{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:2CRZZ232O4SMEYJARNF7H4I5EN","short_pith_number":"pith:2CRZZ232","canonical_record":{"source":{"id":"1006.4743","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-06-24T10:43:23Z","cross_cats_sorted":[],"title_canon_sha256":"ff41cdd271226b10eb79e0bb82500d3513d8678d9badef7d0bd93df98a559fa5","abstract_canon_sha256":"e9f586fbfa01cd473de92eb6ac0e9ce03f5996fa43fd9562b0c2c83af55ee6a6"},"schema_version":"1.0"},"canonical_sha256":"d0a39ceb7a7724c261208b4bf3f11d236ecd2eca0af4c643edddd1428b01c0a8","source":{"kind":"arxiv","id":"1006.4743","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.4743","created_at":"2026-05-18T02:06:42Z"},{"alias_kind":"arxiv_version","alias_value":"1006.4743v1","created_at":"2026-05-18T02:06:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.4743","created_at":"2026-05-18T02:06:42Z"},{"alias_kind":"pith_short_12","alias_value":"2CRZZ232O4SM","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2CRZZ232O4SMEYJA","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2CRZZ232","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:2CRZZ232O4SMEYJARNF7H4I5EN","target":"record","payload":{"canonical_record":{"source":{"id":"1006.4743","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-06-24T10:43:23Z","cross_cats_sorted":[],"title_canon_sha256":"ff41cdd271226b10eb79e0bb82500d3513d8678d9badef7d0bd93df98a559fa5","abstract_canon_sha256":"e9f586fbfa01cd473de92eb6ac0e9ce03f5996fa43fd9562b0c2c83af55ee6a6"},"schema_version":"1.0"},"canonical_sha256":"d0a39ceb7a7724c261208b4bf3f11d236ecd2eca0af4c643edddd1428b01c0a8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:42.833226Z","signature_b64":"i87vGRRnb5841otvU2/GLusfoNLlaQ0vzwgEHPVDYR2zaR7SW4MnGCcEYcoJXvXsn1mFE121KgtbbIoLmBF1AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0a39ceb7a7724c261208b4bf3f11d236ecd2eca0af4c643edddd1428b01c0a8","last_reissued_at":"2026-05-18T02:06:42.832673Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:42.832673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.4743","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:06:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DR8KURvVrhP1yw//rKeBJEjMBQxKky4srqGWbMqtYAoZ0KQy9SJ9OMvlcy3tmAqZ0eqgLDjC+QqMFwhecMdYCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:57:43.900750Z"},"content_sha256":"785d795f950e754a7487584510786a50ae0040e385cfb3b75be68ecfa108e88a","schema_version":"1.0","event_id":"sha256:785d795f950e754a7487584510786a50ae0040e385cfb3b75be68ecfa108e88a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:2CRZZ232O4SMEYJARNF7H4I5EN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Realization of a Knill-Laflamme-Milburn C-NOT gate -a photonic quantum circuit combining effective optical nonlinearities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Holger F. Hofmann, Jeremy L. O'Brien, Ryo Okamoto, Shigeki Takeuchi","submitted_at":"2010-06-24T10:43:23Z","abstract_excerpt":"Quantum information science addresses how uniquely quantum mechanical phenomena such as superposition and entanglement can enhance communication, information processing and precision measurement. Photons are appealing for their low noise, light-speed transmission and ease of manipulation using conventional optical components. However, the lack of highly efficient optical Kerr nonlinearities at single photon level was a major obstacle. In a breakthrough, Knill, Laflamme and Milburn (KLM) showed that such an efficient nonlinearity can be achieved using only linear optical elements, auxiliary pho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.4743","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:06:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LzruIWQrTAyBlmD/01M3Ch9SVsA9+ErplHmrpSQN0Mm0XF37ILLWlGZh9VXvuI9r21vfI8wE7IauRS8Hck5/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:57:43.901118Z"},"content_sha256":"0ffc2788ea70e839812a180a2cf93f67422efaf905fae379ab2cd3ffb451e68c","schema_version":"1.0","event_id":"sha256:0ffc2788ea70e839812a180a2cf93f67422efaf905fae379ab2cd3ffb451e68c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2CRZZ232O4SMEYJARNF7H4I5EN/bundle.json","state_url":"https://pith.science/pith/2CRZZ232O4SMEYJARNF7H4I5EN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2CRZZ232O4SMEYJARNF7H4I5EN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T20:57:43Z","links":{"resolver":"https://pith.science/pith/2CRZZ232O4SMEYJARNF7H4I5EN","bundle":"https://pith.science/pith/2CRZZ232O4SMEYJARNF7H4I5EN/bundle.json","state":"https://pith.science/pith/2CRZZ232O4SMEYJARNF7H4I5EN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2CRZZ232O4SMEYJARNF7H4I5EN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:2CRZZ232O4SMEYJARNF7H4I5EN","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"e9f586fbfa01cd473de92eb6ac0e9ce03f5996fa43fd9562b0c2c83af55ee6a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-06-24T10:43:23Z","title_canon_sha256":"ff41cdd271226b10eb79e0bb82500d3513d8678d9badef7d0bd93df98a559fa5"},"schema_version":"1.0","source":{"id":"1006.4743","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.4743","created_at":"2026-05-18T02:06:42Z"},{"alias_kind":"arxiv_version","alias_value":"1006.4743v1","created_at":"2026-05-18T02:06:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.4743","created_at":"2026-05-18T02:06:42Z"},{"alias_kind":"pith_short_12","alias_value":"2CRZZ232O4SM","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"2CRZZ232O4SMEYJA","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"2CRZZ232","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:0ffc2788ea70e839812a180a2cf93f67422efaf905fae379ab2cd3ffb451e68c","target":"graph","created_at":"2026-05-18T02:06:42Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Quantum information science addresses how uniquely quantum mechanical phenomena such as superposition and entanglement can enhance communication, information processing and precision measurement. Photons are appealing for their low noise, light-speed transmission and ease of manipulation using conventional optical components. However, the lack of highly efficient optical Kerr nonlinearities at single photon level was a major obstacle. In a breakthrough, Knill, Laflamme and Milburn (KLM) showed that such an efficient nonlinearity can be achieved using only linear optical elements, auxiliary pho","authors_text":"Holger F. Hofmann, Jeremy L. O'Brien, Ryo Okamoto, Shigeki Takeuchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-06-24T10:43:23Z","title":"Realization of a Knill-Laflamme-Milburn C-NOT gate -a photonic quantum circuit combining effective optical nonlinearities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.4743","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:785d795f950e754a7487584510786a50ae0040e385cfb3b75be68ecfa108e88a","target":"record","created_at":"2026-05-18T02:06:42Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"e9f586fbfa01cd473de92eb6ac0e9ce03f5996fa43fd9562b0c2c83af55ee6a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-06-24T10:43:23Z","title_canon_sha256":"ff41cdd271226b10eb79e0bb82500d3513d8678d9badef7d0bd93df98a559fa5"},"schema_version":"1.0","source":{"id":"1006.4743","kind":"arxiv","version":1}},"canonical_sha256":"d0a39ceb7a7724c261208b4bf3f11d236ecd2eca0af4c643edddd1428b01c0a8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0a39ceb7a7724c261208b4bf3f11d236ecd2eca0af4c643edddd1428b01c0a8","first_computed_at":"2026-05-18T02:06:42.832673Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:42.832673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i87vGRRnb5841otvU2/GLusfoNLlaQ0vzwgEHPVDYR2zaR7SW4MnGCcEYcoJXvXsn1mFE121KgtbbIoLmBF1AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:42.833226Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.4743","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:785d795f950e754a7487584510786a50ae0040e385cfb3b75be68ecfa108e88a","sha256:0ffc2788ea70e839812a180a2cf93f67422efaf905fae379ab2cd3ffb451e68c"],"state_sha256":"2a4bd1999d0e9f995d231b99b54ce3f9f6aa12dfb0a1bdd781b05afca1f3c0a6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vWv7yvOCGxKDjfgjlSpPBtLTGM45NHhkmk2FWs/Tabp3TQXw7zaX1At0yxo6VUziMaBTjAtJj1Djc1qfpbmGBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T20:57:43.905830Z","bundle_sha256":"385c3c8d2f4fa55499e5dddb523b46d34f2e00ff74fd6393a9a73a60c0f7d586"}}