{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:LNZQ2PZOYBROOMVXZDWLOIKFCG","short_pith_number":"pith:LNZQ2PZO","schema_version":"1.0","canonical_sha256":"5b730d3f2ec062e732b7c8ecb7214511b2015d9b922595adcde7b7eaff47aaa7","source":{"kind":"arxiv","id":"2209.07804","version":2},"attestation_state":"computed","paper":{"title":"Isotropic cosmic birefringence from early dark energy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Eiichiro Komatsu, Fumihiro Naokawa, Kai Murai, Toshiya Namikawa","submitted_at":"2022-09-16T09:07:51Z","abstract_excerpt":"A tantalizing hint of isotropic cosmic birefringence has been found in the $E B$ cross-power spectrum of the cosmic microwave background (CMB) polarization data with a statistical significance of $3\\sigma$. A pseudoscalar field coupled to the CMB photons via the Chern-Simons term can explain this observation. The same field may also be responsible for early dark energy (EDE), which alleviates the so-called Hubble tension. Since the EDE field evolves significantly during the recombination epoch, the conventional formula that relates $E B$ to the difference between the $E$- and $B$-mode auto-pow"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2209.07804","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-09-16T09:07:51Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"afbe39bc4bcd02a5af8ad5cae306ac381be680a894c144635b630c2ee03a5d78","abstract_canon_sha256":"9c9ad2f3aaa11f5dd41ffc8eb422905e58631e55053542333d0047005e80040f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:48:38.915094Z","signature_b64":"G7FykKRkyI6jlx2D0/us0hgFcvJVvp7Md9wbmLPa39joFGC02i/oL1ae7zRIuFPn1wUPE7taTEOKi4Z8hJrkCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b730d3f2ec062e732b7c8ecb7214511b2015d9b922595adcde7b7eaff47aaa7","last_reissued_at":"2026-07-05T05:48:38.914650Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:48:38.914650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Isotropic cosmic birefringence from early dark energy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Eiichiro Komatsu, Fumihiro Naokawa, Kai Murai, Toshiya Namikawa","submitted_at":"2022-09-16T09:07:51Z","abstract_excerpt":"A tantalizing hint of isotropic cosmic birefringence has been found in the $E B$ cross-power spectrum of the cosmic microwave background (CMB) polarization data with a statistical significance of $3\\sigma$. A pseudoscalar field coupled to the CMB photons via the Chern-Simons term can explain this observation. The same field may also be responsible for early dark energy (EDE), which alleviates the so-called Hubble tension. Since the EDE field evolves significantly during the recombination epoch, the conventional formula that relates $E B$ to the difference between the $E$- and $B$-mode auto-pow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.07804","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2209.07804/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2209.07804","created_at":"2026-07-05T05:48:38.914714+00:00"},{"alias_kind":"arxiv_version","alias_value":"2209.07804v2","created_at":"2026-07-05T05:48:38.914714+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.07804","created_at":"2026-07-05T05:48:38.914714+00:00"},{"alias_kind":"pith_short_12","alias_value":"LNZQ2PZOYBRO","created_at":"2026-07-05T05:48:38.914714+00:00"},{"alias_kind":"pith_short_16","alias_value":"LNZQ2PZOYBROOMVX","created_at":"2026-07-05T05:48:38.914714+00:00"},{"alias_kind":"pith_short_8","alias_value":"LNZQ2PZO","created_at":"2026-07-05T05:48:38.914714+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.26116","citing_title":"Unifying Early and Late Dark Energy: Dynamical Requirements and Obstructions","ref_index":90,"is_internal_anchor":false},{"citing_arxiv_id":"2211.04492","citing_title":"The Hubble Tension and Early Dark Energy","ref_index":113,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG","json":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG.json","graph_json":"https://pith.science/api/pith-number/LNZQ2PZOYBROOMVXZDWLOIKFCG/graph.json","events_json":"https://pith.science/api/pith-number/LNZQ2PZOYBROOMVXZDWLOIKFCG/events.json","paper":"https://pith.science/paper/LNZQ2PZO"},"agent_actions":{"view_html":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG","download_json":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG.json","view_paper":"https://pith.science/paper/LNZQ2PZO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2209.07804&json=true","fetch_graph":"https://pith.science/api/pith-number/LNZQ2PZOYBROOMVXZDWLOIKFCG/graph.json","fetch_events":"https://pith.science/api/pith-number/LNZQ2PZOYBROOMVXZDWLOIKFCG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG/action/storage_attestation","attest_author":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG/action/author_attestation","sign_citation":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG/action/citation_signature","submit_replication":"https://pith.science/pith/LNZQ2PZOYBROOMVXZDWLOIKFCG/action/replication_record"}},"created_at":"2026-07-05T05:48:38.914714+00:00","updated_at":"2026-07-05T05:48:38.914714+00:00"}