{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:47DD7YRZ52SOB2GUUAWVSDEAMW","short_pith_number":"pith:47DD7YRZ","schema_version":"1.0","canonical_sha256":"e7c63fe239eea4e0e8d4a02d590c806596bda195780aa15bda88b95bd6c3c07f","source":{"kind":"arxiv","id":"2505.15884","version":1},"attestation_state":"computed","paper":{"title":"String Theory and Grand Unification Suggest a Sub-Microelectronvolt QCD Axion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Benjamin R. Safdi, Joshua N. Benabou, Katherine Fraser, Mario Reig","submitted_at":"2025-05-21T18:00:00Z","abstract_excerpt":"Axions, grand unification, and string theory are each compelling extensions of the Standard Model. We show that combining these frameworks imposes strong constraints on the QCD axion mass. Using unitarity arguments and explicit string compactifications - such as those from the Kreuzer-Skarke (KS) type IIB ensemble - we find that the axion mass is favored to lie within the range $10^{-11}$ eV $\\lesssim m_a \\lesssim$ $10^{-8}$ eV. This range is directly relevant for near-future axion dark matter searches, including ABRACADABRA/DMRadio and CASPEr. We argue that grand unification and the absence o"},"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":"2505.15884","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-05-21T18:00:00Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"a5beb32ccd57a78ec5408b3158379113b7830f509e1cada4705189fa58dc6f8a","abstract_canon_sha256":"83ff5cdd981f58dac978f77db266d3fcfd32899e8f5810869479e1b91b5b3ead"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:07:27.008407Z","signature_b64":"gmEe3JUD49E9NDgI3XLX1vah3wfZuxdNESBWhFlop3wZTsCmpSYem6MChcdrq/jbjjZu7Yrd9hO8FaZ+LQCgBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7c63fe239eea4e0e8d4a02d590c806596bda195780aa15bda88b95bd6c3c07f","last_reissued_at":"2026-07-05T11:07:27.007902Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:07:27.007902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"String Theory and Grand Unification Suggest a Sub-Microelectronvolt QCD Axion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Benjamin R. Safdi, Joshua N. Benabou, Katherine Fraser, Mario Reig","submitted_at":"2025-05-21T18:00:00Z","abstract_excerpt":"Axions, grand unification, and string theory are each compelling extensions of the Standard Model. We show that combining these frameworks imposes strong constraints on the QCD axion mass. Using unitarity arguments and explicit string compactifications - such as those from the Kreuzer-Skarke (KS) type IIB ensemble - we find that the axion mass is favored to lie within the range $10^{-11}$ eV $\\lesssim m_a \\lesssim$ $10^{-8}$ eV. This range is directly relevant for near-future axion dark matter searches, including ABRACADABRA/DMRadio and CASPEr. We argue that grand unification and the absence o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.15884","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/2505.15884/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":"2505.15884","created_at":"2026-07-05T11:07:27.007958+00:00"},{"alias_kind":"arxiv_version","alias_value":"2505.15884v1","created_at":"2026-07-05T11:07:27.007958+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.15884","created_at":"2026-07-05T11:07:27.007958+00:00"},{"alias_kind":"pith_short_12","alias_value":"47DD7YRZ52SO","created_at":"2026-07-05T11:07:27.007958+00:00"},{"alias_kind":"pith_short_16","alias_value":"47DD7YRZ52SOB2GU","created_at":"2026-07-05T11:07:27.007958+00:00"},{"alias_kind":"pith_short_8","alias_value":"47DD7YRZ","created_at":"2026-07-05T11:07:27.007958+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":9,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.21650","citing_title":"Quantum Gravity Cutoff from Axions: A Type IIB Landscape Study","ref_index":39,"is_internal_anchor":false},{"citing_arxiv_id":"2607.01317","citing_title":"No Evidence for Superradiant Axions in LIGO-Virgo-KAGRA GWTC-5 Binary Black Hole Spins","ref_index":17,"is_internal_anchor":false},{"citing_arxiv_id":"2606.09982","citing_title":"Testing F-theory GUTs with the Axiverse","ref_index":85,"is_internal_anchor":false},{"citing_arxiv_id":"2606.06410","citing_title":"The Atacama Cosmology Telescope: Probing new signatures of ultralight axions with gravitational lensing","ref_index":23,"is_internal_anchor":false},{"citing_arxiv_id":"2605.30413","citing_title":"Quark-Lepton Color-Flavor Unification","ref_index":19,"is_internal_anchor":false},{"citing_arxiv_id":"2605.03963","citing_title":"Constraining F-theory Model Building with QCD Axions","ref_index":68,"is_internal_anchor":false},{"citing_arxiv_id":"2605.05305","citing_title":"Positivity of the gravitational path integral implies the axionic weak gravity conjecture","ref_index":71,"is_internal_anchor":false},{"citing_arxiv_id":"2605.00103","citing_title":"Pre-inflationary QCD axion stars after moduli domination","ref_index":13,"is_internal_anchor":false},{"citing_arxiv_id":"2605.04142","citing_title":"Heterotic String Theory Suggests a QCD Axion Near 0.5 neV","ref_index":52,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW","json":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW.json","graph_json":"https://pith.science/api/pith-number/47DD7YRZ52SOB2GUUAWVSDEAMW/graph.json","events_json":"https://pith.science/api/pith-number/47DD7YRZ52SOB2GUUAWVSDEAMW/events.json","paper":"https://pith.science/paper/47DD7YRZ"},"agent_actions":{"view_html":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW","download_json":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW.json","view_paper":"https://pith.science/paper/47DD7YRZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2505.15884&json=true","fetch_graph":"https://pith.science/api/pith-number/47DD7YRZ52SOB2GUUAWVSDEAMW/graph.json","fetch_events":"https://pith.science/api/pith-number/47DD7YRZ52SOB2GUUAWVSDEAMW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW/action/storage_attestation","attest_author":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW/action/author_attestation","sign_citation":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW/action/citation_signature","submit_replication":"https://pith.science/pith/47DD7YRZ52SOB2GUUAWVSDEAMW/action/replication_record"}},"created_at":"2026-07-05T11:07:27.007958+00:00","updated_at":"2026-07-05T11:07:27.007958+00:00"}