{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MTMDGQOEDDX2W2MPAMD6E3KKCW","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":"502e196066e85ec228f3495703e22275372f829532d908f01c6985519ea22350","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-09-02T09:54:50Z","title_canon_sha256":"7ab719d89c685833e87f19e9468e8adc613e77b0dac374b098cc314656e87433"},"schema_version":"1.0","source":{"id":"1809.00321","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00321","created_at":"2026-05-17T23:50:24Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00321v3","created_at":"2026-05-17T23:50:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00321","created_at":"2026-05-17T23:50:24Z"},{"alias_kind":"pith_short_12","alias_value":"MTMDGQOEDDX2","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MTMDGQOEDDX2W2MP","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MTMDGQOE","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:edecf50711682b36a95053a1394c276cdd51f0c1e0ad51c374cdd3c94bafa19e","target":"graph","created_at":"2026-05-17T23:50:24Z","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"},"paper":{"abstract_excerpt":"We propose a new model of $D=4$ Gauss-Bonnet gravity. To avoid the usual property of the integral over the standard $D=4$ Gauss-Bonnet scalar becoming a total derivative term, we employ the formalism of metric-independent non-Riemannian spacetime volume elements which makes the D=4 Gauss-Bonnet action term non-trivial without the need to couple it to matter fields unlike the case of ordinary D=4 Gauss-Bonnet gravity models. The non-Riemannian volume element dynamically triggers the Gauss-Bonnet scalar to be an arbitrary integration constant M on-shell, which in turn has several interesting cos","authors_text":"Eduardo Guendelman, Emil Nissimov, Svetlana Pacheva","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-09-02T09:54:50Z","title":"Gauss-Bonnet Gravity in $D=4$ Without Gauss-Bonnet Coupling to Matter - Cosmological Implications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00321","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:bd0127ca5ccc731bad4a97e2b2176dc2314814424034d44c4f6ed2fbd8cc6841","target":"record","created_at":"2026-05-17T23:50:24Z","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":"502e196066e85ec228f3495703e22275372f829532d908f01c6985519ea22350","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-09-02T09:54:50Z","title_canon_sha256":"7ab719d89c685833e87f19e9468e8adc613e77b0dac374b098cc314656e87433"},"schema_version":"1.0","source":{"id":"1809.00321","kind":"arxiv","version":3}},"canonical_sha256":"64d83341c418efab698f0307e26d4a15ac664ee6ede7b5c5f8233083038f475a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64d83341c418efab698f0307e26d4a15ac664ee6ede7b5c5f8233083038f475a","first_computed_at":"2026-05-17T23:50:24.131205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:24.131205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zt69DIwwEwoXhYQ+tqromjyI493qih2l7o3fe8P2DybfafoQF+SsB63m1k3lKeMDUTTheEtaYjxkOqBQXGgBDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:24.131816Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00321","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd0127ca5ccc731bad4a97e2b2176dc2314814424034d44c4f6ed2fbd8cc6841","sha256:edecf50711682b36a95053a1394c276cdd51f0c1e0ad51c374cdd3c94bafa19e"],"state_sha256":"4c3157e058beeb8412e3f5121bdcab05d71ece2d7c5a87cbb05ff89ccd3069cd"}