{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:CUU4G7G5J76FIDNMTVHAH6K4YO","short_pith_number":"pith:CUU4G7G5","canonical_record":{"source":{"id":"1109.6748","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-09-30T08:33:56Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"d6711c5cabc6094abc7b58c2fd420358878c12ed24072ac3c399f99834f8a8d5","abstract_canon_sha256":"3ddbba002d4831e22a38b3d770fda1b5091cbc76d9b53182dac1880691c73fb8"},"schema_version":"1.0"},"canonical_sha256":"1529c37cdd4ffc540dac9d4e03f95cc3af5398fa1c7e81b14c2cfb0cf8a29bd2","source":{"kind":"arxiv","id":"1109.6748","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.6748","created_at":"2026-05-18T02:00:21Z"},{"alias_kind":"arxiv_version","alias_value":"1109.6748v2","created_at":"2026-05-18T02:00:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.6748","created_at":"2026-05-18T02:00:21Z"},{"alias_kind":"pith_short_12","alias_value":"CUU4G7G5J76F","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CUU4G7G5J76FIDNM","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CUU4G7G5","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:CUU4G7G5J76FIDNMTVHAH6K4YO","target":"record","payload":{"canonical_record":{"source":{"id":"1109.6748","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-09-30T08:33:56Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"d6711c5cabc6094abc7b58c2fd420358878c12ed24072ac3c399f99834f8a8d5","abstract_canon_sha256":"3ddbba002d4831e22a38b3d770fda1b5091cbc76d9b53182dac1880691c73fb8"},"schema_version":"1.0"},"canonical_sha256":"1529c37cdd4ffc540dac9d4e03f95cc3af5398fa1c7e81b14c2cfb0cf8a29bd2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:21.131613Z","signature_b64":"cas430ZlJKb1ABNublO1nq8WVHfPyR4RHiM/ozH/4CsNrwdUTsnzgBmXbT8ao+WsxSyQbAdOVEmW1LbgvvfaDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1529c37cdd4ffc540dac9d4e03f95cc3af5398fa1c7e81b14c2cfb0cf8a29bd2","last_reissued_at":"2026-05-18T02:00:21.130999Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:21.130999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.6748","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hp27zvNIvBJWNjy3McqLMrj2Wn4zTekhrCLZlHS80Ou/ZxxR9m9YKeIv+/gTxZa+g7o4BhYB/QKacfVdlBtnCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:54:49.503871Z"},"content_sha256":"c2dceeca4c6fa17f5820412f460cef760c97d52c6932155ea2001bf0cc4158c0","schema_version":"1.0","event_id":"sha256:c2dceeca4c6fa17f5820412f460cef760c97d52c6932155ea2001bf0cc4158c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:CUU4G7G5J76FIDNMTVHAH6K4YO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gauss-Bonnet as effective cosmological constant","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Kun Meng, Liu Zhao","submitted_at":"2011-09-30T08:33:56Z","abstract_excerpt":"It is known that Gauss-Bonnet terms in higher dimensional gravity can produce an effective cosmological constant. We add extra examples to this picture by presenting explicitly two branches of accelerating vacuum solutions to the Einstein-Gauss-Bonnet gravities with a bare cosmological constant in 5 and 6 dimensions. Both branches of solutions are of constant curvature and the effective cosmological constants are independent of the acceleration parameter. One branch (the \"-\" branch) of the solutions is well defined in the limit when the Gauss-Bonnet parameter approaches zero, in which case the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.6748","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6OinGzHx5kBvt93KfD0R0GTbvFigdCvemEoka/RBrH9xjfIgja2/bp2cJW2e2vSOzuKDK7hHbV6XAxQUWpQfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:54:49.504210Z"},"content_sha256":"7a829f16628e89a57dd41e3d85bc3785171c4e5246e65ac5b507120c0f4184e1","schema_version":"1.0","event_id":"sha256:7a829f16628e89a57dd41e3d85bc3785171c4e5246e65ac5b507120c0f4184e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CUU4G7G5J76FIDNMTVHAH6K4YO/bundle.json","state_url":"https://pith.science/pith/CUU4G7G5J76FIDNMTVHAH6K4YO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CUU4G7G5J76FIDNMTVHAH6K4YO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-28T10:54:49Z","links":{"resolver":"https://pith.science/pith/CUU4G7G5J76FIDNMTVHAH6K4YO","bundle":"https://pith.science/pith/CUU4G7G5J76FIDNMTVHAH6K4YO/bundle.json","state":"https://pith.science/pith/CUU4G7G5J76FIDNMTVHAH6K4YO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CUU4G7G5J76FIDNMTVHAH6K4YO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:CUU4G7G5J76FIDNMTVHAH6K4YO","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":"3ddbba002d4831e22a38b3d770fda1b5091cbc76d9b53182dac1880691c73fb8","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-09-30T08:33:56Z","title_canon_sha256":"d6711c5cabc6094abc7b58c2fd420358878c12ed24072ac3c399f99834f8a8d5"},"schema_version":"1.0","source":{"id":"1109.6748","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.6748","created_at":"2026-05-18T02:00:21Z"},{"alias_kind":"arxiv_version","alias_value":"1109.6748v2","created_at":"2026-05-18T02:00:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.6748","created_at":"2026-05-18T02:00:21Z"},{"alias_kind":"pith_short_12","alias_value":"CUU4G7G5J76F","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CUU4G7G5J76FIDNM","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CUU4G7G5","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:7a829f16628e89a57dd41e3d85bc3785171c4e5246e65ac5b507120c0f4184e1","target":"graph","created_at":"2026-05-18T02:00:21Z","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":"It is known that Gauss-Bonnet terms in higher dimensional gravity can produce an effective cosmological constant. We add extra examples to this picture by presenting explicitly two branches of accelerating vacuum solutions to the Einstein-Gauss-Bonnet gravities with a bare cosmological constant in 5 and 6 dimensions. Both branches of solutions are of constant curvature and the effective cosmological constants are independent of the acceleration parameter. One branch (the \"-\" branch) of the solutions is well defined in the limit when the Gauss-Bonnet parameter approaches zero, in which case the","authors_text":"Kun Meng, Liu Zhao","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-09-30T08:33:56Z","title":"Gauss-Bonnet as effective cosmological constant"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.6748","kind":"arxiv","version":2},"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:c2dceeca4c6fa17f5820412f460cef760c97d52c6932155ea2001bf0cc4158c0","target":"record","created_at":"2026-05-18T02:00:21Z","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":"3ddbba002d4831e22a38b3d770fda1b5091cbc76d9b53182dac1880691c73fb8","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-09-30T08:33:56Z","title_canon_sha256":"d6711c5cabc6094abc7b58c2fd420358878c12ed24072ac3c399f99834f8a8d5"},"schema_version":"1.0","source":{"id":"1109.6748","kind":"arxiv","version":2}},"canonical_sha256":"1529c37cdd4ffc540dac9d4e03f95cc3af5398fa1c7e81b14c2cfb0cf8a29bd2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1529c37cdd4ffc540dac9d4e03f95cc3af5398fa1c7e81b14c2cfb0cf8a29bd2","first_computed_at":"2026-05-18T02:00:21.130999Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:21.130999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cas430ZlJKb1ABNublO1nq8WVHfPyR4RHiM/ozH/4CsNrwdUTsnzgBmXbT8ao+WsxSyQbAdOVEmW1LbgvvfaDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:21.131613Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.6748","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2dceeca4c6fa17f5820412f460cef760c97d52c6932155ea2001bf0cc4158c0","sha256:7a829f16628e89a57dd41e3d85bc3785171c4e5246e65ac5b507120c0f4184e1"],"state_sha256":"aea41c3910b3755d879bc99c5cf4c0c3ffd4cf482f0d60327e8dce14529594a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zQ9bve92MYjD7WkFMW/SaseDXYXOtB0Gczo2FOK/lUb+MUEI+W1plGB2UTJlJPNAq5m0y1URgvjVTm+rC6XjAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T10:54:49.506186Z","bundle_sha256":"fd0d5d22ff3476bde68e09903855e5a1e7317b68a0de8113575c7de83eb07fa4"}}