{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:IOLHMRGCEZ5NG3NKX3WJ72YNLP","short_pith_number":"pith:IOLHMRGC","canonical_record":{"source":{"id":"2505.08997","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-13T22:20:45Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"709097b8ee0a16af9355d1eb73fc1e9ff4743a2ae8d39c6b29e5254489f4984d","abstract_canon_sha256":"6708311935815a2731cf3cc0f81f96a29cff58410023584c6ed744d6010a059a"},"schema_version":"1.0"},"canonical_sha256":"43967644c2267ad36daabeec9feb0d5bf4cb98632785d5c9cc331a0db9f14974","source":{"kind":"arxiv","id":"2505.08997","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.08997","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"arxiv_version","alias_value":"2505.08997v1","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.08997","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"pith_short_12","alias_value":"IOLHMRGCEZ5N","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"pith_short_16","alias_value":"IOLHMRGCEZ5NG3NK","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"pith_short_8","alias_value":"IOLHMRGC","created_at":"2026-07-05T11:02:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:IOLHMRGCEZ5NG3NKX3WJ72YNLP","target":"record","payload":{"canonical_record":{"source":{"id":"2505.08997","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-13T22:20:45Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"709097b8ee0a16af9355d1eb73fc1e9ff4743a2ae8d39c6b29e5254489f4984d","abstract_canon_sha256":"6708311935815a2731cf3cc0f81f96a29cff58410023584c6ed744d6010a059a"},"schema_version":"1.0"},"canonical_sha256":"43967644c2267ad36daabeec9feb0d5bf4cb98632785d5c9cc331a0db9f14974","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:02:48.501465Z","signature_b64":"HfnygUCp1h4b7KXU9WJM3cHAiCg+t2n/qsQ+rQjqUaRhu5cc3YoT1SEkvziwWid72mYcDyscy2ANYnldIoHSCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43967644c2267ad36daabeec9feb0d5bf4cb98632785d5c9cc331a0db9f14974","last_reissued_at":"2026-07-05T11:02:48.501002Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:02:48.501002Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.08997","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":"2026-07-05T11:02:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3cQYNc0jyT31W5/GwRBBD8dTlRwhGwUr0fcZu68iDjVmShPacA6f0QUBHibjxHsbwnKMCTJgh7iK43cTorvZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:33:31.813953Z"},"content_sha256":"f3c5fcbc520c9875909fe8013b0c352aa3bc6cf11ffd4b774601d4d4ccdf1031","schema_version":"1.0","event_id":"sha256:f3c5fcbc520c9875909fe8013b0c352aa3bc6cf11ffd4b774601d4d4ccdf1031"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:IOLHMRGCEZ5NG3NKX3WJ72YNLP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scalable Trapped Ion Addressing with Adjoint-optimized Multimode Photonic Circuits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Bingran You, Hartmut H\\\"affner, Ke Sun, Maxim Radikovich Shcherbakov, Melika Momenzadeh, Qiming Wu, Yu-Lung Tang","submitted_at":"2025-05-13T22:20:45Z","abstract_excerpt":"Trapped-ion quantum computing requires precise optical control for individual qubit manipulation. However, conventional free-space optics face challenges in alignment stability and scalability as the number of qubits increases. Integrated photonics offers a promising alternative, providing miniaturized optical systems on a chip. Here, we propose a design for a multimode photonic circuit integrated with a surface-electrode ion trap capable of targeted and reconfigurable light delivery. Three closely positioned ions can be addressed using a focusing grating coupler that emits multimode light thr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.08997","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/2505.08997/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":"2026-07-05T11:02:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wRjB2RAiObR/KBCeLtAJlynAzrnsFD0SAj9teLDZaDj9MYoNdiRms3eIJhwt/ojV5p2+h+lxrkcq2fUbaeNrBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:33:31.815011Z"},"content_sha256":"680a039d525c2f514181df8389c6a3fe97a95bb46675b7cda16818f6c5e2f22f","schema_version":"1.0","event_id":"sha256:680a039d525c2f514181df8389c6a3fe97a95bb46675b7cda16818f6c5e2f22f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP/bundle.json","state_url":"https://pith.science/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP/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":"2026-08-06T02:33:31Z","links":{"resolver":"https://pith.science/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP","bundle":"https://pith.science/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP/bundle.json","state":"https://pith.science/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IOLHMRGCEZ5NG3NKX3WJ72YNLP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IOLHMRGCEZ5NG3NKX3WJ72YNLP","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":"6708311935815a2731cf3cc0f81f96a29cff58410023584c6ed744d6010a059a","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-13T22:20:45Z","title_canon_sha256":"709097b8ee0a16af9355d1eb73fc1e9ff4743a2ae8d39c6b29e5254489f4984d"},"schema_version":"1.0","source":{"id":"2505.08997","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.08997","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"arxiv_version","alias_value":"2505.08997v1","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.08997","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"pith_short_12","alias_value":"IOLHMRGCEZ5N","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"pith_short_16","alias_value":"IOLHMRGCEZ5NG3NK","created_at":"2026-07-05T11:02:48Z"},{"alias_kind":"pith_short_8","alias_value":"IOLHMRGC","created_at":"2026-07-05T11:02:48Z"}],"graph_snapshots":[{"event_id":"sha256:680a039d525c2f514181df8389c6a3fe97a95bb46675b7cda16818f6c5e2f22f","target":"graph","created_at":"2026-07-05T11:02:48Z","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/2505.08997/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Trapped-ion quantum computing requires precise optical control for individual qubit manipulation. However, conventional free-space optics face challenges in alignment stability and scalability as the number of qubits increases. Integrated photonics offers a promising alternative, providing miniaturized optical systems on a chip. Here, we propose a design for a multimode photonic circuit integrated with a surface-electrode ion trap capable of targeted and reconfigurable light delivery. Three closely positioned ions can be addressed using a focusing grating coupler that emits multimode light thr","authors_text":"Bingran You, Hartmut H\\\"affner, Ke Sun, Maxim Radikovich Shcherbakov, Melika Momenzadeh, Qiming Wu, Yu-Lung Tang","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-13T22:20:45Z","title":"Scalable Trapped Ion Addressing with Adjoint-optimized Multimode Photonic Circuits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.08997","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:f3c5fcbc520c9875909fe8013b0c352aa3bc6cf11ffd4b774601d4d4ccdf1031","target":"record","created_at":"2026-07-05T11:02:48Z","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":"6708311935815a2731cf3cc0f81f96a29cff58410023584c6ed744d6010a059a","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-05-13T22:20:45Z","title_canon_sha256":"709097b8ee0a16af9355d1eb73fc1e9ff4743a2ae8d39c6b29e5254489f4984d"},"schema_version":"1.0","source":{"id":"2505.08997","kind":"arxiv","version":1}},"canonical_sha256":"43967644c2267ad36daabeec9feb0d5bf4cb98632785d5c9cc331a0db9f14974","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43967644c2267ad36daabeec9feb0d5bf4cb98632785d5c9cc331a0db9f14974","first_computed_at":"2026-07-05T11:02:48.501002Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:02:48.501002Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HfnygUCp1h4b7KXU9WJM3cHAiCg+t2n/qsQ+rQjqUaRhu5cc3YoT1SEkvziwWid72mYcDyscy2ANYnldIoHSCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:02:48.501465Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.08997","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3c5fcbc520c9875909fe8013b0c352aa3bc6cf11ffd4b774601d4d4ccdf1031","sha256:680a039d525c2f514181df8389c6a3fe97a95bb46675b7cda16818f6c5e2f22f"],"state_sha256":"2c1e7ad07a1d995457cc07c8402207ee99765d4562c759275ff5f8098c7106ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Aw68XLubaGKqTGESx2XD0Q9sCYenhTG4TvXSsLbJSfgGq3cLoG3hvIc3o4Vp95mIq3JQH5wao8oSlZK4SNqHAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T02:33:31.820219Z","bundle_sha256":"eda9a0e4fb120266a1b52941efd93b44f02176b29cac6e6759887217b5cddf96"}}