{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:X446R7QEVRIZENA5PGQA3LGJJ7","short_pith_number":"pith:X446R7QE","schema_version":"1.0","canonical_sha256":"bf39e8fe04ac5192341d79a00dacc94fc7a416108fef3f4ea78133e5dabbba72","source":{"kind":"arxiv","id":"1110.4867","version":1},"attestation_state":"computed","paper":{"title":"Dense Wavelength Division Multiplexed Quantum Key Distribution Using Entangled Photons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Dirk Englund, F.N.C. Wong, Jacob Mower, Jeff H. Shapiro","submitted_at":"2011-10-21T18:50:39Z","abstract_excerpt":"Quantum key distribution (QKD) enables two parties to establish a secret key over a potentially hostile channel by exchanging photonic quantum states, relying on the fact that it is impossible for an eavesdropper to tap the quantum channel without disturbing these photons in a way that can be detected [1]. Here we introduce a large-alphabet QKD protocol that makes optimal use of temporal and spectral correlations of entangled photons, reaching the maximum number of inde- pendent basis states (the Schmidt number) and enabling extremely high information content per photon together with an optima"},"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":"1110.4867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-21T18:50:39Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e98c73b369cca6a13a4ebbe346501ca4f10e3f9aff717b60a0857d24641d2894","abstract_canon_sha256":"0936a4a027077e1bf42e9954aa4f2c0af40fa875a45092fbfc50c2b7790d574c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:10:34.844257Z","signature_b64":"AsTiDrhOUYwXdtpQenPke6O7D9nNAlr24CruwFRb8YjaIQdDgCLFJk2y+hhQ7BVcotbJZxGW7Qj12dK6XPHTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf39e8fe04ac5192341d79a00dacc94fc7a416108fef3f4ea78133e5dabbba72","last_reissued_at":"2026-05-18T04:10:34.843464Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:10:34.843464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dense Wavelength Division Multiplexed Quantum Key Distribution Using Entangled Photons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Dirk Englund, F.N.C. Wong, Jacob Mower, Jeff H. Shapiro","submitted_at":"2011-10-21T18:50:39Z","abstract_excerpt":"Quantum key distribution (QKD) enables two parties to establish a secret key over a potentially hostile channel by exchanging photonic quantum states, relying on the fact that it is impossible for an eavesdropper to tap the quantum channel without disturbing these photons in a way that can be detected [1]. Here we introduce a large-alphabet QKD protocol that makes optimal use of temporal and spectral correlations of entangled photons, reaching the maximum number of inde- pendent basis states (the Schmidt number) and enabling extremely high information content per photon together with an optima"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.4867","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":"1110.4867","created_at":"2026-05-18T04:10:34.843584+00:00"},{"alias_kind":"arxiv_version","alias_value":"1110.4867v1","created_at":"2026-05-18T04:10:34.843584+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.4867","created_at":"2026-05-18T04:10:34.843584+00:00"},{"alias_kind":"pith_short_12","alias_value":"X446R7QEVRIZ","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"X446R7QEVRIZENA5","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"X446R7QE","created_at":"2026-05-18T12:26:44.992195+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1908.01673","citing_title":"Flexible Cloud/User-Centric Entanglement and Photon Pair Distribution with Synthesizable Optical Router","ref_index":15,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7","json":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7.json","graph_json":"https://pith.science/api/pith-number/X446R7QEVRIZENA5PGQA3LGJJ7/graph.json","events_json":"https://pith.science/api/pith-number/X446R7QEVRIZENA5PGQA3LGJJ7/events.json","paper":"https://pith.science/paper/X446R7QE"},"agent_actions":{"view_html":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7","download_json":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7.json","view_paper":"https://pith.science/paper/X446R7QE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1110.4867&json=true","fetch_graph":"https://pith.science/api/pith-number/X446R7QEVRIZENA5PGQA3LGJJ7/graph.json","fetch_events":"https://pith.science/api/pith-number/X446R7QEVRIZENA5PGQA3LGJJ7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7/action/storage_attestation","attest_author":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7/action/author_attestation","sign_citation":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7/action/citation_signature","submit_replication":"https://pith.science/pith/X446R7QEVRIZENA5PGQA3LGJJ7/action/replication_record"}},"created_at":"2026-05-18T04:10:34.843584+00:00","updated_at":"2026-05-18T04:10:34.843584+00:00"}