{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1991:QM62KKGBY3H7GF4ZUYBKMW2XRG","short_pith_number":"pith:QM62KKGB","schema_version":"1.0","canonical_sha256":"833da528c1c6cff31799a602a65b578992eb6ed9a7e0a710b5476a37dc6dc29c","source":{"kind":"arxiv","id":"hep-th/9112023","version":1},"attestation_state":"computed","paper":{"title":"String and Fivebrane Solitons: Singular or Non-singular?","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"J.X. Lu, M.J. Duff, R.R. Khuri","submitted_at":"1991-12-10T22:30:53Z","abstract_excerpt":"We ask whether the recently discovered superstring and superfivebrane solutions of D=10 supergravity admit the interpretation of non-singular solitons even though, in the absence of Yang-Mills fields, they exhibit curvature singularities at the origin. We answer the question using a test probe/source approach, and find that the nature of the singularity is probe-dependent. If the test probe and source are both superstrings or both superfivebranes, one falls into the other in a finite proper time and the singularity is real, whereas if one is a superstring and the other a superfivebrane it take"},"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":"hep-th/9112023","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1991-12-10T22:30:53Z","cross_cats_sorted":[],"title_canon_sha256":"b3ae050bd2751f639684b94de46a31f8abf103aa468ab0dd165153bb6fb0866f","abstract_canon_sha256":"8df57b029f98839773d225c0eca9e19eb3b5ba2599dbf347c9a0280ecf4e584d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:55:00.163044Z","signature_b64":"+qErFCNVqggixraJ7PbmQNwD3h3p/dl7r+EWGXvGWZA4pVjhcyCT/UP9Kx0b4RJrXqY1lvwWW6P1DRDSr4UqBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"833da528c1c6cff31799a602a65b578992eb6ed9a7e0a710b5476a37dc6dc29c","last_reissued_at":"2026-07-04T15:55:00.162648Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:55:00.162648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"String and Fivebrane Solitons: Singular or Non-singular?","license":"","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"J.X. Lu, M.J. Duff, R.R. Khuri","submitted_at":"1991-12-10T22:30:53Z","abstract_excerpt":"We ask whether the recently discovered superstring and superfivebrane solutions of D=10 supergravity admit the interpretation of non-singular solitons even though, in the absence of Yang-Mills fields, they exhibit curvature singularities at the origin. We answer the question using a test probe/source approach, and find that the nature of the singularity is probe-dependent. If the test probe and source are both superstrings or both superfivebranes, one falls into the other in a finite proper time and the singularity is real, whereas if one is a superstring and the other a superfivebrane it take"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9112023","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-th/9112023/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":"hep-th/9112023","created_at":"2026-07-04T15:55:00.162713+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9112023v1","created_at":"2026-07-04T15:55:00.162713+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9112023","created_at":"2026-07-04T15:55:00.162713+00:00"},{"alias_kind":"pith_short_12","alias_value":"QM62KKGBY3H7","created_at":"2026-07-04T15:55:00.162713+00:00"},{"alias_kind":"pith_short_16","alias_value":"QM62KKGBY3H7GF4Z","created_at":"2026-07-04T15:55:00.162713+00:00"},{"alias_kind":"pith_short_8","alias_value":"QM62KKGB","created_at":"2026-07-04T15:55:00.162713+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/QM62KKGBY3H7GF4ZUYBKMW2XRG","json":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG.json","graph_json":"https://pith.science/api/pith-number/QM62KKGBY3H7GF4ZUYBKMW2XRG/graph.json","events_json":"https://pith.science/api/pith-number/QM62KKGBY3H7GF4ZUYBKMW2XRG/events.json","paper":"https://pith.science/paper/QM62KKGB"},"agent_actions":{"view_html":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG","download_json":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG.json","view_paper":"https://pith.science/paper/QM62KKGB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/9112023&json=true","fetch_graph":"https://pith.science/api/pith-number/QM62KKGBY3H7GF4ZUYBKMW2XRG/graph.json","fetch_events":"https://pith.science/api/pith-number/QM62KKGBY3H7GF4ZUYBKMW2XRG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG/action/storage_attestation","attest_author":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG/action/author_attestation","sign_citation":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG/action/citation_signature","submit_replication":"https://pith.science/pith/QM62KKGBY3H7GF4ZUYBKMW2XRG/action/replication_record"}},"created_at":"2026-07-04T15:55:00.162713+00:00","updated_at":"2026-07-04T15:55:00.162713+00:00"}