{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:M5RZCJR4EY7O3U3E2C24E5ZDYV","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":"990f6642bfd3e176f17fa9e978889013d7a72ceb8612f92eab8efc6ba09475f9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-21T02:43:36Z","title_canon_sha256":"3e42890b5c437498236b52f17bf54b8eab55f31c112962d9c0c4dc47e92c2515"},"schema_version":"1.0","source":{"id":"2104.10321","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.10321","created_at":"2026-07-05T03:16:51Z"},{"alias_kind":"arxiv_version","alias_value":"2104.10321v2","created_at":"2026-07-05T03:16:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.10321","created_at":"2026-07-05T03:16:51Z"},{"alias_kind":"pith_short_12","alias_value":"M5RZCJR4EY7O","created_at":"2026-07-05T03:16:51Z"},{"alias_kind":"pith_short_16","alias_value":"M5RZCJR4EY7O3U3E","created_at":"2026-07-05T03:16:51Z"},{"alias_kind":"pith_short_8","alias_value":"M5RZCJR4","created_at":"2026-07-05T03:16:51Z"}],"graph_snapshots":[{"event_id":"sha256:2e1e8bc48ffa9bb79e9ab2379833748d973dcdab469ef6463e5b07354d5a2d55","target":"graph","created_at":"2026-07-05T03:16:51Z","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/2104.10321/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum secret sharing (QSS) is an essential primitive for the future quantum internet, which promises secure multiparty communication. However, developing a large-scale QSS network is a huge challenge due to the channel loss and the requirement of multiphoton interference or high-fidelity multipartite entanglement distribution. Here, we propose a three-user QSS protocol without monitoring signal disturbance, which is capable of ensuring the unconditional security. The final key rate of our protocol can be demonstrated to break the Pirandola-Laurenza-Ottaviani-Banchi bound of quantum channel a","authors_text":"Hua-Lei Yin, Jie Gu, Wen-Bo Liu, Yao Fu, Yuan-Mei Xie, Zeng-Bing Chen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-21T02:43:36Z","title":"Secure Quantum Secret Sharing without Signal Disturbance Monitoring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.10321","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:f718008070e1a64fec42d488c5ad842fafd6873af03f7b0fa9acb4cc3e28eded","target":"record","created_at":"2026-07-05T03:16:51Z","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":"990f6642bfd3e176f17fa9e978889013d7a72ceb8612f92eab8efc6ba09475f9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-04-21T02:43:36Z","title_canon_sha256":"3e42890b5c437498236b52f17bf54b8eab55f31c112962d9c0c4dc47e92c2515"},"schema_version":"1.0","source":{"id":"2104.10321","kind":"arxiv","version":2}},"canonical_sha256":"676391263c263eedd364d0b5c27723c55c312f17f1c8a926fef620099f758cee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"676391263c263eedd364d0b5c27723c55c312f17f1c8a926fef620099f758cee","first_computed_at":"2026-07-05T03:16:51.751987Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:16:51.751987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zPHG+aUORFFua0gNr0+0EdFF1HSKd+TL6dQbreIlRMgUfOTFuL09I1oKLubwF9I9ezvDcpeM9Cc+hCV7UZ8EBw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:16:51.752429Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.10321","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f718008070e1a64fec42d488c5ad842fafd6873af03f7b0fa9acb4cc3e28eded","sha256:2e1e8bc48ffa9bb79e9ab2379833748d973dcdab469ef6463e5b07354d5a2d55"],"state_sha256":"b2d674d366dc67e47aa8172960a4c380b5fb1b7af5d9840f9c17cdf5986d142c"}