{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:UL7IWDWE4O43MLIUD4HVNMHTLL","short_pith_number":"pith:UL7IWDWE","schema_version":"1.0","canonical_sha256":"a2fe8b0ec4e3b9b62d141f0f56b0f35ac1abd80fde59e6bd3600803df046d5c8","source":{"kind":"arxiv","id":"1607.06152","version":1},"attestation_state":"computed","paper":{"title":"Physical parameter study of eight W Ursae Majoris-type contact binaries in NGC 188","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Changqing Luo, Jianfeng Tian, Jinjiang Sun, Kun Wang, Licai Deng, Qiang Zhou, Qili Liu, Richard de Grijs, Xiaobin Zhang, Xiaodian Chen, Yu Xin, Zhengzhou Yan, Zhiquan Luo","submitted_at":"2016-07-20T23:19:47Z","abstract_excerpt":"We used the newly commissioned 50 cm Binocular Network (50BiN) telescope at Qinghai Station of Purple Mountain Observatory (Chinese Academy of Sciences) to observe the old open cluster NGC 188 in V and R as part of a search for variable objects. Our time-series data span a total of 36 days. Radial velocity and proper-motion selection resulted in a sample of 532 genuine cluster members. Isochrone fitting was applied to the cleaned cluster sequence, yielding a distance modulus of (m - M)0V = 11.35 \\pm 0.10 mag and a total foreground reddening of E(V - R) = 0.062 \\pm 0.002 mag. Light-curve soluti"},"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":"1607.06152","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-20T23:19:47Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"27d3038a22a9dd23159ad8667110cda6de3b540d1234c247932d4a7aa7e59fe4","abstract_canon_sha256":"3e195a427e8e5c3ed937434d7d7b6c2bd4125c0cc44c4dd1a1f8c6a4e512ca58"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:22.983733Z","signature_b64":"DX/xcAEePeccmO5/Us4cHVBG825ptghmCaB4rwOHTbPG8VFMGJGHB1I+yxh6GZFwGgZdbYLVrsEw33K3UU5XCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2fe8b0ec4e3b9b62d141f0f56b0f35ac1abd80fde59e6bd3600803df046d5c8","last_reissued_at":"2026-05-18T01:01:22.983299Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:22.983299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Physical parameter study of eight W Ursae Majoris-type contact binaries in NGC 188","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Changqing Luo, Jianfeng Tian, Jinjiang Sun, Kun Wang, Licai Deng, Qiang Zhou, Qili Liu, Richard de Grijs, Xiaobin Zhang, Xiaodian Chen, Yu Xin, Zhengzhou Yan, Zhiquan Luo","submitted_at":"2016-07-20T23:19:47Z","abstract_excerpt":"We used the newly commissioned 50 cm Binocular Network (50BiN) telescope at Qinghai Station of Purple Mountain Observatory (Chinese Academy of Sciences) to observe the old open cluster NGC 188 in V and R as part of a search for variable objects. Our time-series data span a total of 36 days. Radial velocity and proper-motion selection resulted in a sample of 532 genuine cluster members. Isochrone fitting was applied to the cleaned cluster sequence, yielding a distance modulus of (m - M)0V = 11.35 \\pm 0.10 mag and a total foreground reddening of E(V - R) = 0.062 \\pm 0.002 mag. Light-curve soluti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.06152","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":"1607.06152","created_at":"2026-05-18T01:01:22.983380+00:00"},{"alias_kind":"arxiv_version","alias_value":"1607.06152v1","created_at":"2026-05-18T01:01:22.983380+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.06152","created_at":"2026-05-18T01:01:22.983380+00:00"},{"alias_kind":"pith_short_12","alias_value":"UL7IWDWE4O43","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_16","alias_value":"UL7IWDWE4O43MLIU","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_8","alias_value":"UL7IWDWE","created_at":"2026-05-18T12:30:46.583412+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/UL7IWDWE4O43MLIUD4HVNMHTLL","json":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL.json","graph_json":"https://pith.science/api/pith-number/UL7IWDWE4O43MLIUD4HVNMHTLL/graph.json","events_json":"https://pith.science/api/pith-number/UL7IWDWE4O43MLIUD4HVNMHTLL/events.json","paper":"https://pith.science/paper/UL7IWDWE"},"agent_actions":{"view_html":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL","download_json":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL.json","view_paper":"https://pith.science/paper/UL7IWDWE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1607.06152&json=true","fetch_graph":"https://pith.science/api/pith-number/UL7IWDWE4O43MLIUD4HVNMHTLL/graph.json","fetch_events":"https://pith.science/api/pith-number/UL7IWDWE4O43MLIUD4HVNMHTLL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL/action/storage_attestation","attest_author":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL/action/author_attestation","sign_citation":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL/action/citation_signature","submit_replication":"https://pith.science/pith/UL7IWDWE4O43MLIUD4HVNMHTLL/action/replication_record"}},"created_at":"2026-05-18T01:01:22.983380+00:00","updated_at":"2026-05-18T01:01:22.983380+00:00"}