{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:WQTMCWFW5JNPQCRZTCVDTVBXAR","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":"3828b204d58fa3741ebffd88cb9a80c24482702ba9d19ed618376d6c95957e1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-06T21:00:01Z","title_canon_sha256":"e6fca3a05ae5092f950bafe804eaa5a15cf9fbc7d08c8864466157155b0ff49f"},"schema_version":"1.0","source":{"id":"1601.01316","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.01316","created_at":"2026-05-18T01:20:08Z"},{"alias_kind":"arxiv_version","alias_value":"1601.01316v1","created_at":"2026-05-18T01:20:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.01316","created_at":"2026-05-18T01:20:08Z"},{"alias_kind":"pith_short_12","alias_value":"WQTMCWFW5JNP","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"WQTMCWFW5JNPQCRZ","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"WQTMCWFW","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:fe62cfc2f245ad6515e24d1126156ebfca8a337f97516f1490880f2851a293df","target":"graph","created_at":"2026-05-18T01:20:08Z","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":"We report the discovery of 42 white dwarfs in the original Kepler mission field, including nine new confirmed pulsating hydrogen-atmosphere white dwarfs (ZZ Ceti stars). Guided by the Kepler-INT Survey (KIS), we selected white dwarf candidates on the basis of their U-g, g-r, and r-H_alpha photometric colours. We followed up these candidates with high-signal-to-noise optical spectroscopy from the 4.2-m William Herschel Telescope. Using ground-based, time-series photometry, we put our sample of new spectroscopically characterized white dwarfs in the context of the empirical ZZ Ceti instability s","authors_text":"B. T. Gaensicke, D. E. Winget, D. Koester, D. T. H. Steeghs, E. Breedt, G. Ramsay, J. J. Hermes, Keaton J. Bell, K. I. Winget, P.-E. Tremblay, P. J. Carter, R. Raddi, S. Greiss, Z. Vanderbosch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-06T21:00:01Z","title":"The search for ZZ Ceti stars in the original Kepler mission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.01316","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":"sha256:09413c17862ac9ba50ad3e3ea4e3e5f455881adf11006b3ca49f3245b1806830","target":"record","created_at":"2026-05-18T01:20:08Z","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":"3828b204d58fa3741ebffd88cb9a80c24482702ba9d19ed618376d6c95957e1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-06T21:00:01Z","title_canon_sha256":"e6fca3a05ae5092f950bafe804eaa5a15cf9fbc7d08c8864466157155b0ff49f"},"schema_version":"1.0","source":{"id":"1601.01316","kind":"arxiv","version":1}},"canonical_sha256":"b426c158b6ea5af80a3998aa39d437046d5e6822ac2fde4aa8c20448adc20003","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b426c158b6ea5af80a3998aa39d437046d5e6822ac2fde4aa8c20448adc20003","first_computed_at":"2026-05-18T01:20:08.392598Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:08.392598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gPoxn7J9MGwgTV8WgJ3JSU7C3ThJoynMdPaVwQL3k85CJ8JKPWeIIP8P8EAau4+K+wqr/V8iFNJxF9oR29KnBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:08.393243Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.01316","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09413c17862ac9ba50ad3e3ea4e3e5f455881adf11006b3ca49f3245b1806830","sha256:fe62cfc2f245ad6515e24d1126156ebfca8a337f97516f1490880f2851a293df"],"state_sha256":"7af61331ce1208f98d2c0a3ddc26c52d7e93e3adfa3d333428a6dfb5c009cd4e"}