{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:ZJ2DT2DYLHZY4CU6MZPN7VVLD3","short_pith_number":"pith:ZJ2DT2DY","schema_version":"1.0","canonical_sha256":"ca7439e87859f38e0a9e665edfd6ab1ee86606ea21eff846c4bdc3058f58a91f","source":{"kind":"arxiv","id":"1312.6462","version":1},"attestation_state":"computed","paper":{"title":"Upper Bound on the First Star Formation History","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Alberto Dom\\'inguez, Grzegorz M. Madejski, Yasuyuki T. Tanaka, Yoshiyuki Inoue","submitted_at":"2013-12-23T03:24:15Z","abstract_excerpt":"Our understanding of the nature of the extragalactic background light (EBL) has improved with the recent development of gamma-ray observation techniques. An open subject in the context of the EBL is the reionization epoch, which is an important probe of the formation history of first stars, the so-called Population III (Pop III) stars. Although the mechanisms for the formation of Pop III stars are rather well understood on theoretical grounds, their formation history is still veiled in mystery because of their faintness. To shed light into this matter, we study jointly the gamma-ray opacity of"},"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":"1312.6462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-12-23T03:24:15Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"7d4f6b63265758902781b10c1103fe8f3c5a82b577bc38768d7b296fac2d2062","abstract_canon_sha256":"04eb6bd9fedabb186425be8de9e7ab750c6af7f2dde2f90b3a5a8022ee08b105"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:42.638792Z","signature_b64":"7YatkdVwgsyg3bBzlR84w4i+jZeeIT3W+G2hXCYRl034tq/sq39LqN41iX2PY99Rrqmw+0AacC1P0oenk7L4CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca7439e87859f38e0a9e665edfd6ab1ee86606ea21eff846c4bdc3058f58a91f","last_reissued_at":"2026-05-18T01:45:42.638011Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:42.638011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Upper Bound on the First Star Formation History","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Alberto Dom\\'inguez, Grzegorz M. Madejski, Yasuyuki T. Tanaka, Yoshiyuki Inoue","submitted_at":"2013-12-23T03:24:15Z","abstract_excerpt":"Our understanding of the nature of the extragalactic background light (EBL) has improved with the recent development of gamma-ray observation techniques. An open subject in the context of the EBL is the reionization epoch, which is an important probe of the formation history of first stars, the so-called Population III (Pop III) stars. Although the mechanisms for the formation of Pop III stars are rather well understood on theoretical grounds, their formation history is still veiled in mystery because of their faintness. To shed light into this matter, we study jointly the gamma-ray opacity of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.6462","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":"1312.6462","created_at":"2026-05-18T01:45:42.638155+00:00"},{"alias_kind":"arxiv_version","alias_value":"1312.6462v1","created_at":"2026-05-18T01:45:42.638155+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.6462","created_at":"2026-05-18T01:45:42.638155+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZJ2DT2DYLHZY","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZJ2DT2DYLHZY4CU6","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZJ2DT2DY","created_at":"2026-05-18T12:28:09.283467+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/ZJ2DT2DYLHZY4CU6MZPN7VVLD3","json":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3.json","graph_json":"https://pith.science/api/pith-number/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/graph.json","events_json":"https://pith.science/api/pith-number/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/events.json","paper":"https://pith.science/paper/ZJ2DT2DY"},"agent_actions":{"view_html":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3","download_json":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3.json","view_paper":"https://pith.science/paper/ZJ2DT2DY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1312.6462&json=true","fetch_graph":"https://pith.science/api/pith-number/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/graph.json","fetch_events":"https://pith.science/api/pith-number/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/action/storage_attestation","attest_author":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/action/author_attestation","sign_citation":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/action/citation_signature","submit_replication":"https://pith.science/pith/ZJ2DT2DYLHZY4CU6MZPN7VVLD3/action/replication_record"}},"created_at":"2026-05-18T01:45:42.638155+00:00","updated_at":"2026-05-18T01:45:42.638155+00:00"}