{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:VA6IQFJTTW7W54Z5DHIM4SPCA3","short_pith_number":"pith:VA6IQFJT","schema_version":"1.0","canonical_sha256":"a83c8815339dbf6ef33d19d0ce49e206c49bfeaf6ea79f78afc24794f6acc450","source":{"kind":"arxiv","id":"2402.08732","version":1},"attestation_state":"computed","paper":{"title":"Radio-loud fraction of z>6 quasars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Ajay Kumar, Gianni Bernardi, Nissim Kanekar, Nithyanandan Thyagarajan, Pascal M. Keller","submitted_at":"2024-02-13T19:01:12Z","abstract_excerpt":"Quasars at redshifts $z>6$ are an excellent probe of the formation and evolution of supermassive black holes in the early Universe. The population of radio-luminous quasars is of particular interest, as such quasars could potentially be used to study the neutral intergalactic medium during cosmic reionisation via H$\\,$I 21$\\,$cm absorption studies. However, the lack of deep radio observations of $z>6$ quasars leaves the population poorly constrained, and suitable candidates for an H$\\,$I 21$\\,$cm absorption study have yet to be found. In this work, we present Jansky Very Large Array (VLA) 1$-$"},"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":"2402.08732","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-02-13T19:01:12Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"c0fc3a78b6d7cb8bf505bab53557f65efda71e59d67b10016ad34e2d34258dd8","abstract_canon_sha256":"7aaaa50ff215f537415a81357eeba9db32f309c70a3dd7adc47c4cb2858c4530"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:45:01.608444Z","signature_b64":"jQxUbiWUC0xR/GMl3lcDybdrdyFw+GrKhS61zcK8LAcXDvvk40SaFz/FXG8ATlv3b3xP6Y+aiFEUwgT41wNaCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a83c8815339dbf6ef33d19d0ce49e206c49bfeaf6ea79f78afc24794f6acc450","last_reissued_at":"2026-07-05T07:45:01.607964Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:45:01.607964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Radio-loud fraction of z>6 quasars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Ajay Kumar, Gianni Bernardi, Nissim Kanekar, Nithyanandan Thyagarajan, Pascal M. Keller","submitted_at":"2024-02-13T19:01:12Z","abstract_excerpt":"Quasars at redshifts $z>6$ are an excellent probe of the formation and evolution of supermassive black holes in the early Universe. The population of radio-luminous quasars is of particular interest, as such quasars could potentially be used to study the neutral intergalactic medium during cosmic reionisation via H$\\,$I 21$\\,$cm absorption studies. However, the lack of deep radio observations of $z>6$ quasars leaves the population poorly constrained, and suitable candidates for an H$\\,$I 21$\\,$cm absorption study have yet to be found. In this work, we present Jansky Very Large Array (VLA) 1$-$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.08732","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2402.08732/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2402.08732","created_at":"2026-07-05T07:45:01.608023+00:00"},{"alias_kind":"arxiv_version","alias_value":"2402.08732v1","created_at":"2026-07-05T07:45:01.608023+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.08732","created_at":"2026-07-05T07:45:01.608023+00:00"},{"alias_kind":"pith_short_12","alias_value":"VA6IQFJTTW7W","created_at":"2026-07-05T07:45:01.608023+00:00"},{"alias_kind":"pith_short_16","alias_value":"VA6IQFJTTW7W54Z5","created_at":"2026-07-05T07:45:01.608023+00:00"},{"alias_kind":"pith_short_8","alias_value":"VA6IQFJT","created_at":"2026-07-05T07:45:01.608023+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/VA6IQFJTTW7W54Z5DHIM4SPCA3","json":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3.json","graph_json":"https://pith.science/api/pith-number/VA6IQFJTTW7W54Z5DHIM4SPCA3/graph.json","events_json":"https://pith.science/api/pith-number/VA6IQFJTTW7W54Z5DHIM4SPCA3/events.json","paper":"https://pith.science/paper/VA6IQFJT"},"agent_actions":{"view_html":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3","download_json":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3.json","view_paper":"https://pith.science/paper/VA6IQFJT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2402.08732&json=true","fetch_graph":"https://pith.science/api/pith-number/VA6IQFJTTW7W54Z5DHIM4SPCA3/graph.json","fetch_events":"https://pith.science/api/pith-number/VA6IQFJTTW7W54Z5DHIM4SPCA3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3/action/storage_attestation","attest_author":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3/action/author_attestation","sign_citation":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3/action/citation_signature","submit_replication":"https://pith.science/pith/VA6IQFJTTW7W54Z5DHIM4SPCA3/action/replication_record"}},"created_at":"2026-07-05T07:45:01.608023+00:00","updated_at":"2026-07-05T07:45:01.608023+00:00"}