{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:R3WAIXC2LKN47KFQR4QCIH6BPV","short_pith_number":"pith:R3WAIXC2","canonical_record":{"source":{"id":"2008.10243","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-08-24T08:02:43Z","cross_cats_sorted":[],"title_canon_sha256":"bc26772b41a1378d50a77e9939061e1ef2ee652089d0725779a94a20dd31dd9e","abstract_canon_sha256":"1a34bc610f9242f5c4b2b652becfc601d45f08d04ed6d521d188b44b82ad77a3"},"schema_version":"1.0"},"canonical_sha256":"8eec045c5a5a9bcfa8b08f20241fc17d48135c02ee150373d786718a1186471a","source":{"kind":"arxiv","id":"2008.10243","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.10243","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"arxiv_version","alias_value":"2008.10243v2","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.10243","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_12","alias_value":"R3WAIXC2LKN4","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_16","alias_value":"R3WAIXC2LKN47KFQ","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_8","alias_value":"R3WAIXC2","created_at":"2026-07-05T01:49:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:R3WAIXC2LKN47KFQR4QCIH6BPV","target":"record","payload":{"canonical_record":{"source":{"id":"2008.10243","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-08-24T08:02:43Z","cross_cats_sorted":[],"title_canon_sha256":"bc26772b41a1378d50a77e9939061e1ef2ee652089d0725779a94a20dd31dd9e","abstract_canon_sha256":"1a34bc610f9242f5c4b2b652becfc601d45f08d04ed6d521d188b44b82ad77a3"},"schema_version":"1.0"},"canonical_sha256":"8eec045c5a5a9bcfa8b08f20241fc17d48135c02ee150373d786718a1186471a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:49:54.409785Z","signature_b64":"8Id4M4XpAOjAp1meRCZgUektD55uwPaKHy298/jVK6hYmb3w0hmdosbAp15vx/7m7KpgZDXFi/afoovwcQaEAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8eec045c5a5a9bcfa8b08f20241fc17d48135c02ee150373d786718a1186471a","last_reissued_at":"2026-07-05T01:49:54.409392Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:49:54.409392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.10243","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":"2026-07-05T01:49:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CG3tsiAIHFS6A6nlvHtKjXYZzO70binE4+ecPFcTyFDi+5vCNcFO4GT33xIqAaLRPTQFA5FwWZ0rIRKHcP4NDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T23:25:42.995984Z"},"content_sha256":"23a3ee31e8b0b6184469fd23206f13a6b4902ea7d0f878c2d9a67f3c2cee0ceb","schema_version":"1.0","event_id":"sha256:23a3ee31e8b0b6184469fd23206f13a6b4902ea7d0f878c2d9a67f3c2cee0ceb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:R3WAIXC2LKN47KFQR4QCIH6BPV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Numerical analysis of LG33 second harmonic generation in comparison to the LG00 case","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Benno Willke, Henning Vahlbruch, Joscha Heinze","submitted_at":"2020-08-24T08:02:43Z","abstract_excerpt":"For coating Brownian thermal noise reduction in future gravitational wave detectors, it is proposed to use light in the helical Laguerre-Gaussian LG33 mode instead of the currently used LG00 mode. However, the simultaneous reduction of quantum noise would then require the efficient generation of squeezed vacuum states in the LG33 mode. Current squeezed light generation techniques employ continuous-wave second harmonic generation (SHG). Here, we simulate the SHG for both modes numerically to derive first insights into the transferability of standard squeezed light generation techniques to the L"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.10243","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/2008.10243/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":"2026-07-05T01:49:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MSKXGuvdhmwycCpPEACnDFrYdFUAOMN65YavkhOsajWhkuVZpTrClpsxPAbtPFCb39oQPpJkIyr4BrR8kwZmBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T23:25:42.996364Z"},"content_sha256":"1e2a81921a5e65523824e0118e74ed2ef64ee4b358a832f39005a4e4b96039ea","schema_version":"1.0","event_id":"sha256:1e2a81921a5e65523824e0118e74ed2ef64ee4b358a832f39005a4e4b96039ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R3WAIXC2LKN47KFQR4QCIH6BPV/bundle.json","state_url":"https://pith.science/pith/R3WAIXC2LKN47KFQR4QCIH6BPV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R3WAIXC2LKN47KFQR4QCIH6BPV/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":"2026-07-06T23:25:42Z","links":{"resolver":"https://pith.science/pith/R3WAIXC2LKN47KFQR4QCIH6BPV","bundle":"https://pith.science/pith/R3WAIXC2LKN47KFQR4QCIH6BPV/bundle.json","state":"https://pith.science/pith/R3WAIXC2LKN47KFQR4QCIH6BPV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R3WAIXC2LKN47KFQR4QCIH6BPV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:R3WAIXC2LKN47KFQR4QCIH6BPV","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":"1a34bc610f9242f5c4b2b652becfc601d45f08d04ed6d521d188b44b82ad77a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-08-24T08:02:43Z","title_canon_sha256":"bc26772b41a1378d50a77e9939061e1ef2ee652089d0725779a94a20dd31dd9e"},"schema_version":"1.0","source":{"id":"2008.10243","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.10243","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"arxiv_version","alias_value":"2008.10243v2","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.10243","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_12","alias_value":"R3WAIXC2LKN4","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_16","alias_value":"R3WAIXC2LKN47KFQ","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_8","alias_value":"R3WAIXC2","created_at":"2026-07-05T01:49:54Z"}],"graph_snapshots":[{"event_id":"sha256:1e2a81921a5e65523824e0118e74ed2ef64ee4b358a832f39005a4e4b96039ea","target":"graph","created_at":"2026-07-05T01:49:54Z","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/2008.10243/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"For coating Brownian thermal noise reduction in future gravitational wave detectors, it is proposed to use light in the helical Laguerre-Gaussian LG33 mode instead of the currently used LG00 mode. However, the simultaneous reduction of quantum noise would then require the efficient generation of squeezed vacuum states in the LG33 mode. Current squeezed light generation techniques employ continuous-wave second harmonic generation (SHG). Here, we simulate the SHG for both modes numerically to derive first insights into the transferability of standard squeezed light generation techniques to the L","authors_text":"Benno Willke, Henning Vahlbruch, Joscha Heinze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-08-24T08:02:43Z","title":"Numerical analysis of LG33 second harmonic generation in comparison to the LG00 case"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.10243","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":"sha256:23a3ee31e8b0b6184469fd23206f13a6b4902ea7d0f878c2d9a67f3c2cee0ceb","target":"record","created_at":"2026-07-05T01:49:54Z","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":"1a34bc610f9242f5c4b2b652becfc601d45f08d04ed6d521d188b44b82ad77a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-08-24T08:02:43Z","title_canon_sha256":"bc26772b41a1378d50a77e9939061e1ef2ee652089d0725779a94a20dd31dd9e"},"schema_version":"1.0","source":{"id":"2008.10243","kind":"arxiv","version":2}},"canonical_sha256":"8eec045c5a5a9bcfa8b08f20241fc17d48135c02ee150373d786718a1186471a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8eec045c5a5a9bcfa8b08f20241fc17d48135c02ee150373d786718a1186471a","first_computed_at":"2026-07-05T01:49:54.409392Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:49:54.409392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8Id4M4XpAOjAp1meRCZgUektD55uwPaKHy298/jVK6hYmb3w0hmdosbAp15vx/7m7KpgZDXFi/afoovwcQaEAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:49:54.409785Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.10243","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23a3ee31e8b0b6184469fd23206f13a6b4902ea7d0f878c2d9a67f3c2cee0ceb","sha256:1e2a81921a5e65523824e0118e74ed2ef64ee4b358a832f39005a4e4b96039ea"],"state_sha256":"d5f67a00960c5b0156e858ed277999036aa0d4bbc7bc6eacad3d08f47adf7ffa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9rF157ztWopU2XIoQF71g0YZL0/zejBguRssQJZsJAFVVdHMY+3IrMZc9SuJQeaeKAHdWX9dIXpAc4B810p8Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T23:25:42.998288Z","bundle_sha256":"6c9dcaf3f490c8d2bfee8287858cebeb38b73d0f55bb2b67564eb29f164f6148"}}