{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GAI6WKPQJ2DPUV3UCMKC3YAIVM","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":"84b1389807ba78c0dc1b2e46e001bb22c27ba284ca25455d166b99419fb8f0af","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-02-05T14:39:02Z","title_canon_sha256":"5218ff73509850f726ab5996dfb1f38dc99f494eca2fe560600e858b626e7398"},"schema_version":"1.0","source":{"id":"2002.01811","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.01811","created_at":"2026-07-05T01:33:35Z"},{"alias_kind":"arxiv_version","alias_value":"2002.01811v3","created_at":"2026-07-05T01:33:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.01811","created_at":"2026-07-05T01:33:35Z"},{"alias_kind":"pith_short_12","alias_value":"GAI6WKPQJ2DP","created_at":"2026-07-05T01:33:35Z"},{"alias_kind":"pith_short_16","alias_value":"GAI6WKPQJ2DPUV3U","created_at":"2026-07-05T01:33:35Z"},{"alias_kind":"pith_short_8","alias_value":"GAI6WKPQ","created_at":"2026-07-05T01:33:35Z"}],"graph_snapshots":[{"event_id":"sha256:019216e3677e6fdb2d11f6ccc80eab2a34e08443eb8648378e12def8fe321968","target":"graph","created_at":"2026-07-05T01:33:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2002.01811/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a multi-wavelength survey of $13$ quasars at $5.8\\lesssim z\\lesssim6.5$, that were pre-selected to be potentially young, we find five objects with extremely small proximity zone sizes that may imply UV-luminous quasar lifetimes of $\\lesssim 100,000$ years. Proximity zones are regions of enhanced transmitted flux in the vicinity of the quasars that are sensitive to the quasars' lifetimes because the intergalactic gas has a finite response time to their radiation. We combine sub-mm observations from the Atacama Large Millimetre Array (ALMA) and the NOrthern Extended Millimeter Array (NOEMA), ","authors_text":"Anna-Christina Eilers, Bram Venemans, Chiara Mazzucchelli, Eduardo Ba\\~nados, Emanuele P. Farina, Fabian Walter, Feige Wang, Frederick B. Davies, Jan-Torge Schindler, Jinyi Yang, Joseph F. Hennawi, Mladen Novak, Robert A. Simcoe, Roberto Decarli, Xiaohui Fan","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-02-05T14:39:02Z","title":"Detecting and Characterizing Young Quasars I: Systemic Redshifts and Proximity Zones Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.01811","kind":"arxiv","version":3},"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":"sha256:3b8073b01ce0b40411985fb8095a1ec9c221ad1761acd273c90ad332fca8dc3e","target":"record","created_at":"2026-07-05T01:33:35Z","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":"84b1389807ba78c0dc1b2e46e001bb22c27ba284ca25455d166b99419fb8f0af","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-02-05T14:39:02Z","title_canon_sha256":"5218ff73509850f726ab5996dfb1f38dc99f494eca2fe560600e858b626e7398"},"schema_version":"1.0","source":{"id":"2002.01811","kind":"arxiv","version":3}},"canonical_sha256":"3011eb29f04e86fa577413142de008ab0198d921df6003b1a4d74c533906beba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3011eb29f04e86fa577413142de008ab0198d921df6003b1a4d74c533906beba","first_computed_at":"2026-07-05T01:33:35.468357Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:33:35.468357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K5XUeGoAX5v4PGdzvnQgXuo3rPVdXSRkdw9or60hwxaWSjBPLyQ1nd7uT8AlVJfFwmGiSnPgGaKfGSTVl1MiAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:33:35.468732Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.01811","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b8073b01ce0b40411985fb8095a1ec9c221ad1761acd273c90ad332fca8dc3e","sha256:019216e3677e6fdb2d11f6ccc80eab2a34e08443eb8648378e12def8fe321968"],"state_sha256":"3a100ca101989a8ce9a6b8d5cbde1cf4afc74a446c5606194ee5070a5c2b166f"}