{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:V5AI24E6AR3K3CZB3NIEKJEXLY","short_pith_number":"pith:V5AI24E6","schema_version":"1.0","canonical_sha256":"af408d709e0476ad8b21db504524975e08cae18a49ea0906cad14e46dc0ba8b1","source":{"kind":"arxiv","id":"2606.18437","version":1},"attestation_state":"computed","paper":{"title":"Impact of inhomogeneous curvature on growth rate measurements from magnitude fluctuations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andrew Nguyen, Chris Blake, Hayley J. Macpherson","submitted_at":"2026-06-16T19:40:21Z","abstract_excerpt":"Our interpretation of current cosmological observations rests on the assumptions of homogeneity and isotropy, leading to uniform background curvature and expansion characterised by the Friedmann-Lema\\^itre-Robertson-Walker (FLRW) spacetime metric. However, the large-scale structure of the Universe is non-uniform in detail, inducing inhomogeneous curvature and scale factor variations. In this paper, we use numerical cosmological simulations generated in full General Relativity to study the impact of inhomogeneous spacetime on the magnitude fluctuations of distant objects, focusing on their use "},"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":"2606.18437","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-06-16T19:40:21Z","cross_cats_sorted":[],"title_canon_sha256":"2b3a649b5cf20b7ec92d3c731c11b2cda65d5d0f06f317f5ad8172f503853d76","abstract_canon_sha256":"2918232fd1f8fc937c243edcb43dab675a67c6cc77a7f4d52c4673ffe728ce3a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:11:01.163966Z","signature_b64":"1itmogdasmp2V6l5jWW7iseTp1tJHy9kr2iQ99huoNEQr1iQQjPUjHOqjXepJkEOoUUbLE8bNpyYLpE8ku2/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af408d709e0476ad8b21db504524975e08cae18a49ea0906cad14e46dc0ba8b1","last_reissued_at":"2026-06-19T16:11:01.163581Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:11:01.163581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Impact of inhomogeneous curvature on growth rate measurements from magnitude fluctuations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andrew Nguyen, Chris Blake, Hayley J. Macpherson","submitted_at":"2026-06-16T19:40:21Z","abstract_excerpt":"Our interpretation of current cosmological observations rests on the assumptions of homogeneity and isotropy, leading to uniform background curvature and expansion characterised by the Friedmann-Lema\\^itre-Robertson-Walker (FLRW) spacetime metric. However, the large-scale structure of the Universe is non-uniform in detail, inducing inhomogeneous curvature and scale factor variations. In this paper, we use numerical cosmological simulations generated in full General Relativity to study the impact of inhomogeneous spacetime on the magnitude fluctuations of distant objects, focusing on their use "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18437","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/2606.18437/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":"2606.18437","created_at":"2026-06-19T16:11:01.163646+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.18437v1","created_at":"2026-06-19T16:11:01.163646+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18437","created_at":"2026-06-19T16:11:01.163646+00:00"},{"alias_kind":"pith_short_12","alias_value":"V5AI24E6AR3K","created_at":"2026-06-19T16:11:01.163646+00:00"},{"alias_kind":"pith_short_16","alias_value":"V5AI24E6AR3K3CZB","created_at":"2026-06-19T16:11:01.163646+00:00"},{"alias_kind":"pith_short_8","alias_value":"V5AI24E6","created_at":"2026-06-19T16:11:01.163646+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/V5AI24E6AR3K3CZB3NIEKJEXLY","json":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY.json","graph_json":"https://pith.science/api/pith-number/V5AI24E6AR3K3CZB3NIEKJEXLY/graph.json","events_json":"https://pith.science/api/pith-number/V5AI24E6AR3K3CZB3NIEKJEXLY/events.json","paper":"https://pith.science/paper/V5AI24E6"},"agent_actions":{"view_html":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY","download_json":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY.json","view_paper":"https://pith.science/paper/V5AI24E6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.18437&json=true","fetch_graph":"https://pith.science/api/pith-number/V5AI24E6AR3K3CZB3NIEKJEXLY/graph.json","fetch_events":"https://pith.science/api/pith-number/V5AI24E6AR3K3CZB3NIEKJEXLY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY/action/storage_attestation","attest_author":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY/action/author_attestation","sign_citation":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY/action/citation_signature","submit_replication":"https://pith.science/pith/V5AI24E6AR3K3CZB3NIEKJEXLY/action/replication_record"}},"created_at":"2026-06-19T16:11:01.163646+00:00","updated_at":"2026-06-19T16:11:01.163646+00:00"}