{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:IWB3EGODR5TXJ5ROBWOXW2GAZM","short_pith_number":"pith:IWB3EGOD","schema_version":"1.0","canonical_sha256":"4583b219c38f6774f62e0d9d7b68c0cb081e07a5c9de25d1e386566b3fcc1ff5","source":{"kind":"arxiv","id":"0911.1294","version":3},"attestation_state":"computed","paper":{"title":"Population III Star Clusters in the Reionized Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Jarrett L. Johnson (MPE)","submitted_at":"2009-11-06T16:35:47Z","abstract_excerpt":"In reionized regions of the Universe, gas can only collapse to form stars in dark matter (DM) haloes which grow to be sufficiently massive. If star formation is prevented in the minihalo progenitors of such DM haloes at redshifts z >~ 20, then these haloes will not be self-enriched with metals and so may host Population (Pop) III star formation. We estimate an upper limit for the abundance of Pop III star clusters which thus form in the reionized Universe, as a function of redshift. Depending on the minimum DM halo mass for star formation, between of the order of one and of the order of a thou"},"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":"0911.1294","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-06T16:35:47Z","cross_cats_sorted":[],"title_canon_sha256":"06e20f9cc6783c47a2120c1d7b18287fdf9c56ddf64e877ad7f6b3603ae87908","abstract_canon_sha256":"61a41f1699b081abd09b858fb5675009373a9febef58d09c7aeac185211259f1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:58.685889Z","signature_b64":"v8lNQHDLlcYybOYiSbKIXobLNYFNir5Ry466WQfFDFRdutR6xnf5qiQsSSH9ptyRp/it8lOALAfAmmnLaA0sCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4583b219c38f6774f62e0d9d7b68c0cb081e07a5c9de25d1e386566b3fcc1ff5","last_reissued_at":"2026-05-18T02:10:58.685090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:58.685090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Population III Star Clusters in the Reionized Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Jarrett L. Johnson (MPE)","submitted_at":"2009-11-06T16:35:47Z","abstract_excerpt":"In reionized regions of the Universe, gas can only collapse to form stars in dark matter (DM) haloes which grow to be sufficiently massive. If star formation is prevented in the minihalo progenitors of such DM haloes at redshifts z >~ 20, then these haloes will not be self-enriched with metals and so may host Population (Pop) III star formation. We estimate an upper limit for the abundance of Pop III star clusters which thus form in the reionized Universe, as a function of redshift. Depending on the minimum DM halo mass for star formation, between of the order of one and of the order of a thou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.1294","kind":"arxiv","version":3},"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":"0911.1294","created_at":"2026-05-18T02:10:58.685221+00:00"},{"alias_kind":"arxiv_version","alias_value":"0911.1294v3","created_at":"2026-05-18T02:10:58.685221+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.1294","created_at":"2026-05-18T02:10:58.685221+00:00"},{"alias_kind":"pith_short_12","alias_value":"IWB3EGODR5TX","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"IWB3EGODR5TXJ5RO","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"IWB3EGOD","created_at":"2026-05-18T12:26:00.592388+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/IWB3EGODR5TXJ5ROBWOXW2GAZM","json":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM.json","graph_json":"https://pith.science/api/pith-number/IWB3EGODR5TXJ5ROBWOXW2GAZM/graph.json","events_json":"https://pith.science/api/pith-number/IWB3EGODR5TXJ5ROBWOXW2GAZM/events.json","paper":"https://pith.science/paper/IWB3EGOD"},"agent_actions":{"view_html":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM","download_json":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM.json","view_paper":"https://pith.science/paper/IWB3EGOD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0911.1294&json=true","fetch_graph":"https://pith.science/api/pith-number/IWB3EGODR5TXJ5ROBWOXW2GAZM/graph.json","fetch_events":"https://pith.science/api/pith-number/IWB3EGODR5TXJ5ROBWOXW2GAZM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM/action/storage_attestation","attest_author":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM/action/author_attestation","sign_citation":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM/action/citation_signature","submit_replication":"https://pith.science/pith/IWB3EGODR5TXJ5ROBWOXW2GAZM/action/replication_record"}},"created_at":"2026-05-18T02:10:58.685221+00:00","updated_at":"2026-05-18T02:10:58.685221+00:00"}