{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:S6UWYNJDWXWVOCVXLWCQXYJTVO","short_pith_number":"pith:S6UWYNJD","schema_version":"1.0","canonical_sha256":"97a96c3523b5ed570ab75d850be133ab921f308e9df7532f74d208e840c1a0ec","source":{"kind":"arxiv","id":"2507.21230","version":2},"attestation_state":"computed","paper":{"title":"Can high-redshift AGN observed by JWST explain the EDGES absorption signal?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alexandra Nelander, Christopher Cain, Jordan C J DSilva, Judd D Bowman, Peter H Sims, Rogier A Windhorst","submitted_at":"2025-07-28T18:00:08Z","abstract_excerpt":"The Experiment to Detect the Global Epoch of Reionization 21 cm Signal (EDGES) has reported evidence for an absorption feature in the sky-averaged radio background near 78 MHz. A cosmological interpretation of this signal corresponds to absorption of 21 cm photons by neutral hydrogen at $z \\sim 17$. The large depth of the signal has been shown to require an excess radio background above the CMB and/or non-standard cooling processes in the IGM. Here, we explore the plausibility of a scenario in which the EDGES signal is back-lit by an excess radio background sourced from a population of radio-l"},"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":"2507.21230","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-07-28T18:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"5490e3b98b574b5be023784812a98c84746ff6417df1c0308f5b5dc52d37255f","abstract_canon_sha256":"b645cf1ba6f5760a8c63092fc1d5144d6d4e9d37869cccf50b23277b493a64fc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-29T01:15:02.847117Z","signature_b64":"GbT8T9bagJJTI7x3fJGUcYC3qokqSMkwqnL2xnyOjmTbaapBiib41QYwoyQ+ytzl0ri8TK12rh8Z8VaYrzIWAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97a96c3523b5ed570ab75d850be133ab921f308e9df7532f74d208e840c1a0ec","last_reissued_at":"2026-06-29T01:15:02.846681Z","signature_status":"signed_v1","first_computed_at":"2026-06-29T01:15:02.846681Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Can high-redshift AGN observed by JWST explain the EDGES absorption signal?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alexandra Nelander, Christopher Cain, Jordan C J DSilva, Judd D Bowman, Peter H Sims, Rogier A Windhorst","submitted_at":"2025-07-28T18:00:08Z","abstract_excerpt":"The Experiment to Detect the Global Epoch of Reionization 21 cm Signal (EDGES) has reported evidence for an absorption feature in the sky-averaged radio background near 78 MHz. A cosmological interpretation of this signal corresponds to absorption of 21 cm photons by neutral hydrogen at $z \\sim 17$. The large depth of the signal has been shown to require an excess radio background above the CMB and/or non-standard cooling processes in the IGM. Here, we explore the plausibility of a scenario in which the EDGES signal is back-lit by an excess radio background sourced from a population of radio-l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.21230","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.21230/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":"2507.21230","created_at":"2026-06-29T01:15:02.846729+00:00"},{"alias_kind":"arxiv_version","alias_value":"2507.21230v2","created_at":"2026-06-29T01:15:02.846729+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.21230","created_at":"2026-06-29T01:15:02.846729+00:00"},{"alias_kind":"pith_short_12","alias_value":"S6UWYNJDWXWV","created_at":"2026-06-29T01:15:02.846729+00:00"},{"alias_kind":"pith_short_16","alias_value":"S6UWYNJDWXWVOCVX","created_at":"2026-06-29T01:15:02.846729+00:00"},{"alias_kind":"pith_short_8","alias_value":"S6UWYNJD","created_at":"2026-06-29T01:15:02.846729+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2604.21666","citing_title":"Impact of Primordial Black Hole population on 21 cm observables at high redshift","ref_index":90,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO","json":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO.json","graph_json":"https://pith.science/api/pith-number/S6UWYNJDWXWVOCVXLWCQXYJTVO/graph.json","events_json":"https://pith.science/api/pith-number/S6UWYNJDWXWVOCVXLWCQXYJTVO/events.json","paper":"https://pith.science/paper/S6UWYNJD"},"agent_actions":{"view_html":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO","download_json":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO.json","view_paper":"https://pith.science/paper/S6UWYNJD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2507.21230&json=true","fetch_graph":"https://pith.science/api/pith-number/S6UWYNJDWXWVOCVXLWCQXYJTVO/graph.json","fetch_events":"https://pith.science/api/pith-number/S6UWYNJDWXWVOCVXLWCQXYJTVO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO/action/storage_attestation","attest_author":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO/action/author_attestation","sign_citation":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO/action/citation_signature","submit_replication":"https://pith.science/pith/S6UWYNJDWXWVOCVXLWCQXYJTVO/action/replication_record"}},"created_at":"2026-06-29T01:15:02.846729+00:00","updated_at":"2026-06-29T01:15:02.846729+00:00"}