{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:7HNPN7N2Y4YCF5O4NU6IJYTYX4","short_pith_number":"pith:7HNPN7N2","schema_version":"1.0","canonical_sha256":"f9daf6fdbac73022f5dc6d3c84e278bf36bbaac38dfbe27f14d68e6043ec2840","source":{"kind":"arxiv","id":"2503.20912","version":1},"attestation_state":"computed","paper":{"title":"Void and Density Walls Inhomogeneous Cosmic Web And Dark Energy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"John W. Moffat","submitted_at":"2025-03-26T18:34:45Z","abstract_excerpt":"Recent observations from the Dark Energy Spectroscopic Instrument (DESI 2025) indicate a weakening of cosmic acceleration at low redshifts $z < 1$, with effective dark energy equation of state parameters $w_0 > -1$ and $w_a < 0$. We demonstrate that this evolution in dark energy can be explained by cosmic inhomogeneities and the Cosmic Web without modifying fundamental physics. Our model shows how the differential expansion between underdense voids and overdense walls creates an effective backreaction term that simulates evolving dark energy when interpreted within homogeneous cosmological fra"},"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":"2503.20912","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-26T18:34:45Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"50c88055e40a6e836ed5abfc77ba327f649df107b30825d8e81ad1426d718e1f","abstract_canon_sha256":"c7c0deeacfb7438f5ece1bc387436d89358cff1b7a3513112ff2a2864a19947f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:39:50.166699Z","signature_b64":"VZ4icFh7Cgv41Sp4EEvfLH39pAQXs8HSSe8GLws/lRM5wA0UNQAtBUxkbzltvYuHkwpCG43esAp+Y+9A9lSJCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9daf6fdbac73022f5dc6d3c84e278bf36bbaac38dfbe27f14d68e6043ec2840","last_reissued_at":"2026-07-05T10:39:50.166266Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:39:50.166266Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Void and Density Walls Inhomogeneous Cosmic Web And Dark Energy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"John W. Moffat","submitted_at":"2025-03-26T18:34:45Z","abstract_excerpt":"Recent observations from the Dark Energy Spectroscopic Instrument (DESI 2025) indicate a weakening of cosmic acceleration at low redshifts $z < 1$, with effective dark energy equation of state parameters $w_0 > -1$ and $w_a < 0$. We demonstrate that this evolution in dark energy can be explained by cosmic inhomogeneities and the Cosmic Web without modifying fundamental physics. Our model shows how the differential expansion between underdense voids and overdense walls creates an effective backreaction term that simulates evolving dark energy when interpreted within homogeneous cosmological fra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.20912","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/2503.20912/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":"2503.20912","created_at":"2026-07-05T10:39:50.166322+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.20912v1","created_at":"2026-07-05T10:39:50.166322+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.20912","created_at":"2026-07-05T10:39:50.166322+00:00"},{"alias_kind":"pith_short_12","alias_value":"7HNPN7N2Y4YC","created_at":"2026-07-05T10:39:50.166322+00:00"},{"alias_kind":"pith_short_16","alias_value":"7HNPN7N2Y4YCF5O4","created_at":"2026-07-05T10:39:50.166322+00:00"},{"alias_kind":"pith_short_8","alias_value":"7HNPN7N2","created_at":"2026-07-05T10:39:50.166322+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2506.10075","citing_title":"Topological defects as effective dynamical dark energy","ref_index":59,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4","json":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4.json","graph_json":"https://pith.science/api/pith-number/7HNPN7N2Y4YCF5O4NU6IJYTYX4/graph.json","events_json":"https://pith.science/api/pith-number/7HNPN7N2Y4YCF5O4NU6IJYTYX4/events.json","paper":"https://pith.science/paper/7HNPN7N2"},"agent_actions":{"view_html":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4","download_json":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4.json","view_paper":"https://pith.science/paper/7HNPN7N2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.20912&json=true","fetch_graph":"https://pith.science/api/pith-number/7HNPN7N2Y4YCF5O4NU6IJYTYX4/graph.json","fetch_events":"https://pith.science/api/pith-number/7HNPN7N2Y4YCF5O4NU6IJYTYX4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4/action/storage_attestation","attest_author":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4/action/author_attestation","sign_citation":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4/action/citation_signature","submit_replication":"https://pith.science/pith/7HNPN7N2Y4YCF5O4NU6IJYTYX4/action/replication_record"}},"created_at":"2026-07-05T10:39:50.166322+00:00","updated_at":"2026-07-05T10:39:50.166322+00:00"}