{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XHZUQVU45PB2EXKBV53OA53UDS","short_pith_number":"pith:XHZUQVU4","canonical_record":{"source":{"id":"1811.12306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-11-29T17:07:15Z","cross_cats_sorted":["cond-mat.supr-con","physics.app-ph"],"title_canon_sha256":"66a32b1663b5bced8466c2d07f08abd71de4df66e689857f02fe57dcb665a71b","abstract_canon_sha256":"2200f845ea5d9ef7c4b26dad9c4622817595f41dd08d8ebcbf4961cb24fed21e"},"schema_version":"1.0"},"canonical_sha256":"b9f348569cebc3a25d41af76e077741cb781a1766967b841dc39be3f4f733e1e","source":{"kind":"arxiv","id":"1811.12306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.12306","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"arxiv_version","alias_value":"1811.12306v1","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.12306","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"pith_short_12","alias_value":"XHZUQVU45PB2","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"pith_short_16","alias_value":"XHZUQVU45PB2EXKB","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"pith_short_8","alias_value":"XHZUQVU4","created_at":"2026-07-05T01:40:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XHZUQVU45PB2EXKBV53OA53UDS","target":"record","payload":{"canonical_record":{"source":{"id":"1811.12306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-11-29T17:07:15Z","cross_cats_sorted":["cond-mat.supr-con","physics.app-ph"],"title_canon_sha256":"66a32b1663b5bced8466c2d07f08abd71de4df66e689857f02fe57dcb665a71b","abstract_canon_sha256":"2200f845ea5d9ef7c4b26dad9c4622817595f41dd08d8ebcbf4961cb24fed21e"},"schema_version":"1.0"},"canonical_sha256":"b9f348569cebc3a25d41af76e077741cb781a1766967b841dc39be3f4f733e1e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:40:19.400761Z","signature_b64":"fv+o9V9mt5aRShjB4CHB0bGVIBlOuq6N8dB+eIMvFoxoywDq/vkNli1tyigrTOT5cg0Wxyf4pjPl5VCQC5VTDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9f348569cebc3a25d41af76e077741cb781a1766967b841dc39be3f4f733e1e","last_reissued_at":"2026-07-05T01:40:19.400301Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:40:19.400301Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.12306","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":"2026-07-05T01:40:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A2O91XhTyELSzJQogKWzojzRm2Ss2lnFSpwgEnD5WZknvPGvo4roXU+1MWtJDdtE9lV3TP7w9iTqEA/qSELAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T19:45:45.372195Z"},"content_sha256":"b05cba440169a5af4515ee5be0ba8cba9cb4bd5f1d22184f39dda95e7e244dc9","schema_version":"1.0","event_id":"sha256:b05cba440169a5af4515ee5be0ba8cba9cb4bd5f1d22184f39dda95e7e244dc9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XHZUQVU45PB2EXKBV53OA53UDS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Amplitude-Multiplexed readout of single photon detectors based on superconducting nanowires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con","physics.app-ph"],"primary_cat":"quant-ph","authors_text":"Alberto Politi, Alessandro Gaggero, Fabio Chiarello, Francesco Martini, Francesco Mattioli, Robert Cernansky, Roberto Leoni","submitted_at":"2018-11-29T17:07:15Z","abstract_excerpt":"The realization of large-scale photonic circuit for quantum optics experiments at telecom wavelengths requires an increasing number of integrated detectors. Superconductive nanowire single photon detectors (SNSPDs) can be easily integrated on chip and they can efficiently detect the light propagating inside waveguides. The thermal budget of cryostats poses a limit on the maximum number of elements that can be integrated on the same chip due to the thermal impact of the readout electronics. In this paper, we propose and implement a novel scheme able for an efficient reading of several SNSPDs wi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.12306","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/1811.12306/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":"2026-07-05T01:40:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LwOHEBsoZJmygL5NhhsMQsADSV4Pk6jb1c1b3DVwrQHVXWemogjL1GGedEQQAPBc1wskjyqMY309SBcNlnnvDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T19:45:45.372743Z"},"content_sha256":"3e18ef0ea4f954ec7254ca155398033892b83756bff51f7a8a194a5f694ead40","schema_version":"1.0","event_id":"sha256:3e18ef0ea4f954ec7254ca155398033892b83756bff51f7a8a194a5f694ead40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHZUQVU45PB2EXKBV53OA53UDS/bundle.json","state_url":"https://pith.science/pith/XHZUQVU45PB2EXKBV53OA53UDS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHZUQVU45PB2EXKBV53OA53UDS/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":"2026-08-05T19:45:45Z","links":{"resolver":"https://pith.science/pith/XHZUQVU45PB2EXKBV53OA53UDS","bundle":"https://pith.science/pith/XHZUQVU45PB2EXKBV53OA53UDS/bundle.json","state":"https://pith.science/pith/XHZUQVU45PB2EXKBV53OA53UDS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHZUQVU45PB2EXKBV53OA53UDS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XHZUQVU45PB2EXKBV53OA53UDS","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":"2200f845ea5d9ef7c4b26dad9c4622817595f41dd08d8ebcbf4961cb24fed21e","cross_cats_sorted":["cond-mat.supr-con","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-11-29T17:07:15Z","title_canon_sha256":"66a32b1663b5bced8466c2d07f08abd71de4df66e689857f02fe57dcb665a71b"},"schema_version":"1.0","source":{"id":"1811.12306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.12306","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"arxiv_version","alias_value":"1811.12306v1","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.12306","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"pith_short_12","alias_value":"XHZUQVU45PB2","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"pith_short_16","alias_value":"XHZUQVU45PB2EXKB","created_at":"2026-07-05T01:40:19Z"},{"alias_kind":"pith_short_8","alias_value":"XHZUQVU4","created_at":"2026-07-05T01:40:19Z"}],"graph_snapshots":[{"event_id":"sha256:3e18ef0ea4f954ec7254ca155398033892b83756bff51f7a8a194a5f694ead40","target":"graph","created_at":"2026-07-05T01:40:19Z","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/1811.12306/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The realization of large-scale photonic circuit for quantum optics experiments at telecom wavelengths requires an increasing number of integrated detectors. Superconductive nanowire single photon detectors (SNSPDs) can be easily integrated on chip and they can efficiently detect the light propagating inside waveguides. The thermal budget of cryostats poses a limit on the maximum number of elements that can be integrated on the same chip due to the thermal impact of the readout electronics. In this paper, we propose and implement a novel scheme able for an efficient reading of several SNSPDs wi","authors_text":"Alberto Politi, Alessandro Gaggero, Fabio Chiarello, Francesco Martini, Francesco Mattioli, Robert Cernansky, Roberto Leoni","cross_cats":["cond-mat.supr-con","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-11-29T17:07:15Z","title":"Amplitude-Multiplexed readout of single photon detectors based on superconducting nanowires"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.12306","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:b05cba440169a5af4515ee5be0ba8cba9cb4bd5f1d22184f39dda95e7e244dc9","target":"record","created_at":"2026-07-05T01:40:19Z","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":"2200f845ea5d9ef7c4b26dad9c4622817595f41dd08d8ebcbf4961cb24fed21e","cross_cats_sorted":["cond-mat.supr-con","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-11-29T17:07:15Z","title_canon_sha256":"66a32b1663b5bced8466c2d07f08abd71de4df66e689857f02fe57dcb665a71b"},"schema_version":"1.0","source":{"id":"1811.12306","kind":"arxiv","version":1}},"canonical_sha256":"b9f348569cebc3a25d41af76e077741cb781a1766967b841dc39be3f4f733e1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9f348569cebc3a25d41af76e077741cb781a1766967b841dc39be3f4f733e1e","first_computed_at":"2026-07-05T01:40:19.400301Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:40:19.400301Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fv+o9V9mt5aRShjB4CHB0bGVIBlOuq6N8dB+eIMvFoxoywDq/vkNli1tyigrTOT5cg0Wxyf4pjPl5VCQC5VTDw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:40:19.400761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.12306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b05cba440169a5af4515ee5be0ba8cba9cb4bd5f1d22184f39dda95e7e244dc9","sha256:3e18ef0ea4f954ec7254ca155398033892b83756bff51f7a8a194a5f694ead40"],"state_sha256":"14d6b01020f45a2dfaa1e7bbd9d2030b8211739e6d221a045afe3e16beb6cb75"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AXKir83BIcDm5Y0KrZeMM1t71aURg7Hu3fDQUrTw3IBtZlJUKjh8UJxoqbYyjg4jzDPN5lhSybBkTrqumwxbCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T19:45:45.379901Z","bundle_sha256":"021bfc012905c6241e98346b462d2ffaa1059cdfb404e9e0da5658c5d08ddb86"}}