{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IYLYEZKONZQJOH7N7PDI4FJX5L","short_pith_number":"pith:IYLYEZKO","canonical_record":{"source":{"id":"1506.08551","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-06-29T09:09:17Z","cross_cats_sorted":[],"title_canon_sha256":"b2fa5e3f4e70adc9fd5803e2af3b1cc3879420b086e04ed4610f8da31b7685fd","abstract_canon_sha256":"b40508032390b589ee086966cc6ca2b43f2cdb62c71688d2fbaa82e766d3d85c"},"schema_version":"1.0"},"canonical_sha256":"461782654e6e60971fedfbc68e1537ead1f91d1f141d5685b934751aedda4817","source":{"kind":"arxiv","id":"1506.08551","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.08551","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"arxiv_version","alias_value":"1506.08551v1","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08551","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"pith_short_12","alias_value":"IYLYEZKONZQJ","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"IYLYEZKONZQJOH7N","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"IYLYEZKO","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IYLYEZKONZQJOH7N7PDI4FJX5L","target":"record","payload":{"canonical_record":{"source":{"id":"1506.08551","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-06-29T09:09:17Z","cross_cats_sorted":[],"title_canon_sha256":"b2fa5e3f4e70adc9fd5803e2af3b1cc3879420b086e04ed4610f8da31b7685fd","abstract_canon_sha256":"b40508032390b589ee086966cc6ca2b43f2cdb62c71688d2fbaa82e766d3d85c"},"schema_version":"1.0"},"canonical_sha256":"461782654e6e60971fedfbc68e1537ead1f91d1f141d5685b934751aedda4817","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:34.630584Z","signature_b64":"7MxFPY87uwtvqJFQAazWkX1Q3GiZqsFzJa9U2THrxO9nURftqHLu+gNabIXyPl2P58d2otJjSLyZLsJ6V19gDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"461782654e6e60971fedfbc68e1537ead1f91d1f141d5685b934751aedda4817","last_reissued_at":"2026-05-18T01:35:34.629781Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:34.629781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.08551","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":"2026-05-18T01:35:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d8ZyzUQ5sfd8HK/wcH4XMGF6kqICAISJxmNHO+s/ijpMSn+4m3yJdxPGKOqKgVIbYYW1/fo/NQYBA7WZ/EO4DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T14:47:11.584367Z"},"content_sha256":"8871950d202688b4ec8b3a99571cc3bd10ad839500cb20b3d7461c22ca296126","schema_version":"1.0","event_id":"sha256:8871950d202688b4ec8b3a99571cc3bd10ad839500cb20b3d7461c22ca296126"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IYLYEZKONZQJOH7N7PDI4FJX5L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vertical optical ring resonators fully integrated with nanophotonic waveguides on silicon-on-insulator substrates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Abbas Madani, David Stolarek, Lars Zimmermann, Libo Ma, Moritz Kleinert, Oliver G. Schmidt","submitted_at":"2015-06-29T09:09:17Z","abstract_excerpt":"We demonstrate full integration of vertical optical ring resonators with silicon nanophotonic waveguides on silicon-on-insulator substrates to accomplish a significant step towards 3D photonic integration. The on-chip integration is realized by rolling up 2D differentially strained TiO2 nanomembranes into 3D microtube cavities on a nanophotonic microchip. The integration configuration allows for out of plane optical coupling between the in-plane nanowaveguides and the vertical microtube cavities as a compact and mechanically stable optical unit, which could enable refined vertical light transf"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08551","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":""},"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":"2026-05-18T01:35:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MeIwfXLuT5Q1Zw67zFhIVZmKAGbQu7RqxcpcEiWvSrQ/y5WgIYoDZcQiBASK36CmY794+S08sjjzzyZpKNCkCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T14:47:11.584715Z"},"content_sha256":"067a20dc024821c9a6d12889a6075e662a609522baca365f52edc521d116a62a","schema_version":"1.0","event_id":"sha256:067a20dc024821c9a6d12889a6075e662a609522baca365f52edc521d116a62a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IYLYEZKONZQJOH7N7PDI4FJX5L/bundle.json","state_url":"https://pith.science/pith/IYLYEZKONZQJOH7N7PDI4FJX5L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IYLYEZKONZQJOH7N7PDI4FJX5L/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":"2026-06-24T14:47:11Z","links":{"resolver":"https://pith.science/pith/IYLYEZKONZQJOH7N7PDI4FJX5L","bundle":"https://pith.science/pith/IYLYEZKONZQJOH7N7PDI4FJX5L/bundle.json","state":"https://pith.science/pith/IYLYEZKONZQJOH7N7PDI4FJX5L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IYLYEZKONZQJOH7N7PDI4FJX5L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IYLYEZKONZQJOH7N7PDI4FJX5L","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":"b40508032390b589ee086966cc6ca2b43f2cdb62c71688d2fbaa82e766d3d85c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-06-29T09:09:17Z","title_canon_sha256":"b2fa5e3f4e70adc9fd5803e2af3b1cc3879420b086e04ed4610f8da31b7685fd"},"schema_version":"1.0","source":{"id":"1506.08551","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.08551","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"arxiv_version","alias_value":"1506.08551v1","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08551","created_at":"2026-05-18T01:35:34Z"},{"alias_kind":"pith_short_12","alias_value":"IYLYEZKONZQJ","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"IYLYEZKONZQJOH7N","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"IYLYEZKO","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:067a20dc024821c9a6d12889a6075e662a609522baca365f52edc521d116a62a","target":"graph","created_at":"2026-05-18T01:35:34Z","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"},"paper":{"abstract_excerpt":"We demonstrate full integration of vertical optical ring resonators with silicon nanophotonic waveguides on silicon-on-insulator substrates to accomplish a significant step towards 3D photonic integration. The on-chip integration is realized by rolling up 2D differentially strained TiO2 nanomembranes into 3D microtube cavities on a nanophotonic microchip. The integration configuration allows for out of plane optical coupling between the in-plane nanowaveguides and the vertical microtube cavities as a compact and mechanically stable optical unit, which could enable refined vertical light transf","authors_text":"Abbas Madani, David Stolarek, Lars Zimmermann, Libo Ma, Moritz Kleinert, Oliver G. Schmidt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-06-29T09:09:17Z","title":"Vertical optical ring resonators fully integrated with nanophotonic waveguides on silicon-on-insulator substrates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08551","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":"sha256:8871950d202688b4ec8b3a99571cc3bd10ad839500cb20b3d7461c22ca296126","target":"record","created_at":"2026-05-18T01:35:34Z","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":"b40508032390b589ee086966cc6ca2b43f2cdb62c71688d2fbaa82e766d3d85c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-06-29T09:09:17Z","title_canon_sha256":"b2fa5e3f4e70adc9fd5803e2af3b1cc3879420b086e04ed4610f8da31b7685fd"},"schema_version":"1.0","source":{"id":"1506.08551","kind":"arxiv","version":1}},"canonical_sha256":"461782654e6e60971fedfbc68e1537ead1f91d1f141d5685b934751aedda4817","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"461782654e6e60971fedfbc68e1537ead1f91d1f141d5685b934751aedda4817","first_computed_at":"2026-05-18T01:35:34.629781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:34.629781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7MxFPY87uwtvqJFQAazWkX1Q3GiZqsFzJa9U2THrxO9nURftqHLu+gNabIXyPl2P58d2otJjSLyZLsJ6V19gDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:34.630584Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.08551","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8871950d202688b4ec8b3a99571cc3bd10ad839500cb20b3d7461c22ca296126","sha256:067a20dc024821c9a6d12889a6075e662a609522baca365f52edc521d116a62a"],"state_sha256":"18a039e34bff82d578897fef95f2b3fc2bc628a7871dd78f28aef4e2e5667aee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q6aDHbfkoGVTJ1WEVo96+MMv4opSd/SZh7imqTVEGuBEQvNfM8OSa0wGZs3xvdz4il5Tp4gqxd0RuAoUPtyxBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T14:47:11.586659Z","bundle_sha256":"c406f5abc13b51373227d6145ed9991e10e2d98353588ab94b5d3bbed2621908"}}