{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:ZRYAW4DEBJILESQVMXGNCP73VZ","short_pith_number":"pith:ZRYAW4DE","schema_version":"1.0","canonical_sha256":"cc700b70640a50b24a1565ccd13ffbae40637fe885597848df017ec10042cc4b","source":{"kind":"arxiv","id":"1305.4209","version":2},"attestation_state":"computed","paper":{"title":"Dense spectrum of resonances and spin-1/2 particle capture in a near-black-hole metric","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"G. F. Gribakin, G. H. Gossel, J. C. Berengut, V. V. Flambaum","submitted_at":"2013-05-18T00:08:58Z","abstract_excerpt":"We show that a spin-1/2 particle in the gravitational field of a massive body of radius R which slightly exceeds the Schwarzschild radius r_s, possesses a dense spectrum of narrow resonances. Their lifetimes and density tend to infinity in the limit R -> r_s. We determine the cross section of the particle capture into these resonances and show that it is equal to the spin-1/2 absorption cross section for a Schwarzschild black hole. Thus black-hole properties may emerge in a non-singular static metric prior to the formation of a black hole."},"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":"1305.4209","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-05-18T00:08:58Z","cross_cats_sorted":[],"title_canon_sha256":"2c5c8ce72c249b512d52980ede6c6481d68f71bbb2dcd7ded47252668531d6aa","abstract_canon_sha256":"3e5d552f44139af6cbb74b9bd3b37eeccfd385325ac1d2c02c96e44b74f046a6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:12.937067Z","signature_b64":"y+Qgm7SDIfVp/04MjOf7ikJammxQd3quT9W6UeX19eINvYOtiqJuQzktxhXCkQYuBnKBzynrAo2cp8dqB6ZoBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc700b70640a50b24a1565ccd13ffbae40637fe885597848df017ec10042cc4b","last_reissued_at":"2026-05-18T03:19:12.936365Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:12.936365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dense spectrum of resonances and spin-1/2 particle capture in a near-black-hole metric","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"G. F. Gribakin, G. H. Gossel, J. C. Berengut, V. V. Flambaum","submitted_at":"2013-05-18T00:08:58Z","abstract_excerpt":"We show that a spin-1/2 particle in the gravitational field of a massive body of radius R which slightly exceeds the Schwarzschild radius r_s, possesses a dense spectrum of narrow resonances. Their lifetimes and density tend to infinity in the limit R -> r_s. We determine the cross section of the particle capture into these resonances and show that it is equal to the spin-1/2 absorption cross section for a Schwarzschild black hole. Thus black-hole properties may emerge in a non-singular static metric prior to the formation of a black hole."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4209","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":"1305.4209","created_at":"2026-05-18T03:19:12.936461+00:00"},{"alias_kind":"arxiv_version","alias_value":"1305.4209v2","created_at":"2026-05-18T03:19:12.936461+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4209","created_at":"2026-05-18T03:19:12.936461+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZRYAW4DEBJIL","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZRYAW4DEBJILESQV","created_at":"2026-05-18T12:28:09.283467+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZRYAW4DE","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/ZRYAW4DEBJILESQVMXGNCP73VZ","json":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ.json","graph_json":"https://pith.science/api/pith-number/ZRYAW4DEBJILESQVMXGNCP73VZ/graph.json","events_json":"https://pith.science/api/pith-number/ZRYAW4DEBJILESQVMXGNCP73VZ/events.json","paper":"https://pith.science/paper/ZRYAW4DE"},"agent_actions":{"view_html":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ","download_json":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ.json","view_paper":"https://pith.science/paper/ZRYAW4DE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1305.4209&json=true","fetch_graph":"https://pith.science/api/pith-number/ZRYAW4DEBJILESQVMXGNCP73VZ/graph.json","fetch_events":"https://pith.science/api/pith-number/ZRYAW4DEBJILESQVMXGNCP73VZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ/action/storage_attestation","attest_author":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ/action/author_attestation","sign_citation":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ/action/citation_signature","submit_replication":"https://pith.science/pith/ZRYAW4DEBJILESQVMXGNCP73VZ/action/replication_record"}},"created_at":"2026-05-18T03:19:12.936461+00:00","updated_at":"2026-05-18T03:19:12.936461+00:00"}