{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:PLQU5MTIKEYXK7CSHTZJ6PQ5BS","short_pith_number":"pith:PLQU5MTI","schema_version":"1.0","canonical_sha256":"7ae14eb2685131757c523cf29f3e1d0cbda2bc8ec1a6deb277296455f64f8525","source":{"kind":"arxiv","id":"1901.09478","version":1},"attestation_state":"computed","paper":{"title":"Efficient High-dimensional Quantum Key Distribution with Hybrid Encoding","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR"],"primary_cat":"quant-ph","authors_text":"Hee Su Park, Seung-Woo Lee, Wonmin Son, Yonggi Jo","submitted_at":"2019-01-28T01:13:16Z","abstract_excerpt":"We propose a schematic setup of quantum key distribution (QKD) with an improved secret key rate based on high-dimensional quantum states. Two degrees-of-freedom of a single photon, orbital angular momentum modes, and multi-path modes, are used to encode secret key information. Its practical implementation consists of optical elements that are within the reach of current technologies such as a multiport interferometer. We show that the proposed feasible protocol has improved the secret key rate with much sophistication compared to the previous 2-dimensional protocol known as the detector-device"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1901.09478","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-01-28T01:13:16Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"b4e5283e6e6a4eb109523a87f50192a165cdad06606594ff73413468718ca9f6","abstract_canon_sha256":"b307539c244d6cd85733a095816744a3ebb7ed4d6ace189dab2d37f7015fe1f8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:24.658443Z","signature_b64":"1oYrzbGOhl3YzdPO1Vv+GVSwTJ/++hse5HO+akK+jqVmZnRQMJwLACw0fQhjRFJVpRlyZhWbBq//3xJeLNlUCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ae14eb2685131757c523cf29f3e1d0cbda2bc8ec1a6deb277296455f64f8525","last_reissued_at":"2026-05-17T23:55:24.658003Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:24.658003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Efficient High-dimensional Quantum Key Distribution with Hybrid Encoding","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR"],"primary_cat":"quant-ph","authors_text":"Hee Su Park, Seung-Woo Lee, Wonmin Son, Yonggi Jo","submitted_at":"2019-01-28T01:13:16Z","abstract_excerpt":"We propose a schematic setup of quantum key distribution (QKD) with an improved secret key rate based on high-dimensional quantum states. Two degrees-of-freedom of a single photon, orbital angular momentum modes, and multi-path modes, are used to encode secret key information. Its practical implementation consists of optical elements that are within the reach of current technologies such as a multiport interferometer. We show that the proposed feasible protocol has improved the secret key rate with much sophistication compared to the previous 2-dimensional protocol known as the detector-device"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09478","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1901.09478","created_at":"2026-05-17T23:55:24.658069+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.09478v1","created_at":"2026-05-17T23:55:24.658069+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09478","created_at":"2026-05-17T23:55:24.658069+00:00"},{"alias_kind":"pith_short_12","alias_value":"PLQU5MTIKEYX","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"PLQU5MTIKEYXK7CS","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"PLQU5MTI","created_at":"2026-05-18T12:33:24.271573+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS","json":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS.json","graph_json":"https://pith.science/api/pith-number/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/graph.json","events_json":"https://pith.science/api/pith-number/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/events.json","paper":"https://pith.science/paper/PLQU5MTI"},"agent_actions":{"view_html":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS","download_json":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS.json","view_paper":"https://pith.science/paper/PLQU5MTI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.09478&json=true","fetch_graph":"https://pith.science/api/pith-number/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/graph.json","fetch_events":"https://pith.science/api/pith-number/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/action/storage_attestation","attest_author":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/action/author_attestation","sign_citation":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/action/citation_signature","submit_replication":"https://pith.science/pith/PLQU5MTIKEYXK7CSHTZJ6PQ5BS/action/replication_record"}},"created_at":"2026-05-17T23:55:24.658069+00:00","updated_at":"2026-05-17T23:55:24.658069+00:00"}