{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:CYTLUMLSKOPUHID6RJDP6Z43QS","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":"62d636e7759c7e0c18d155fc539d453a0cbd702a589c4da4a5a39f5a64c1c14a","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-06-03T18:00:01Z","title_canon_sha256":"bbaab3da231cabfa6c218e3a3955fa852e3a9d84dce98b7b9bc2db48c7910a35"},"schema_version":"1.0","source":{"id":"2406.01678","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.01678","created_at":"2026-07-05T09:56:51Z"},{"alias_kind":"arxiv_version","alias_value":"2406.01678v2","created_at":"2026-07-05T09:56:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.01678","created_at":"2026-07-05T09:56:51Z"},{"alias_kind":"pith_short_12","alias_value":"CYTLUMLSKOPU","created_at":"2026-07-05T09:56:51Z"},{"alias_kind":"pith_short_16","alias_value":"CYTLUMLSKOPUHID6","created_at":"2026-07-05T09:56:51Z"},{"alias_kind":"pith_short_8","alias_value":"CYTLUMLS","created_at":"2026-07-05T09:56:51Z"}],"graph_snapshots":[{"event_id":"sha256:0ce6f3ba98b28b9c903bbda4622fdc26f9ac55703ec80786b4eb7f694c084f38","target":"graph","created_at":"2026-07-05T09:56:51Z","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/2406.01678/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Freeze-in via the axion-photon coupling, $g_{\\phi\\gamma}$, can produce axions in the early Universe. At low reheating temperatures close to the minimum allowed value $T_{\\rm reh}\\approx T_{\\rm BBN}\\approx 10\\,{\\rm MeV}$, the abundance peaks for axion masses $m_\\phi\\approx T_{\\rm reh}$. Such heavy axions are unstable and subsequently decay, leading to strong constraints on $g_{\\phi\\gamma}$ from astrophysics and cosmology. In this work, we revisit the computation of the freeze-in abundance and clarify important issues. We begin with a complete computation of the collision terms for the Primakoff","authors_text":"Angelo Maggi, David J.E. Marsh, Mudit Jain, Wen-Yuan Ai","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-06-03T18:00:01Z","title":"New insights into axion freeze-in"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.01678","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":"sha256:2a1e6f70d78dc5277ebb8fa54638a598c9414ec6f62e934f8f1dadf1631b7f66","target":"record","created_at":"2026-07-05T09:56:51Z","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":"62d636e7759c7e0c18d155fc539d453a0cbd702a589c4da4a5a39f5a64c1c14a","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-06-03T18:00:01Z","title_canon_sha256":"bbaab3da231cabfa6c218e3a3955fa852e3a9d84dce98b7b9bc2db48c7910a35"},"schema_version":"1.0","source":{"id":"2406.01678","kind":"arxiv","version":2}},"canonical_sha256":"1626ba3172539f43a07e8a46ff679b84ae262c6eef7ba616edab42551df53fd3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1626ba3172539f43a07e8a46ff679b84ae262c6eef7ba616edab42551df53fd3","first_computed_at":"2026-07-05T09:56:51.997295Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:56:51.997295Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5EuFncmEEnok13xQF5Mth4BPpvtB4BFLK5CAxNgAIkb3NPw+EofvQLWImFLN6QGPZZHDoIQ/vlHloCKX2qoFAg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:56:51.997828Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.01678","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a1e6f70d78dc5277ebb8fa54638a598c9414ec6f62e934f8f1dadf1631b7f66","sha256:0ce6f3ba98b28b9c903bbda4622fdc26f9ac55703ec80786b4eb7f694c084f38"],"state_sha256":"6bd11b328ff1c86f1d908e40b21f2587cb11562993b92eeded163ab591e6c7b5"}