{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:2MDSDGMBN4NL34OAUXJ5HHDIHW","short_pith_number":"pith:2MDSDGMB","schema_version":"1.0","canonical_sha256":"d3072199816f1abdf1c0a5d3d39c683da92d83a42146c8a2946c14daf1259398","source":{"kind":"arxiv","id":"1504.07760","version":3},"attestation_state":"computed","paper":{"title":"Broadband biphotons in a single spatial mode","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"A. V. Paterova, I. V. Dyakonov, K. G. Katamadze, N. A. Borshchevskaya, S. P. Kulik","submitted_at":"2015-04-29T08:23:31Z","abstract_excerpt":"We demonastrate experimental technique for generating spatially single-mode broadband biphoton field. The method is based on dispersive optical element which precisely tailors the structure of type-I SPDC frequency angular spectrum in order to shift different spectral components to a single angular mode. Spatial mode filtering is realized by coupling biphotons into a single-mode optical fiber."},"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":"1504.07760","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-29T08:23:31Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"3b58a72c328352cf9774d3015b978b748fe7a017d9d3d51c04c58e3bd118dbf8","abstract_canon_sha256":"0febe9d114c8047ebfe0c488232eb4a56e79448d758789ef8d9aef17004c2406"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:10.224284Z","signature_b64":"0pzSXNdwPf1h0sFs/DthPjwzRu+vQ6eY4j/75HQvhYrt1nfUAdemiBE4VKDDuKf/eYgDMbTRCJiltIcGGv1JAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3072199816f1abdf1c0a5d3d39c683da92d83a42146c8a2946c14daf1259398","last_reissued_at":"2026-05-18T01:35:10.223609Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:10.223609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Broadband biphotons in a single spatial mode","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"A. V. Paterova, I. V. Dyakonov, K. G. Katamadze, N. A. Borshchevskaya, S. P. Kulik","submitted_at":"2015-04-29T08:23:31Z","abstract_excerpt":"We demonastrate experimental technique for generating spatially single-mode broadband biphoton field. The method is based on dispersive optical element which precisely tailors the structure of type-I SPDC frequency angular spectrum in order to shift different spectral components to a single angular mode. Spatial mode filtering is realized by coupling biphotons into a single-mode optical fiber."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07760","kind":"arxiv","version":3},"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":"1504.07760","created_at":"2026-05-18T01:35:10.223714+00:00"},{"alias_kind":"arxiv_version","alias_value":"1504.07760v3","created_at":"2026-05-18T01:35:10.223714+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07760","created_at":"2026-05-18T01:35:10.223714+00:00"},{"alias_kind":"pith_short_12","alias_value":"2MDSDGMBN4NL","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_16","alias_value":"2MDSDGMBN4NL34OA","created_at":"2026-05-18T12:29:02.477457+00:00"},{"alias_kind":"pith_short_8","alias_value":"2MDSDGMB","created_at":"2026-05-18T12:29:02.477457+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/2MDSDGMBN4NL34OAUXJ5HHDIHW","json":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW.json","graph_json":"https://pith.science/api/pith-number/2MDSDGMBN4NL34OAUXJ5HHDIHW/graph.json","events_json":"https://pith.science/api/pith-number/2MDSDGMBN4NL34OAUXJ5HHDIHW/events.json","paper":"https://pith.science/paper/2MDSDGMB"},"agent_actions":{"view_html":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW","download_json":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW.json","view_paper":"https://pith.science/paper/2MDSDGMB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1504.07760&json=true","fetch_graph":"https://pith.science/api/pith-number/2MDSDGMBN4NL34OAUXJ5HHDIHW/graph.json","fetch_events":"https://pith.science/api/pith-number/2MDSDGMBN4NL34OAUXJ5HHDIHW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW/action/storage_attestation","attest_author":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW/action/author_attestation","sign_citation":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW/action/citation_signature","submit_replication":"https://pith.science/pith/2MDSDGMBN4NL34OAUXJ5HHDIHW/action/replication_record"}},"created_at":"2026-05-18T01:35:10.223714+00:00","updated_at":"2026-05-18T01:35:10.223714+00:00"}