{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:6LGOSTH3LCR2LPZEJE7N5TELOB","short_pith_number":"pith:6LGOSTH3","schema_version":"1.0","canonical_sha256":"f2cce94cfb58a3a5bf24493edecc8b70465f903d09d7dbc84d9dd51ce7f3bcf8","source":{"kind":"arxiv","id":"1707.01339","version":1},"attestation_state":"computed","paper":{"title":"Satellite-Based Entanglement Distribution Over 1200 kilometers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","physics.space-ph"],"primary_cat":"quant-ph","authors_text":"Bo Li, Chao-Yang Lu, Cheng-Zhi Peng, Dong He, Feng-Zhi Li, Ge Ren, Guang-Bing Li, Hui Dai, Jian-Jun Jia, Jian-Wei Pan, Jian-Yu Wang, Ji-Gang Ren, Juan Yin, Liang Zhang, Ming Li, Nai-Le Liu, Na Wang, Qi-Ming Lu, Rong Shu, Sheng-Kai Liao, Shuang-Lin Li, Wei-Yue Liu, Wen-Qi Cai, Xiang Chang, Xiao-Xiang Zhang, Ya-Yun Yin, Yi-Lin Zhou, Yuan Cao, Yu-Ao Chen, Yu-Huai Li, Yun-Hong Gong, Yu Xu, Zhen-Cai Zhu, Zi-Qing Jiang","submitted_at":"2017-07-05T12:02:04Z","abstract_excerpt":"Long-distance entanglement distribution is essential both for foundational tests of quantum physics and scalable quantum networks. Owing to channel loss, however, the previously achieved distance was limited to ~100 km. Here, we demonstrate satellite-based distribution of entangled photon pairs to two locations separated by 1203 km on the Earth, through satellite-to-ground two-downlink with a sum of length varies from 1600 km to 2400 km. We observe a survival of two-photon entanglement and a violation of Bell inequality by 2.37+/-0.09 under strict Einstein locality conditions. The obtained eff"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1707.01339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-05T12:02:04Z","cross_cats_sorted":["physics.optics","physics.space-ph"],"title_canon_sha256":"e73bfc1e2eeb8c7ac60c48060e6d3eabfe479058feb65503237a0ac49a90ed04","abstract_canon_sha256":"001ac463068730b678791a527e756bb7edf166216c7df034c2c589ae052b2e8e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:53.103857Z","signature_b64":"8LEHGfdGAWjzv3gaxRMG6TA1ikkcj7WAvO99myPwmc1jQCN8Tu7oH1d4vbAIT0uX6fy9ar+Drup+HwYIKqVFBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2cce94cfb58a3a5bf24493edecc8b70465f903d09d7dbc84d9dd51ce7f3bcf8","last_reissued_at":"2026-05-18T00:40:53.103281Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:53.103281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Satellite-Based Entanglement Distribution Over 1200 kilometers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","physics.space-ph"],"primary_cat":"quant-ph","authors_text":"Bo Li, Chao-Yang Lu, Cheng-Zhi Peng, Dong He, Feng-Zhi Li, Ge Ren, Guang-Bing Li, Hui Dai, Jian-Jun Jia, Jian-Wei Pan, Jian-Yu Wang, Ji-Gang Ren, Juan Yin, Liang Zhang, Ming Li, Nai-Le Liu, Na Wang, Qi-Ming Lu, Rong Shu, Sheng-Kai Liao, Shuang-Lin Li, Wei-Yue Liu, Wen-Qi Cai, Xiang Chang, Xiao-Xiang Zhang, Ya-Yun Yin, Yi-Lin Zhou, Yuan Cao, Yu-Ao Chen, Yu-Huai Li, Yun-Hong Gong, Yu Xu, Zhen-Cai Zhu, Zi-Qing Jiang","submitted_at":"2017-07-05T12:02:04Z","abstract_excerpt":"Long-distance entanglement distribution is essential both for foundational tests of quantum physics and scalable quantum networks. Owing to channel loss, however, the previously achieved distance was limited to ~100 km. Here, we demonstrate satellite-based distribution of entangled photon pairs to two locations separated by 1203 km on the Earth, through satellite-to-ground two-downlink with a sum of length varies from 1600 km to 2400 km. We observe a survival of two-photon entanglement and a violation of Bell inequality by 2.37+/-0.09 under strict Einstein locality conditions. The obtained eff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.01339","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1707.01339","created_at":"2026-05-18T00:40:53.103390+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.01339v1","created_at":"2026-05-18T00:40:53.103390+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.01339","created_at":"2026-05-18T00:40:53.103390+00:00"},{"alias_kind":"pith_short_12","alias_value":"6LGOSTH3LCR2","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_16","alias_value":"6LGOSTH3LCR2LPZE","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_8","alias_value":"6LGOSTH3","created_at":"2026-05-18T12:31:03.183658+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB","json":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB.json","graph_json":"https://pith.science/api/pith-number/6LGOSTH3LCR2LPZEJE7N5TELOB/graph.json","events_json":"https://pith.science/api/pith-number/6LGOSTH3LCR2LPZEJE7N5TELOB/events.json","paper":"https://pith.science/paper/6LGOSTH3"},"agent_actions":{"view_html":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB","download_json":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB.json","view_paper":"https://pith.science/paper/6LGOSTH3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.01339&json=true","fetch_graph":"https://pith.science/api/pith-number/6LGOSTH3LCR2LPZEJE7N5TELOB/graph.json","fetch_events":"https://pith.science/api/pith-number/6LGOSTH3LCR2LPZEJE7N5TELOB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB/action/storage_attestation","attest_author":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB/action/author_attestation","sign_citation":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB/action/citation_signature","submit_replication":"https://pith.science/pith/6LGOSTH3LCR2LPZEJE7N5TELOB/action/replication_record"}},"created_at":"2026-05-18T00:40:53.103390+00:00","updated_at":"2026-05-18T00:40:53.103390+00:00"}