{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:5XAXZ6QWPFUPX4CUAGQP6RUVK4","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":"b037425345d5b0e1d669932fd36024db5515c5bd7ad9dd1de86bd0bf0382d1c0","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-11T09:54:46Z","title_canon_sha256":"3f15c12b54df45e4b454d76cdf759d2b4352f407cfcd5f6fb0e0943a3d737e46"},"schema_version":"1.0","source":{"id":"1502.03236","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03236","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03236v2","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03236","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"pith_short_12","alias_value":"5XAXZ6QWPFUP","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"5XAXZ6QWPFUPX4CU","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"5XAXZ6QW","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:c0edcd000297355e15f7b9369934efcd0a06a60f39251923c0599290bb3a1ab2","target":"graph","created_at":"2026-05-18T02:18:51Z","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 consider Horndeski cosmological models able to screen the vacuum energy coming from any field theory assuming that after this screening the space should be in a de Sitter vacuum with a particular value of the cosmological constant specified by the theory of gravity itself. The most general scalar-tensor cosmological models without higher than second order derivatives in the field equations that have a spatially flat de Sitter critical point for any kind of material content or vacuum energy are, therefore, presented. These models could allow us to understand the current accelerated expansion","authors_text":"Francisco S. N. Lobo, Nelson J. Nunes, Prado Martin-Moruno","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-11T09:54:46Z","title":"Horndeski theories self-tuning to a de Sitter vacuum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03236","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":"sha256:8d3033d2d8ee8ac10eac4a5bc7018fe1b3cf701811b9d4993b5df39515681e12","target":"record","created_at":"2026-05-18T02:18:51Z","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":"b037425345d5b0e1d669932fd36024db5515c5bd7ad9dd1de86bd0bf0382d1c0","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-11T09:54:46Z","title_canon_sha256":"3f15c12b54df45e4b454d76cdf759d2b4352f407cfcd5f6fb0e0943a3d737e46"},"schema_version":"1.0","source":{"id":"1502.03236","kind":"arxiv","version":2}},"canonical_sha256":"edc17cfa167968fbf05401a0ff469557163ec8b0887ceb8dfb729ec32de40393","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"edc17cfa167968fbf05401a0ff469557163ec8b0887ceb8dfb729ec32de40393","first_computed_at":"2026-05-18T02:18:51.248660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:51.248660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gW61CjDiBC5DstwC72RJQ2HCvqQhWheYXq5K1URsVe7lf69xrWqJdBBBEP7yNbdfOWlkVssqlQ8NjWZYW8x5BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:51.249345Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.03236","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d3033d2d8ee8ac10eac4a5bc7018fe1b3cf701811b9d4993b5df39515681e12","sha256:c0edcd000297355e15f7b9369934efcd0a06a60f39251923c0599290bb3a1ab2"],"state_sha256":"58ea315a15f44b517501307406455beef8288622d588cc2c220b825bdb896b71"}