{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:VFCR6DBKVYCUAR2PV5NDJWJQO2","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":"764da9895c8f1ce9c1651cab8b613a2c395a904a6f6e80705ca3b723bf6a4364","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-02T14:15:55Z","title_canon_sha256":"f73c038a538b3d46e435a455e030738f247e930a7cc17d035a4c79a205a0b61d"},"schema_version":"1.0","source":{"id":"2508.01378","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.01378","created_at":"2026-07-05T11:47:38Z"},{"alias_kind":"arxiv_version","alias_value":"2508.01378v1","created_at":"2026-07-05T11:47:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.01378","created_at":"2026-07-05T11:47:38Z"},{"alias_kind":"pith_short_12","alias_value":"VFCR6DBKVYCU","created_at":"2026-07-05T11:47:38Z"},{"alias_kind":"pith_short_16","alias_value":"VFCR6DBKVYCUAR2P","created_at":"2026-07-05T11:47:38Z"},{"alias_kind":"pith_short_8","alias_value":"VFCR6DBK","created_at":"2026-07-05T11:47:38Z"}],"graph_snapshots":[{"event_id":"sha256:16045650ca55a0bf6b2245c920ff39460f9e2bc4ae8dffe4532a74c2f9ba5053","target":"graph","created_at":"2026-07-05T11:47:38Z","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/2508.01378/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Within the framework of spatially covariant theories, we propose a general model for dark energy (DE) in which the cosmological background and perturbations are independently controlled by different sets of coefficients, and the equation of state of DE is directly determined by two free functions of time from the Lagrangian. These properties allow to realize arbitrary background evolutions while avoiding ghost and gradient instabilities in linear perturbations. They also enable a more direct analysis of phantom crossing without having to first solve the background equations of motion. In this ","authors_text":"Alessandra Silvestri, Gen Ye, Zhibang Yao","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-02T14:15:55Z","title":"A General Model for Dark Energy Crossing the Phantom Divide"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.01378","kind":"arxiv","version":1},"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:b0c76d84a5d51f5a0f01a0e15a85de62ffa534918b53e85da1ad89801de8737d","target":"record","created_at":"2026-07-05T11:47:38Z","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":"764da9895c8f1ce9c1651cab8b613a2c395a904a6f6e80705ca3b723bf6a4364","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-08-02T14:15:55Z","title_canon_sha256":"f73c038a538b3d46e435a455e030738f247e930a7cc17d035a4c79a205a0b61d"},"schema_version":"1.0","source":{"id":"2508.01378","kind":"arxiv","version":1}},"canonical_sha256":"a9451f0c2aae0540474faf5a34d93076bfed7af33937dbfbb0852b61ca16a7c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9451f0c2aae0540474faf5a34d93076bfed7af33937dbfbb0852b61ca16a7c8","first_computed_at":"2026-07-05T11:47:38.189440Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:47:38.189440Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cPVYIp2atv+7AaceRXKV2tC8upl/B2Bp3ADbffOh48jN0k6Og6gJG80CLBsjEVPsoGBp0iT/kbnWT98+Cvf2Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:47:38.189894Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.01378","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b0c76d84a5d51f5a0f01a0e15a85de62ffa534918b53e85da1ad89801de8737d","sha256:16045650ca55a0bf6b2245c920ff39460f9e2bc4ae8dffe4532a74c2f9ba5053"],"state_sha256":"a840b441486919ac730f1e8232d8a459fbc2e572b3fb64c6f7e30737b80a0f70"}