{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:T6NAHEYN63HCSRJNWKGMC5WBJX","short_pith_number":"pith:T6NAHEYN","schema_version":"1.0","canonical_sha256":"9f9a03930df6ce29452db28cc176c14dcbc87ee321e61017e494f401a5878fea","source":{"kind":"arxiv","id":"1805.00409","version":2},"attestation_state":"computed","paper":{"title":"The photo-disintegration of $^4$He on the cosmic microwave background is less severe than earlier thought","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Diego F. Torres, Jorge F. Soriano, Luis A. Anchordoqui","submitted_at":"2018-05-01T16:09:48Z","abstract_excerpt":"We thoroughly study the photo-disintegration of $^4$He on the cosmic microwave background using the most recent cross-section data both from the inclusive measurement observing the analog of the giant dipole resonance in $^4$He through the charge-exchange spin-flip $^4$He ($^7$Li,$^7$Be) reaction and from measurements of exclusive two-body and three-body processes: $^4{\\rm He} \\, (\\gamma,p)\\, ^3{\\rm H}$, $^4{\\rm He} \\, (\\gamma,n) \\, ^3{\\rm He}$, and $^4$He $(\\gamma, pn)$ $^2$H. We show that the present-day (redshift $z=0$) mean free path of ultra-relativistic (Lorentz factor $\\sim 10^{10}$) he"},"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":"1805.00409","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-05-01T16:09:48Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"32359ad1f1d0c159f9f87504316afc103a85da28a10df1af764f9904d182c2bd","abstract_canon_sha256":"fbb0418c498f1421614a1c6d48a1eac562d6fc0b7a5d159191a8bb3ed684b47a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:41.942440Z","signature_b64":"G6baZU6IpRDMc+T64Gz3cDW3hobhS24vQgaolQ7SwQ1MhjOn6iaZOmdeoiW7UluZ66R7kp1h3bm8gqRbemyLAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f9a03930df6ce29452db28cc176c14dcbc87ee321e61017e494f401a5878fea","last_reissued_at":"2026-05-18T00:08:41.941709Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:41.941709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The photo-disintegration of $^4$He on the cosmic microwave background is less severe than earlier thought","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Diego F. Torres, Jorge F. Soriano, Luis A. Anchordoqui","submitted_at":"2018-05-01T16:09:48Z","abstract_excerpt":"We thoroughly study the photo-disintegration of $^4$He on the cosmic microwave background using the most recent cross-section data both from the inclusive measurement observing the analog of the giant dipole resonance in $^4$He through the charge-exchange spin-flip $^4$He ($^7$Li,$^7$Be) reaction and from measurements of exclusive two-body and three-body processes: $^4{\\rm He} \\, (\\gamma,p)\\, ^3{\\rm H}$, $^4{\\rm He} \\, (\\gamma,n) \\, ^3{\\rm He}$, and $^4$He $(\\gamma, pn)$ $^2$H. We show that the present-day (redshift $z=0$) mean free path of ultra-relativistic (Lorentz factor $\\sim 10^{10}$) he"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.00409","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":""},"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":"1805.00409","created_at":"2026-05-18T00:08:41.941814+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.00409v2","created_at":"2026-05-18T00:08:41.941814+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.00409","created_at":"2026-05-18T00:08:41.941814+00:00"},{"alias_kind":"pith_short_12","alias_value":"T6NAHEYN63HC","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"T6NAHEYN63HCSRJN","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"T6NAHEYN","created_at":"2026-05-18T12:32:53.628368+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX","json":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX.json","graph_json":"https://pith.science/api/pith-number/T6NAHEYN63HCSRJNWKGMC5WBJX/graph.json","events_json":"https://pith.science/api/pith-number/T6NAHEYN63HCSRJNWKGMC5WBJX/events.json","paper":"https://pith.science/paper/T6NAHEYN"},"agent_actions":{"view_html":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX","download_json":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX.json","view_paper":"https://pith.science/paper/T6NAHEYN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.00409&json=true","fetch_graph":"https://pith.science/api/pith-number/T6NAHEYN63HCSRJNWKGMC5WBJX/graph.json","fetch_events":"https://pith.science/api/pith-number/T6NAHEYN63HCSRJNWKGMC5WBJX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX/action/storage_attestation","attest_author":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX/action/author_attestation","sign_citation":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX/action/citation_signature","submit_replication":"https://pith.science/pith/T6NAHEYN63HCSRJNWKGMC5WBJX/action/replication_record"}},"created_at":"2026-05-18T00:08:41.941814+00:00","updated_at":"2026-05-18T00:08:41.941814+00:00"}