{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:6O2GOY6ZJ7W2QD7STO3OHOBMJJ","short_pith_number":"pith:6O2GOY6Z","schema_version":"1.0","canonical_sha256":"f3b46763d94feda80ff29bb6e3b82c4a5ef0dd032db47fda50c09087a512932e","source":{"kind":"arxiv","id":"1011.2982","version":1},"attestation_state":"computed","paper":{"title":"Universal Squash Model For Optical Communications Using Linear Optics And Threshold Detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chi-Hang Fred Fung, H. F. Chau, Hoi-Kwong Lo","submitted_at":"2010-11-12T16:52:50Z","abstract_excerpt":"The transmission of photons through open-air or an optical fiber is an important primitive in quantum information processing. Theoretical description of such a transmission process often considers only a single photon as the information carrier and thus fails to accurately describe experimental optical implementations where any number of photons may enter a detector. It is important to bridge this big gap between experimental implementations and the theoretical description. One powerful method that emerges from recent efforts to achieve this goal is to consider a squash model that conceptually"},"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":"1011.2982","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-11-12T16:52:50Z","cross_cats_sorted":[],"title_canon_sha256":"87abd7293ce89449d92a077795331f7865d1ef18063a591c99a358823151092d","abstract_canon_sha256":"d9e4069fd880af4ec7ca15e79990a12e24615654b718fa0290f73fce8f1f4753"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:14:07.994002Z","signature_b64":"uPKpFQQsmS8Y9NQxd7mh7chMvues+6S1EW6hDdcMuQbyKQosEKuczJNboMBwj3iz7J1YDXogLLeM/xUZ0Zf9DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f3b46763d94feda80ff29bb6e3b82c4a5ef0dd032db47fda50c09087a512932e","last_reissued_at":"2026-05-18T04:14:07.993244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:14:07.993244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Universal Squash Model For Optical Communications Using Linear Optics And Threshold Detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chi-Hang Fred Fung, H. F. Chau, Hoi-Kwong Lo","submitted_at":"2010-11-12T16:52:50Z","abstract_excerpt":"The transmission of photons through open-air or an optical fiber is an important primitive in quantum information processing. Theoretical description of such a transmission process often considers only a single photon as the information carrier and thus fails to accurately describe experimental optical implementations where any number of photons may enter a detector. It is important to bridge this big gap between experimental implementations and the theoretical description. One powerful method that emerges from recent efforts to achieve this goal is to consider a squash model that conceptually"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2982","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":"1011.2982","created_at":"2026-05-18T04:14:07.993371+00:00"},{"alias_kind":"arxiv_version","alias_value":"1011.2982v1","created_at":"2026-05-18T04:14:07.993371+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2982","created_at":"2026-05-18T04:14:07.993371+00:00"},{"alias_kind":"pith_short_12","alias_value":"6O2GOY6ZJ7W2","created_at":"2026-05-18T12:26:04.259169+00:00"},{"alias_kind":"pith_short_16","alias_value":"6O2GOY6ZJ7W2QD7S","created_at":"2026-05-18T12:26:04.259169+00:00"},{"alias_kind":"pith_short_8","alias_value":"6O2GOY6Z","created_at":"2026-05-18T12:26:04.259169+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/6O2GOY6ZJ7W2QD7STO3OHOBMJJ","json":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ.json","graph_json":"https://pith.science/api/pith-number/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/graph.json","events_json":"https://pith.science/api/pith-number/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/events.json","paper":"https://pith.science/paper/6O2GOY6Z"},"agent_actions":{"view_html":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ","download_json":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ.json","view_paper":"https://pith.science/paper/6O2GOY6Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1011.2982&json=true","fetch_graph":"https://pith.science/api/pith-number/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/graph.json","fetch_events":"https://pith.science/api/pith-number/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/action/storage_attestation","attest_author":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/action/author_attestation","sign_citation":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/action/citation_signature","submit_replication":"https://pith.science/pith/6O2GOY6ZJ7W2QD7STO3OHOBMJJ/action/replication_record"}},"created_at":"2026-05-18T04:14:07.993371+00:00","updated_at":"2026-05-18T04:14:07.993371+00:00"}