{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:FHF5IFGXI5CSALNRMFZX6R7TNN","short_pith_number":"pith:FHF5IFGX","schema_version":"1.0","canonical_sha256":"29cbd414d74745202db161737f47f36b5a7893bfd98d0bc8dcf977776c680413","source":{"kind":"arxiv","id":"2607.22415","version":1},"attestation_state":"computed","paper":{"title":"Dark matter-baryons elastic coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"David Figueruelo, Florencia Anabella Teppa Pannia","submitted_at":"2026-07-24T15:32:12Z","abstract_excerpt":"We consider a cosmological model where dark matter and baryons interact via a pure momentum transfer. We present the foundations of the interaction and derive its main equations. In this framework, only the Euler equations for the two interacting components differ from those in the standard scenario. We also explain how this interaction relates with the common Tight-Coupling Approximation schemes typically used in many Boltzmann solver. After that, we implement the model in CLASS and CAMB Boltzmann solvers, which relay on those Tight-Coupling Approximation schemes and in SymBoltz, which is fre"},"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":"2607.22415","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-07-24T15:32:12Z","cross_cats_sorted":[],"title_canon_sha256":"d9352dfb053525f0667e030c2440d82959907b8011055c626e8e2655280b33dc","abstract_canon_sha256":"1f47cef54e108c6377eb087915059526a710403f67c491e6515f9aa3c0fe1a0b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-27T01:21:19.798486Z","signature_b64":"zr88/FDzuGMakaCqsi42Yo4XDp55KmFqfvbKlc4JaM9fu88bDSPsrz87k7QOpF8gWE99G8/sK190oF7aK950Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29cbd414d74745202db161737f47f36b5a7893bfd98d0bc8dcf977776c680413","last_reissued_at":"2026-07-27T01:21:19.797655Z","signature_status":"signed_v1","first_computed_at":"2026-07-27T01:21:19.797655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dark matter-baryons elastic coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"David Figueruelo, Florencia Anabella Teppa Pannia","submitted_at":"2026-07-24T15:32:12Z","abstract_excerpt":"We consider a cosmological model where dark matter and baryons interact via a pure momentum transfer. We present the foundations of the interaction and derive its main equations. In this framework, only the Euler equations for the two interacting components differ from those in the standard scenario. We also explain how this interaction relates with the common Tight-Coupling Approximation schemes typically used in many Boltzmann solver. After that, we implement the model in CLASS and CAMB Boltzmann solvers, which relay on those Tight-Coupling Approximation schemes and in SymBoltz, which is fre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.22415","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/2607.22415/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":"2607.22415","created_at":"2026-07-27T01:21:19.798078+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.22415v1","created_at":"2026-07-27T01:21:19.798078+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.22415","created_at":"2026-07-27T01:21:19.798078+00:00"},{"alias_kind":"pith_short_12","alias_value":"FHF5IFGXI5CS","created_at":"2026-07-27T01:21:19.798078+00:00"},{"alias_kind":"pith_short_16","alias_value":"FHF5IFGXI5CSALNR","created_at":"2026-07-27T01:21:19.798078+00:00"},{"alias_kind":"pith_short_8","alias_value":"FHF5IFGX","created_at":"2026-07-27T01:21:19.798078+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/FHF5IFGXI5CSALNRMFZX6R7TNN","json":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN.json","graph_json":"https://pith.science/api/pith-number/FHF5IFGXI5CSALNRMFZX6R7TNN/graph.json","events_json":"https://pith.science/api/pith-number/FHF5IFGXI5CSALNRMFZX6R7TNN/events.json","paper":"https://pith.science/paper/FHF5IFGX"},"agent_actions":{"view_html":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN","download_json":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN.json","view_paper":"https://pith.science/paper/FHF5IFGX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.22415&json=true","fetch_graph":"https://pith.science/api/pith-number/FHF5IFGXI5CSALNRMFZX6R7TNN/graph.json","fetch_events":"https://pith.science/api/pith-number/FHF5IFGXI5CSALNRMFZX6R7TNN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN/action/storage_attestation","attest_author":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN/action/author_attestation","sign_citation":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN/action/citation_signature","submit_replication":"https://pith.science/pith/FHF5IFGXI5CSALNRMFZX6R7TNN/action/replication_record"}},"created_at":"2026-07-27T01:21:19.798078+00:00","updated_at":"2026-07-27T01:21:19.798078+00:00"}