{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:XE7KLJTU6CJECVQHHQ7KH4ELXY","short_pith_number":"pith:XE7KLJTU","schema_version":"1.0","canonical_sha256":"b93ea5a674f0924156073c3ea3f08bbe1f6547a0f2d8ce81cfc13beade66da97","source":{"kind":"arxiv","id":"2608.05296","version":1},"attestation_state":"computed","paper":{"title":"3-form dark energy and cosmic birefringence","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Kohei Kamada, Tucker Manton","submitted_at":"2026-08-05T18:00:16Z","abstract_excerpt":"3-forms are interesting fields to study in the cosmological context for numerous reasons, such as being candidates for explaining inflation and dark energy. The background evolution of a 3-form field is similar to but distinguishable from a scalar field in an expanding universe, and its tensorial structure allows for unique couplings that cannot be experienced by canonical scalars. In this work, we explore the possibility that 3-form dark energy can explain cosmic birefringence. We consider two EFT-inspired couplings between the 3-form and the photon, and compute the birefringence angle $\\beta"},"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":"2608.05296","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-08-05T18:00:16Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"08610b2175a72ce5d8fd27d140c9bea00693be335dd5098b9d9c97e06830f6ac","abstract_canon_sha256":"798db679e26da26ebc30a8122f24eff46f96869ee146097b56ff111ba2667e68"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-07T00:46:51.281693Z","signature_b64":"LDUsZAulBzsHrOxaQZsJOFlJoc36FoIa0ee23HeHyo4kilAwtKpUggT4lKAYQL1AiG46s0IaeGU19eFc0nRRCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b93ea5a674f0924156073c3ea3f08bbe1f6547a0f2d8ce81cfc13beade66da97","last_reissued_at":"2026-08-07T00:46:51.280081Z","signature_status":"signed_v1","first_computed_at":"2026-08-07T00:46:51.280081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"3-form dark energy and cosmic birefringence","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Kohei Kamada, Tucker Manton","submitted_at":"2026-08-05T18:00:16Z","abstract_excerpt":"3-forms are interesting fields to study in the cosmological context for numerous reasons, such as being candidates for explaining inflation and dark energy. The background evolution of a 3-form field is similar to but distinguishable from a scalar field in an expanding universe, and its tensorial structure allows for unique couplings that cannot be experienced by canonical scalars. In this work, we explore the possibility that 3-form dark energy can explain cosmic birefringence. We consider two EFT-inspired couplings between the 3-form and the photon, and compute the birefringence angle $\\beta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.05296","kind":"arxiv","version":1},"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/2608.05296/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":"2608.05296","created_at":"2026-08-07T00:46:51.281489+00:00"},{"alias_kind":"arxiv_version","alias_value":"2608.05296v1","created_at":"2026-08-07T00:46:51.281489+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.05296","created_at":"2026-08-07T00:46:51.281489+00:00"},{"alias_kind":"pith_short_12","alias_value":"XE7KLJTU6CJE","created_at":"2026-08-07T00:46:51.281489+00:00"},{"alias_kind":"pith_short_16","alias_value":"XE7KLJTU6CJECVQH","created_at":"2026-08-07T00:46:51.281489+00:00"},{"alias_kind":"pith_short_8","alias_value":"XE7KLJTU","created_at":"2026-08-07T00:46:51.281489+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2608.05296","citing_title":"3-form dark energy and cosmic birefringence","ref_index":10,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY","json":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY.json","graph_json":"https://pith.science/api/pith-number/XE7KLJTU6CJECVQHHQ7KH4ELXY/graph.json","events_json":"https://pith.science/api/pith-number/XE7KLJTU6CJECVQHHQ7KH4ELXY/events.json","paper":"https://pith.science/paper/XE7KLJTU"},"agent_actions":{"view_html":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY","download_json":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY.json","view_paper":"https://pith.science/paper/XE7KLJTU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2608.05296&json=true","fetch_graph":"https://pith.science/api/pith-number/XE7KLJTU6CJECVQHHQ7KH4ELXY/graph.json","fetch_events":"https://pith.science/api/pith-number/XE7KLJTU6CJECVQHHQ7KH4ELXY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY/action/storage_attestation","attest_author":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY/action/author_attestation","sign_citation":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY/action/citation_signature","submit_replication":"https://pith.science/pith/XE7KLJTU6CJECVQHHQ7KH4ELXY/action/replication_record"}},"created_at":"2026-08-07T00:46:51.281489+00:00","updated_at":"2026-08-07T00:46:51.281489+00:00"}