{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:KRJ6DZFZTRI76ESQMSSJNRAMPD","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":"65b72be4da416f85bce7c4137c53c758677ba26832bad357c20736c4906f823e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-19T14:01:29Z","title_canon_sha256":"3fe09daac7ed35c7ec69a09a45cc41ba2c524219fe05acd24dab0f6c7d60cdfb"},"schema_version":"1.0","source":{"id":"1406.5049","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.5049","created_at":"2026-05-18T02:48:09Z"},{"alias_kind":"arxiv_version","alias_value":"1406.5049v1","created_at":"2026-05-18T02:48:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5049","created_at":"2026-05-18T02:48:09Z"},{"alias_kind":"pith_short_12","alias_value":"KRJ6DZFZTRI7","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KRJ6DZFZTRI76ESQ","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KRJ6DZFZ","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:ae13a32fd6ef1ef38a6a9654f29416c764a9b95d8a1bf29a7fe7087e7f360212","target":"graph","created_at":"2026-05-18T02:48:09Z","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":"X-rays from massive stars are ubiquitous yet not clearly understood. In an XMM-Newton observation devoted to observe the first site of star formation in the $\\rho$ Ophiuchi dark cloud, we detect smoothly variable X-ray emission from the B2IV+B2V system of $\\rho$ Ophiuchi. Tentatively we assign the emission to the primary component. The light curve of the pn camera shows a first phase of low, almost steady rate, then a rise phase of duration of 10 ks, followed by a high rate phase. The variability is seen primarily in the band 1.0-8.0 keV while little variability is detected below 1 keV. The sp","authors_text":"Alyssa Goodman, Ignazio Pillitteri, Salvatore Sciortino, Scott J. Wolk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-19T14:01:29Z","title":"Smooth X-ray variability from $\\rho$ Ophiuchi A+B. A strongly magnetized primary B2 star?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5049","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:bf14b0ce68fa70405e49dd25ed45d192ef77963378692b8b881c4495b06efb89","target":"record","created_at":"2026-05-18T02:48:09Z","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":"65b72be4da416f85bce7c4137c53c758677ba26832bad357c20736c4906f823e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-19T14:01:29Z","title_canon_sha256":"3fe09daac7ed35c7ec69a09a45cc41ba2c524219fe05acd24dab0f6c7d60cdfb"},"schema_version":"1.0","source":{"id":"1406.5049","kind":"arxiv","version":1}},"canonical_sha256":"5453e1e4b99c51ff125064a496c40c78f576ae8550c1c94e579659800b251bb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5453e1e4b99c51ff125064a496c40c78f576ae8550c1c94e579659800b251bb2","first_computed_at":"2026-05-18T02:48:09.078802Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:48:09.078802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+MEn8Q961NWd/qEqkfyNgl3DYODvZHAbBWwmQfFIrsNdredMDodNcdPKb8j7RYgVvjUpENu9xPQ/xtfqF7udAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:48:09.079303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.5049","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf14b0ce68fa70405e49dd25ed45d192ef77963378692b8b881c4495b06efb89","sha256:ae13a32fd6ef1ef38a6a9654f29416c764a9b95d8a1bf29a7fe7087e7f360212"],"state_sha256":"683d5d9066d9306236c4573db25c5f676ff457976860f40f290de3f3d583a036"}