{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:LI6TP6XU2COMT4ZDLK6M3H2CVK","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":"6088be236a96eff9a0de1c96d149c2e1967626da61658238bc29f0880b507762","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-18T15:47:52Z","title_canon_sha256":"d6ef72b82a5376606cd33116e1d12ed1b7012fc71db79c0293b048616dd18626"},"schema_version":"1.0","source":{"id":"1011.4215","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.4215","created_at":"2026-05-18T02:04:43Z"},{"alias_kind":"arxiv_version","alias_value":"1011.4215v1","created_at":"2026-05-18T02:04:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.4215","created_at":"2026-05-18T02:04:43Z"},{"alias_kind":"pith_short_12","alias_value":"LI6TP6XU2COM","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LI6TP6XU2COMT4ZD","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LI6TP6XU","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:f9b304637090714f9156876a1d522cfd72e44b3f98ea519321e4dc16ea175e42","target":"graph","created_at":"2026-05-18T02:04:43Z","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 have identified the optical counterpart of the ULX source P13 in the nearby spiral galaxy NGC 7793. The object is a V ~ 20.5 mag star, ten times brighter than any other established counterpart of a ULX in nearby galaxies. Medium resolution optical spectroscopy carried out in 2008 and 2009 with the ESO-VLT reveals the presence of narrow high order Balmer, HeI and MgII absorption lines indicating a late B type supergiant companion star with mass between 10 and 20 Msol. Stellar H beta and HeII 4686 emission lines are also seen superposed on the photospheric spectrum. We detect different patter","authors_text":"C. Motch, F. Gris\\'e, M.W. Pakull, R. Soria","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-18T15:47:52Z","title":"The supergiant optical counterpart of ULX P13 in NGC7793"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4215","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":"sha256:2237c2daba6dc5bd9d4bfd155ae7d97053814f200d2e02329397c43f1aaeb740","target":"record","created_at":"2026-05-18T02:04:43Z","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":"6088be236a96eff9a0de1c96d149c2e1967626da61658238bc29f0880b507762","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-18T15:47:52Z","title_canon_sha256":"d6ef72b82a5376606cd33116e1d12ed1b7012fc71db79c0293b048616dd18626"},"schema_version":"1.0","source":{"id":"1011.4215","kind":"arxiv","version":1}},"canonical_sha256":"5a3d37faf4d09cc9f3235abccd9f42aaad2ceeca6618b5b4c06804054376210e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a3d37faf4d09cc9f3235abccd9f42aaad2ceeca6618b5b4c06804054376210e","first_computed_at":"2026-05-18T02:04:43.945279Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:43.945279Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TKt31eF3CbFx8IfdzrZFDaogxVtZnV4mqdYa16Beka3AgovRha6LngeaQjZ8GrXTEQKK1fMD6ZkYwdYZX8k/CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:43.946285Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.4215","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2237c2daba6dc5bd9d4bfd155ae7d97053814f200d2e02329397c43f1aaeb740","sha256:f9b304637090714f9156876a1d522cfd72e44b3f98ea519321e4dc16ea175e42"],"state_sha256":"6e636f233018777584b6e73d709f77234ab3c54bbb3d4bc782041301ee5ac839"}