{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:PGDGLSEWP3NTQGIT56JXKGCPAD","short_pith_number":"pith:PGDGLSEW","schema_version":"1.0","canonical_sha256":"798665c8967edb381913ef9375184f00f0d7e8e609ad869975a03b85fb6ef153","source":{"kind":"arxiv","id":"1206.6930","version":1},"attestation_state":"computed","paper":{"title":"Lower Redshift Analogues of the Sources of Reionization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Michael Rauch (Carnegie Observatories)","submitted_at":"2012-06-29T02:59:54Z","abstract_excerpt":"Known populations of QSOs appear to fall short of producing the ionizing flux required for re-ionizing the universe. The alternative, galaxies as sources of ionizing photons, suffers from the problem that known types of galaxies are almost completely opaque to ionizing photons. For reionization to happen, either large numbers of (largely undiscovered) sources are required, or the known populations of galaxies need to have had a much larger escape fraction for ionizing radiation in the past. We discuss recent discoveries of faint z~3 Lyman alpha emitters with asymmetric, extended Lyman alpha em"},"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":"1206.6930","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-29T02:59:54Z","cross_cats_sorted":[],"title_canon_sha256":"f9e16c197aeaca1885be86607a808b9e757b0585ce93db4f6dc7e8d5d4f2803c","abstract_canon_sha256":"7473fcfd9df5c6644dde48d99bd66a4b208c4fbdb6ae85720c158e9f21a3f63f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:36.618470Z","signature_b64":"Eukd4jFpHoC5I46WYhTxM5FFqmZh23q1irC+WdZiPVDmmPL2oQbG/Eu6LcZiUOGjGAYXUV5cQUV2dK5TATzKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"798665c8967edb381913ef9375184f00f0d7e8e609ad869975a03b85fb6ef153","last_reissued_at":"2026-05-18T01:56:36.617842Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:36.617842Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Lower Redshift Analogues of the Sources of Reionization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Michael Rauch (Carnegie Observatories)","submitted_at":"2012-06-29T02:59:54Z","abstract_excerpt":"Known populations of QSOs appear to fall short of producing the ionizing flux required for re-ionizing the universe. The alternative, galaxies as sources of ionizing photons, suffers from the problem that known types of galaxies are almost completely opaque to ionizing photons. For reionization to happen, either large numbers of (largely undiscovered) sources are required, or the known populations of galaxies need to have had a much larger escape fraction for ionizing radiation in the past. We discuss recent discoveries of faint z~3 Lyman alpha emitters with asymmetric, extended Lyman alpha em"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.6930","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":""},"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":"1206.6930","created_at":"2026-05-18T01:56:36.617935+00:00"},{"alias_kind":"arxiv_version","alias_value":"1206.6930v1","created_at":"2026-05-18T01:56:36.617935+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.6930","created_at":"2026-05-18T01:56:36.617935+00:00"},{"alias_kind":"pith_short_12","alias_value":"PGDGLSEWP3NT","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_16","alias_value":"PGDGLSEWP3NTQGIT","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_8","alias_value":"PGDGLSEW","created_at":"2026-05-18T12:27:18.751474+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/PGDGLSEWP3NTQGIT56JXKGCPAD","json":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD.json","graph_json":"https://pith.science/api/pith-number/PGDGLSEWP3NTQGIT56JXKGCPAD/graph.json","events_json":"https://pith.science/api/pith-number/PGDGLSEWP3NTQGIT56JXKGCPAD/events.json","paper":"https://pith.science/paper/PGDGLSEW"},"agent_actions":{"view_html":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD","download_json":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD.json","view_paper":"https://pith.science/paper/PGDGLSEW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1206.6930&json=true","fetch_graph":"https://pith.science/api/pith-number/PGDGLSEWP3NTQGIT56JXKGCPAD/graph.json","fetch_events":"https://pith.science/api/pith-number/PGDGLSEWP3NTQGIT56JXKGCPAD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD/action/storage_attestation","attest_author":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD/action/author_attestation","sign_citation":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD/action/citation_signature","submit_replication":"https://pith.science/pith/PGDGLSEWP3NTQGIT56JXKGCPAD/action/replication_record"}},"created_at":"2026-05-18T01:56:36.617935+00:00","updated_at":"2026-05-18T01:56:36.617935+00:00"}