{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:FBIN4CAIUIVUH4WWBQUWUU6ILP","short_pith_number":"pith:FBIN4CAI","canonical_record":{"source":{"id":"2502.08616","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-12T18:12:14Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5d85bdf1dcefde1fc89573df780a75f2432c4039e71b4e7bab46f7f779643c5d","abstract_canon_sha256":"3343ca36d0ac8396a8ddff89d90e00fadedda650fcf10f46a7a0767454c4e5cb"},"schema_version":"1.0"},"canonical_sha256":"2850de0808a22b43f2d60c296a53c85bd4472b3de9434ae92f0218b7a364ea72","source":{"kind":"arxiv","id":"2502.08616","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.08616","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"arxiv_version","alias_value":"2502.08616v1","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.08616","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"pith_short_12","alias_value":"FBIN4CAIUIVU","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"pith_short_16","alias_value":"FBIN4CAIUIVUH4WW","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"pith_short_8","alias_value":"FBIN4CAI","created_at":"2026-07-05T10:13:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:FBIN4CAIUIVUH4WWBQUWUU6ILP","target":"record","payload":{"canonical_record":{"source":{"id":"2502.08616","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-12T18:12:14Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5d85bdf1dcefde1fc89573df780a75f2432c4039e71b4e7bab46f7f779643c5d","abstract_canon_sha256":"3343ca36d0ac8396a8ddff89d90e00fadedda650fcf10f46a7a0767454c4e5cb"},"schema_version":"1.0"},"canonical_sha256":"2850de0808a22b43f2d60c296a53c85bd4472b3de9434ae92f0218b7a364ea72","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:13:25.334428Z","signature_b64":"4IsPPO/BHOaQs6FQyStCBdBVxqrlVmaEhcZ4lDL7JvPCr6vc3irnFs3xVKbhMdgkwIxZxb7Xrr64galgQezfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2850de0808a22b43f2d60c296a53c85bd4472b3de9434ae92f0218b7a364ea72","last_reissued_at":"2026-07-05T10:13:25.333929Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:13:25.333929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.08616","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:13:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SpQrzBvVQMFt20ivSHYdMcmi/hTYi+GKxu/GHonV3efKNeRFrcTKk6RKziXkl/zWYFkIiFjSgtdP6LZqz3AtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T07:38:32.189790Z"},"content_sha256":"df0537315ed39c76ec3f3826a594f1ef406e50d87f89de01e991021618a326b0","schema_version":"1.0","event_id":"sha256:df0537315ed39c76ec3f3826a594f1ef406e50d87f89de01e991021618a326b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:FBIN4CAIUIVUH4WWBQUWUU6ILP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient passivation of III-As(P) photonic interfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.optics","authors_text":"Alexander Huck, Aurimas Sakanas, Elizaveta Semenova, Emilia Zi\\k{e}ba-Ost\\'oj, Jan Miko{\\l}aj \\'Smigiel, Kresten Yvind, Marcin Syperek, Pawe{\\l} Holewa, Pawe{\\l} Mrowi\\'nski, Yury Berdnikov","submitted_at":"2025-02-12T18:12:14Z","abstract_excerpt":"Surface effects can significantly impact the performance of nanophotonic and quantum photonic devices, especially as the device dimensions are reduced. In this work, we propose and investigate a novel approach to surface passivation to mitigate these challenges in photonic nanostructures with III-As(P) quantum wells defined by a dry etching process. The nanostructures are annealed under the phosphine (PH$_3$) ambient inside a metal-organic vapor phase epitaxy chamber to eliminate surface and subsurface defects induced during the dry etching and subsequent oxidation of the etched sidewalls. Mor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.08616","kind":"arxiv","version":1},"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/2502.08616/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":"2026-07-05T10:13:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ovOo2MRCne4JN80H+b4g+9OfYcPDx4pLcnNuEjwNSAB/J3crD2GfFEX3supOmRZNp10Xqp2EQv028WFayeh+Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T07:38:32.190393Z"},"content_sha256":"80788269f4ba7150be9a629e079693ed5c972a2badd2aee6473afb6ac95a5cf6","schema_version":"1.0","event_id":"sha256:80788269f4ba7150be9a629e079693ed5c972a2badd2aee6473afb6ac95a5cf6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP/bundle.json","state_url":"https://pith.science/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP/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":"2026-08-11T07:38:32Z","links":{"resolver":"https://pith.science/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP","bundle":"https://pith.science/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP/bundle.json","state":"https://pith.science/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FBIN4CAIUIVUH4WWBQUWUU6ILP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FBIN4CAIUIVUH4WWBQUWUU6ILP","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":"3343ca36d0ac8396a8ddff89d90e00fadedda650fcf10f46a7a0767454c4e5cb","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-12T18:12:14Z","title_canon_sha256":"5d85bdf1dcefde1fc89573df780a75f2432c4039e71b4e7bab46f7f779643c5d"},"schema_version":"1.0","source":{"id":"2502.08616","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.08616","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"arxiv_version","alias_value":"2502.08616v1","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.08616","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"pith_short_12","alias_value":"FBIN4CAIUIVU","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"pith_short_16","alias_value":"FBIN4CAIUIVUH4WW","created_at":"2026-07-05T10:13:25Z"},{"alias_kind":"pith_short_8","alias_value":"FBIN4CAI","created_at":"2026-07-05T10:13:25Z"}],"graph_snapshots":[{"event_id":"sha256:80788269f4ba7150be9a629e079693ed5c972a2badd2aee6473afb6ac95a5cf6","target":"graph","created_at":"2026-07-05T10:13:25Z","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/2502.08616/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Surface effects can significantly impact the performance of nanophotonic and quantum photonic devices, especially as the device dimensions are reduced. In this work, we propose and investigate a novel approach to surface passivation to mitigate these challenges in photonic nanostructures with III-As(P) quantum wells defined by a dry etching process. The nanostructures are annealed under the phosphine (PH$_3$) ambient inside a metal-organic vapor phase epitaxy chamber to eliminate surface and subsurface defects induced during the dry etching and subsequent oxidation of the etched sidewalls. Mor","authors_text":"Alexander Huck, Aurimas Sakanas, Elizaveta Semenova, Emilia Zi\\k{e}ba-Ost\\'oj, Jan Miko{\\l}aj \\'Smigiel, Kresten Yvind, Marcin Syperek, Pawe{\\l} Holewa, Pawe{\\l} Mrowi\\'nski, Yury Berdnikov","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-12T18:12:14Z","title":"Efficient passivation of III-As(P) photonic interfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.08616","kind":"arxiv","version":1},"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:df0537315ed39c76ec3f3826a594f1ef406e50d87f89de01e991021618a326b0","target":"record","created_at":"2026-07-05T10:13:25Z","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":"3343ca36d0ac8396a8ddff89d90e00fadedda650fcf10f46a7a0767454c4e5cb","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-12T18:12:14Z","title_canon_sha256":"5d85bdf1dcefde1fc89573df780a75f2432c4039e71b4e7bab46f7f779643c5d"},"schema_version":"1.0","source":{"id":"2502.08616","kind":"arxiv","version":1}},"canonical_sha256":"2850de0808a22b43f2d60c296a53c85bd4472b3de9434ae92f0218b7a364ea72","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2850de0808a22b43f2d60c296a53c85bd4472b3de9434ae92f0218b7a364ea72","first_computed_at":"2026-07-05T10:13:25.333929Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:13:25.333929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4IsPPO/BHOaQs6FQyStCBdBVxqrlVmaEhcZ4lDL7JvPCr6vc3irnFs3xVKbhMdgkwIxZxb7Xrr64galgQezfBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:13:25.334428Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.08616","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df0537315ed39c76ec3f3826a594f1ef406e50d87f89de01e991021618a326b0","sha256:80788269f4ba7150be9a629e079693ed5c972a2badd2aee6473afb6ac95a5cf6"],"state_sha256":"6c6f3d364310644f1bcde521d534d4d176659297eee866893262b6eecd77229e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gWnmBXXRl2LOtYCKs2MxkiCd26BArTyHUZuOaI+nu5k+oSkIfYC81CxhsWzqyyLJHNjFgQUpHY/GKHnECE9cDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T07:38:32.195127Z","bundle_sha256":"e1aaa53bc2239f902f5e2c77933482d6bf23c1b18c34db28b6525138f71f8272"}}