{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:UAGX3Y7BLS73YA6LSD3G5626SR","short_pith_number":"pith:UAGX3Y7B","canonical_record":{"source":{"id":"2309.03284","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-09-06T18:02:16Z","cross_cats_sorted":["physics.app-ph","physics.optics"],"title_canon_sha256":"4af2bfb0b5a3e06d1dcd5099663409c913ab78f8789120be26127f2755d91caf","abstract_canon_sha256":"28389a9d66a68ef5fae2b6232cdf63bae214fdb01ead75d5db8ded17f4174672"},"schema_version":"1.0"},"canonical_sha256":"a00d7de3e15cbfbc03cb90f66efb5e94412c2fdf14067caf98a08810124a02f4","source":{"kind":"arxiv","id":"2309.03284","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.03284","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"arxiv_version","alias_value":"2309.03284v2","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.03284","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"pith_short_12","alias_value":"UAGX3Y7BLS73","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"pith_short_16","alias_value":"UAGX3Y7BLS73YA6L","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"pith_short_8","alias_value":"UAGX3Y7B","created_at":"2026-07-05T07:16:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:UAGX3Y7BLS73YA6LSD3G5626SR","target":"record","payload":{"canonical_record":{"source":{"id":"2309.03284","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-09-06T18:02:16Z","cross_cats_sorted":["physics.app-ph","physics.optics"],"title_canon_sha256":"4af2bfb0b5a3e06d1dcd5099663409c913ab78f8789120be26127f2755d91caf","abstract_canon_sha256":"28389a9d66a68ef5fae2b6232cdf63bae214fdb01ead75d5db8ded17f4174672"},"schema_version":"1.0"},"canonical_sha256":"a00d7de3e15cbfbc03cb90f66efb5e94412c2fdf14067caf98a08810124a02f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:16:46.142525Z","signature_b64":"8sdL1SCJ6VUt6zjyDJBA29XsglKp2zElqR23271RHm9xU/qHqs3gIcJH5aVO/xI5pgZK3/7jGv7hutFLtKlfCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a00d7de3e15cbfbc03cb90f66efb5e94412c2fdf14067caf98a08810124a02f4","last_reissued_at":"2026-07-05T07:16:46.142053Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:16:46.142053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2309.03284","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":"2026-07-05T07:16:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vf76JcykEZe7M7YleMc+w3nlc5EPWIUrQTok35fZhKbufRJxZMp4ZktHKguVZOuCTvz191k9yNE5WZumgodBAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T09:49:24.470546Z"},"content_sha256":"1d7ea8dd52468069343c2b9364d0b0dd41fc2fb45835e24dca5be4effe0e41f1","schema_version":"1.0","event_id":"sha256:1d7ea8dd52468069343c2b9364d0b0dd41fc2fb45835e24dca5be4effe0e41f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:UAGX3Y7BLS73YA6LSD3G5626SR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photonic link from single flux quantum circuits to room temperature","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.app-ph","physics.optics"],"primary_cat":"quant-ph","authors_text":"Hong X. Tang, Jiacheng Xie, Mohan Shen, Risheng Cheng, Sihao Wang, Wei Fu, Yiyu Zhou, Yuntao Xu","submitted_at":"2023-09-06T18:02:16Z","abstract_excerpt":"Broadband, energy-efficient signal transfer between cryogenic and room-temperature environment has been a major bottleneck for superconducting quantum and classical logic circuits. Photonic links promise to overcome this challenge by offering simultaneous high bandwidth and low thermal load. However, the development of cryogenic electro-optic modulators -- a key component for photonic readout of electrical signals -- has been stifled by the stringent requirements of superconducting circuits. Rapid single flux quantum circuits (RSFQ), for example, operate with a tiny signal amplitude of only a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.03284","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/2309.03284/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":"2026-07-05T07:16:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"37GWppYyAoViQ2X2UPl3B54GQsQHAPMI7eTgE66hR62OmWfz6LbspB2PQ6C7VnbONbUivPUH+0lHbku3GJQjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T09:49:24.470925Z"},"content_sha256":"ada17e4c01cc68e4922d6e37af52c82c7c017c2b55a984f676282186738bff7f","schema_version":"1.0","event_id":"sha256:ada17e4c01cc68e4922d6e37af52c82c7c017c2b55a984f676282186738bff7f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UAGX3Y7BLS73YA6LSD3G5626SR/bundle.json","state_url":"https://pith.science/pith/UAGX3Y7BLS73YA6LSD3G5626SR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UAGX3Y7BLS73YA6LSD3G5626SR/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":"2026-07-13T09:49:24Z","links":{"resolver":"https://pith.science/pith/UAGX3Y7BLS73YA6LSD3G5626SR","bundle":"https://pith.science/pith/UAGX3Y7BLS73YA6LSD3G5626SR/bundle.json","state":"https://pith.science/pith/UAGX3Y7BLS73YA6LSD3G5626SR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UAGX3Y7BLS73YA6LSD3G5626SR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UAGX3Y7BLS73YA6LSD3G5626SR","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":"28389a9d66a68ef5fae2b6232cdf63bae214fdb01ead75d5db8ded17f4174672","cross_cats_sorted":["physics.app-ph","physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-09-06T18:02:16Z","title_canon_sha256":"4af2bfb0b5a3e06d1dcd5099663409c913ab78f8789120be26127f2755d91caf"},"schema_version":"1.0","source":{"id":"2309.03284","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.03284","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"arxiv_version","alias_value":"2309.03284v2","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.03284","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"pith_short_12","alias_value":"UAGX3Y7BLS73","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"pith_short_16","alias_value":"UAGX3Y7BLS73YA6L","created_at":"2026-07-05T07:16:46Z"},{"alias_kind":"pith_short_8","alias_value":"UAGX3Y7B","created_at":"2026-07-05T07:16:46Z"}],"graph_snapshots":[{"event_id":"sha256:ada17e4c01cc68e4922d6e37af52c82c7c017c2b55a984f676282186738bff7f","target":"graph","created_at":"2026-07-05T07:16:46Z","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/2309.03284/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Broadband, energy-efficient signal transfer between cryogenic and room-temperature environment has been a major bottleneck for superconducting quantum and classical logic circuits. Photonic links promise to overcome this challenge by offering simultaneous high bandwidth and low thermal load. However, the development of cryogenic electro-optic modulators -- a key component for photonic readout of electrical signals -- has been stifled by the stringent requirements of superconducting circuits. Rapid single flux quantum circuits (RSFQ), for example, operate with a tiny signal amplitude of only a ","authors_text":"Hong X. Tang, Jiacheng Xie, Mohan Shen, Risheng Cheng, Sihao Wang, Wei Fu, Yiyu Zhou, Yuntao Xu","cross_cats":["physics.app-ph","physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-09-06T18:02:16Z","title":"Photonic link from single flux quantum circuits to room temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.03284","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":"sha256:1d7ea8dd52468069343c2b9364d0b0dd41fc2fb45835e24dca5be4effe0e41f1","target":"record","created_at":"2026-07-05T07:16:46Z","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":"28389a9d66a68ef5fae2b6232cdf63bae214fdb01ead75d5db8ded17f4174672","cross_cats_sorted":["physics.app-ph","physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2023-09-06T18:02:16Z","title_canon_sha256":"4af2bfb0b5a3e06d1dcd5099663409c913ab78f8789120be26127f2755d91caf"},"schema_version":"1.0","source":{"id":"2309.03284","kind":"arxiv","version":2}},"canonical_sha256":"a00d7de3e15cbfbc03cb90f66efb5e94412c2fdf14067caf98a08810124a02f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a00d7de3e15cbfbc03cb90f66efb5e94412c2fdf14067caf98a08810124a02f4","first_computed_at":"2026-07-05T07:16:46.142053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:16:46.142053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8sdL1SCJ6VUt6zjyDJBA29XsglKp2zElqR23271RHm9xU/qHqs3gIcJH5aVO/xI5pgZK3/7jGv7hutFLtKlfCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:16:46.142525Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.03284","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d7ea8dd52468069343c2b9364d0b0dd41fc2fb45835e24dca5be4effe0e41f1","sha256:ada17e4c01cc68e4922d6e37af52c82c7c017c2b55a984f676282186738bff7f"],"state_sha256":"136abf66452528ae90ae7bdeda59ae25754512cbd8d1feccf6463ebf63c60f03"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ja876H3EljuFOrGnsWtm+MHgpB7fszF6FP5QRXZq5vS+xzN+FEwdwvqPajEDItDkeNfQNmnx/zDJH1R88nxYAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-13T09:49:24.473009Z","bundle_sha256":"b5d9a99944c8824f5e49ca4853d76f651a699e78fcac61473f28f5ad9d1a6878"}}