{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZEPLGPQXRYUA6ZD252R2ZPE2DD","short_pith_number":"pith:ZEPLGPQX","canonical_record":{"source":{"id":"1408.3700","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-16T04:20:00Z","cross_cats_sorted":[],"title_canon_sha256":"60b0b7fe02860712722015bd04d7c3db7c2d90b2ed7d59f19e2320d3af07e7a7","abstract_canon_sha256":"5d5a89f7e6b96e91dcd4a82da2e1eba4450a4d49971b7d815ab2f51a2d8a7dd5"},"schema_version":"1.0"},"canonical_sha256":"c91eb33e178e280f647aeea3acbc9a18f9ddbbe328f346b61faecb597129e96a","source":{"kind":"arxiv","id":"1408.3700","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3700","created_at":"2026-05-18T00:50:02Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3700v1","created_at":"2026-05-18T00:50:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3700","created_at":"2026-05-18T00:50:02Z"},{"alias_kind":"pith_short_12","alias_value":"ZEPLGPQXRYUA","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZEPLGPQXRYUA6ZD2","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZEPLGPQX","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZEPLGPQXRYUA6ZD252R2ZPE2DD","target":"record","payload":{"canonical_record":{"source":{"id":"1408.3700","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-16T04:20:00Z","cross_cats_sorted":[],"title_canon_sha256":"60b0b7fe02860712722015bd04d7c3db7c2d90b2ed7d59f19e2320d3af07e7a7","abstract_canon_sha256":"5d5a89f7e6b96e91dcd4a82da2e1eba4450a4d49971b7d815ab2f51a2d8a7dd5"},"schema_version":"1.0"},"canonical_sha256":"c91eb33e178e280f647aeea3acbc9a18f9ddbbe328f346b61faecb597129e96a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:02.226376Z","signature_b64":"xgknruohT/IIdiEx0vxMl9fBy0TPY5pWzS68bjUm7e0R52FuUoDPuYWyFWRKkzQ25mzteiywOhi0SpXzqo1bCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c91eb33e178e280f647aeea3acbc9a18f9ddbbe328f346b61faecb597129e96a","last_reissued_at":"2026-05-18T00:50:02.225795Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:02.225795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.3700","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":"2026-05-18T00:50:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RAukHyAjoUmTvXT+kaOOWWK+ruVrVpS+f0fA19Io5B9n3VD/CjwNTA5RByic5jf2TrllBXKT+D9mZnX2jeEBAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:58:41.809534Z"},"content_sha256":"d629e6004c8bafc5233e7fce446d747b3513518e14c59f798ffa23907a09f4a2","schema_version":"1.0","event_id":"sha256:d629e6004c8bafc5233e7fce446d747b3513518e14c59f798ffa23907a09f4a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZEPLGPQXRYUA6ZD252R2ZPE2DD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical responses of the switching currents in Al and Nb Josephson junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Beihong Zhang, Chunhai Cao, Jiquan Zhai, Lianfu Wei, Pinjia Zhou, Qiang Wei, Weiwei Xu, Yiwen Wang","submitted_at":"2014-08-16T04:20:00Z","abstract_excerpt":"We experimentally demonstrated the optical responses of the switching currents in two types of Josephson tunnel junctions: Al/AlOx/Al and Nb/AlOx/Nb. The radiation-induced switching current shifts were measured at ultra-low bath temperature (T~16 mK). It is observed that the Al-junction has a more sensitive optical response than the Nb-junction, which is as expected since Al electrode has a smaller superconducting gap energy. The minimum detectable radiation powers with the present Al-junction and Nb-junction are 8 pW (corresponding to 8*10^5 incoming photons in one measurement cycle) and 2 nW"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3700","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":""},"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":"2026-05-18T00:50:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HMHRvBcaRHPI5UormfRctr3Tq9H1FCi7/ZL0CJZ4tCVFHSlNilP1G6piySao4aj9Kswws3RiedkJWU48+HnmBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:58:41.809882Z"},"content_sha256":"3fa8a6e35130c2f1c17544fede16dcb23b8e4f0f5fddbe62d13cde6fe3ed6514","schema_version":"1.0","event_id":"sha256:3fa8a6e35130c2f1c17544fede16dcb23b8e4f0f5fddbe62d13cde6fe3ed6514"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD/bundle.json","state_url":"https://pith.science/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD/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":"2026-06-03T00:58:41Z","links":{"resolver":"https://pith.science/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD","bundle":"https://pith.science/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD/bundle.json","state":"https://pith.science/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZEPLGPQXRYUA6ZD252R2ZPE2DD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZEPLGPQXRYUA6ZD252R2ZPE2DD","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":"5d5a89f7e6b96e91dcd4a82da2e1eba4450a4d49971b7d815ab2f51a2d8a7dd5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-16T04:20:00Z","title_canon_sha256":"60b0b7fe02860712722015bd04d7c3db7c2d90b2ed7d59f19e2320d3af07e7a7"},"schema_version":"1.0","source":{"id":"1408.3700","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3700","created_at":"2026-05-18T00:50:02Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3700v1","created_at":"2026-05-18T00:50:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3700","created_at":"2026-05-18T00:50:02Z"},{"alias_kind":"pith_short_12","alias_value":"ZEPLGPQXRYUA","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZEPLGPQXRYUA6ZD2","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZEPLGPQX","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:3fa8a6e35130c2f1c17544fede16dcb23b8e4f0f5fddbe62d13cde6fe3ed6514","target":"graph","created_at":"2026-05-18T00:50:02Z","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 experimentally demonstrated the optical responses of the switching currents in two types of Josephson tunnel junctions: Al/AlOx/Al and Nb/AlOx/Nb. The radiation-induced switching current shifts were measured at ultra-low bath temperature (T~16 mK). It is observed that the Al-junction has a more sensitive optical response than the Nb-junction, which is as expected since Al electrode has a smaller superconducting gap energy. The minimum detectable radiation powers with the present Al-junction and Nb-junction are 8 pW (corresponding to 8*10^5 incoming photons in one measurement cycle) and 2 nW","authors_text":"Beihong Zhang, Chunhai Cao, Jiquan Zhai, Lianfu Wei, Pinjia Zhou, Qiang Wei, Weiwei Xu, Yiwen Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-16T04:20:00Z","title":"Optical responses of the switching currents in Al and Nb Josephson junctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3700","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:d629e6004c8bafc5233e7fce446d747b3513518e14c59f798ffa23907a09f4a2","target":"record","created_at":"2026-05-18T00:50:02Z","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":"5d5a89f7e6b96e91dcd4a82da2e1eba4450a4d49971b7d815ab2f51a2d8a7dd5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-08-16T04:20:00Z","title_canon_sha256":"60b0b7fe02860712722015bd04d7c3db7c2d90b2ed7d59f19e2320d3af07e7a7"},"schema_version":"1.0","source":{"id":"1408.3700","kind":"arxiv","version":1}},"canonical_sha256":"c91eb33e178e280f647aeea3acbc9a18f9ddbbe328f346b61faecb597129e96a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c91eb33e178e280f647aeea3acbc9a18f9ddbbe328f346b61faecb597129e96a","first_computed_at":"2026-05-18T00:50:02.225795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:02.225795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xgknruohT/IIdiEx0vxMl9fBy0TPY5pWzS68bjUm7e0R52FuUoDPuYWyFWRKkzQ25mzteiywOhi0SpXzqo1bCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:02.226376Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.3700","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d629e6004c8bafc5233e7fce446d747b3513518e14c59f798ffa23907a09f4a2","sha256:3fa8a6e35130c2f1c17544fede16dcb23b8e4f0f5fddbe62d13cde6fe3ed6514"],"state_sha256":"ece11a16d3d1dda1599e5d746ad0fd44b081c9c24e592571f1aeae4219c3f066"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D4NTvKQmG/IpozRuA58iwf09xI5ks8V8QX0PfPImF3QBsEkUyzrJseEPAgDyGLKaI96v+Ws7NwNaF3Os661kBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:58:41.812173Z","bundle_sha256":"eb9bcc1bb6a22f758c2a08180196e17dcbee0de35e518d2a310bef77813976dd"}}