{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:SRND4RGOI2DZHRCOAKQ6LRKOCF","short_pith_number":"pith:SRND4RGO","schema_version":"1.0","canonical_sha256":"945a3e44ce468793c44e02a1e5c54e116f5f496e44c604825a2099dfd4bfe6a3","source":{"kind":"arxiv","id":"astro-ph/0411221","version":4},"attestation_state":"computed","paper":{"title":"New generalized Chaplygin gas as a scheme for unification of dark energy and dark matter","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Feng-Quan Wu, Jingfei Zhang, Xin Zhang","submitted_at":"2004-11-09T11:46:25Z","abstract_excerpt":"We propose in this paper a new model for describing the unification of dark energy and dark matter. This new model is a further generalization of the generalized Chaplygin gas (GCG) model, thus dubbed new generalized Chaplygin gas (NGCG) model. The equation of state of the NGCG is given by $p = - \\tilde{A}(a)/\\rho^{\\alpha}$, where $a$ is the scale factor and $\\tilde{A}(a)=-w_XAa^{-3(1+w_X)(1+\\alpha)}$. We show that the NGCG model is totally dual to an interacting XCDM parametrization scenario, in which the interaction between dark energy and dark matter is characterized by the constant $\\alpha"},"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/0411221","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-11-09T11:46:25Z","cross_cats_sorted":["gr-qc","hep-ph","hep-th"],"title_canon_sha256":"b16149b723625ba5c491227ea38e435d4f897d191cc9dc4f2040d1f6489b24ab","abstract_canon_sha256":"02265cfe90242665c291d7f3677522631f505efdb6fce049e2a893cd53a19422"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:45:08.788495Z","signature_b64":"Y8WMztf0DmeXw0uzBKS9cxQ1iwt5HfOV2sVah2rxzqI2RmpLxoAM04BS3KerTZOFLPwrXa5n1GmQWeX3mBAuDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"945a3e44ce468793c44e02a1e5c54e116f5f496e44c604825a2099dfd4bfe6a3","last_reissued_at":"2026-07-04T16:45:08.787979Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:45:08.787979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New generalized Chaplygin gas as a scheme for unification of dark energy and dark matter","license":"","headline":"","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph","authors_text":"Feng-Quan Wu, Jingfei Zhang, Xin Zhang","submitted_at":"2004-11-09T11:46:25Z","abstract_excerpt":"We propose in this paper a new model for describing the unification of dark energy and dark matter. This new model is a further generalization of the generalized Chaplygin gas (GCG) model, thus dubbed new generalized Chaplygin gas (NGCG) model. The equation of state of the NGCG is given by $p = - \\tilde{A}(a)/\\rho^{\\alpha}$, where $a$ is the scale factor and $\\tilde{A}(a)=-w_XAa^{-3(1+w_X)(1+\\alpha)}$. We show that the NGCG model is totally dual to an interacting XCDM parametrization scenario, in which the interaction between dark energy and dark matter is characterized by the constant $\\alpha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0411221","kind":"arxiv","version":4},"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/0411221/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/0411221","created_at":"2026-07-04T16:45:08.788065+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0411221v4","created_at":"2026-07-04T16:45:08.788065+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0411221","created_at":"2026-07-04T16:45:08.788065+00:00"},{"alias_kind":"pith_short_12","alias_value":"SRND4RGOI2DZ","created_at":"2026-07-04T16:45:08.788065+00:00"},{"alias_kind":"pith_short_16","alias_value":"SRND4RGOI2DZHRCO","created_at":"2026-07-04T16:45:08.788065+00:00"},{"alias_kind":"pith_short_8","alias_value":"SRND4RGO","created_at":"2026-07-04T16:45:08.788065+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"2508.01759","citing_title":"Resolving the Planck-DESI tension by nonminimally coupled quintessence","ref_index":103,"is_internal_anchor":true},{"citing_arxiv_id":"2603.10787","citing_title":"Measuring neutrino mass in light of ACT DR6 and DESI DR2","ref_index":19,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF","json":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF.json","graph_json":"https://pith.science/api/pith-number/SRND4RGOI2DZHRCOAKQ6LRKOCF/graph.json","events_json":"https://pith.science/api/pith-number/SRND4RGOI2DZHRCOAKQ6LRKOCF/events.json","paper":"https://pith.science/paper/SRND4RGO"},"agent_actions":{"view_html":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF","download_json":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF.json","view_paper":"https://pith.science/paper/SRND4RGO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0411221&json=true","fetch_graph":"https://pith.science/api/pith-number/SRND4RGOI2DZHRCOAKQ6LRKOCF/graph.json","fetch_events":"https://pith.science/api/pith-number/SRND4RGOI2DZHRCOAKQ6LRKOCF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF/action/storage_attestation","attest_author":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF/action/author_attestation","sign_citation":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF/action/citation_signature","submit_replication":"https://pith.science/pith/SRND4RGOI2DZHRCOAKQ6LRKOCF/action/replication_record"}},"created_at":"2026-07-04T16:45:08.788065+00:00","updated_at":"2026-07-04T16:45:08.788065+00:00"}