{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FNP65EYV3HJHIYFN2GURLCN2VI","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":"b88e4d2ee7ad24a3d7c99ad757434a2b9cb93d8318630d071b28a79fd854d042","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-06-11T19:21:10Z","title_canon_sha256":"af8abc5ecfe48939f3d7568eaf486d661c4b466cbc5dfc80f196a5719617d106"},"schema_version":"1.0","source":{"id":"1506.03787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03787","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03787v1","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03787","created_at":"2026-05-18T01:35:09Z"},{"alias_kind":"pith_short_12","alias_value":"FNP65EYV3HJH","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FNP65EYV3HJHIYFN","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FNP65EYV","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:e00b20f0e9e0b02a9128623d5d88dd70dc74006aa0b11407e700f7a0fff2ed36","target":"graph","created_at":"2026-05-18T01:35:09Z","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 an eclipsing binary -- PTF1 J072456$+$125301-- composed of a subdwarf B (sdB) star ($g'=17.2^m$) with a faint companion. Subdwarf B stars are core helium-burning stars, which can be found on the extreme horizontal branch. About half of them reside in close binary systems, but few are known to be eclipsing, for which fundamental stellar parameters can be derived.\\newline We conducted an analysis of photometric data and spectra from the Palomar 60'' and the 200\" Hale telescope respectively. A quantitative spectral analysis found an effective temperature of $T_{\\text{ef","authors_text":"D. Levitan, H. Drechsel, M. Schindewolf, T. Kuper, T. Prince, U. Heber, V. Schaffenroth","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-06-11T19:21:10Z","title":"A new HW Vir binary from the Palomar Transient Factory: PTF1 J072455.75+125300.3 - An eclipsing subdwarf B binary with a M-star companion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03787","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:fc3025c4b6588250c11290b75545a390cae720e7afe9f1fd0d27da01b38ec268","target":"record","created_at":"2026-05-18T01:35:09Z","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":"b88e4d2ee7ad24a3d7c99ad757434a2b9cb93d8318630d071b28a79fd854d042","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-06-11T19:21:10Z","title_canon_sha256":"af8abc5ecfe48939f3d7568eaf486d661c4b466cbc5dfc80f196a5719617d106"},"schema_version":"1.0","source":{"id":"1506.03787","kind":"arxiv","version":1}},"canonical_sha256":"2b5fee9315d9d27460add1a91589baaa0c5074fe500f43777752a1ee815365e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b5fee9315d9d27460add1a91589baaa0c5074fe500f43777752a1ee815365e6","first_computed_at":"2026-05-18T01:35:09.425877Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:09.425877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p6zjcYY85GX+dzCT+/8+YVp+SuMH9ZXergKnXFLYBo/as0CWRWBVd4yP3EKEGx7/SrtLVxBGNT6RZNXV/DV3Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:09.426648Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.03787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc3025c4b6588250c11290b75545a390cae720e7afe9f1fd0d27da01b38ec268","sha256:e00b20f0e9e0b02a9128623d5d88dd70dc74006aa0b11407e700f7a0fff2ed36"],"state_sha256":"0549eeb5796b73612a595d206517c36787339267fb27d23d3b90aa253a7abbc0"}