{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:S2XO2PPYPGZNCGVRM4PIKDJDR4","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":"f95fd102e1165b12aed0c7c713cd7f07e508cddfe480a4c5c6e799c55fb03633","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T10:04:31Z","title_canon_sha256":"a7d754dd71f9a29d3d4f8389f571dbbb2b24f6424b7876c82d0a17cb02623367"},"schema_version":"1.0","source":{"id":"2407.07513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.07513","created_at":"2026-07-05T08:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"2407.07513v1","created_at":"2026-07-05T08:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.07513","created_at":"2026-07-05T08:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"S2XO2PPYPGZN","created_at":"2026-07-05T08:42:13Z"},{"alias_kind":"pith_short_16","alias_value":"S2XO2PPYPGZNCGVR","created_at":"2026-07-05T08:42:13Z"},{"alias_kind":"pith_short_8","alias_value":"S2XO2PPY","created_at":"2026-07-05T08:42:13Z"}],"graph_snapshots":[{"event_id":"sha256:a7bec16d879f527f988d47a7ed86d5356fdd0bbb0f9a73a0e1f2ac9dff71d7c6","target":"graph","created_at":"2026-07-05T08:42:13Z","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/2407.07513/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The development of quantum networks is paramount towards practical and secure communications. Quantum digital signatures (QDS) offer an information-theoretically secure solution for ensuring data integrity, authenticity, and non-repudiation, rapidly growing from proof-of-concept to robust demonstrations. However, previous QDS systems relied on expensive and bulky optical equipment, limiting large-scale deployment and reconfigurable networking construction. Here, we introduce and verify a chip-based QDS network, placing the complicated and expensive measurement devices in the central relay whil","authors_text":"Bing-Hong Li, Feng Xie, Hua-Lei Yin, Kejin Wei, Xiao-Yu Cao, Xin Hua, Xi Xiao, Yongqiang Du, Zhengeng Zhao, Zhenrong Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T10:04:31Z","title":"High-rate quantum digital signatures network with integrated silicon photonics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.07513","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":"sha256:7834088ac7cb1c42c282771569baaf8df96a1cd111b4873fd7ec7609cab57a05","target":"record","created_at":"2026-07-05T08:42:13Z","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":"f95fd102e1165b12aed0c7c713cd7f07e508cddfe480a4c5c6e799c55fb03633","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2024-07-10T10:04:31Z","title_canon_sha256":"a7d754dd71f9a29d3d4f8389f571dbbb2b24f6424b7876c82d0a17cb02623367"},"schema_version":"1.0","source":{"id":"2407.07513","kind":"arxiv","version":1}},"canonical_sha256":"96aeed3df879b2d11ab1671e850d238f0bb5dade8d2be5e816db20909fd7ea03","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96aeed3df879b2d11ab1671e850d238f0bb5dade8d2be5e816db20909fd7ea03","first_computed_at":"2026-07-05T08:42:13.468674Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:42:13.468674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iFfB8dt3MgEhujN/6Zm9Q84lPNIzVtfJxk/CV8Do/PIMTWt1PQVrWNEHaKAK6/9hqIkbCEPQLmyCYKgNJMuEAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:42:13.469154Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.07513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7834088ac7cb1c42c282771569baaf8df96a1cd111b4873fd7ec7609cab57a05","sha256:a7bec16d879f527f988d47a7ed86d5356fdd0bbb0f9a73a0e1f2ac9dff71d7c6"],"state_sha256":"b74e4097a273da40d221c73953d7f5a54f1fdaf7a9971017e70bf2c981ba4aff"}