{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:IACMYRAXJXPDOGLPJFJTOREWD7","short_pith_number":"pith:IACMYRAX","schema_version":"1.0","canonical_sha256":"4004cc44174dde37196f49533744961fe782694fd90c3ec58d859af4cbb28c98","source":{"kind":"arxiv","id":"2404.14816","version":2},"attestation_state":"computed","paper":{"title":"Regular black holes as an alternative to black bounce","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Kirill A. Bronnikov","submitted_at":"2024-04-23T08:02:00Z","abstract_excerpt":"The so-called black bounce mechanism of singularity suppression, proposed by Simpson and Visser, consists in replacing the spherical radius $r$ in the metric tensor with $\\sqrt{r^2 + a^2}$, $a = \\rm const >0$. This removes a singularity at $r=0$ and its neighborhood from space-time, and there emerges a regular minimum of the spherical radius that can be a wormhole throat or a regular bounce (if located inside a black hole). Instead, it is proposed here to make $r=0$ a regular center by proper (Bardeen type) replacements in the metric, preserving its form at large $r$. Such replacements are app"},"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":"2404.14816","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-04-23T08:02:00Z","cross_cats_sorted":[],"title_canon_sha256":"f5ef2a805bc7db2fdb4f6c4cbf53a3f5f605f3f9e788751c4d365437cf9bf312","abstract_canon_sha256":"b8335682b8fd03c10570fc3f18ddf79dcb02a125d4a2220272ec8ac5342b11bf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:12:32.088264Z","signature_b64":"kmiEzsTzWrLqxDA2GHmU2waUDn6U5sSZeDAdFbpxiUOeUyr50ZarxrUHe8vTz8JDbidhBSNQ8y2NoUTmCoGRAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4004cc44174dde37196f49533744961fe782694fd90c3ec58d859af4cbb28c98","last_reissued_at":"2026-07-05T08:12:32.087823Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:12:32.087823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Regular black holes as an alternative to black bounce","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Kirill A. Bronnikov","submitted_at":"2024-04-23T08:02:00Z","abstract_excerpt":"The so-called black bounce mechanism of singularity suppression, proposed by Simpson and Visser, consists in replacing the spherical radius $r$ in the metric tensor with $\\sqrt{r^2 + a^2}$, $a = \\rm const >0$. This removes a singularity at $r=0$ and its neighborhood from space-time, and there emerges a regular minimum of the spherical radius that can be a wormhole throat or a regular bounce (if located inside a black hole). Instead, it is proposed here to make $r=0$ a regular center by proper (Bardeen type) replacements in the metric, preserving its form at large $r$. Such replacements are app"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.14816","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2404.14816/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2404.14816","created_at":"2026-07-05T08:12:32.087874+00:00"},{"alias_kind":"arxiv_version","alias_value":"2404.14816v2","created_at":"2026-07-05T08:12:32.087874+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.14816","created_at":"2026-07-05T08:12:32.087874+00:00"},{"alias_kind":"pith_short_12","alias_value":"IACMYRAXJXPD","created_at":"2026-07-05T08:12:32.087874+00:00"},{"alias_kind":"pith_short_16","alias_value":"IACMYRAXJXPDOGLP","created_at":"2026-07-05T08:12:32.087874+00:00"},{"alias_kind":"pith_short_8","alias_value":"IACMYRAX","created_at":"2026-07-05T08:12:32.087874+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.23021","citing_title":"Periodic Timelike Motion and Gravitational Wave Signatures around a Magnetically Charged Black Hole Surrounded by Quintessence","ref_index":78,"is_internal_anchor":false},{"citing_arxiv_id":"2603.10844","citing_title":"Long-lived quasinormal modes, shadows and particle motion in four-dimensional quasi-topological gravity","ref_index":115,"is_internal_anchor":false},{"citing_arxiv_id":"2603.23556","citing_title":"On regular black string spacetimes in nonlinear electrodynamics","ref_index":46,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7","json":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7.json","graph_json":"https://pith.science/api/pith-number/IACMYRAXJXPDOGLPJFJTOREWD7/graph.json","events_json":"https://pith.science/api/pith-number/IACMYRAXJXPDOGLPJFJTOREWD7/events.json","paper":"https://pith.science/paper/IACMYRAX"},"agent_actions":{"view_html":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7","download_json":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7.json","view_paper":"https://pith.science/paper/IACMYRAX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2404.14816&json=true","fetch_graph":"https://pith.science/api/pith-number/IACMYRAXJXPDOGLPJFJTOREWD7/graph.json","fetch_events":"https://pith.science/api/pith-number/IACMYRAXJXPDOGLPJFJTOREWD7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7/action/storage_attestation","attest_author":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7/action/author_attestation","sign_citation":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7/action/citation_signature","submit_replication":"https://pith.science/pith/IACMYRAXJXPDOGLPJFJTOREWD7/action/replication_record"}},"created_at":"2026-07-05T08:12:32.087874+00:00","updated_at":"2026-07-05T08:12:32.087874+00:00"}