{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:ENJEN2RRPZYOIXUUJ4HEKUP2S4","short_pith_number":"pith:ENJEN2RR","schema_version":"1.0","canonical_sha256":"235246ea317e70e45e944f0e4551fa9725871eee1a022b830a65d95bb2e9de81","source":{"kind":"arxiv","id":"2212.07884","version":2},"attestation_state":"computed","paper":{"title":"Mass-varying Dark Matter from a Phase Transition","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"hep-ph","authors_text":"Neelima Sehgal, Sayan Mandal","submitted_at":"2022-12-15T15:09:21Z","abstract_excerpt":"We propose a mass-varying dark matter (MVDM) model consisting of a scalar field and a fermionic field interacting via a simple Yukawa coupling, and containing an exponential self-interaction potential for the scalar field. Analyzing the evolution of this coupled scalar-fermion system in an expanding Universe, we find that it initially behaves like radiation but then undergoes a phase transition after which it behaves like pressureless dark matter. The one free parameter of this model is the temperature at which the phase transition occurs; the mass of the dark matter particle, given by the mas"},"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":"2212.07884","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2022-12-15T15:09:21Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"95893332abb27225819e54bce77b63cc5f12b3c2720e907a19590428f84a3a14","abstract_canon_sha256":"f792bdbb0b778672eb78248b93b3545c11b85e5cb9f0dd90740e3e9024773194"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:40:50.771448Z","signature_b64":"xeEPVx5PzNbDqNDl3FQDD2vVxHT5eqfM6lLndUijd7xsp0ThcdiFRRX21+hV1suNriRxz4reTYVbxtSdqJz9Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"235246ea317e70e45e944f0e4551fa9725871eee1a022b830a65d95bb2e9de81","last_reissued_at":"2026-07-05T07:40:50.770994Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:40:50.770994Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mass-varying Dark Matter from a Phase Transition","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"hep-ph","authors_text":"Neelima Sehgal, Sayan Mandal","submitted_at":"2022-12-15T15:09:21Z","abstract_excerpt":"We propose a mass-varying dark matter (MVDM) model consisting of a scalar field and a fermionic field interacting via a simple Yukawa coupling, and containing an exponential self-interaction potential for the scalar field. Analyzing the evolution of this coupled scalar-fermion system in an expanding Universe, we find that it initially behaves like radiation but then undergoes a phase transition after which it behaves like pressureless dark matter. The one free parameter of this model is the temperature at which the phase transition occurs; the mass of the dark matter particle, given by the mas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.07884","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2212.07884/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":"2212.07884","created_at":"2026-07-05T07:40:50.771054+00:00"},{"alias_kind":"arxiv_version","alias_value":"2212.07884v2","created_at":"2026-07-05T07:40:50.771054+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.07884","created_at":"2026-07-05T07:40:50.771054+00:00"},{"alias_kind":"pith_short_12","alias_value":"ENJEN2RRPZYO","created_at":"2026-07-05T07:40:50.771054+00:00"},{"alias_kind":"pith_short_16","alias_value":"ENJEN2RRPZYOIXUU","created_at":"2026-07-05T07:40:50.771054+00:00"},{"alias_kind":"pith_short_8","alias_value":"ENJEN2RR","created_at":"2026-07-05T07:40:50.771054+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.08080","citing_title":"CMB Limits on the Absorption of Light Vector and Axial-Vector Dark Matter","ref_index":70,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4","json":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4.json","graph_json":"https://pith.science/api/pith-number/ENJEN2RRPZYOIXUUJ4HEKUP2S4/graph.json","events_json":"https://pith.science/api/pith-number/ENJEN2RRPZYOIXUUJ4HEKUP2S4/events.json","paper":"https://pith.science/paper/ENJEN2RR"},"agent_actions":{"view_html":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4","download_json":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4.json","view_paper":"https://pith.science/paper/ENJEN2RR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2212.07884&json=true","fetch_graph":"https://pith.science/api/pith-number/ENJEN2RRPZYOIXUUJ4HEKUP2S4/graph.json","fetch_events":"https://pith.science/api/pith-number/ENJEN2RRPZYOIXUUJ4HEKUP2S4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4/action/storage_attestation","attest_author":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4/action/author_attestation","sign_citation":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4/action/citation_signature","submit_replication":"https://pith.science/pith/ENJEN2RRPZYOIXUUJ4HEKUP2S4/action/replication_record"}},"created_at":"2026-07-05T07:40:50.771054+00:00","updated_at":"2026-07-05T07:40:50.771054+00:00"}