{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:CJNMMG2CHFFW6M4U7MBSE5JPPZ","short_pith_number":"pith:CJNMMG2C","canonical_record":{"source":{"id":"2310.01625","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2023-10-02T20:38:31Z","cross_cats_sorted":[],"title_canon_sha256":"f5ae9b38c69581e0f81174488638ca7d44031cab3828bc7b813805865655223f","abstract_canon_sha256":"83be750ee447a5e86e2e6126b1ae44fa4960d3ea60f705503cac63e0e0dd6077"},"schema_version":"1.0"},"canonical_sha256":"125ac61b42394b6f3394fb0322752f7e5d7b7dde88c0765c44b706de789a758d","source":{"kind":"arxiv","id":"2310.01625","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.01625","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"arxiv_version","alias_value":"2310.01625v2","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.01625","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"pith_short_12","alias_value":"CJNMMG2CHFFW","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"pith_short_16","alias_value":"CJNMMG2CHFFW6M4U","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"pith_short_8","alias_value":"CJNMMG2C","created_at":"2026-07-05T06:57:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:CJNMMG2CHFFW6M4U7MBSE5JPPZ","target":"record","payload":{"canonical_record":{"source":{"id":"2310.01625","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2023-10-02T20:38:31Z","cross_cats_sorted":[],"title_canon_sha256":"f5ae9b38c69581e0f81174488638ca7d44031cab3828bc7b813805865655223f","abstract_canon_sha256":"83be750ee447a5e86e2e6126b1ae44fa4960d3ea60f705503cac63e0e0dd6077"},"schema_version":"1.0"},"canonical_sha256":"125ac61b42394b6f3394fb0322752f7e5d7b7dde88c0765c44b706de789a758d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:57:56.074623Z","signature_b64":"Q5rt+q6XQh5s5ZY+pOQs11tORvxmQJx3cepC8fkMBl+glLohIRokGQbM1mtcSrf06+1jHLqZOHsOVJywjI33AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"125ac61b42394b6f3394fb0322752f7e5d7b7dde88c0765c44b706de789a758d","last_reissued_at":"2026-07-05T06:57:56.074134Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:57:56.074134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2310.01625","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":"2026-07-05T06:57:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ii+9rVKxOkLvxhKnNKvMfhjLSN/TMHhvXklqHof5I0+4A9cHV/wHfINpn4jdYbQNaVgvD2lLAXAzSExHMptcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:37:50.069209Z"},"content_sha256":"b66dbac80869282a5bb17eaa19e38b454524a46d6f997b66fbcc4c10ace51ae2","schema_version":"1.0","event_id":"sha256:b66dbac80869282a5bb17eaa19e38b454524a46d6f997b66fbcc4c10ace51ae2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:CJNMMG2CHFFW6M4U7MBSE5JPPZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Monolithic Polarizing Circular Dielectric Gratings on Bulk Substrates for Improved Photon Collection from InAs Quantum Dots","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Kevin L. Silverman, Poolad Imany, Richard P. Mirin, Ryan A. DeCrescent, Sae Woo Nam, Zixuan Wang","submitted_at":"2023-10-02T20:38:31Z","abstract_excerpt":"III-V semiconductor quantum dots (QDs) are near-ideal and versatile single-photon sources. Because of the capacity for monolithic integration with photonic structures as well as optoelectronic and optomechanical systems, they are proving useful in an increasingly broad application space. Here, we develop monolithic circular dielectric gratings on bulk substrates -- as opposed to suspended or wafer-bonded substrates -- for greatly improved photon collection from InAs quantum dots. The structures utilize a unique two-tiered distributed Bragg reflector (DBR) structure for vertical electric field "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.01625","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/2310.01625/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":"2026-07-05T06:57:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VOjNzWI6mEPK1WucMD53TirWSIaB5yPe6u3Gazykmz871K6Mwr9arXVIMDdO5TCtPEq//nfsVpX7+Q5ElzBHCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:37:50.069709Z"},"content_sha256":"61c62e6290e8feccc9676b81b38784e0ad33c620422519a0cc68ad8f4af0aad8","schema_version":"1.0","event_id":"sha256:61c62e6290e8feccc9676b81b38784e0ad33c620422519a0cc68ad8f4af0aad8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ/bundle.json","state_url":"https://pith.science/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ/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":"2026-08-07T07:37:50Z","links":{"resolver":"https://pith.science/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ","bundle":"https://pith.science/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ/bundle.json","state":"https://pith.science/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CJNMMG2CHFFW6M4U7MBSE5JPPZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:CJNMMG2CHFFW6M4U7MBSE5JPPZ","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":"83be750ee447a5e86e2e6126b1ae44fa4960d3ea60f705503cac63e0e0dd6077","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2023-10-02T20:38:31Z","title_canon_sha256":"f5ae9b38c69581e0f81174488638ca7d44031cab3828bc7b813805865655223f"},"schema_version":"1.0","source":{"id":"2310.01625","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2310.01625","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"arxiv_version","alias_value":"2310.01625v2","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2310.01625","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"pith_short_12","alias_value":"CJNMMG2CHFFW","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"pith_short_16","alias_value":"CJNMMG2CHFFW6M4U","created_at":"2026-07-05T06:57:56Z"},{"alias_kind":"pith_short_8","alias_value":"CJNMMG2C","created_at":"2026-07-05T06:57:56Z"}],"graph_snapshots":[{"event_id":"sha256:61c62e6290e8feccc9676b81b38784e0ad33c620422519a0cc68ad8f4af0aad8","target":"graph","created_at":"2026-07-05T06:57:56Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2310.01625/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"III-V semiconductor quantum dots (QDs) are near-ideal and versatile single-photon sources. Because of the capacity for monolithic integration with photonic structures as well as optoelectronic and optomechanical systems, they are proving useful in an increasingly broad application space. Here, we develop monolithic circular dielectric gratings on bulk substrates -- as opposed to suspended or wafer-bonded substrates -- for greatly improved photon collection from InAs quantum dots. The structures utilize a unique two-tiered distributed Bragg reflector (DBR) structure for vertical electric field ","authors_text":"Kevin L. Silverman, Poolad Imany, Richard P. Mirin, Ryan A. DeCrescent, Sae Woo Nam, Zixuan Wang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2023-10-02T20:38:31Z","title":"Monolithic Polarizing Circular Dielectric Gratings on Bulk Substrates for Improved Photon Collection from InAs Quantum Dots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2310.01625","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:b66dbac80869282a5bb17eaa19e38b454524a46d6f997b66fbcc4c10ace51ae2","target":"record","created_at":"2026-07-05T06:57:56Z","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":"83be750ee447a5e86e2e6126b1ae44fa4960d3ea60f705503cac63e0e0dd6077","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2023-10-02T20:38:31Z","title_canon_sha256":"f5ae9b38c69581e0f81174488638ca7d44031cab3828bc7b813805865655223f"},"schema_version":"1.0","source":{"id":"2310.01625","kind":"arxiv","version":2}},"canonical_sha256":"125ac61b42394b6f3394fb0322752f7e5d7b7dde88c0765c44b706de789a758d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"125ac61b42394b6f3394fb0322752f7e5d7b7dde88c0765c44b706de789a758d","first_computed_at":"2026-07-05T06:57:56.074134Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:57:56.074134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q5rt+q6XQh5s5ZY+pOQs11tORvxmQJx3cepC8fkMBl+glLohIRokGQbM1mtcSrf06+1jHLqZOHsOVJywjI33AA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:57:56.074623Z","signed_message":"canonical_sha256_bytes"},"source_id":"2310.01625","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b66dbac80869282a5bb17eaa19e38b454524a46d6f997b66fbcc4c10ace51ae2","sha256:61c62e6290e8feccc9676b81b38784e0ad33c620422519a0cc68ad8f4af0aad8"],"state_sha256":"043d2500c0f2494c463c5569819ed7cb6ba514a504ab8007d3187ab86d8b5fd7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m/sh5XP2qAlGEoNFkZ68pEXvwYL5om74zdFfGTbn+YxAD5lVsvcCeZ3RpZiYq23XB/v7rdxdtHT5Azi86/3RCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T07:37:50.074746Z","bundle_sha256":"11593a0cc60310d3fecb42945425b7b5510ddcf7e0940edfeb0ff300fdf0b0f5"}}