{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:YNN6BE3LYFTLHPZSBMSN37IO6T","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":"0966aca03ab0b0b6fb6dbd0770020f6371ecf6498494cd4e3986ce0ca1940ad4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-28T13:25:57Z","title_canon_sha256":"6782a778a15bcd94f695dc6a06c57b47d9cfbfb150030fd597906376336406fe"},"schema_version":"1.0","source":{"id":"0907.4912","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.4912","created_at":"2026-05-18T02:12:47Z"},{"alias_kind":"arxiv_version","alias_value":"0907.4912v2","created_at":"2026-05-18T02:12:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.4912","created_at":"2026-05-18T02:12:47Z"},{"alias_kind":"pith_short_12","alias_value":"YNN6BE3LYFTL","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"YNN6BE3LYFTLHPZS","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"YNN6BE3L","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:7b3614c57cdbf5df9e8a63f7c6183c6ab7ad7547fa14ab2cfa794d7b37d97cdd","target":"graph","created_at":"2026-05-18T02:12:47Z","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":"In this paper, we develop a quantum key distribution protocol based on the Greenberger-Horne-Zeilinger states (GHZs). The particles are exchanged among the users in blocks through two steps. In this protocol, for three-particle GHZs three keys can be simultaneously generated. The advantage of this is that the users can select the most suitable key for communication. The protocol can be generalized to $N$ users to provide $N$ keys. The protocol has two levels for checking the eavesdroppers. Moreover, we discuss the security of the protocol against different attacks.","authors_text":"Faisal A. A. El-Orany, Iskandar Bahari, Mustafa Afanddi Mat Nor, Norziana Jamil, Wahiddin M. R. B.","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-28T13:25:57Z","title":"Quantum key distribution in terms of the Greenberger-Horne-Zeilinger state: multi-key generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.4912","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":"sha256:62c9d00e0316ae155092548aa63b41805af38c2a5313ce657f2a5953f45d524e","target":"record","created_at":"2026-05-18T02:12:47Z","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":"0966aca03ab0b0b6fb6dbd0770020f6371ecf6498494cd4e3986ce0ca1940ad4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-28T13:25:57Z","title_canon_sha256":"6782a778a15bcd94f695dc6a06c57b47d9cfbfb150030fd597906376336406fe"},"schema_version":"1.0","source":{"id":"0907.4912","kind":"arxiv","version":2}},"canonical_sha256":"c35be0936bc166b3bf320b24ddfd0ef4d364a498e32d5d87537f872a8745ca5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c35be0936bc166b3bf320b24ddfd0ef4d364a498e32d5d87537f872a8745ca5e","first_computed_at":"2026-05-18T02:12:47.042336Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:47.042336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/ubvErOVrdxcez4+7fwLu3mgCXs1APQefCnAVoivKikBPXk+YaSTDqAnWL6NQut6bRbOPDIp9BHG5LeWL/jXAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:47.043004Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.4912","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:62c9d00e0316ae155092548aa63b41805af38c2a5313ce657f2a5953f45d524e","sha256:7b3614c57cdbf5df9e8a63f7c6183c6ab7ad7547fa14ab2cfa794d7b37d97cdd"],"state_sha256":"22ec1d256db8bd07223f3c757c43b3312185e8674b162cb4ed6f239e88ef78b0"}