{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:W6EFXY75AHWG6LUYGOH3G5EZ4U","short_pith_number":"pith:W6EFXY75","canonical_record":{"source":{"id":"2501.05900","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-10T11:52:43Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"4caf91f98892c90f69d249a6c8ec03dc854a6b7fad4adabb3d3c6970bcb39157","abstract_canon_sha256":"bf7331c38a3ea793aea9c8d3de5c1b3dc28dc38b58846807eb16968e2f9d977b"},"schema_version":"1.0"},"canonical_sha256":"b7885be3fd01ec6f2e98338fb37499e50e4c78cb34699ca676ef6723ee35c7e0","source":{"kind":"arxiv","id":"2501.05900","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.05900","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"arxiv_version","alias_value":"2501.05900v3","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.05900","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"pith_short_12","alias_value":"W6EFXY75AHWG","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"pith_short_16","alias_value":"W6EFXY75AHWG6LUY","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"pith_short_8","alias_value":"W6EFXY75","created_at":"2026-07-05T10:41:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:W6EFXY75AHWG6LUYGOH3G5EZ4U","target":"record","payload":{"canonical_record":{"source":{"id":"2501.05900","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-10T11:52:43Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"4caf91f98892c90f69d249a6c8ec03dc854a6b7fad4adabb3d3c6970bcb39157","abstract_canon_sha256":"bf7331c38a3ea793aea9c8d3de5c1b3dc28dc38b58846807eb16968e2f9d977b"},"schema_version":"1.0"},"canonical_sha256":"b7885be3fd01ec6f2e98338fb37499e50e4c78cb34699ca676ef6723ee35c7e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:41:19.605807Z","signature_b64":"+wsJ40tevjJWvjgMVgzQ+PCsFjw6QVvV6jV9OJx+M3VYGw1+tWj9D5M8oofbxDXmt7TV6uBW56CAYcjpTbMxBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7885be3fd01ec6f2e98338fb37499e50e4c78cb34699ca676ef6723ee35c7e0","last_reissued_at":"2026-07-05T10:41:19.605285Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:41:19.605285Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.05900","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:41:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3nrlXp0bNyzJG78MIZFsvWVbMed+PEyZam7m5PN9A2B3MdlJmQZZcfR0t2pRcLWXo/vOIsUJ5SAQkBPrxKazCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T22:44:18.712186Z"},"content_sha256":"93bd50487b50f44e0660b460a5c1ce814f9ed71214dd1003b642a2dd74c74ac5","schema_version":"1.0","event_id":"sha256:93bd50487b50f44e0660b460a5c1ce814f9ed71214dd1003b642a2dd74c74ac5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:W6EFXY75AHWG6LUYGOH3G5EZ4U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inverse Design of 3D Nanophotonic Devices with Structural Integrity Using Auxiliary Thermal Solvers","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.optics","authors_text":"Carsten Rockstuhl, Oliver Kuster, Roberto Narv\\'aez Hern\\'andez, Thomas Jebb Sturges, Yannick Augenstein","submitted_at":"2025-01-10T11:52:43Z","abstract_excerpt":"3D additive manufacturing enables the fabrication of nanophotonic structures with subwavelength features that control light across macroscopic scales. Gradient-based optimization offers an efficient approach to design these complex and non-intuitive structures. However, expanding this methodology from 2D to 3D introduces complexities, such as the need for structural integrity and connectivity. This work introduces a multi-objective optimization method to address these challenges in 3D nanophotonic designs. Our method combines electromagnetic simulations with an auxiliary heat-diffusion solver "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.05900","kind":"arxiv","version":3},"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/2501.05900/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":"2026-07-05T10:41:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oOmwbzr9A/Vm4VRMBvY8C1oy2e8Wa4dxC5hcBjik8oZh7QGF56avR3Pjj1B1BaAP8D5nGhmF5v0U3Bmsu6iPAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T22:44:18.712701Z"},"content_sha256":"fb112e3edd44b0281f9ae9ca275b1ac49969681cee5585316e5e7b0b78ffb50d","schema_version":"1.0","event_id":"sha256:fb112e3edd44b0281f9ae9ca275b1ac49969681cee5585316e5e7b0b78ffb50d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U/bundle.json","state_url":"https://pith.science/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U/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":"2026-08-21T22:44:18Z","links":{"resolver":"https://pith.science/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U","bundle":"https://pith.science/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U/bundle.json","state":"https://pith.science/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W6EFXY75AHWG6LUYGOH3G5EZ4U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:W6EFXY75AHWG6LUYGOH3G5EZ4U","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":"bf7331c38a3ea793aea9c8d3de5c1b3dc28dc38b58846807eb16968e2f9d977b","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-10T11:52:43Z","title_canon_sha256":"4caf91f98892c90f69d249a6c8ec03dc854a6b7fad4adabb3d3c6970bcb39157"},"schema_version":"1.0","source":{"id":"2501.05900","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.05900","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"arxiv_version","alias_value":"2501.05900v3","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.05900","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"pith_short_12","alias_value":"W6EFXY75AHWG","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"pith_short_16","alias_value":"W6EFXY75AHWG6LUY","created_at":"2026-07-05T10:41:19Z"},{"alias_kind":"pith_short_8","alias_value":"W6EFXY75","created_at":"2026-07-05T10:41:19Z"}],"graph_snapshots":[{"event_id":"sha256:fb112e3edd44b0281f9ae9ca275b1ac49969681cee5585316e5e7b0b78ffb50d","target":"graph","created_at":"2026-07-05T10:41:19Z","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/2501.05900/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"3D additive manufacturing enables the fabrication of nanophotonic structures with subwavelength features that control light across macroscopic scales. Gradient-based optimization offers an efficient approach to design these complex and non-intuitive structures. However, expanding this methodology from 2D to 3D introduces complexities, such as the need for structural integrity and connectivity. This work introduces a multi-objective optimization method to address these challenges in 3D nanophotonic designs. Our method combines electromagnetic simulations with an auxiliary heat-diffusion solver ","authors_text":"Carsten Rockstuhl, Oliver Kuster, Roberto Narv\\'aez Hern\\'andez, Thomas Jebb Sturges, Yannick Augenstein","cross_cats":["physics.comp-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-10T11:52:43Z","title":"Inverse Design of 3D Nanophotonic Devices with Structural Integrity Using Auxiliary Thermal Solvers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.05900","kind":"arxiv","version":3},"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":"sha256:93bd50487b50f44e0660b460a5c1ce814f9ed71214dd1003b642a2dd74c74ac5","target":"record","created_at":"2026-07-05T10:41:19Z","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":"bf7331c38a3ea793aea9c8d3de5c1b3dc28dc38b58846807eb16968e2f9d977b","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-10T11:52:43Z","title_canon_sha256":"4caf91f98892c90f69d249a6c8ec03dc854a6b7fad4adabb3d3c6970bcb39157"},"schema_version":"1.0","source":{"id":"2501.05900","kind":"arxiv","version":3}},"canonical_sha256":"b7885be3fd01ec6f2e98338fb37499e50e4c78cb34699ca676ef6723ee35c7e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7885be3fd01ec6f2e98338fb37499e50e4c78cb34699ca676ef6723ee35c7e0","first_computed_at":"2026-07-05T10:41:19.605285Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:41:19.605285Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+wsJ40tevjJWvjgMVgzQ+PCsFjw6QVvV6jV9OJx+M3VYGw1+tWj9D5M8oofbxDXmt7TV6uBW56CAYcjpTbMxBw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:41:19.605807Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.05900","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93bd50487b50f44e0660b460a5c1ce814f9ed71214dd1003b642a2dd74c74ac5","sha256:fb112e3edd44b0281f9ae9ca275b1ac49969681cee5585316e5e7b0b78ffb50d"],"state_sha256":"8d8281e6db956284d73bfdbd7c09022b77a764342c18bc026a09f0bd212dbffc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CwPUDFYJ/p5hBoamDw7/igilixDpI4NQ4WbmDpjTMre8XhWMFEB0bUPEJXEjRY6+A3bFLAQcVJITGvoZd2tkCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T22:44:18.717722Z","bundle_sha256":"0d4cab00e761d24e8c26bf2ff184eb049b8b17bb75c5a37c9ed5a4e5689d7890"}}