{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:GZCMBH3G5PFM742G3ICBDADCP5","short_pith_number":"pith:GZCMBH3G","canonical_record":{"source":{"id":"1103.3769","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-19T10:04:51Z","cross_cats_sorted":[],"title_canon_sha256":"ac7233c705c26b41ef0e35ac1a45f83de4c941c7dd4a8f8a69727c636e0270d5","abstract_canon_sha256":"2bb88917336bfdf8a8dabfe0af3f0564674fc537a6c651256c9a8208ec039e34"},"schema_version":"1.0"},"canonical_sha256":"3644c09f66ebcacff346da041180627f5b94ad857934698e5d6487c057562a77","source":{"kind":"arxiv","id":"1103.3769","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.3769","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"arxiv_version","alias_value":"1103.3769v2","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3769","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"pith_short_12","alias_value":"GZCMBH3G5PFM","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GZCMBH3G5PFM742G","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GZCMBH3G","created_at":"2026-05-18T12:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:GZCMBH3G5PFM742G3ICBDADCP5","target":"record","payload":{"canonical_record":{"source":{"id":"1103.3769","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-19T10:04:51Z","cross_cats_sorted":[],"title_canon_sha256":"ac7233c705c26b41ef0e35ac1a45f83de4c941c7dd4a8f8a69727c636e0270d5","abstract_canon_sha256":"2bb88917336bfdf8a8dabfe0af3f0564674fc537a6c651256c9a8208ec039e34"},"schema_version":"1.0"},"canonical_sha256":"3644c09f66ebcacff346da041180627f5b94ad857934698e5d6487c057562a77","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:49.347481Z","signature_b64":"hKssyzjmGFIGWAhHY5ouojlP27ECB6yoZe92rw8Zj7aBNoKhyZ7jRB/wpDlEIOhCi9vn/BS3uJEZKHih2rmPDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3644c09f66ebcacff346da041180627f5b94ad857934698e5d6487c057562a77","last_reissued_at":"2026-05-18T02:02:49.346856Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:49.346856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.3769","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:02:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jwtjaDXkyXCGvmdZfthPHqKn/7UzOMrlgbpw7KbXSEXjQ+MRfZ1FzmdE+AwvaXVevoj46DnFe9xN5nCHRG/3Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:55:06.755464Z"},"content_sha256":"8c225a87e597de0efca1e80843d241419b4b18056a90dddf62f36d026781ec66","schema_version":"1.0","event_id":"sha256:8c225a87e597de0efca1e80843d241419b4b18056a90dddf62f36d026781ec66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:GZCMBH3G5PFM742G3ICBDADCP5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correlated photon-pair generation in a periodically poled MgO doped stoichiometric lithium tantalate reverse proton exchanged waveguide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. S. Clark, B. J. Eggleton, C. M. Natarajan, C. Xiong, D. Bonneau, G. D. Marshall, J. L. O'Brien, M. G. Tanner, M. G. Thompson, M. Lobino, M. Marangoni, R. H. Hadfield, R. Ramponi, S. N. Dorenbos, T. Zijlstra, V. Zwiller","submitted_at":"2011-03-19T10:04:51Z","abstract_excerpt":"We demonstrate photon-pair generation in a reverse proton exchanged waveguide fabricated on a periodically poled magnesium doped stoichiometric lithium tantalate substrate. Detected pairs are generated via a cascaded second order nonlinear process where a pump laser at wavelength of 1.55 $\\mu$m is first doubled in frequency by second harmonic generation and subsequently downconverted around the same spectral region. Pairs are detected at a rate of 42 per second with a coincidence to accidental ratio of 0.7. This cascaded pair generation process is similar to four-wave-mixing where two pump pho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3769","kind":"arxiv","version":2},"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":"2026-05-18T02:02:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LLrAvw6FVyphvjGR1vu1rxIRkeM93cke2fUVhEv3TJxrI7fxTY5F/f0lEe9k3+TgOc8GFyQVG/Djed8HQ7E8AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:55:06.756166Z"},"content_sha256":"12381cf83dcb4956aeed1ae34a512ab1bedb4d298eeffbf310ac3e75cbbcebb3","schema_version":"1.0","event_id":"sha256:12381cf83dcb4956aeed1ae34a512ab1bedb4d298eeffbf310ac3e75cbbcebb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GZCMBH3G5PFM742G3ICBDADCP5/bundle.json","state_url":"https://pith.science/pith/GZCMBH3G5PFM742G3ICBDADCP5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GZCMBH3G5PFM742G3ICBDADCP5/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":"2026-05-25T18:55:06Z","links":{"resolver":"https://pith.science/pith/GZCMBH3G5PFM742G3ICBDADCP5","bundle":"https://pith.science/pith/GZCMBH3G5PFM742G3ICBDADCP5/bundle.json","state":"https://pith.science/pith/GZCMBH3G5PFM742G3ICBDADCP5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GZCMBH3G5PFM742G3ICBDADCP5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GZCMBH3G5PFM742G3ICBDADCP5","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":"2bb88917336bfdf8a8dabfe0af3f0564674fc537a6c651256c9a8208ec039e34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-19T10:04:51Z","title_canon_sha256":"ac7233c705c26b41ef0e35ac1a45f83de4c941c7dd4a8f8a69727c636e0270d5"},"schema_version":"1.0","source":{"id":"1103.3769","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.3769","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"arxiv_version","alias_value":"1103.3769v2","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3769","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"pith_short_12","alias_value":"GZCMBH3G5PFM","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GZCMBH3G5PFM742G","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GZCMBH3G","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:12381cf83dcb4956aeed1ae34a512ab1bedb4d298eeffbf310ac3e75cbbcebb3","target":"graph","created_at":"2026-05-18T02:02:49Z","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":"We demonstrate photon-pair generation in a reverse proton exchanged waveguide fabricated on a periodically poled magnesium doped stoichiometric lithium tantalate substrate. Detected pairs are generated via a cascaded second order nonlinear process where a pump laser at wavelength of 1.55 $\\mu$m is first doubled in frequency by second harmonic generation and subsequently downconverted around the same spectral region. Pairs are detected at a rate of 42 per second with a coincidence to accidental ratio of 0.7. This cascaded pair generation process is similar to four-wave-mixing where two pump pho","authors_text":"A. S. Clark, B. J. Eggleton, C. M. Natarajan, C. Xiong, D. Bonneau, G. D. Marshall, J. L. O'Brien, M. G. Tanner, M. G. Thompson, M. Lobino, M. Marangoni, R. H. Hadfield, R. Ramponi, S. N. Dorenbos, T. Zijlstra, V. Zwiller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-19T10:04:51Z","title":"Correlated photon-pair generation in a periodically poled MgO doped stoichiometric lithium tantalate reverse proton exchanged waveguide"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3769","kind":"arxiv","version":2},"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":"sha256:8c225a87e597de0efca1e80843d241419b4b18056a90dddf62f36d026781ec66","target":"record","created_at":"2026-05-18T02:02:49Z","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":"2bb88917336bfdf8a8dabfe0af3f0564674fc537a6c651256c9a8208ec039e34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-19T10:04:51Z","title_canon_sha256":"ac7233c705c26b41ef0e35ac1a45f83de4c941c7dd4a8f8a69727c636e0270d5"},"schema_version":"1.0","source":{"id":"1103.3769","kind":"arxiv","version":2}},"canonical_sha256":"3644c09f66ebcacff346da041180627f5b94ad857934698e5d6487c057562a77","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3644c09f66ebcacff346da041180627f5b94ad857934698e5d6487c057562a77","first_computed_at":"2026-05-18T02:02:49.346856Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:49.346856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hKssyzjmGFIGWAhHY5ouojlP27ECB6yoZe92rw8Zj7aBNoKhyZ7jRB/wpDlEIOhCi9vn/BS3uJEZKHih2rmPDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:49.347481Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.3769","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c225a87e597de0efca1e80843d241419b4b18056a90dddf62f36d026781ec66","sha256:12381cf83dcb4956aeed1ae34a512ab1bedb4d298eeffbf310ac3e75cbbcebb3"],"state_sha256":"7ce5e66328d3eb083004d8de0bbab14bf786c35735c0eb088402d41e3ef8b401"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DAzRTeo2rTopHcdYvWCBDKf2LVQmpM2nBJt3ITzNlkNMGbwqycnJ5YZ3Bazy/w1MW7hjCPXHvnJfV0PK/XWXBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:55:06.760438Z","bundle_sha256":"ea8e22266160ff8ec80a7f8a6a950d6bd7070cb9c8e4e2abd4af12980e29bf8d"}}