{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OJ5EPXH2LQYPWIY7LJ2J27PSJE","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":"f19a4edaac203193f2e17634d7c721f519df9f494553cc98488b3a600b84bdf4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-11-07T14:02:28Z","title_canon_sha256":"ce178bdd86fef482e7ac82564861e49d97f3e3af9ddca9b741ab5f66c3464d57"},"schema_version":"1.0","source":{"id":"1311.1686","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1686","created_at":"2026-05-18T01:46:33Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1686v2","created_at":"2026-05-18T01:46:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1686","created_at":"2026-05-18T01:46:33Z"},{"alias_kind":"pith_short_12","alias_value":"OJ5EPXH2LQYP","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OJ5EPXH2LQYPWIY7","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OJ5EPXH2","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:8335e0cde8f930ce9de84435ed7bf746a36b91fdc5f6651cbe21945bf71dfecb","target":"graph","created_at":"2026-05-18T01:46:33Z","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 X-ray imaging and spectroscopy of the redshift z=7.084 radio-quiet quasar ULAS J112001.48+064124.3 obtained with Chandra and XMM-Newton. The quasar is detected as a point source with both observatories. The Chandra observation provides a precise position, confirming the association of the X-ray source and the quasar, while a sufficient number of photons is detected in the XMM-Newton observation to yield a meaningful X-ray spectrum. In the XMM-Newton observation the quasar has a 2-10 keV luminosity of 4.7+-0.9 times 10^44 erg/s and a spectral slope alpha = 1.6+0.4/-0.3 (where f_nu is","authors_text":"B.P. Venemans, C. Simpson, D.J. Mortlock, M.J. Page, P.C. Hewett, R.G. McMahon, S.J. Warren","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-11-07T14:02:28Z","title":"X-rays from the redshift 7.1 quasar ULAS J1120+0641"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1686","kind":"arxiv","version":2},"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:cd0980b986f55ddf9b53855224629b1bc66dbe2cf780890dd9de40117c20a81e","target":"record","created_at":"2026-05-18T01:46:33Z","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":"f19a4edaac203193f2e17634d7c721f519df9f494553cc98488b3a600b84bdf4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-11-07T14:02:28Z","title_canon_sha256":"ce178bdd86fef482e7ac82564861e49d97f3e3af9ddca9b741ab5f66c3464d57"},"schema_version":"1.0","source":{"id":"1311.1686","kind":"arxiv","version":2}},"canonical_sha256":"727a47dcfa5c30fb231f5a749d7df24920853a5945ce6c09f04be05c9dfd93bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"727a47dcfa5c30fb231f5a749d7df24920853a5945ce6c09f04be05c9dfd93bf","first_computed_at":"2026-05-18T01:46:33.270874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:33.270874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wtw7lVzhVns9qfK4F1WGK2hb35iqy+t/C03D467/jBIZBxUainBVQCfxRGFpsMmdqU6CZeFWmOxx4n9II4McCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:33.271360Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.1686","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd0980b986f55ddf9b53855224629b1bc66dbe2cf780890dd9de40117c20a81e","sha256:8335e0cde8f930ce9de84435ed7bf746a36b91fdc5f6651cbe21945bf71dfecb"],"state_sha256":"8bc4af2ed7da70d5214eb030f2fa53554e5ea7bab72725c9b38d8e339974d75b"}