{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WUE2SGVXWODEMFTZSHOUG2NZXF","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ec7953a65be9f26c30c78c9381f0492b08bb80c3f670da349e52d9968f34d829","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-26T17:51:48Z","title_canon_sha256":"1857bd301bc07179822d0a50b4d709cd9aabf4ae290ca484c507d5a08fd534ec"},"schema_version":"1.0","source":{"id":"1904.11967","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.11967","created_at":"2026-07-05T03:06:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.11967v3","created_at":"2026-07-05T03:06:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.11967","created_at":"2026-07-05T03:06:09Z"},{"alias_kind":"pith_short_12","alias_value":"WUE2SGVXWODE","created_at":"2026-07-05T03:06:09Z"},{"alias_kind":"pith_short_16","alias_value":"WUE2SGVXWODEMFTZ","created_at":"2026-07-05T03:06:09Z"},{"alias_kind":"pith_short_8","alias_value":"WUE2SGVX","created_at":"2026-07-05T03:06:09Z"}],"graph_snapshots":[{"event_id":"sha256:10332a279b639a8a8cd51471ef15ed196aff459a0bd1929ced380d92e173b4aa","target":"graph","created_at":"2026-07-05T03:06:09Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1904.11967/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is known that the Einstein gravitational field equations in $D>4$ spacetime dimensions have no time-independent non-singular compactification solutions to de Sitter space if the $D$-dimensional stress tensor satisfies the Strong Energy Condition (SEC). Here we show, by example, that the SEC alone does not exclude time-dependent non-singular compactifications to de Sitter space, in Einstein conformal frame. However, this possibility is excluded by the combined SEC and Null Energy Condition (NEC) because the NEC forces a time-evolution towards a singular $D$-metric.","authors_text":"J. G. Russo, P. K. Townsend","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-26T17:51:48Z","title":"Time-dependent compactification to de Sitter space: a no-go theorem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.11967","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f1bb91f6b818a8645f8a8231198767f3bfe7db9ef561457d536f03c711fd6a54","target":"record","created_at":"2026-07-05T03:06:09Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ec7953a65be9f26c30c78c9381f0492b08bb80c3f670da349e52d9968f34d829","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-26T17:51:48Z","title_canon_sha256":"1857bd301bc07179822d0a50b4d709cd9aabf4ae290ca484c507d5a08fd534ec"},"schema_version":"1.0","source":{"id":"1904.11967","kind":"arxiv","version":3}},"canonical_sha256":"b509a91ab7b38646167991dd4369b9b9673ecdec7c9dc8a6d53140ba7e080476","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b509a91ab7b38646167991dd4369b9b9673ecdec7c9dc8a6d53140ba7e080476","first_computed_at":"2026-07-05T03:06:09.086655Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:06:09.086655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cPIcDn0oufvCUl65NooUUHp00QfA6qRw2SUBPHsAvYcLMNs0vgoSAfMSzDyCaQbmb7krZW9v2h2FcydL2ARwCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:06:09.087121Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.11967","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f1bb91f6b818a8645f8a8231198767f3bfe7db9ef561457d536f03c711fd6a54","sha256:10332a279b639a8a8cd51471ef15ed196aff459a0bd1929ced380d92e173b4aa"],"state_sha256":"f0f4a4c3cf7b491af34176a55569f80712e634d7eab2e06bed18e7b3637368d2"}