{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:4JOPJKCILATXOZGYYGCZGQMELC","short_pith_number":"pith:4JOPJKCI","schema_version":"1.0","canonical_sha256":"e25cf4a84858277764d8c18593418458ae2cb5a2df3d40e464408128de3a24f9","source":{"kind":"arxiv","id":"1207.4218","version":1},"attestation_state":"computed","paper":{"title":"Bragg reflection waveguide as a source of wavelength-multiplexed polarization-entangled photon pairs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Ji\\v{r}\\'i Svozil\\'ik, Juan P. Torres, Martin Hendrych","submitted_at":"2012-07-17T21:14:24Z","abstract_excerpt":"We put forward a new highly efficient source of paired photons entangled in polarization with an ultra-large bandwidth. The photons are generated by means of a conveniently designed spontaneous parametric down-conversion process in a semiconductor type-II Bragg reflection waveguide. The proposed scheme aims at being a key element of an integrated source of polarization-entangled photon pairs highly suitable for its use in a multi-user quantum-key-distribution system."},"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":"1207.4218","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-07-17T21:14:24Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"f9244e217bcb6030cc29b9376ec85590a7a310f470c5aa28aa059d97d7149439","abstract_canon_sha256":"bbcac2de4fc9600cc00726f8df0bf61034f6878b2b9996039ffa9941fc240b83"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:17.099416Z","signature_b64":"ZHMRh1yB2Q1n9JPm4I2HLQRRJxplbCKloQ6QU7rzNgCDmlE8OhNpP3yht0Q5R593VR5tKuu3yAcSLdC1i0ljAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e25cf4a84858277764d8c18593418458ae2cb5a2df3d40e464408128de3a24f9","last_reissued_at":"2026-05-18T01:56:17.098788Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:17.098788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bragg reflection waveguide as a source of wavelength-multiplexed polarization-entangled photon pairs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Ji\\v{r}\\'i Svozil\\'ik, Juan P. Torres, Martin Hendrych","submitted_at":"2012-07-17T21:14:24Z","abstract_excerpt":"We put forward a new highly efficient source of paired photons entangled in polarization with an ultra-large bandwidth. The photons are generated by means of a conveniently designed spontaneous parametric down-conversion process in a semiconductor type-II Bragg reflection waveguide. The proposed scheme aims at being a key element of an integrated source of polarization-entangled photon pairs highly suitable for its use in a multi-user quantum-key-distribution system."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.4218","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":"1207.4218","created_at":"2026-05-18T01:56:17.098887+00:00"},{"alias_kind":"arxiv_version","alias_value":"1207.4218v1","created_at":"2026-05-18T01:56:17.098887+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.4218","created_at":"2026-05-18T01:56:17.098887+00:00"},{"alias_kind":"pith_short_12","alias_value":"4JOPJKCILATX","created_at":"2026-05-18T12:26:53.410803+00:00"},{"alias_kind":"pith_short_16","alias_value":"4JOPJKCILATXOZGY","created_at":"2026-05-18T12:26:53.410803+00:00"},{"alias_kind":"pith_short_8","alias_value":"4JOPJKCI","created_at":"2026-05-18T12:26:53.410803+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/4JOPJKCILATXOZGYYGCZGQMELC","json":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC.json","graph_json":"https://pith.science/api/pith-number/4JOPJKCILATXOZGYYGCZGQMELC/graph.json","events_json":"https://pith.science/api/pith-number/4JOPJKCILATXOZGYYGCZGQMELC/events.json","paper":"https://pith.science/paper/4JOPJKCI"},"agent_actions":{"view_html":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC","download_json":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC.json","view_paper":"https://pith.science/paper/4JOPJKCI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1207.4218&json=true","fetch_graph":"https://pith.science/api/pith-number/4JOPJKCILATXOZGYYGCZGQMELC/graph.json","fetch_events":"https://pith.science/api/pith-number/4JOPJKCILATXOZGYYGCZGQMELC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC/action/storage_attestation","attest_author":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC/action/author_attestation","sign_citation":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC/action/citation_signature","submit_replication":"https://pith.science/pith/4JOPJKCILATXOZGYYGCZGQMELC/action/replication_record"}},"created_at":"2026-05-18T01:56:17.098887+00:00","updated_at":"2026-05-18T01:56:17.098887+00:00"}