{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EJTFZNWT4FIIIJS46LQVEYE74Q","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":"46fef328287d1f4e722a6e8bab518ca49f608d348830cbb29ad8a52d3abc79d4","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-24T17:46:11Z","title_canon_sha256":"6965a74024bdb044813c090caf196d173477c84573b06f0f3f149f1d17d65a9c"},"schema_version":"1.0","source":{"id":"2503.18924","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.18924","created_at":"2026-07-05T11:46:41Z"},{"alias_kind":"arxiv_version","alias_value":"2503.18924v3","created_at":"2026-07-05T11:46:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.18924","created_at":"2026-07-05T11:46:41Z"},{"alias_kind":"pith_short_12","alias_value":"EJTFZNWT4FII","created_at":"2026-07-05T11:46:41Z"},{"alias_kind":"pith_short_16","alias_value":"EJTFZNWT4FIIIJS4","created_at":"2026-07-05T11:46:41Z"},{"alias_kind":"pith_short_8","alias_value":"EJTFZNWT","created_at":"2026-07-05T11:46:41Z"}],"graph_snapshots":[{"event_id":"sha256:b183e861888908a52d137c4de072bf96eab41bff48f70aa456749f5e9213074e","target":"graph","created_at":"2026-07-05T11:46:41Z","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/2503.18924/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent cosmological observations have revealed growing tensions with the standard $\\Lambda$CDM model, including indications of isotropic cosmic birefringence and deviations from $w = -1$ in the dark energy equation of state, as suggested by DESI and supernova measurements. In this paper, we point out that such deviations can arise even from a subdominant energy density component. We then propose a unified framework based on a dynamical axion field that simultaneously accounts for both anomalies, providing a simple and natural extension of the standard $\\Lambda$CDM model. In our scenario, the a","authors_text":"Masaki Yamada, Shota Nakagawa, Yu-Cheng Qiu, Yuichiro Nakai","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-24T17:46:11Z","title":"Interpreting Cosmic Birefringence and DESI Data with Evolving Axion in $\\Lambda$CDM"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.18924","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":"sha256:97fad659cc283b4ad790f14a7c15cc65667b186f2b9195c4889352f58558928c","target":"record","created_at":"2026-07-05T11:46:41Z","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":"46fef328287d1f4e722a6e8bab518ca49f608d348830cbb29ad8a52d3abc79d4","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-24T17:46:11Z","title_canon_sha256":"6965a74024bdb044813c090caf196d173477c84573b06f0f3f149f1d17d65a9c"},"schema_version":"1.0","source":{"id":"2503.18924","kind":"arxiv","version":3}},"canonical_sha256":"22665cb6d3e15084265cf2e152609fe4153f6854235bfc60ffd2ffa651d5cb76","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22665cb6d3e15084265cf2e152609fe4153f6854235bfc60ffd2ffa651d5cb76","first_computed_at":"2026-07-05T11:46:41.417273Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:46:41.417273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YTApBv4Xoet1SScrIV1joBmrAxJ/G6t/nLTouhf/eR0dtV2Ac0Z+nHz2vZO4ncy4y0JV+/ZB6dEBENZUzD66BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:46:41.417728Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.18924","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97fad659cc283b4ad790f14a7c15cc65667b186f2b9195c4889352f58558928c","sha256:b183e861888908a52d137c4de072bf96eab41bff48f70aa456749f5e9213074e"],"state_sha256":"795aa364fba0f74119a5e831ca9bd99deb927e611de7c662fcd42e8e71a43d6d"}