{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:GPRT3IVJE4YIZDGNOFKT22TTRQ","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":"0946b95835c7b3998703bc512021a58057f8d329aac8a8570735d5641da86c99","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-28T15:32:41Z","title_canon_sha256":"2fd7905b786f352296f443e21a647c593e903cafbe1f622171bacd9413cfd1da"},"schema_version":"1.0","source":{"id":"2503.22529","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.22529","created_at":"2026-06-09T01:05:06Z"},{"alias_kind":"arxiv_version","alias_value":"2503.22529v2","created_at":"2026-06-09T01:05:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.22529","created_at":"2026-06-09T01:05:06Z"},{"alias_kind":"pith_short_12","alias_value":"GPRT3IVJE4YI","created_at":"2026-06-09T01:05:06Z"},{"alias_kind":"pith_short_16","alias_value":"GPRT3IVJE4YIZDGN","created_at":"2026-06-09T01:05:06Z"},{"alias_kind":"pith_short_8","alias_value":"GPRT3IVJ","created_at":"2026-06-09T01:05:06Z"}],"graph_snapshots":[{"event_id":"sha256:95ec124a092bb0be9ec216bcb848b6b34b883e75aadfd0a534372bcf64aac163","target":"graph","created_at":"2026-06-09T01:05:06Z","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/2503.22529/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that using a Taylor expansion for the dark energy equation-of-state parameter and limiting it to the zeroth and first-order terms, i.e., the so-called Chevallier-Polarski-Linder (CPL) parametrization in regimes where it has been shown to fail as a physics-based two-parameter model, instead of allowing for higher-order terms and then marginalizing over them, adds extra information not present in the data and leads to markedly different and potentially misleading conclusions. Fixing the higher-order terms to zero, one concludes that vacuum energy that is currently non-dynamical (e.g., th","authors_text":"Glenn D. Starkman, Savvas Nesseris, Yashar Akrami","cross_cats":["gr-qc","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-28T15:32:41Z","title":"To CPL, or not to CPL? What we have not learned about the dark energy equation of state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.22529","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":"sha256:2dff0be05d51544f79513cec9e39e5e3130eb7ef8f27ada1cc1eabb9ff0cdcd4","target":"record","created_at":"2026-06-09T01:05:06Z","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":"0946b95835c7b3998703bc512021a58057f8d329aac8a8570735d5641da86c99","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-28T15:32:41Z","title_canon_sha256":"2fd7905b786f352296f443e21a647c593e903cafbe1f622171bacd9413cfd1da"},"schema_version":"1.0","source":{"id":"2503.22529","kind":"arxiv","version":2}},"canonical_sha256":"33e33da2a927308c8ccd71553d6a738c2fe9e53f8b9c4e88dcddcf25727b14f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33e33da2a927308c8ccd71553d6a738c2fe9e53f8b9c4e88dcddcf25727b14f8","first_computed_at":"2026-06-09T01:05:06.072427Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T01:05:06.072427Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CzK3FTiGeHkuwdBWHQkrUAQU0+3A+eO96UfKjNf1sRUm2k4/Lx4wVz4sj5swxWjsZ/KKo/SfsAB0aFG2PeByDQ==","signature_status":"signed_v1","signed_at":"2026-06-09T01:05:06.072915Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.22529","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2dff0be05d51544f79513cec9e39e5e3130eb7ef8f27ada1cc1eabb9ff0cdcd4","sha256:95ec124a092bb0be9ec216bcb848b6b34b883e75aadfd0a534372bcf64aac163"],"state_sha256":"f869a074286c297f47dfa253b9818b5cef1c571127fdda3d17833dccf178d358"}