{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:5JYQCDFTOS5S3QL4XO74JMOGUU","short_pith_number":"pith:5JYQCDFT","schema_version":"1.0","canonical_sha256":"ea71010cb374bb2dc17cbbbfc4b1c6a518d05d3b37b9761222c458b83f67b809","source":{"kind":"arxiv","id":"astro-ph/0312022","version":1},"attestation_state":"computed","paper":{"title":"Constraints on Cardassian Scenario from the Expansion Turnaround Redshift and the Sunyaev-Zeldovich/X-ray Data","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Masa-Katsu Fujimoto, Zong-Hong Zhu","submitted_at":"2003-12-01T01:54:55Z","abstract_excerpt":"Cosmic acceleration is one of the most remarkable cosmological findings of recent years. Although a dark energy component has usually been invoked as the mechanism for the acceleration, A modification of Friedmann equation from various higher dimensional models provides a feasible alternative. Cardassian expansion is one of these scenarios. In this work, we first consider the constraints on the parameter space from the turnaround redshift, z_{q=0}, at which the universe switches from deceleration to acceleration. We show that, for every Omega_m, there exist a unique n_{peak} (Omega_m), which m"},"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":"astro-ph/0312022","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-12-01T01:54:55Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"025c88917f3c0e444f76f2665a3b8447142894128bd3b6c7369693ec022b3368","abstract_canon_sha256":"d2bc02c887e95ead11acadac6bdbad19ef39a707b47b54b47d50073c768e9cc5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:37:54.445249Z","signature_b64":"G6X2fFoJ8pckdKUgk58105u939OF0cnW9k1OBNBt2zZNwW15KmJUlTWIEsneYkiHVKVFRsBtme6Fgn9z/MQBAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea71010cb374bb2dc17cbbbfc4b1c6a518d05d3b37b9761222c458b83f67b809","last_reissued_at":"2026-07-04T16:37:54.444899Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:37:54.444899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraints on Cardassian Scenario from the Expansion Turnaround Redshift and the Sunyaev-Zeldovich/X-ray Data","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Masa-Katsu Fujimoto, Zong-Hong Zhu","submitted_at":"2003-12-01T01:54:55Z","abstract_excerpt":"Cosmic acceleration is one of the most remarkable cosmological findings of recent years. Although a dark energy component has usually been invoked as the mechanism for the acceleration, A modification of Friedmann equation from various higher dimensional models provides a feasible alternative. Cardassian expansion is one of these scenarios. In this work, we first consider the constraints on the parameter space from the turnaround redshift, z_{q=0}, at which the universe switches from deceleration to acceleration. We show that, for every Omega_m, there exist a unique n_{peak} (Omega_m), which m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0312022","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/astro-ph/0312022/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":"astro-ph/0312022","created_at":"2026-07-04T16:37:54.444961+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0312022v1","created_at":"2026-07-04T16:37:54.444961+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0312022","created_at":"2026-07-04T16:37:54.444961+00:00"},{"alias_kind":"pith_short_12","alias_value":"5JYQCDFTOS5S","created_at":"2026-07-04T16:37:54.444961+00:00"},{"alias_kind":"pith_short_16","alias_value":"5JYQCDFTOS5S3QL4","created_at":"2026-07-04T16:37:54.444961+00:00"},{"alias_kind":"pith_short_8","alias_value":"5JYQCDFT","created_at":"2026-07-04T16:37:54.444961+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/5JYQCDFTOS5S3QL4XO74JMOGUU","json":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU.json","graph_json":"https://pith.science/api/pith-number/5JYQCDFTOS5S3QL4XO74JMOGUU/graph.json","events_json":"https://pith.science/api/pith-number/5JYQCDFTOS5S3QL4XO74JMOGUU/events.json","paper":"https://pith.science/paper/5JYQCDFT"},"agent_actions":{"view_html":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU","download_json":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU.json","view_paper":"https://pith.science/paper/5JYQCDFT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0312022&json=true","fetch_graph":"https://pith.science/api/pith-number/5JYQCDFTOS5S3QL4XO74JMOGUU/graph.json","fetch_events":"https://pith.science/api/pith-number/5JYQCDFTOS5S3QL4XO74JMOGUU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU/action/storage_attestation","attest_author":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU/action/author_attestation","sign_citation":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU/action/citation_signature","submit_replication":"https://pith.science/pith/5JYQCDFTOS5S3QL4XO74JMOGUU/action/replication_record"}},"created_at":"2026-07-04T16:37:54.444961+00:00","updated_at":"2026-07-04T16:37:54.444961+00:00"}