{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:JOJXVFLXP33YN6B3FUK4LEH4VD","short_pith_number":"pith:JOJXVFLX","schema_version":"1.0","canonical_sha256":"4b937a95777ef786f83b2d15c590fca8c59674b01516c281d909978bdf91d182","source":{"kind":"arxiv","id":"2012.09865","version":1},"attestation_state":"computed","paper":{"title":"Cosmological and astrophysical probes of dark baryons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","hep-ex"],"primary_cat":"hep-ph","authors_text":"David McKeen, Maxim Pospelov, Nirmal Raj","submitted_at":"2020-12-17T19:00:00Z","abstract_excerpt":"We examine the cosmological and astrophysical signatures of a \"dark baryon,\" a neutral fermion that mixes with the neutron. As the mixing is through a higher-dimensional operator at the quark level, production of the dark baryon at high energies is enhanced so that its abundance in the early universe may be significant. Treating its initial abundance as a free parameter, we derive new, powerful limits on the properties of the dark baryon. Primordial nucleosynthesis and the cosmic microwave background provide strong constraints due to the inter-conversion of neutrons to dark baryons through the"},"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":"2012.09865","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2020-12-17T19:00:00Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","hep-ex"],"title_canon_sha256":"aca24245695e901ab342fb6035fbcfffd846215d3980c38b6f290e16ec06be12","abstract_canon_sha256":"f2092ee589ed3aafc49f34127fdbdf530de083d74bc660d19ff41a260dcda32f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:47:29.182088Z","signature_b64":"VWWNAWgtxwpAY67UB8npQ+c/E2293ae2jxm2nE3LoZXtwizt8j4c3im/KQV2KPnhm5ARPwBcyFXuJBR3Ap9PBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b937a95777ef786f83b2d15c590fca8c59674b01516c281d909978bdf91d182","last_reissued_at":"2026-07-05T02:47:29.181617Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:47:29.181617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Cosmological and astrophysical probes of dark baryons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","hep-ex"],"primary_cat":"hep-ph","authors_text":"David McKeen, Maxim Pospelov, Nirmal Raj","submitted_at":"2020-12-17T19:00:00Z","abstract_excerpt":"We examine the cosmological and astrophysical signatures of a \"dark baryon,\" a neutral fermion that mixes with the neutron. As the mixing is through a higher-dimensional operator at the quark level, production of the dark baryon at high energies is enhanced so that its abundance in the early universe may be significant. Treating its initial abundance as a free parameter, we derive new, powerful limits on the properties of the dark baryon. Primordial nucleosynthesis and the cosmic microwave background provide strong constraints due to the inter-conversion of neutrons to dark baryons through the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.09865","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/2012.09865/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":"2012.09865","created_at":"2026-07-05T02:47:29.181679+00:00"},{"alias_kind":"arxiv_version","alias_value":"2012.09865v1","created_at":"2026-07-05T02:47:29.181679+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.09865","created_at":"2026-07-05T02:47:29.181679+00:00"},{"alias_kind":"pith_short_12","alias_value":"JOJXVFLXP33Y","created_at":"2026-07-05T02:47:29.181679+00:00"},{"alias_kind":"pith_short_16","alias_value":"JOJXVFLXP33YN6B3","created_at":"2026-07-05T02:47:29.181679+00:00"},{"alias_kind":"pith_short_8","alias_value":"JOJXVFLX","created_at":"2026-07-05T02:47:29.181679+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.20792","citing_title":"Minimal Proton-Mass Dark Matter","ref_index":39,"is_internal_anchor":false},{"citing_arxiv_id":"2604.21168","citing_title":"Neutron Portal and Dark Matter-Baryon Coincidence: from UV Completion to Phenomenology","ref_index":70,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD","json":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD.json","graph_json":"https://pith.science/api/pith-number/JOJXVFLXP33YN6B3FUK4LEH4VD/graph.json","events_json":"https://pith.science/api/pith-number/JOJXVFLXP33YN6B3FUK4LEH4VD/events.json","paper":"https://pith.science/paper/JOJXVFLX"},"agent_actions":{"view_html":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD","download_json":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD.json","view_paper":"https://pith.science/paper/JOJXVFLX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2012.09865&json=true","fetch_graph":"https://pith.science/api/pith-number/JOJXVFLXP33YN6B3FUK4LEH4VD/graph.json","fetch_events":"https://pith.science/api/pith-number/JOJXVFLXP33YN6B3FUK4LEH4VD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD/action/storage_attestation","attest_author":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD/action/author_attestation","sign_citation":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD/action/citation_signature","submit_replication":"https://pith.science/pith/JOJXVFLXP33YN6B3FUK4LEH4VD/action/replication_record"}},"created_at":"2026-07-05T02:47:29.181679+00:00","updated_at":"2026-07-05T02:47:29.181679+00:00"}