{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:J6YF2NG32ULSTUVBVBHVG5MHPA","short_pith_number":"pith:J6YF2NG3","schema_version":"1.0","canonical_sha256":"4fb05d34dbd51729d2a1a84f5375877803c64fc50af39c105e1e5c1b150df9f5","source":{"kind":"arxiv","id":"2509.20235","version":2},"attestation_state":"computed","paper":{"title":"$S_8$ from peculiar velocities: agreement with Planck for Tully--Fisher and supernovae, tension for the fundamental plane","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Richard Stiskalek","submitted_at":"2025-09-24T15:25:11Z","abstract_excerpt":"Peculiar velocity measurements constrain the parameter combination $f\\sigma_8$, the product of the linear growth rate $f$ and the fluctuation amplitude $\\sigma_8$. Under the approximation that $f$ is a monotonic function of $\\Omega_{\\rm m}$, this can be related to $S_8 \\equiv \\sigma_8 \\sqrt{\\Omega_{\\rm m}/0.3}$, enabling direct comparison with weak lensing and cosmic microwave background results. We use three classes of direct-distance tracers -- the Tully--Fisher relation, the fundamental plane, and Type Ia supernovae -- to infer peculiar velocities. A unified hierarchical forward model joint"},"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":"2509.20235","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-09-24T15:25:11Z","cross_cats_sorted":[],"title_canon_sha256":"0ed3022eee972629efa68556c8c8234f689a2409195a41502f374653f2229c08","abstract_canon_sha256":"f6dc1940f7b8559b772594950eb71d3bbd10f05ad99505c35c23ccd524e2d3f1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-03T01:17:13.233919Z","signature_b64":"CYV89vXhPyJqTQseQlExzWw5yrpJXhRhqWlww8oKHbd27NWScx2LNCxNp3UT8zumdYlLAgleBd2Qgy96yOjlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4fb05d34dbd51729d2a1a84f5375877803c64fc50af39c105e1e5c1b150df9f5","last_reissued_at":"2026-07-03T01:17:13.233456Z","signature_status":"signed_v1","first_computed_at":"2026-07-03T01:17:13.233456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"$S_8$ from peculiar velocities: agreement with Planck for Tully--Fisher and supernovae, tension for the fundamental plane","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Richard Stiskalek","submitted_at":"2025-09-24T15:25:11Z","abstract_excerpt":"Peculiar velocity measurements constrain the parameter combination $f\\sigma_8$, the product of the linear growth rate $f$ and the fluctuation amplitude $\\sigma_8$. Under the approximation that $f$ is a monotonic function of $\\Omega_{\\rm m}$, this can be related to $S_8 \\equiv \\sigma_8 \\sqrt{\\Omega_{\\rm m}/0.3}$, enabling direct comparison with weak lensing and cosmic microwave background results. We use three classes of direct-distance tracers -- the Tully--Fisher relation, the fundamental plane, and Type Ia supernovae -- to infer peculiar velocities. A unified hierarchical forward model joint"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.20235","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/2509.20235/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":"2509.20235","created_at":"2026-07-03T01:17:13.233515+00:00"},{"alias_kind":"arxiv_version","alias_value":"2509.20235v2","created_at":"2026-07-03T01:17:13.233515+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.20235","created_at":"2026-07-03T01:17:13.233515+00:00"},{"alias_kind":"pith_short_12","alias_value":"J6YF2NG32ULS","created_at":"2026-07-03T01:17:13.233515+00:00"},{"alias_kind":"pith_short_16","alias_value":"J6YF2NG32ULSTUVB","created_at":"2026-07-03T01:17:13.233515+00:00"},{"alias_kind":"pith_short_8","alias_value":"J6YF2NG3","created_at":"2026-07-03T01:17:13.233515+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.07777","citing_title":"The Status of Single Scalar Field Dark Energy","ref_index":164,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA","json":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA.json","graph_json":"https://pith.science/api/pith-number/J6YF2NG32ULSTUVBVBHVG5MHPA/graph.json","events_json":"https://pith.science/api/pith-number/J6YF2NG32ULSTUVBVBHVG5MHPA/events.json","paper":"https://pith.science/paper/J6YF2NG3"},"agent_actions":{"view_html":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA","download_json":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA.json","view_paper":"https://pith.science/paper/J6YF2NG3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2509.20235&json=true","fetch_graph":"https://pith.science/api/pith-number/J6YF2NG32ULSTUVBVBHVG5MHPA/graph.json","fetch_events":"https://pith.science/api/pith-number/J6YF2NG32ULSTUVBVBHVG5MHPA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA/action/storage_attestation","attest_author":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA/action/author_attestation","sign_citation":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA/action/citation_signature","submit_replication":"https://pith.science/pith/J6YF2NG32ULSTUVBVBHVG5MHPA/action/replication_record"}},"created_at":"2026-07-03T01:17:13.233515+00:00","updated_at":"2026-07-03T01:17:13.233515+00:00"}