{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:IBNGWIFY4LSR4OPNOMVLEDMMH4","short_pith_number":"pith:IBNGWIFY","canonical_record":{"source":{"id":"2201.02731","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-01-08T02:12:24Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"b855a6a426442ddc741711935405307e9305aee1b534dbca058ec1ffe9c83618","abstract_canon_sha256":"a5c584d2df12f02d21b7e2b27d205e0b7b82439df16121a160798dc85c0144c7"},"schema_version":"1.0"},"canonical_sha256":"405a6b20b8e2e51e39ed732ab20d8c3f3079eae83a865fc91a1f68c2a95f5bd3","source":{"kind":"arxiv","id":"2201.02731","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.02731","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"arxiv_version","alias_value":"2201.02731v2","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.02731","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"pith_short_12","alias_value":"IBNGWIFY4LSR","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"pith_short_16","alias_value":"IBNGWIFY4LSR4OPN","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"pith_short_8","alias_value":"IBNGWIFY","created_at":"2026-07-05T04:44:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:IBNGWIFY4LSR4OPNOMVLEDMMH4","target":"record","payload":{"canonical_record":{"source":{"id":"2201.02731","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-01-08T02:12:24Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"b855a6a426442ddc741711935405307e9305aee1b534dbca058ec1ffe9c83618","abstract_canon_sha256":"a5c584d2df12f02d21b7e2b27d205e0b7b82439df16121a160798dc85c0144c7"},"schema_version":"1.0"},"canonical_sha256":"405a6b20b8e2e51e39ed732ab20d8c3f3079eae83a865fc91a1f68c2a95f5bd3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:44:19.544477Z","signature_b64":"UqZJvGmFGQrlvmkIUF7oI6TEyzWOXp9vFyDwADhAikzQK+kMm2dNLmNv4TlfCpVP3U/xfKLQdo6jeqg7xlXSDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"405a6b20b8e2e51e39ed732ab20d8c3f3079eae83a865fc91a1f68c2a95f5bd3","last_reissued_at":"2026-07-05T04:44:19.544007Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:44:19.544007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.02731","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":"2026-07-05T04:44:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R/4SI2HAvFzRSqUYa3Bj2WKv6fZRZJhdmebNYLyA73TBmNNPFvZB6vcessQiWkjiVlhkCkjc/AfeoJiWI9akCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T10:04:01.820717Z"},"content_sha256":"8728e868992593a074b645a17f37e169b96579766df1ee0cb2f4c506b94e4f6b","schema_version":"1.0","event_id":"sha256:8728e868992593a074b645a17f37e169b96579766df1ee0cb2f4c506b94e4f6b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:IBNGWIFY4LSR4OPNOMVLEDMMH4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient Source of Shaped Single Photons Based on an Integrated Diamond Nanophotonic System","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Aziza Suleymanzade, Bartholomeus Machielse, Can M. Knaut, Daniel R. Assumpcao, David Levonian, Erik N. Knall, Hongkun Park, Marko Lon\\v{c}ar, Michelle Chalupnik, Mihir K. Bhaskar, Mikhail D. Lukin, Pavel L. Stroganov, Pieter-Jan Stas, Ralf Riedinger, Rivka Bekenstein, Wenjie Gong, Yan Qi Huan","submitted_at":"2022-01-08T02:12:24Z","abstract_excerpt":"An efficient, scalable source of shaped single photons that can be directly integrated with optical fiber networks and quantum memories is at the heart of many protocols in quantum information science. We demonstrate a deterministic source of arbitrarily temporally shaped single-photon pulses with high efficiency (detection efficiency = 14.9%) and purity ($g^{(2)}(0) = 0.0168$) and streams of up to 11 consecutively detected single photons using a silicon-vacancy center in a highly directional fiber-integrated diamond nanophotonic cavity. Combined with previously demonstrated spin-photon entang"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.02731","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2201.02731/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:44:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9xmzgFtCEpNAIuPUIXwwwMZ/Rx/+eixSnpiVvr9d6DV7v6j9D8WYG53ondYLm3jrjWdMK68fx4BRDmPaluCnDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T10:04:01.821202Z"},"content_sha256":"3c90f6cb4ed1547eb5848ca947a6aebf2b0b7fd00ac104a29d539c0ff102ffb4","schema_version":"1.0","event_id":"sha256:3c90f6cb4ed1547eb5848ca947a6aebf2b0b7fd00ac104a29d539c0ff102ffb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4/bundle.json","state_url":"https://pith.science/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4/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":"2026-08-11T10:04:01Z","links":{"resolver":"https://pith.science/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4","bundle":"https://pith.science/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4/bundle.json","state":"https://pith.science/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IBNGWIFY4LSR4OPNOMVLEDMMH4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:IBNGWIFY4LSR4OPNOMVLEDMMH4","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":"a5c584d2df12f02d21b7e2b27d205e0b7b82439df16121a160798dc85c0144c7","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-01-08T02:12:24Z","title_canon_sha256":"b855a6a426442ddc741711935405307e9305aee1b534dbca058ec1ffe9c83618"},"schema_version":"1.0","source":{"id":"2201.02731","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.02731","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"arxiv_version","alias_value":"2201.02731v2","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.02731","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"pith_short_12","alias_value":"IBNGWIFY4LSR","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"pith_short_16","alias_value":"IBNGWIFY4LSR4OPN","created_at":"2026-07-05T04:44:19Z"},{"alias_kind":"pith_short_8","alias_value":"IBNGWIFY","created_at":"2026-07-05T04:44:19Z"}],"graph_snapshots":[{"event_id":"sha256:3c90f6cb4ed1547eb5848ca947a6aebf2b0b7fd00ac104a29d539c0ff102ffb4","target":"graph","created_at":"2026-07-05T04:44:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2201.02731/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An efficient, scalable source of shaped single photons that can be directly integrated with optical fiber networks and quantum memories is at the heart of many protocols in quantum information science. We demonstrate a deterministic source of arbitrarily temporally shaped single-photon pulses with high efficiency (detection efficiency = 14.9%) and purity ($g^{(2)}(0) = 0.0168$) and streams of up to 11 consecutively detected single photons using a silicon-vacancy center in a highly directional fiber-integrated diamond nanophotonic cavity. Combined with previously demonstrated spin-photon entang","authors_text":"Aziza Suleymanzade, Bartholomeus Machielse, Can M. Knaut, Daniel R. Assumpcao, David Levonian, Erik N. Knall, Hongkun Park, Marko Lon\\v{c}ar, Michelle Chalupnik, Mihir K. Bhaskar, Mikhail D. Lukin, Pavel L. Stroganov, Pieter-Jan Stas, Ralf Riedinger, Rivka Bekenstein, Wenjie Gong, Yan Qi Huan","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-01-08T02:12:24Z","title":"Efficient Source of Shaped Single Photons Based on an Integrated Diamond Nanophotonic System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.02731","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":"sha256:8728e868992593a074b645a17f37e169b96579766df1ee0cb2f4c506b94e4f6b","target":"record","created_at":"2026-07-05T04:44:19Z","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":"a5c584d2df12f02d21b7e2b27d205e0b7b82439df16121a160798dc85c0144c7","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-01-08T02:12:24Z","title_canon_sha256":"b855a6a426442ddc741711935405307e9305aee1b534dbca058ec1ffe9c83618"},"schema_version":"1.0","source":{"id":"2201.02731","kind":"arxiv","version":2}},"canonical_sha256":"405a6b20b8e2e51e39ed732ab20d8c3f3079eae83a865fc91a1f68c2a95f5bd3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"405a6b20b8e2e51e39ed732ab20d8c3f3079eae83a865fc91a1f68c2a95f5bd3","first_computed_at":"2026-07-05T04:44:19.544007Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:44:19.544007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UqZJvGmFGQrlvmkIUF7oI6TEyzWOXp9vFyDwADhAikzQK+kMm2dNLmNv4TlfCpVP3U/xfKLQdo6jeqg7xlXSDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:44:19.544477Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.02731","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8728e868992593a074b645a17f37e169b96579766df1ee0cb2f4c506b94e4f6b","sha256:3c90f6cb4ed1547eb5848ca947a6aebf2b0b7fd00ac104a29d539c0ff102ffb4"],"state_sha256":"84734b9adc67d63c2d5e1daae173dadb8fced55eab8fc3c6d5501521353fec48"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uBImfdn3QvMFbMgfxNQ8bFgAuC5txEg0m8ijBO6i4dRMoUymYP4ADj/8B/AwVpDwC1VvK3Yd9gRameIXAuOKAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T10:04:01.826721Z","bundle_sha256":"937b0c986b02f149ca96af7b5c328959ffb5d172a629d9f5eaf54d645ac51617"}}