{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:OJ5EPXH2LQYPWIY7LJ2J27PSJE","short_pith_number":"pith:OJ5EPXH2","schema_version":"1.0","canonical_sha256":"727a47dcfa5c30fb231f5a749d7df24920853a5945ce6c09f04be05c9dfd93bf","source":{"kind":"arxiv","id":"1311.1686","version":2},"attestation_state":"computed","paper":{"title":"X-rays from the redshift 7.1 quasar ULAS J1120+0641","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B.P. Venemans, C. Simpson, D.J. Mortlock, M.J. Page, P.C. Hewett, R.G. McMahon, S.J. Warren","submitted_at":"2013-11-07T14:02:28Z","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"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1311.1686","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-11-07T14:02:28Z","cross_cats_sorted":[],"title_canon_sha256":"ce178bdd86fef482e7ac82564861e49d97f3e3af9ddca9b741ab5f66c3464d57","abstract_canon_sha256":"f19a4edaac203193f2e17634d7c721f519df9f494553cc98488b3a600b84bdf4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:33.271360Z","signature_b64":"wtw7lVzhVns9qfK4F1WGK2hb35iqy+t/C03D467/jBIZBxUainBVQCfxRGFpsMmdqU6CZeFWmOxx4n9II4McCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"727a47dcfa5c30fb231f5a749d7df24920853a5945ce6c09f04be05c9dfd93bf","last_reissued_at":"2026-05-18T01:46:33.270874Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:33.270874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"X-rays from the redshift 7.1 quasar ULAS J1120+0641","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B.P. Venemans, C. Simpson, D.J. Mortlock, M.J. Page, P.C. Hewett, R.G. McMahon, S.J. Warren","submitted_at":"2013-11-07T14:02:28Z","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"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1686","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1311.1686","created_at":"2026-05-18T01:46:33.270948+00:00"},{"alias_kind":"arxiv_version","alias_value":"1311.1686v2","created_at":"2026-05-18T01:46:33.270948+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1686","created_at":"2026-05-18T01:46:33.270948+00:00"},{"alias_kind":"pith_short_12","alias_value":"OJ5EPXH2LQYP","created_at":"2026-05-18T12:27:54.935989+00:00"},{"alias_kind":"pith_short_16","alias_value":"OJ5EPXH2LQYPWIY7","created_at":"2026-05-18T12:27:54.935989+00:00"},{"alias_kind":"pith_short_8","alias_value":"OJ5EPXH2","created_at":"2026-05-18T12:27:54.935989+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.21580","citing_title":"Massquerade: Impacts of Mass Ratio Reversals on Binary Black Hole Merger Rates and Mass Distributions","ref_index":165,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE","json":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE.json","graph_json":"https://pith.science/api/pith-number/OJ5EPXH2LQYPWIY7LJ2J27PSJE/graph.json","events_json":"https://pith.science/api/pith-number/OJ5EPXH2LQYPWIY7LJ2J27PSJE/events.json","paper":"https://pith.science/paper/OJ5EPXH2"},"agent_actions":{"view_html":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE","download_json":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE.json","view_paper":"https://pith.science/paper/OJ5EPXH2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1311.1686&json=true","fetch_graph":"https://pith.science/api/pith-number/OJ5EPXH2LQYPWIY7LJ2J27PSJE/graph.json","fetch_events":"https://pith.science/api/pith-number/OJ5EPXH2LQYPWIY7LJ2J27PSJE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE/action/storage_attestation","attest_author":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE/action/author_attestation","sign_citation":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE/action/citation_signature","submit_replication":"https://pith.science/pith/OJ5EPXH2LQYPWIY7LJ2J27PSJE/action/replication_record"}},"created_at":"2026-05-18T01:46:33.270948+00:00","updated_at":"2026-05-18T01:46:33.270948+00:00"}