{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:YNJZSYUHCK5IEDJE5S34FHXGEW","short_pith_number":"pith:YNJZSYUH","schema_version":"1.0","canonical_sha256":"c35399628712ba820d24ecb7c29ee6259fbaf60c36e3ce932ea2c7a8b45be991","source":{"kind":"arxiv","id":"0710.1839","version":2},"attestation_state":"computed","paper":{"title":"Comparing and calibrating black hole mass estimators for distant active galactic nuclei","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Jong-Hak Woo, Kathryn L. McGill, Matthew A. Malkan, Tommaso Treu","submitted_at":"2007-10-09T19:53:03Z","abstract_excerpt":"Black hole mass is a fundamental property of active galactic nuclei (AGNs). In the distant universe, black hole mass is commonly estimated using the MgII, Hbeta, or Halpha emission line widths and the optical/UV continuum or line luminosities, as proxies for the characteristic velocity and size of the broad-line region. Although they all have a common calibration in the local universe, a number of different recipes are currently used in the literature. It is important to verify the relative accuracy and consistency of the recipes, as systematic changes could mimic evolutionary trends when comp"},"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":"0710.1839","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-10-09T19:53:03Z","cross_cats_sorted":[],"title_canon_sha256":"daec23b80464edf457423f3fb0fc53671366afcabf59ba3825334300a99bc9c6","abstract_canon_sha256":"0c79acc010ca043079285170ed074f17079b6c4f662f243c1115533e56a86b77"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:00.674758Z","signature_b64":"moxkGiv4reQHZOVHZlaqyzYqNdF4F5uRSiTwduxIGZafaCr9aNI3WtDkkf/JP48U8Fwd+KCY/Ki9axdwzGnHDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c35399628712ba820d24ecb7c29ee6259fbaf60c36e3ce932ea2c7a8b45be991","last_reissued_at":"2026-05-18T04:26:00.674309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:00.674309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Comparing and calibrating black hole mass estimators for distant active galactic nuclei","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Jong-Hak Woo, Kathryn L. McGill, Matthew A. Malkan, Tommaso Treu","submitted_at":"2007-10-09T19:53:03Z","abstract_excerpt":"Black hole mass is a fundamental property of active galactic nuclei (AGNs). In the distant universe, black hole mass is commonly estimated using the MgII, Hbeta, or Halpha emission line widths and the optical/UV continuum or line luminosities, as proxies for the characteristic velocity and size of the broad-line region. Although they all have a common calibration in the local universe, a number of different recipes are currently used in the literature. It is important to verify the relative accuracy and consistency of the recipes, as systematic changes could mimic evolutionary trends when comp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.1839","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":"0710.1839","created_at":"2026-05-18T04:26:00.674383+00:00"},{"alias_kind":"arxiv_version","alias_value":"0710.1839v2","created_at":"2026-05-18T04:26:00.674383+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.1839","created_at":"2026-05-18T04:26:00.674383+00:00"},{"alias_kind":"pith_short_12","alias_value":"YNJZSYUHCK5I","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_16","alias_value":"YNJZSYUHCK5IEDJE","created_at":"2026-05-18T12:25:56.245647+00:00"},{"alias_kind":"pith_short_8","alias_value":"YNJZSYUH","created_at":"2026-05-18T12:25:56.245647+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW","json":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW.json","graph_json":"https://pith.science/api/pith-number/YNJZSYUHCK5IEDJE5S34FHXGEW/graph.json","events_json":"https://pith.science/api/pith-number/YNJZSYUHCK5IEDJE5S34FHXGEW/events.json","paper":"https://pith.science/paper/YNJZSYUH"},"agent_actions":{"view_html":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW","download_json":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW.json","view_paper":"https://pith.science/paper/YNJZSYUH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0710.1839&json=true","fetch_graph":"https://pith.science/api/pith-number/YNJZSYUHCK5IEDJE5S34FHXGEW/graph.json","fetch_events":"https://pith.science/api/pith-number/YNJZSYUHCK5IEDJE5S34FHXGEW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW/action/storage_attestation","attest_author":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW/action/author_attestation","sign_citation":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW/action/citation_signature","submit_replication":"https://pith.science/pith/YNJZSYUHCK5IEDJE5S34FHXGEW/action/replication_record"}},"created_at":"2026-05-18T04:26:00.674383+00:00","updated_at":"2026-05-18T04:26:00.674383+00:00"}