{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:X4PAJS6OZ64JBTR5BLYDZ5M7IG","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":"9e4d870c4337f3683a759c0feadd0385d5324cd73efa36f5776d6a964735331b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-07-11T05:09:35Z","title_canon_sha256":"a212c88ca8845426d2e8f1d7ff9729624590b4603bfe8c25b0fceaab89f21f4b"},"schema_version":"1.0","source":{"id":"1707.03131","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03131","created_at":"2026-05-18T00:28:06Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03131v3","created_at":"2026-05-18T00:28:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03131","created_at":"2026-05-18T00:28:06Z"},{"alias_kind":"pith_short_12","alias_value":"X4PAJS6OZ64J","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"X4PAJS6OZ64JBTR5","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"X4PAJS6O","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:f35f4ecd1632adab987071fdc60e2a40748e6c513dea30436a9040461f0a5221","target":"graph","created_at":"2026-05-18T00:28:06Z","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":"A highly pure and stable single-photon source is prepared that comprises a well-designed pillar array in which each pillar contains only a few InAs quantum dots. A nano-pillar in this array is in direct contact with a fiber end surface and cooled in a liquid-He bath. Auto-correlation measurement shows that this source provides an average $g^{(2)}(0)$ value of 0.0174 in the measured excitation-power range. This photon source and fiber coupling are quite rigid against external disturbances such as cooling-heating cycles and vibration, with long-term stability.","authors_text":"Hideaki Nakajima, Hidekazu Kumano, Hirotaka Sasakura, Satoru Odashima","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-07-11T05:09:35Z","title":"Fiber-coupled pillar array as a highly pure and stable single-photon source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03131","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":"sha256:80eac0afd047323443bd6065854ab7657d43cfcb9c3e613409dd37e4d577d01b","target":"record","created_at":"2026-05-18T00:28:06Z","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":"9e4d870c4337f3683a759c0feadd0385d5324cd73efa36f5776d6a964735331b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-07-11T05:09:35Z","title_canon_sha256":"a212c88ca8845426d2e8f1d7ff9729624590b4603bfe8c25b0fceaab89f21f4b"},"schema_version":"1.0","source":{"id":"1707.03131","kind":"arxiv","version":3}},"canonical_sha256":"bf1e04cbcecfb890ce3d0af03cf59f41acb3b7508e74685864942c03ab2ad5b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf1e04cbcecfb890ce3d0af03cf59f41acb3b7508e74685864942c03ab2ad5b3","first_computed_at":"2026-05-18T00:28:06.899239Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:06.899239Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xhXlmS+MYRULsAPHGnUTDKuf/enMv489NALH8IQLxp72Fvw7kMlgIRnx6THaKbvgbPHngxX3Cch75T7cJ/cBDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:06.899920Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.03131","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80eac0afd047323443bd6065854ab7657d43cfcb9c3e613409dd37e4d577d01b","sha256:f35f4ecd1632adab987071fdc60e2a40748e6c513dea30436a9040461f0a5221"],"state_sha256":"99b816cc352bff7a6e5aaafba0c34ab662456dc05c8c8064afcd36fdb4297814"}