{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:22X523O7MG3XBNDAZURKZL2UII","short_pith_number":"pith:22X523O7","schema_version":"1.0","canonical_sha256":"d6afdd6ddf61b770b460cd22acaf5442061f0b81252aa0f7da6306e12e12fec1","source":{"kind":"arxiv","id":"1512.01099","version":1},"attestation_state":"computed","paper":{"title":"Tibet's Ali: Asia's Atacama?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Hong Li, Meng Su, Quan-Zhi Ye, Xinmin Zhang","submitted_at":"2015-12-03T14:53:40Z","abstract_excerpt":"The Ngari (Ali) prefecture of Tibet, one of the highest areas in the world, has recently emerged as a promising site for future astronomical observation. Here we use 31 years of reanalysis data from the Climate Forecast System Reanalysis (CFSR) to examine the astroclimatology of Ngari, using the recently-erected Ali Observatory at Shiquanhe (5~047~m above mean sea level) as the representative site. We find the percentage of photometric night, median atmospheric seeing and median precipitable water vapor (PWV) of the Shiquanhe site to be $57\\%$, $0.8\"$ and 2.5~mm, comparable some of the world's"},"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":"1512.01099","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-12-03T14:53:40Z","cross_cats_sorted":[],"title_canon_sha256":"47aa3110c5896e3b5b6278ac2ec2832531a47de4b41ea7c4ba6bccedd6e7e2ad","abstract_canon_sha256":"56be438aa84043409e698d724204a928dd872ca16e80b9b573665587c5d928c9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:51.304422Z","signature_b64":"lf2+yTwS0bTt0g3ETngzBCChwiDCAQum9wFDsn1627V9Fq43fiFvDswtbVPELd7G2+Mur+/9phbRLLu3zaKrBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d6afdd6ddf61b770b460cd22acaf5442061f0b81252aa0f7da6306e12e12fec1","last_reissued_at":"2026-05-18T01:21:51.303879Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:51.303879Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tibet's Ali: Asia's Atacama?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Hong Li, Meng Su, Quan-Zhi Ye, Xinmin Zhang","submitted_at":"2015-12-03T14:53:40Z","abstract_excerpt":"The Ngari (Ali) prefecture of Tibet, one of the highest areas in the world, has recently emerged as a promising site for future astronomical observation. Here we use 31 years of reanalysis data from the Climate Forecast System Reanalysis (CFSR) to examine the astroclimatology of Ngari, using the recently-erected Ali Observatory at Shiquanhe (5~047~m above mean sea level) as the representative site. We find the percentage of photometric night, median atmospheric seeing and median precipitable water vapor (PWV) of the Shiquanhe site to be $57\\%$, $0.8\"$ and 2.5~mm, comparable some of the world's"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.01099","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":"1512.01099","created_at":"2026-05-18T01:21:51.303969+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.01099v1","created_at":"2026-05-18T01:21:51.303969+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.01099","created_at":"2026-05-18T01:21:51.303969+00:00"},{"alias_kind":"pith_short_12","alias_value":"22X523O7MG3X","created_at":"2026-05-18T12:28:59.999130+00:00"},{"alias_kind":"pith_short_16","alias_value":"22X523O7MG3XBNDA","created_at":"2026-05-18T12:28:59.999130+00:00"},{"alias_kind":"pith_short_8","alias_value":"22X523O7","created_at":"2026-05-18T12:28:59.999130+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/22X523O7MG3XBNDAZURKZL2UII","json":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII.json","graph_json":"https://pith.science/api/pith-number/22X523O7MG3XBNDAZURKZL2UII/graph.json","events_json":"https://pith.science/api/pith-number/22X523O7MG3XBNDAZURKZL2UII/events.json","paper":"https://pith.science/paper/22X523O7"},"agent_actions":{"view_html":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII","download_json":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII.json","view_paper":"https://pith.science/paper/22X523O7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.01099&json=true","fetch_graph":"https://pith.science/api/pith-number/22X523O7MG3XBNDAZURKZL2UII/graph.json","fetch_events":"https://pith.science/api/pith-number/22X523O7MG3XBNDAZURKZL2UII/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII/action/timestamp_anchor","attest_storage":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII/action/storage_attestation","attest_author":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII/action/author_attestation","sign_citation":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII/action/citation_signature","submit_replication":"https://pith.science/pith/22X523O7MG3XBNDAZURKZL2UII/action/replication_record"}},"created_at":"2026-05-18T01:21:51.303969+00:00","updated_at":"2026-05-18T01:21:51.303969+00:00"}