{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:R7SLYZGLSL6VZNP7LSR5R3BW32","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":"dcce30b4ea4182d8478327203c9144acbcfab0f232155f2a64b9252c05d1b846","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-10T10:59:10Z","title_canon_sha256":"0177121104842a3750cbf07fe26dc8cf1b10f6b2927fb396230387f588203e97"},"schema_version":"1.0","source":{"id":"1103.1989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1989","created_at":"2026-05-18T02:02:55Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1989v1","created_at":"2026-05-18T02:02:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1989","created_at":"2026-05-18T02:02:55Z"},{"alias_kind":"pith_short_12","alias_value":"R7SLYZGLSL6V","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"R7SLYZGLSL6VZNP7","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"R7SLYZGL","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:8fb3abff208e1bc86c8ca0ca5db3dc56b54396e349ee10608cc95d74ba57ce9c","target":"graph","created_at":"2026-05-18T02:02:55Z","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":"Hot subdwarf B stars (sdBs) are extreme horizontal branch stars believed to originate from close binary evolution. Indeed about half of the known sdB stars are found in close binaries with periods ranging from a few hours to a few days. The enormous mass loss required to remove the hydrogen envelope of the red-giant progenitor almost entirely can be explained by common envelope ejection. A rare subclass of these binaries are the eclipsing HW Vir binaries where the sdB is orbited by a dwarf M star. Here we report the discovery of an HW Vir system in the course of the MUCHFUSS project. A most li","authors_text":"A. Tillich, B. N. Barlow, B. T. Gaensicke, H. Drechsel, K. Smolders, P. Degroote, P. F. L. Maxted, R. H. Oestensen, R. Napiwotzki, S. Geier, T. Kupfer, T. R. Marsh, U. Heber, V. Schaffenroth","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-10T10:59:10Z","title":"Binaries discovered by the MUCHFUSS project SDSS J08205+0008 - An eclipsing subdwarf B binary with brown dwarf companion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1989","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":"sha256:2ef7f90a11b4b7dafdb6829a531b4e2c835d150ab69d570d809fefeec5d92ce3","target":"record","created_at":"2026-05-18T02:02:55Z","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":"dcce30b4ea4182d8478327203c9144acbcfab0f232155f2a64b9252c05d1b846","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-10T10:59:10Z","title_canon_sha256":"0177121104842a3750cbf07fe26dc8cf1b10f6b2927fb396230387f588203e97"},"schema_version":"1.0","source":{"id":"1103.1989","kind":"arxiv","version":1}},"canonical_sha256":"8fe4bc64cb92fd5cb5ff5ca3d8ec36debeaf3a83f08efa143431dd19d9ba4f70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8fe4bc64cb92fd5cb5ff5ca3d8ec36debeaf3a83f08efa143431dd19d9ba4f70","first_computed_at":"2026-05-18T02:02:55.232626Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:55.232626Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L90iNd/8V1lXqFuGi3h04I8HOJR4PJAIkG59Ejc/IBlY6lianicWnQKejine3ls6aQRTFAZQ1MVycrzFp7ehDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:55.233307Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.1989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ef7f90a11b4b7dafdb6829a531b4e2c835d150ab69d570d809fefeec5d92ce3","sha256:8fb3abff208e1bc86c8ca0ca5db3dc56b54396e349ee10608cc95d74ba57ce9c"],"state_sha256":"3e81b4cdbd8a5e4c2f168a9de1806fddf7ea156ffb50e569ec13ccf261474073"}