{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:CSOXYHMTFSTJOPK67ACC373SRE","short_pith_number":"pith:CSOXYHMT","canonical_record":{"source":{"id":"1005.3086","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-18T02:00:34Z","cross_cats_sorted":[],"title_canon_sha256":"d1c052f68fc18f6f79a3aded5da6510c6432de864e7a4524654b8a393bbe09ff","abstract_canon_sha256":"1237dd52d90599addb61d85ffc2798278a8d022e7a6bfcc5ed0d833355a75ba1"},"schema_version":"1.0"},"canonical_sha256":"149d7c1d932ca6973d5ef8042dff72891917fd74f056a0439dec3f053d1fb111","source":{"kind":"arxiv","id":"1005.3086","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3086","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3086v2","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3086","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"CSOXYHMTFSTJ","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"CSOXYHMTFSTJOPK6","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"CSOXYHMT","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:CSOXYHMTFSTJOPK67ACC373SRE","target":"record","payload":{"canonical_record":{"source":{"id":"1005.3086","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-18T02:00:34Z","cross_cats_sorted":[],"title_canon_sha256":"d1c052f68fc18f6f79a3aded5da6510c6432de864e7a4524654b8a393bbe09ff","abstract_canon_sha256":"1237dd52d90599addb61d85ffc2798278a8d022e7a6bfcc5ed0d833355a75ba1"},"schema_version":"1.0"},"canonical_sha256":"149d7c1d932ca6973d5ef8042dff72891917fd74f056a0439dec3f053d1fb111","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:56.680142Z","signature_b64":"jOaJnM6fh8pjFG7iSua1cqoFkQvAHaLIeTWGs1YS8oskLLwhe+sxYNcTAVciWjKkJ2Rh7b/ryjFPcPcmO6oNBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"149d7c1d932ca6973d5ef8042dff72891917fd74f056a0439dec3f053d1fb111","last_reissued_at":"2026-05-18T02:23:56.679471Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:56.679471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.3086","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":"2026-05-18T02:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2qCF5hGYCRHtL5fIRpUexmMaZI7uy3TnO86Hp2OvDrw8RJeHimayjT0NIiCDKLAOw8Zyg2XAf33OLDFKFKgeDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:19:48.649864Z"},"content_sha256":"e3b0a8499a2a88a21d7a4cb652b4fe06b74a73636557d4cda927f5b7dad6314c","schema_version":"1.0","event_id":"sha256:e3b0a8499a2a88a21d7a4cb652b4fe06b74a73636557d4cda927f5b7dad6314c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:CSOXYHMTFSTJOPK67ACC373SRE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Engineered optical nonlinearity for a quantum light source","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Agata M. Bra\\'nczyk, Alessandro Fedrizzi, Andrew G. White, Timothy C. Ralph","submitted_at":"2010-05-18T02:00:34Z","abstract_excerpt":"Single-photon pairs created in the nonlinear process of spontaneous parametric downconversion form the backbone of fundamental and applied experimental quantum information science. Many applications benefit from careful spectral shaping of the single-photon wave-packets. In this paper we tailor the joint spectral wave-function of downconverted photons by modulating the nonlinearity of a poled crystal without affecting the phase-matching conditions. We designed a crystal with a Gaussian nonlinearity profile and confirmed successful wave-packet shaping by two-photon interference experiments. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3086","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":"2026-05-18T02:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LyG3FCOM/txtY3ZOVE9k8zvXs7sTHE22IcS2VuyO2T+19GDJWadOLToSj6Htop2Ylf37VCSltjHJzMSXyVXGCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:19:48.650215Z"},"content_sha256":"e1879139c2e0dc24804f7d737da8804e03bab93698da0fefac48a6b54487fb10","schema_version":"1.0","event_id":"sha256:e1879139c2e0dc24804f7d737da8804e03bab93698da0fefac48a6b54487fb10"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CSOXYHMTFSTJOPK67ACC373SRE/bundle.json","state_url":"https://pith.science/pith/CSOXYHMTFSTJOPK67ACC373SRE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CSOXYHMTFSTJOPK67ACC373SRE/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":"2026-05-30T09:19:48Z","links":{"resolver":"https://pith.science/pith/CSOXYHMTFSTJOPK67ACC373SRE","bundle":"https://pith.science/pith/CSOXYHMTFSTJOPK67ACC373SRE/bundle.json","state":"https://pith.science/pith/CSOXYHMTFSTJOPK67ACC373SRE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CSOXYHMTFSTJOPK67ACC373SRE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:CSOXYHMTFSTJOPK67ACC373SRE","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":"1237dd52d90599addb61d85ffc2798278a8d022e7a6bfcc5ed0d833355a75ba1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-18T02:00:34Z","title_canon_sha256":"d1c052f68fc18f6f79a3aded5da6510c6432de864e7a4524654b8a393bbe09ff"},"schema_version":"1.0","source":{"id":"1005.3086","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3086","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3086v2","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3086","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"CSOXYHMTFSTJ","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"CSOXYHMTFSTJOPK6","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"CSOXYHMT","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:e1879139c2e0dc24804f7d737da8804e03bab93698da0fefac48a6b54487fb10","target":"graph","created_at":"2026-05-18T02:23:56Z","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":"Single-photon pairs created in the nonlinear process of spontaneous parametric downconversion form the backbone of fundamental and applied experimental quantum information science. Many applications benefit from careful spectral shaping of the single-photon wave-packets. In this paper we tailor the joint spectral wave-function of downconverted photons by modulating the nonlinearity of a poled crystal without affecting the phase-matching conditions. We designed a crystal with a Gaussian nonlinearity profile and confirmed successful wave-packet shaping by two-photon interference experiments. We ","authors_text":"Agata M. Bra\\'nczyk, Alessandro Fedrizzi, Andrew G. White, Timothy C. Ralph","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-18T02:00:34Z","title":"Engineered optical nonlinearity for a quantum light source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3086","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:e3b0a8499a2a88a21d7a4cb652b4fe06b74a73636557d4cda927f5b7dad6314c","target":"record","created_at":"2026-05-18T02:23:56Z","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":"1237dd52d90599addb61d85ffc2798278a8d022e7a6bfcc5ed0d833355a75ba1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-18T02:00:34Z","title_canon_sha256":"d1c052f68fc18f6f79a3aded5da6510c6432de864e7a4524654b8a393bbe09ff"},"schema_version":"1.0","source":{"id":"1005.3086","kind":"arxiv","version":2}},"canonical_sha256":"149d7c1d932ca6973d5ef8042dff72891917fd74f056a0439dec3f053d1fb111","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"149d7c1d932ca6973d5ef8042dff72891917fd74f056a0439dec3f053d1fb111","first_computed_at":"2026-05-18T02:23:56.679471Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:56.679471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jOaJnM6fh8pjFG7iSua1cqoFkQvAHaLIeTWGs1YS8oskLLwhe+sxYNcTAVciWjKkJ2Rh7b/ryjFPcPcmO6oNBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:56.680142Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3086","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3b0a8499a2a88a21d7a4cb652b4fe06b74a73636557d4cda927f5b7dad6314c","sha256:e1879139c2e0dc24804f7d737da8804e03bab93698da0fefac48a6b54487fb10"],"state_sha256":"c3a1a2400a7257b9cd83ea5e92b363aeecb3ceb590078ae7972fcb69c58b962a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wx3hNUqog8YOCco4o/C47ldCBnvIlg9hbfvsKAqgOuif42Bk6Cd0KZwuVx+K8lbDCubO6JdoNeDXpHd2NHmaBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:19:48.652690Z","bundle_sha256":"2f7638ff89406f3d13bf59acf5aa3f3ef2f7ed629ca8ad89ff163a64e88d78ee"}}