{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:CAT63HIX22PFOC5AFKGZWGYJ6S","short_pith_number":"pith:CAT63HIX","schema_version":"1.0","canonical_sha256":"1027ed9d17d69e570ba02a8d9b1b09f49601675a32bf3077deda2df468bc720d","source":{"kind":"arxiv","id":"0812.4217","version":1},"attestation_state":"computed","paper":{"title":"Fermions Tunneling from Apparent Horizon of FRW Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Dun-Fu Shi, Ji-rong Ren, Ran Li","submitted_at":"2008-12-22T15:25:45Z","abstract_excerpt":"In the paper [arXiv:0809.1554], the scalar particles' Hawking radiation from the apparent horizon of Friedmann-Robertson-Walker(FRW) universe was investigated by using the tunneling formalism. They obtained the Hawking temperature associated with the apparent horizon, which was extensively applied in investigating the relationship between the first law of thermodynamics and Friedmann equations. In this paper, we calculate Fermions' Hawking radiation from the apparent horizon of FRW universe via tunneling formalism. Applying WKB approximation to the general covariant Dirac equation in FRW space"},"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":"0812.4217","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-12-22T15:25:45Z","cross_cats_sorted":[],"title_canon_sha256":"7dacacf269c9913c6e168f8e7e69ab0d23e8547cd5f0e23953a32dcb993a49e5","abstract_canon_sha256":"cd2ea91cd67c1bb796df2fe41d0848ee81ae0d93a48893637630c3942752271b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:35:08.602479Z","signature_b64":"AHQTHjdgZbFyYNt2OpU94vNC8KedZbH7++Y3KfWueK7jc/1GokymK1lZajwHudCP6utH829AuXure7RJTXgMDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1027ed9d17d69e570ba02a8d9b1b09f49601675a32bf3077deda2df468bc720d","last_reissued_at":"2026-05-18T02:35:08.602068Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:35:08.602068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fermions Tunneling from Apparent Horizon of FRW Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Dun-Fu Shi, Ji-rong Ren, Ran Li","submitted_at":"2008-12-22T15:25:45Z","abstract_excerpt":"In the paper [arXiv:0809.1554], the scalar particles' Hawking radiation from the apparent horizon of Friedmann-Robertson-Walker(FRW) universe was investigated by using the tunneling formalism. They obtained the Hawking temperature associated with the apparent horizon, which was extensively applied in investigating the relationship between the first law of thermodynamics and Friedmann equations. In this paper, we calculate Fermions' Hawking radiation from the apparent horizon of FRW universe via tunneling formalism. Applying WKB approximation to the general covariant Dirac equation in FRW space"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4217","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":"0812.4217","created_at":"2026-05-18T02:35:08.602129+00:00"},{"alias_kind":"arxiv_version","alias_value":"0812.4217v1","created_at":"2026-05-18T02:35:08.602129+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.4217","created_at":"2026-05-18T02:35:08.602129+00:00"},{"alias_kind":"pith_short_12","alias_value":"CAT63HIX22PF","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"CAT63HIX22PFOC5A","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"CAT63HIX","created_at":"2026-05-18T12:25:57.157939+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.18551","citing_title":"Scalar$-$Tensor Gravity as a Probe of Generalized Black Hole Entropy","ref_index":30,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S","json":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S.json","graph_json":"https://pith.science/api/pith-number/CAT63HIX22PFOC5AFKGZWGYJ6S/graph.json","events_json":"https://pith.science/api/pith-number/CAT63HIX22PFOC5AFKGZWGYJ6S/events.json","paper":"https://pith.science/paper/CAT63HIX"},"agent_actions":{"view_html":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S","download_json":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S.json","view_paper":"https://pith.science/paper/CAT63HIX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0812.4217&json=true","fetch_graph":"https://pith.science/api/pith-number/CAT63HIX22PFOC5AFKGZWGYJ6S/graph.json","fetch_events":"https://pith.science/api/pith-number/CAT63HIX22PFOC5AFKGZWGYJ6S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S/action/storage_attestation","attest_author":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S/action/author_attestation","sign_citation":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S/action/citation_signature","submit_replication":"https://pith.science/pith/CAT63HIX22PFOC5AFKGZWGYJ6S/action/replication_record"}},"created_at":"2026-05-18T02:35:08.602129+00:00","updated_at":"2026-05-18T02:35:08.602129+00:00"}