{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:6DJHORUQRVVCENFZYRPS5KF3QU","short_pith_number":"pith:6DJHORUQ","schema_version":"1.0","canonical_sha256":"f0d27746908d6a2234b9c45f2ea8bb85322ae38fc40a747c004f0125e88b4f67","source":{"kind":"arxiv","id":"2005.06494","version":1},"attestation_state":"computed","paper":{"title":"Nothing is certain in string compactifications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"I\\~naki Garc\\'ia Etxebarria, Irene Valenzuela, Kepa Sousa, Miguel Montero","submitted_at":"2020-05-13T18:05:13Z","abstract_excerpt":"A bubble of nothing is a spacetime instability where a compact dimension collapses. After nucleation, it expands at the speed of light, leaving \"nothing\" behind. We argue that the topological and dynamical mechanisms which could protect a compactification against decay to nothing seem to be absent in string compactifications once supersymmetry is broken. The topological obstruction lies in a bordism group and, surprisingly, it can disappear even for a SUSY-compatible spin structure. As a proof of principle, we construct an explicit bubble of nothing for a $T^3$ with completely periodic (SUSY-c"},"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":"2005.06494","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-05-13T18:05:13Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"8716a2ee3f507beea14a20f8380132f5c83f12f79c8010cf4fc4c1a20ffca953","abstract_canon_sha256":"996c65e0d342e2a24bba36387d6a0f79797468980a9730abc84475319a7a5697"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:02:47.307137Z","signature_b64":"oCdUx2PGY9CRnsCFbVjEKYimn8HYC5FzvIbjvO6vV7zxeSOZfoWaISNvYkwIR/mW1XFFTure4+ixF2LnzXl4BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f0d27746908d6a2234b9c45f2ea8bb85322ae38fc40a747c004f0125e88b4f67","last_reissued_at":"2026-07-05T01:02:47.306663Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:02:47.306663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nothing is certain in string compactifications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"I\\~naki Garc\\'ia Etxebarria, Irene Valenzuela, Kepa Sousa, Miguel Montero","submitted_at":"2020-05-13T18:05:13Z","abstract_excerpt":"A bubble of nothing is a spacetime instability where a compact dimension collapses. After nucleation, it expands at the speed of light, leaving \"nothing\" behind. We argue that the topological and dynamical mechanisms which could protect a compactification against decay to nothing seem to be absent in string compactifications once supersymmetry is broken. The topological obstruction lies in a bordism group and, surprisingly, it can disappear even for a SUSY-compatible spin structure. As a proof of principle, we construct an explicit bubble of nothing for a $T^3$ with completely periodic (SUSY-c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.06494","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/2005.06494/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":"2005.06494","created_at":"2026-07-05T01:02:47.306738+00:00"},{"alias_kind":"arxiv_version","alias_value":"2005.06494v1","created_at":"2026-07-05T01:02:47.306738+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.06494","created_at":"2026-07-05T01:02:47.306738+00:00"},{"alias_kind":"pith_short_12","alias_value":"6DJHORUQRVVC","created_at":"2026-07-05T01:02:47.306738+00:00"},{"alias_kind":"pith_short_16","alias_value":"6DJHORUQRVVCENFZ","created_at":"2026-07-05T01:02:47.306738+00:00"},{"alias_kind":"pith_short_8","alias_value":"6DJHORUQ","created_at":"2026-07-05T01:02:47.306738+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":10,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.06668","citing_title":"A more effective QCD string at colliders: Decay of excited strings and the worldsheet axion","ref_index":14,"is_internal_anchor":false},{"citing_arxiv_id":"2606.04933","citing_title":"$\\text{AdS}_D\\times I$ solutions in axio-dilaton gravity","ref_index":14,"is_internal_anchor":false},{"citing_arxiv_id":"2606.04938","citing_title":"AdS$_9$ solutions in type II supergravities","ref_index":20,"is_internal_anchor":false},{"citing_arxiv_id":"2605.15276","citing_title":"Bordisms between 9d type IIB supergravities and commutator widths of duality groups","ref_index":135,"is_internal_anchor":false},{"citing_arxiv_id":"2605.23886","citing_title":"Heterotic Strings on Enriques Surfaces","ref_index":5,"is_internal_anchor":false},{"citing_arxiv_id":"2605.23886","citing_title":"Heterotic Strings on Enriques Surfaces","ref_index":5,"is_internal_anchor":false},{"citing_arxiv_id":"2410.21372","citing_title":"Morse-Bott inequalities, Topology Change and Cobordisms to Nothing","ref_index":30,"is_internal_anchor":false},{"citing_arxiv_id":"2605.15276","citing_title":"Bordisms between 9d type IIB supergravities and commutator widths of duality groups","ref_index":135,"is_internal_anchor":false},{"citing_arxiv_id":"2509.24703","citing_title":"Aspects of strings without spacetime supersymmetry","ref_index":252,"is_internal_anchor":false},{"citing_arxiv_id":"2605.09868","citing_title":"Double fibration in G-theory and the cobordism conjecture","ref_index":32,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU","json":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU.json","graph_json":"https://pith.science/api/pith-number/6DJHORUQRVVCENFZYRPS5KF3QU/graph.json","events_json":"https://pith.science/api/pith-number/6DJHORUQRVVCENFZYRPS5KF3QU/events.json","paper":"https://pith.science/paper/6DJHORUQ"},"agent_actions":{"view_html":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU","download_json":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU.json","view_paper":"https://pith.science/paper/6DJHORUQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2005.06494&json=true","fetch_graph":"https://pith.science/api/pith-number/6DJHORUQRVVCENFZYRPS5KF3QU/graph.json","fetch_events":"https://pith.science/api/pith-number/6DJHORUQRVVCENFZYRPS5KF3QU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU/action/storage_attestation","attest_author":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU/action/author_attestation","sign_citation":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU/action/citation_signature","submit_replication":"https://pith.science/pith/6DJHORUQRVVCENFZYRPS5KF3QU/action/replication_record"}},"created_at":"2026-07-05T01:02:47.306738+00:00","updated_at":"2026-07-05T01:02:47.306738+00:00"}