{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:D5LWB5LSU6M4XZRL5D2NBASYP4","short_pith_number":"pith:D5LWB5LS","canonical_record":{"source":{"id":"1907.03403","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-07-08T04:58:15Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"42489b46a3ff73ed39a686be3981b3c76859a26a8edc9edae521c0614a8bc3d4","abstract_canon_sha256":"71628cb526eb05faa435016bfd57957ec671be34f09d4df977c9ff275590f481"},"schema_version":"1.0"},"canonical_sha256":"1f5760f572a799cbe62be8f4d082587f3dc1332841e468aa2ce4fc35f48407e6","source":{"kind":"arxiv","id":"1907.03403","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03403","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03403v1","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03403","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"pith_short_12","alias_value":"D5LWB5LSU6M4","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"pith_short_16","alias_value":"D5LWB5LSU6M4XZRL","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"pith_short_8","alias_value":"D5LWB5LS","created_at":"2026-07-05T00:01:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:D5LWB5LSU6M4XZRL5D2NBASYP4","target":"record","payload":{"canonical_record":{"source":{"id":"1907.03403","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-07-08T04:58:15Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"42489b46a3ff73ed39a686be3981b3c76859a26a8edc9edae521c0614a8bc3d4","abstract_canon_sha256":"71628cb526eb05faa435016bfd57957ec671be34f09d4df977c9ff275590f481"},"schema_version":"1.0"},"canonical_sha256":"1f5760f572a799cbe62be8f4d082587f3dc1332841e468aa2ce4fc35f48407e6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:01:58.828486Z","signature_b64":"8OwbGr4PjckyCABsLk+ZwS6GCok87JlSMkDDhCmMBvIpXAeat+ppcTWr/943PV23Ml8aiuzB/yF1fbmy6CYDAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f5760f572a799cbe62be8f4d082587f3dc1332841e468aa2ce4fc35f48407e6","last_reissued_at":"2026-07-05T00:01:58.828054Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:01:58.828054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.03403","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:01:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9iqKJKN3mv7zzPDug++E6ZpEOJUyGMef+dc2L0zbUakzjVhp2/WjQS0UIQN10TRKWqEYmJ6bN5z34SHjQDrGBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T15:51:06.201023Z"},"content_sha256":"e5c9d91f2618022d140d3368d1a30e99c9461510856b7e614daa32c88256ea57","schema_version":"1.0","event_id":"sha256:e5c9d91f2618022d140d3368d1a30e99c9461510856b7e614daa32c88256ea57"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:D5LWB5LSU6M4XZRL5D2NBASYP4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A measurement method for responsivity of microwave kinetic inductance detector by changing power of readout microwaves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"Chiko Otani, Hiroki Kutsuma, Makoto Hattori, Osamu Tajima, Ryo Koyano, Satoru Mima, Shugo Oguri, Tohru Taino","submitted_at":"2019-07-08T04:58:15Z","abstract_excerpt":"Superconducting detectors are a modern technology applied in various fields. The microwave kinetic inductance detector (MKID) is one of cutting-edge superconducting detector. It is based on the principle of a superconducting resonator circuit. A radiation entering the MKID breaks the Cooper pairs in the superconducting resonator, and the intensity of the radiation is detected as a variation of the resonant condition. Therefore, calibration of the detector responsivity, i.e., the variation of the resonant phase with respect to the number of Cooper-pair breaks (quasiparticles), is important. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03403","kind":"arxiv","version":1},"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/1907.03403/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":"2026-07-05T00:01:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r+KaC9jMQEmcVhhXdGYbia7E6Ckwc7LyIVMuRGcnj7WLIp49487z9J/iVkcgXVj8jjiAyuEQ7XM6G16gt14cBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T15:51:06.201595Z"},"content_sha256":"2fc17aa35f9c60921b3de36777e2ebdc98cc86b23d5a9b7fbdeb3313917c645e","schema_version":"1.0","event_id":"sha256:2fc17aa35f9c60921b3de36777e2ebdc98cc86b23d5a9b7fbdeb3313917c645e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D5LWB5LSU6M4XZRL5D2NBASYP4/bundle.json","state_url":"https://pith.science/pith/D5LWB5LSU6M4XZRL5D2NBASYP4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D5LWB5LSU6M4XZRL5D2NBASYP4/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":"2026-08-13T15:51:06Z","links":{"resolver":"https://pith.science/pith/D5LWB5LSU6M4XZRL5D2NBASYP4","bundle":"https://pith.science/pith/D5LWB5LSU6M4XZRL5D2NBASYP4/bundle.json","state":"https://pith.science/pith/D5LWB5LSU6M4XZRL5D2NBASYP4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D5LWB5LSU6M4XZRL5D2NBASYP4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:D5LWB5LSU6M4XZRL5D2NBASYP4","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":"71628cb526eb05faa435016bfd57957ec671be34f09d4df977c9ff275590f481","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-07-08T04:58:15Z","title_canon_sha256":"42489b46a3ff73ed39a686be3981b3c76859a26a8edc9edae521c0614a8bc3d4"},"schema_version":"1.0","source":{"id":"1907.03403","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03403","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03403v1","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03403","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"pith_short_12","alias_value":"D5LWB5LSU6M4","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"pith_short_16","alias_value":"D5LWB5LSU6M4XZRL","created_at":"2026-07-05T00:01:58Z"},{"alias_kind":"pith_short_8","alias_value":"D5LWB5LS","created_at":"2026-07-05T00:01:58Z"}],"graph_snapshots":[{"event_id":"sha256:2fc17aa35f9c60921b3de36777e2ebdc98cc86b23d5a9b7fbdeb3313917c645e","target":"graph","created_at":"2026-07-05T00:01:58Z","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/1907.03403/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Superconducting detectors are a modern technology applied in various fields. The microwave kinetic inductance detector (MKID) is one of cutting-edge superconducting detector. It is based on the principle of a superconducting resonator circuit. A radiation entering the MKID breaks the Cooper pairs in the superconducting resonator, and the intensity of the radiation is detected as a variation of the resonant condition. Therefore, calibration of the detector responsivity, i.e., the variation of the resonant phase with respect to the number of Cooper-pair breaks (quasiparticles), is important. We ","authors_text":"Chiko Otani, Hiroki Kutsuma, Makoto Hattori, Osamu Tajima, Ryo Koyano, Satoru Mima, Shugo Oguri, Tohru Taino","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-07-08T04:58:15Z","title":"A measurement method for responsivity of microwave kinetic inductance detector by changing power of readout microwaves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03403","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:e5c9d91f2618022d140d3368d1a30e99c9461510856b7e614daa32c88256ea57","target":"record","created_at":"2026-07-05T00:01:58Z","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":"71628cb526eb05faa435016bfd57957ec671be34f09d4df977c9ff275590f481","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-07-08T04:58:15Z","title_canon_sha256":"42489b46a3ff73ed39a686be3981b3c76859a26a8edc9edae521c0614a8bc3d4"},"schema_version":"1.0","source":{"id":"1907.03403","kind":"arxiv","version":1}},"canonical_sha256":"1f5760f572a799cbe62be8f4d082587f3dc1332841e468aa2ce4fc35f48407e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f5760f572a799cbe62be8f4d082587f3dc1332841e468aa2ce4fc35f48407e6","first_computed_at":"2026-07-05T00:01:58.828054Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:01:58.828054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8OwbGr4PjckyCABsLk+ZwS6GCok87JlSMkDDhCmMBvIpXAeat+ppcTWr/943PV23Ml8aiuzB/yF1fbmy6CYDAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:01:58.828486Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.03403","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5c9d91f2618022d140d3368d1a30e99c9461510856b7e614daa32c88256ea57","sha256:2fc17aa35f9c60921b3de36777e2ebdc98cc86b23d5a9b7fbdeb3313917c645e"],"state_sha256":"d7c7c932533720ebdf2462be7428967d720278b9b4ded2347240962b9389f2f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zKiljturGVdm6PLBEOEPJFtUPFYaI+pdxmBfE9Ny2plXXA1zCjnr3GAKZK+XOZcZrruwiOMVXbGYEDkZ5Xf/Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T15:51:06.209246Z","bundle_sha256":"c4be149864489b84f15a7b932a3c7d39efca27a08c6e5c22fbd0be59fe27c424"}}