{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:QKMZF6GQMUCAJYN6J3R522KJVJ","short_pith_number":"pith:QKMZF6GQ","schema_version":"1.0","canonical_sha256":"829992f8d0650404e1be4ee3dd6949aa5cd09587d60b98683679d0629117860a","source":{"kind":"arxiv","id":"astro-ph/0501348","version":3},"attestation_state":"computed","paper":{"title":"Magnetic domain walls of relic fermions as Dark Energy","license":"","headline":"","cross_cats":["cond-mat.str-el","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Urjit A. Yajnik","submitted_at":"2005-01-17T19:18:42Z","abstract_excerpt":"We show that relic fermions of the Big Bang can enter a ferromagnetic state if they possess a magnetic moment and satisfy the requirements of Stoner theory of itinerant ferromagnetism. The domain walls of this ferromagnetism can successfully simulate Dark Energy over the observable epoch spanning $\\sim 10$ billion years. We obtain conditions on the anomalous magnetic moment of such fermions and their masses. Known neutrinos fail to satisfy the requirements thus pointing to the possibility of a new ultralight sector in Particle Physics."},"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":"astro-ph/0501348","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-01-17T19:18:42Z","cross_cats_sorted":["cond-mat.str-el","hep-ph","hep-th"],"title_canon_sha256":"90890e7d19f9aaaf0ea96138edca931560cbec67122641eeb5ad481e5b9bffbc","abstract_canon_sha256":"bafc4a2819ae8caf6dc4bcfceacda8895c184c7d7c2ca0fd1e9cd6872af6c21c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:40:25.901636Z","signature_b64":"BuQQSzdppNeoOyxi7SsSEegtcLv/kz86jEMzQFGUIuSFrFKK6wssQfpJmzQg3ZQSsHn7TboviKz4zLnmFgoVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"829992f8d0650404e1be4ee3dd6949aa5cd09587d60b98683679d0629117860a","last_reissued_at":"2026-05-18T02:40:25.901182Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:40:25.901182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Magnetic domain walls of relic fermions as Dark Energy","license":"","headline":"","cross_cats":["cond-mat.str-el","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Urjit A. Yajnik","submitted_at":"2005-01-17T19:18:42Z","abstract_excerpt":"We show that relic fermions of the Big Bang can enter a ferromagnetic state if they possess a magnetic moment and satisfy the requirements of Stoner theory of itinerant ferromagnetism. The domain walls of this ferromagnetism can successfully simulate Dark Energy over the observable epoch spanning $\\sim 10$ billion years. We obtain conditions on the anomalous magnetic moment of such fermions and their masses. Known neutrinos fail to satisfy the requirements thus pointing to the possibility of a new ultralight sector in Particle Physics."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0501348","kind":"arxiv","version":3},"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":"astro-ph/0501348","created_at":"2026-05-18T02:40:25.901252+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0501348v3","created_at":"2026-05-18T02:40:25.901252+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0501348","created_at":"2026-05-18T02:40:25.901252+00:00"},{"alias_kind":"pith_short_12","alias_value":"QKMZF6GQMUCA","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_16","alias_value":"QKMZF6GQMUCAJYN6","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_8","alias_value":"QKMZF6GQ","created_at":"2026-05-18T12:25:53.335082+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/QKMZF6GQMUCAJYN6J3R522KJVJ","json":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ.json","graph_json":"https://pith.science/api/pith-number/QKMZF6GQMUCAJYN6J3R522KJVJ/graph.json","events_json":"https://pith.science/api/pith-number/QKMZF6GQMUCAJYN6J3R522KJVJ/events.json","paper":"https://pith.science/paper/QKMZF6GQ"},"agent_actions":{"view_html":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ","download_json":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ.json","view_paper":"https://pith.science/paper/QKMZF6GQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0501348&json=true","fetch_graph":"https://pith.science/api/pith-number/QKMZF6GQMUCAJYN6J3R522KJVJ/graph.json","fetch_events":"https://pith.science/api/pith-number/QKMZF6GQMUCAJYN6J3R522KJVJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ/action/storage_attestation","attest_author":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ/action/author_attestation","sign_citation":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ/action/citation_signature","submit_replication":"https://pith.science/pith/QKMZF6GQMUCAJYN6J3R522KJVJ/action/replication_record"}},"created_at":"2026-05-18T02:40:25.901252+00:00","updated_at":"2026-05-18T02:40:25.901252+00:00"}