{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DOIN6XCUNNBW5NOLSQXXHMO4Q2","short_pith_number":"pith:DOIN6XCU","canonical_record":{"source":{"id":"1803.03063","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T12:18:20Z","cross_cats_sorted":[],"title_canon_sha256":"2dfeec6681d930f307c82e89d1d3981f501a1da913986e1028ddbc0307ac6375","abstract_canon_sha256":"f205398e73dc6894076556a51eeaaee420d60a7dbdb6b4159a7e4bd7ab95faa3"},"schema_version":"1.0"},"canonical_sha256":"1b90df5c546b436eb5cb942f73b1dc86aeb281e719e3913a6024d1e30d39d1db","source":{"kind":"arxiv","id":"1803.03063","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.03063","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"arxiv_version","alias_value":"1803.03063v2","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.03063","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"pith_short_12","alias_value":"DOIN6XCUNNBW","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DOIN6XCUNNBW5NOL","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DOIN6XCU","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DOIN6XCUNNBW5NOLSQXXHMO4Q2","target":"record","payload":{"canonical_record":{"source":{"id":"1803.03063","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T12:18:20Z","cross_cats_sorted":[],"title_canon_sha256":"2dfeec6681d930f307c82e89d1d3981f501a1da913986e1028ddbc0307ac6375","abstract_canon_sha256":"f205398e73dc6894076556a51eeaaee420d60a7dbdb6b4159a7e4bd7ab95faa3"},"schema_version":"1.0"},"canonical_sha256":"1b90df5c546b436eb5cb942f73b1dc86aeb281e719e3913a6024d1e30d39d1db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:38.387911Z","signature_b64":"tkdH2HyibQpKFuVXpN1g+LXNbtBaBYfgQUGCImKnsDKobH0YDyG8II9OZXUlxshMyVAZraHef6hB9LiThATxAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b90df5c546b436eb5cb942f73b1dc86aeb281e719e3913a6024d1e30d39d1db","last_reissued_at":"2026-05-18T00:17:38.387397Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:38.387397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.03063","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:17:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+7ToaMA23Qlev+yuK1ye7O/Tx3VQBGgJ6QIB93SMelu5oJ6X3MZE0f3PJb7pLFEwuexfcRWqgY7l1BD9dcIICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:57:37.232391Z"},"content_sha256":"c44161c65786f4d7a3ee9aa61685a12784bf8b29c85de331c1b587f13cee2f60","schema_version":"1.0","event_id":"sha256:c44161c65786f4d7a3ee9aa61685a12784bf8b29c85de331c1b587f13cee2f60"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DOIN6XCUNNBW5NOLSQXXHMO4Q2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release Two and Three","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A.L. Lou, F. Wang, F. Zuo, H.F. Yang, H.L. Yuan, H. Xu, J.N. Zhang, J.Y. Yang, L.L. Wang, M.X. Wang, M. Yang, Q. Yang, W. Hou, X. Kong, Xue-Bing Wu, X.Y. Chen, X.Y. Dong, Y.B. Li, Y.L. Ai, Y. Wu, Y.X. Guo, Y.X. Zhang","submitted_at":"2018-03-08T12:18:20Z","abstract_excerpt":"This is the second installment for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey, which includes quasars observed from September 2013 to June 2015. There are 9024 confirmed quasars in DR2 and 10911 in DR3. After cross-match with the SDSS quasar catalogs and NED, 12126 quasars are discovered independently. Among them 2225 quasars were released by SDSS DR12 QSO catalogue in 2014 after we finalised the survey candidates. 1801 sources were identified by SDSS DR14 as QSOs. The remaining 8100 quasars are considered as newly founded, and among them 6887 quasars "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03063","kind":"arxiv","version":2},"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":"2026-05-18T00:17:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PqP2DQzQ9smamNTITNV9OzBEYFAJ9qCjraVVxqhrhlQ5cNoAeHUudoFugx70WnsJpDgyxXDvNBN1TrvAqUFJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:57:37.233139Z"},"content_sha256":"5121a38719f12b01e73d2ac092e84f94a42c72893bb048b142cc0a369067e547","schema_version":"1.0","event_id":"sha256:5121a38719f12b01e73d2ac092e84f94a42c72893bb048b142cc0a369067e547"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2/bundle.json","state_url":"https://pith.science/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2/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":"2026-05-29T21:57:37Z","links":{"resolver":"https://pith.science/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2","bundle":"https://pith.science/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2/bundle.json","state":"https://pith.science/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DOIN6XCUNNBW5NOLSQXXHMO4Q2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DOIN6XCUNNBW5NOLSQXXHMO4Q2","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":"f205398e73dc6894076556a51eeaaee420d60a7dbdb6b4159a7e4bd7ab95faa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T12:18:20Z","title_canon_sha256":"2dfeec6681d930f307c82e89d1d3981f501a1da913986e1028ddbc0307ac6375"},"schema_version":"1.0","source":{"id":"1803.03063","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.03063","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"arxiv_version","alias_value":"1803.03063v2","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.03063","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"pith_short_12","alias_value":"DOIN6XCUNNBW","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DOIN6XCUNNBW5NOL","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DOIN6XCU","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:5121a38719f12b01e73d2ac092e84f94a42c72893bb048b142cc0a369067e547","target":"graph","created_at":"2026-05-18T00:17:38Z","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":"This is the second installment for the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey, which includes quasars observed from September 2013 to June 2015. There are 9024 confirmed quasars in DR2 and 10911 in DR3. After cross-match with the SDSS quasar catalogs and NED, 12126 quasars are discovered independently. Among them 2225 quasars were released by SDSS DR12 QSO catalogue in 2014 after we finalised the survey candidates. 1801 sources were identified by SDSS DR14 as QSOs. The remaining 8100 quasars are considered as newly founded, and among them 6887 quasars ","authors_text":"A.L. Lou, F. Wang, F. Zuo, H.F. Yang, H.L. Yuan, H. Xu, J.N. Zhang, J.Y. Yang, L.L. Wang, M.X. Wang, M. Yang, Q. Yang, W. Hou, X. Kong, Xue-Bing Wu, X.Y. Chen, X.Y. Dong, Y.B. Li, Y.L. Ai, Y. Wu, Y.X. Guo, Y.X. Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T12:18:20Z","title":"The Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Release Two and Three"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.03063","kind":"arxiv","version":2},"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:c44161c65786f4d7a3ee9aa61685a12784bf8b29c85de331c1b587f13cee2f60","target":"record","created_at":"2026-05-18T00:17:38Z","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":"f205398e73dc6894076556a51eeaaee420d60a7dbdb6b4159a7e4bd7ab95faa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-03-08T12:18:20Z","title_canon_sha256":"2dfeec6681d930f307c82e89d1d3981f501a1da913986e1028ddbc0307ac6375"},"schema_version":"1.0","source":{"id":"1803.03063","kind":"arxiv","version":2}},"canonical_sha256":"1b90df5c546b436eb5cb942f73b1dc86aeb281e719e3913a6024d1e30d39d1db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b90df5c546b436eb5cb942f73b1dc86aeb281e719e3913a6024d1e30d39d1db","first_computed_at":"2026-05-18T00:17:38.387397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:38.387397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tkdH2HyibQpKFuVXpN1g+LXNbtBaBYfgQUGCImKnsDKobH0YDyG8II9OZXUlxshMyVAZraHef6hB9LiThATxAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:38.387911Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.03063","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c44161c65786f4d7a3ee9aa61685a12784bf8b29c85de331c1b587f13cee2f60","sha256:5121a38719f12b01e73d2ac092e84f94a42c72893bb048b142cc0a369067e547"],"state_sha256":"64c4f9248cec336979410508a1269f971e655f5229028e76e6df76dfa7241fa1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LYnVXn289I5ZAZEXcPDatWumnJtBWqLjt6rXhWQFxKn8Z3Bj9o4rQz/6a6KRFF/Q44CXZ/8YkMLxcyz3rOhgCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T21:57:37.236803Z","bundle_sha256":"73ec4848228d0c97b6b2766ee376fa7196a26bcb5d084b9a9a889b67aa151dba"}}