{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:7UYVG7DNYW7APSGXWS6WKX4E25","short_pith_number":"pith:7UYVG7DN","schema_version":"1.0","canonical_sha256":"fd31537c6dc5be07c8d7b4bd655f84d7675980c26ac53f0ef1ee7f6e779641b4","source":{"kind":"arxiv","id":"1404.2958","version":2},"attestation_state":"computed","paper":{"title":"Using Lyman-alpha to detect galaxies that leak Lyman continuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Verhamme, D. Schaerer, I. Orlitova, M. Hayes","submitted_at":"2014-04-10T21:49:24Z","abstract_excerpt":"We propose to infer ionising continuum leaking properties of galaxies by looking at their Lyman-alpha line profiles. We carry out Lyman-alpha radiation transfer calculations in two models of HII regions which are porous to ionising continuum escape: 1) the so-called \"density bounded\" media, in which massive stars produce enough ionising photons to keep the surrounding interstellar medium transparent to the ionising continuum, i.e almost totally ionised, and 2) \"riddled ionisation-bounded\" media, surrounded by neutral interstellar medium, but with holes, i.e. with a covering factor lower than u"},"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":"1404.2958","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-10T21:49:24Z","cross_cats_sorted":[],"title_canon_sha256":"a2607908d888bea7b2fcfbb5138a4b0f5cae8f0341e490a03093e2f8d6e26c0e","abstract_canon_sha256":"77e64eeaf1f3e7e5b45f9af505696fdd113b7a991577dcd33416b06cff4b1be4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:37.784307Z","signature_b64":"UHtU2hViVUBIQYerGxVWLtWzn6v0dbWU4oJL/OwjBaS/NeVIgORr9de7Aknq11Q9W7Iw5NrCHLRZJclNe8rsBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd31537c6dc5be07c8d7b4bd655f84d7675980c26ac53f0ef1ee7f6e779641b4","last_reissued_at":"2026-05-18T02:03:37.783598Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:37.783598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Using Lyman-alpha to detect galaxies that leak Lyman continuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Verhamme, D. Schaerer, I. Orlitova, M. Hayes","submitted_at":"2014-04-10T21:49:24Z","abstract_excerpt":"We propose to infer ionising continuum leaking properties of galaxies by looking at their Lyman-alpha line profiles. We carry out Lyman-alpha radiation transfer calculations in two models of HII regions which are porous to ionising continuum escape: 1) the so-called \"density bounded\" media, in which massive stars produce enough ionising photons to keep the surrounding interstellar medium transparent to the ionising continuum, i.e almost totally ionised, and 2) \"riddled ionisation-bounded\" media, surrounded by neutral interstellar medium, but with holes, i.e. with a covering factor lower than u"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.2958","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":"1404.2958","created_at":"2026-05-18T02:03:37.783719+00:00"},{"alias_kind":"arxiv_version","alias_value":"1404.2958v2","created_at":"2026-05-18T02:03:37.783719+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.2958","created_at":"2026-05-18T02:03:37.783719+00:00"},{"alias_kind":"pith_short_12","alias_value":"7UYVG7DNYW7A","created_at":"2026-05-18T12:28:19.803747+00:00"},{"alias_kind":"pith_short_16","alias_value":"7UYVG7DNYW7APSGX","created_at":"2026-05-18T12:28:19.803747+00:00"},{"alias_kind":"pith_short_8","alias_value":"7UYVG7DN","created_at":"2026-05-18T12:28:19.803747+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/7UYVG7DNYW7APSGXWS6WKX4E25","json":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25.json","graph_json":"https://pith.science/api/pith-number/7UYVG7DNYW7APSGXWS6WKX4E25/graph.json","events_json":"https://pith.science/api/pith-number/7UYVG7DNYW7APSGXWS6WKX4E25/events.json","paper":"https://pith.science/paper/7UYVG7DN"},"agent_actions":{"view_html":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25","download_json":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25.json","view_paper":"https://pith.science/paper/7UYVG7DN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1404.2958&json=true","fetch_graph":"https://pith.science/api/pith-number/7UYVG7DNYW7APSGXWS6WKX4E25/graph.json","fetch_events":"https://pith.science/api/pith-number/7UYVG7DNYW7APSGXWS6WKX4E25/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25/action/storage_attestation","attest_author":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25/action/author_attestation","sign_citation":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25/action/citation_signature","submit_replication":"https://pith.science/pith/7UYVG7DNYW7APSGXWS6WKX4E25/action/replication_record"}},"created_at":"2026-05-18T02:03:37.783719+00:00","updated_at":"2026-05-18T02:03:37.783719+00:00"}