{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:RIO77A2LRFGLZSCB64OJCLJEXQ","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":"53a60adfdabad1d7b10b1aa9bfae8551ca2209b50417c489e1cd2d92ff4c73da","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-09-12T12:47:42Z","title_canon_sha256":"44d19f6d33b1977751fdfdccdfa8eb6185ddd59d5d270f84dbc700a80bc02363"},"schema_version":"1.0","source":{"id":"1209.2592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2592","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2592v1","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2592","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"pith_short_12","alias_value":"RIO77A2LRFGL","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RIO77A2LRFGLZSCB","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RIO77A2L","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:dbfd05290a0987fbc3a716f53806636db82be581d118330c08bf4c66a1cc913a","target":"graph","created_at":"2026-05-18T01:54:29Z","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 present a multi-wavelength (X-ray, $\\gamma$-ray, optical and radio) study of HD 194816, a late O-type X-ray detected spectroscopic binary. X-ray spectra are analyzed and the X-ray photon arrival times are checked for pulsation. In addition, newly obtained optical spectroscopic monitoring data on HD 164816 are presented. They are complemented by available radio data from several large scale surveys as well as the \\emph{FERMI} $\\gamma$-ray data from its \\emph{Large Area Telescope}. We report the detection of a low energy excess in the X-ray spectrum that can be described by a simple absorbed ","authors_text":"F. M. Walter, L. Trepl, M. M. Hohle, N. Tetzlaff, O. Stahl, R. Chini, R. Neuh\\\"auser, S. B. Popov, T. Pribulla, V. V. Hambaryan","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-09-12T12:47:42Z","title":"Is there a compact companion orbiting the late O-type binary star HD 164816?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2592","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:e6a529d9719507ce2232fce182c605dc1df927427ec5c6ce4cf34ab7cae6703d","target":"record","created_at":"2026-05-18T01:54:29Z","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":"53a60adfdabad1d7b10b1aa9bfae8551ca2209b50417c489e1cd2d92ff4c73da","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-09-12T12:47:42Z","title_canon_sha256":"44d19f6d33b1977751fdfdccdfa8eb6185ddd59d5d270f84dbc700a80bc02363"},"schema_version":"1.0","source":{"id":"1209.2592","kind":"arxiv","version":1}},"canonical_sha256":"8a1dff834b894cbcc841f71c912d24bc35ba0be20feadbca72a9c7c8a2c72534","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a1dff834b894cbcc841f71c912d24bc35ba0be20feadbca72a9c7c8a2c72534","first_computed_at":"2026-05-18T01:54:29.975090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:29.975090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yWVa0DIVho/LnHsTyIna6uJ2l172lAFoOWTzuOv1RNttH55V16QjNGwM84np3UnzoAPky1fNQERSyYNOsKwrDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:29.975664Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6a529d9719507ce2232fce182c605dc1df927427ec5c6ce4cf34ab7cae6703d","sha256:dbfd05290a0987fbc3a716f53806636db82be581d118330c08bf4c66a1cc913a"],"state_sha256":"996548ac13f9fda2e4e94b6397fd436b1c97318bf9b7d0d1c811a74b4de88888"}