{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:WNEAVXVSZCWZJXHJ6JTH63SCVM","short_pith_number":"pith:WNEAVXVS","canonical_record":{"source":{"id":"1812.11666","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-31T02:09:58Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"07db9d94e3945424cab077c4bcb9add485f5f6a7ea626758be449d32770db630","abstract_canon_sha256":"047e109396a50e3b3ffd35b811a109f4e54bc803623db2cf2fc113347820e373"},"schema_version":"1.0"},"canonical_sha256":"b3480adeb2c8ad94dce9f2667f6e42ab349f023017b6aee3d3178e268128cb19","source":{"kind":"arxiv","id":"1812.11666","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.11666","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"arxiv_version","alias_value":"1812.11666v1","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.11666","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"pith_short_12","alias_value":"WNEAVXVSZCWZ","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WNEAVXVSZCWZJXHJ","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WNEAVXVS","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:WNEAVXVSZCWZJXHJ6JTH63SCVM","target":"record","payload":{"canonical_record":{"source":{"id":"1812.11666","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-31T02:09:58Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"07db9d94e3945424cab077c4bcb9add485f5f6a7ea626758be449d32770db630","abstract_canon_sha256":"047e109396a50e3b3ffd35b811a109f4e54bc803623db2cf2fc113347820e373"},"schema_version":"1.0"},"canonical_sha256":"b3480adeb2c8ad94dce9f2667f6e42ab349f023017b6aee3d3178e268128cb19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:11.403257Z","signature_b64":"lfhCbXtS+v/xQIs89fIjzFX9XyUekIw4fK4DjK1yX6As5VZatf0ziG73B8xOt+hvVHCqhNleYBxQeLd1Y2mRBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3480adeb2c8ad94dce9f2667f6e42ab349f023017b6aee3d3178e268128cb19","last_reissued_at":"2026-05-17T23:57:11.402848Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:11.402848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.11666","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":"2026-05-17T23:57:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8HmCvNEBJBGiZwb3ky30KQVKXO62nvn7NvtlOlmyeg7CEo/vYGblVsO3hb6OSvvRULrTjsLWV+3cnxePIi2HDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:17:09.044900Z"},"content_sha256":"7062768cd54bbfc4086b9b36df40f488dc291a3d61670b3b424f4b81afe185be","schema_version":"1.0","event_id":"sha256:7062768cd54bbfc4086b9b36df40f488dc291a3d61670b3b424f4b81afe185be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:WNEAVXVSZCWZJXHJ6JTH63SCVM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum-dot single-photon source on a CMOS silicon photonic chip integrated using transfer printing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.app-ph","authors_text":"Alto Osada, Hidefumi Akiyama, Masahiro Kakuda, Ryota Katsumi, Satoshi Iwamoto, Takeyoshi Tajiri, Takuto Yamaguchi, Yasuhiko Arakawa, Yasutomo Ota","submitted_at":"2018-12-31T02:09:58Z","abstract_excerpt":"Silicon photonics is a powerful platform for implementing large-scale photonic integrated circuits (PICs), because of its compatibility with mature complementary-metal-oxide-semiconductor (CMOS) technology. Exploiting silicon-based PICs for quantum photonic information processing (or the so-called silicon quantum photonics) provides a promising pathway for large-scale quantum applications. For the development of scalable silicon quantum PICs, a major challenge is integrating on-silicon quantum light sources that deterministically emit single photons. In this regard, the use of epitaxial InAs/G"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.11666","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":"2026-05-17T23:57:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WxMe0CUsMV9CGtaTS9WWaHAfSBJND4B41hfL6MNDo8IPOmnj5TmHFoBrazJhJbAi8p+2MWm/PrRW+NEKky0UBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:17:09.045590Z"},"content_sha256":"91fd2335834334a2ffb1b572e372dde033923dd0723cedc800a722f60640aec5","schema_version":"1.0","event_id":"sha256:91fd2335834334a2ffb1b572e372dde033923dd0723cedc800a722f60640aec5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM/bundle.json","state_url":"https://pith.science/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM/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":"2026-06-06T15:17:09Z","links":{"resolver":"https://pith.science/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM","bundle":"https://pith.science/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM/bundle.json","state":"https://pith.science/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WNEAVXVSZCWZJXHJ6JTH63SCVM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WNEAVXVSZCWZJXHJ6JTH63SCVM","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":"047e109396a50e3b3ffd35b811a109f4e54bc803623db2cf2fc113347820e373","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-31T02:09:58Z","title_canon_sha256":"07db9d94e3945424cab077c4bcb9add485f5f6a7ea626758be449d32770db630"},"schema_version":"1.0","source":{"id":"1812.11666","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.11666","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"arxiv_version","alias_value":"1812.11666v1","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.11666","created_at":"2026-05-17T23:57:11Z"},{"alias_kind":"pith_short_12","alias_value":"WNEAVXVSZCWZ","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WNEAVXVSZCWZJXHJ","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WNEAVXVS","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:91fd2335834334a2ffb1b572e372dde033923dd0723cedc800a722f60640aec5","target":"graph","created_at":"2026-05-17T23:57:11Z","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":"Silicon photonics is a powerful platform for implementing large-scale photonic integrated circuits (PICs), because of its compatibility with mature complementary-metal-oxide-semiconductor (CMOS) technology. Exploiting silicon-based PICs for quantum photonic information processing (or the so-called silicon quantum photonics) provides a promising pathway for large-scale quantum applications. For the development of scalable silicon quantum PICs, a major challenge is integrating on-silicon quantum light sources that deterministically emit single photons. In this regard, the use of epitaxial InAs/G","authors_text":"Alto Osada, Hidefumi Akiyama, Masahiro Kakuda, Ryota Katsumi, Satoshi Iwamoto, Takeyoshi Tajiri, Takuto Yamaguchi, Yasuhiko Arakawa, Yasutomo Ota","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-31T02:09:58Z","title":"Quantum-dot single-photon source on a CMOS silicon photonic chip integrated using transfer printing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.11666","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":"sha256:7062768cd54bbfc4086b9b36df40f488dc291a3d61670b3b424f4b81afe185be","target":"record","created_at":"2026-05-17T23:57:11Z","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":"047e109396a50e3b3ffd35b811a109f4e54bc803623db2cf2fc113347820e373","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-12-31T02:09:58Z","title_canon_sha256":"07db9d94e3945424cab077c4bcb9add485f5f6a7ea626758be449d32770db630"},"schema_version":"1.0","source":{"id":"1812.11666","kind":"arxiv","version":1}},"canonical_sha256":"b3480adeb2c8ad94dce9f2667f6e42ab349f023017b6aee3d3178e268128cb19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3480adeb2c8ad94dce9f2667f6e42ab349f023017b6aee3d3178e268128cb19","first_computed_at":"2026-05-17T23:57:11.402848Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:11.402848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lfhCbXtS+v/xQIs89fIjzFX9XyUekIw4fK4DjK1yX6As5VZatf0ziG73B8xOt+hvVHCqhNleYBxQeLd1Y2mRBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:11.403257Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.11666","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7062768cd54bbfc4086b9b36df40f488dc291a3d61670b3b424f4b81afe185be","sha256:91fd2335834334a2ffb1b572e372dde033923dd0723cedc800a722f60640aec5"],"state_sha256":"9f0a6f9eb38e9302ae06e38f50246a2a2eb43b24eb9af9aa26e95fcc05d4cb9e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ee/E4pHJkH06Y94GhV5FlHmRGOd/agcxWQ19K4AFhQ7LOe9gRl0QEQyJ/EXTRfS0IyMLmZR+nWziwZdQ2t2xBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:17:09.049046Z","bundle_sha256":"e53cfbe631d417bafb8f00bf2816675070f156cc2db3d0e96b0046793972cb45"}}