{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AAWBXWWQXNQMI5MOM3HDTA43RU","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":"c3877abf56c572813435627a8374773ad5912e2af1f1f082ac20ef95258e9e29","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-13T07:04:40Z","title_canon_sha256":"ce71a7655a1ad0c8b2d477ad40499cb2cd76f146c63b266357f262774b713485"},"schema_version":"1.0","source":{"id":"1804.04801","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04801","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04801v1","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04801","created_at":"2026-05-18T00:13:26Z"},{"alias_kind":"pith_short_12","alias_value":"AAWBXWWQXNQM","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AAWBXWWQXNQMI5MO","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AAWBXWWQ","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:d5c67abaa2a77f24f6020e4d4ab00e2ace2df435c14991b5ab93dd406bf5973a","target":"graph","created_at":"2026-05-18T00:13:26Z","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":"W Ursa Majoris (W UMa)-type contact binary systems (CBs) are useful statistical distance indicators because of their large numbers. Here, we establish (orbital) period-luminosity relations (PLRs) in 12 optical-to-mid-infrared bands (GBV RIJHKsW1W2W3W4) based on 183 nearby W UMa-type CBs with accurate Tycho-Gaia parallaxes. The 1{\\sigma} dispersion of the PLRs decreases from optical to near- and mid-infrared wavelengths. The minimum scatter, 0.16 mag, implies that W UMa-type CBs can be used to recover distances to 7% precision. Applying our newly determined PLRs to 19 open clusters containing W","authors_text":"Astronomy, Licai Deng (NAOC), Macquarie University), Peking University), Richard de Grijs (Department of Physics, Shu Wang (KIAA, Xiaodian Chen (NAOC), Yuting Feng (Peking University)","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-13T07:04:40Z","title":"Optical-Mid-Infrared Period-Luminosity Relations for W UMa-type Contact Binaries Based on Gaia DR 1: 8% Distance Accuracy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04801","kind":"arxiv","version":1},"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":"sha256:0b7043cf447136f3ee9fb10a2ce5bc0e4b8ae969e1f2845452fdedf32abf01e9","target":"record","created_at":"2026-05-18T00:13:26Z","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":"c3877abf56c572813435627a8374773ad5912e2af1f1f082ac20ef95258e9e29","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-13T07:04:40Z","title_canon_sha256":"ce71a7655a1ad0c8b2d477ad40499cb2cd76f146c63b266357f262774b713485"},"schema_version":"1.0","source":{"id":"1804.04801","kind":"arxiv","version":1}},"canonical_sha256":"002c1bdad0bb60c4758e66ce39839b8d2c6360d0852a192587e73fd8cd90d45a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"002c1bdad0bb60c4758e66ce39839b8d2c6360d0852a192587e73fd8cd90d45a","first_computed_at":"2026-05-18T00:13:26.351749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:26.351749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bOzbEya9IAJhhxdi9eiW1Yuvft715VipFlzd20diUx4lRAMDgZNlZdxzj9zJ7z1nyOl9lW8ou/sGQA9/4AcCBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:26.352424Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.04801","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b7043cf447136f3ee9fb10a2ce5bc0e4b8ae969e1f2845452fdedf32abf01e9","sha256:d5c67abaa2a77f24f6020e4d4ab00e2ace2df435c14991b5ab93dd406bf5973a"],"state_sha256":"06c78c3ae6a6f088554ab6d149431a9f424ddf56b4d7e94b54ca0466fbec20a5"}