{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VLMOBPYKNOTNEHMFQMSCAT6J5J","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"64160233a9dc272645764778128b36534e037f655098bd873f171d5e43c658eb","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-02T12:54:27Z","title_canon_sha256":"eae69703332989879574552ce9ae4365f6422aaf232b5a8e9fdd083dffb514f6"},"schema_version":"1.0","source":{"id":"1702.00651","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.00651","created_at":"2026-05-18T00:51:31Z"},{"alias_kind":"arxiv_version","alias_value":"1702.00651v1","created_at":"2026-05-18T00:51:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.00651","created_at":"2026-05-18T00:51:31Z"},{"alias_kind":"pith_short_12","alias_value":"VLMOBPYKNOTN","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VLMOBPYKNOTNEHMF","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VLMOBPYK","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:e6215fb65e4836a0d9c8f62d7fb4959fcef59fd77ab659ab5fa882f0772e5324","target":"graph","created_at":"2026-05-18T00:51:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Yes, but only for a parameter value that makes it almost coincide with the standard model. We reconsider the cosmological dynamics of a generalized Chaplygin gas (gCg) which is split into a cold dark matter (CDM) part and a dark energy (DE) component with constant equation of state. This model, which implies a specific interaction between CDM and DE, has a $\\Lambda$CDM limit and provides the basis for studying deviations from the latter. Including matter and radiation, we use the (modified) CLASS code \\cite{class} to construct the CMB and matter power spectra in order to search for a gCg-based","authors_text":"D.F. Mota, L. Casarini, R.F. vom Marttens, W.S. Hip\\'olito-Ricaldi, W. Zimdahl","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-02T12:54:27Z","title":"Does a generalized Chaplygin gas correctly describe the cosmological dark sector?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.00651","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:36dbb9bb687f44430c75568b80c03363faa634ea9b0aa6e4e0d97547e94301d4","target":"record","created_at":"2026-05-18T00:51:31Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"64160233a9dc272645764778128b36534e037f655098bd873f171d5e43c658eb","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-02T12:54:27Z","title_canon_sha256":"eae69703332989879574552ce9ae4365f6422aaf232b5a8e9fdd083dffb514f6"},"schema_version":"1.0","source":{"id":"1702.00651","kind":"arxiv","version":1}},"canonical_sha256":"aad8e0bf0a6ba6d21d858324204fc9ea60774a30430d991125461df258e76640","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aad8e0bf0a6ba6d21d858324204fc9ea60774a30430d991125461df258e76640","first_computed_at":"2026-05-18T00:51:31.290937Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:31.290937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XhovK/1wAngP/cSGcth9Zy6yFn5PObvBdCu5NtTpA32+56xfSHLYdRQYEsQZrGxa683lFx7pki4Fand6kus+Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:31.291591Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.00651","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36dbb9bb687f44430c75568b80c03363faa634ea9b0aa6e4e0d97547e94301d4","sha256:e6215fb65e4836a0d9c8f62d7fb4959fcef59fd77ab659ab5fa882f0772e5324"],"state_sha256":"a70dd510f3f9db2568c2ac820bd79e071e54bc3b5559c78e914b7635a1386337"}