07222","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"arxiv_version","alias_value":"2304.07222v2","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.07222","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"pith_short_12","alias_value":"HZD64IC7M2ZL","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"pith_short_16","alias_value":"HZD64IC7M2ZLJZ4M","created_at":"2026-07-05T06:22:03Z"},{"alias_kind":"pith_short_8","alias_value":"HZD64IC7","created_at":"2026-07-05T06:22:03Z"}],"graph_snapshots":[{"event_id":"sha256:9bf1be9706bdd7c8caea6ac1a78116bc3933256072005ddb6d963587d2ce28d1","target":"graph","created_at":"2026-07-05T06:22:03Z","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/2304.07222/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The axion is expected to solve the strong CP problem of quantum chromodynamics and is one of the leading candidates for dark matter. CAPP in South Korea has several axion search experiments based on cavity haloscopes in the frequency range of 1-6 GHz. The main effort focuses on operation of the experiments with the highest possible sensitivity. It requires maintenance of the haloscopes at the lowest physical temperature in the range of mK and usage of low noise components to amplify the weak axion signal. We report development and operation of low noise amplifiers for 5 haloscope experiments t","authors_text":"Andrei Matlashov, Arjan F. van Loo, Boris I. Ivanov, \\c{C}a\\u{g}lar Kutlu, JinMyeong Kim, Seonjeong Oh, Sergey V. Uchaikin, Violeta Gkika, Woohyun Chung, Yannis K. Semertzidis, Yasunobu Nakamura","cross_cats":["astro-ph.IM","hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2023-04-13T07:11:01Z","title":"CAPP Axion Search Experiments with Quantum Noise Limited Amplifiers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.07222","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:d7dec083fbc14dba9d67d13cfd56f350eeed6e0b2c00d64cc6c743d8342ae6d6","target":"record","created_at":"2026-07-05T06:22:03Z","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":"ccdcc0f195be2ff9477de57a8103fb6fb5bfc0d095e1073c6f32003c9aa97726","cross_cats_sorted":["astro-ph.IM","hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2023-04-13T07:11:01Z","title_canon_sha256":"84a0d59c1dd5418784fb91f1036f8755d2df9414b1c1c470f14b35357714e6ea"},"schema_version":"1.0","source":{"id":"2304.07222","kind":"arxiv","version":2}},"canonical_sha256":"3e47ee205f66b2b4e78c34514a52265d0d32b920eede1bae187d4fdd4d48f655","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e47ee205f66b2b4e78c34514a52265d0d32b920eede1bae187d4fdd4d48f655","first_computed_at":"2026-07-05T06:22:03.093573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:22:03.093573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bDFLvZxudU49/JfVM4TkvqYZIzxYlZrwVeLPcdhu8kuzcyiMBOkXIA8G/jmd6bxBFzRrzMZC7VeEtmA4FmzsBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:22:03.094063Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.07222","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7dec083fbc14dba9d67d13cfd56f350eeed6e0b2c00d64cc6c743d8342ae6d6","sha256:9bf1be9706bdd7c8caea6ac1a78116bc3933256072005ddb6d963587d2ce28d1"],"state_sha256":"611261b4b986b973fb2775ee8848bfc153e0fadc49bcb4fab13c1258c5c507df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6U5f4W6vB13+qb4aZTmYeEtArVrBC8njmmUIudJCjUmXdFA1SXQvm2iIFZ+26SgiKwzNc5pgxxP0ON8N2atWCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:27:02.230590Z","bundle_sha256":"e1f06bd467abe055fed1b7eb06c0e3130002b7a103dd98f16b4206b3f210690c"}}