{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3KTCHNNCTAPDHKAPTTKQ7APPBA","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":"e984baf31146f2fe2b5070df4aa78d13c13319a32c93e07128f09dd8ff6f71b4","cross_cats_sorted":["astro-ph.HE","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-09T09:14:53Z","title_canon_sha256":"86d11ada0bf6108f30e1807e672a5a72d9518f839c91aa5bb020cbd45a8c6714"},"schema_version":"1.0","source":{"id":"1105.1603","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.1603","created_at":"2026-05-18T02:02:02Z"},{"alias_kind":"arxiv_version","alias_value":"1105.1603v5","created_at":"2026-05-18T02:02:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.1603","created_at":"2026-05-18T02:02:02Z"},{"alias_kind":"pith_short_12","alias_value":"3KTCHNNCTAPD","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"3KTCHNNCTAPDHKAP","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"3KTCHNNC","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:1f811b5552d98e08456ed60859d49b5a3003e18d012f2b17744a60361b6eb36d","target":"graph","created_at":"2026-05-18T02:02:02Z","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":"The deceleration parameter q as the diagnostic of the cosmological accelerating expansion is investigated. By expanding the luminosity distance to the fourth order of redshift and the so-called y-redshift in two redshift bins and fitting the SNIa data (Union2), the marginalized likelihood distribution of the current deceleration parameter shows that the cosmic acceleration is still increasing, but there might be a tendency that the cosmic acceleration will slow down in the near future. We also fit the Hubble evolution data together with SNIa data by expanding the Hubble parameter to the third ","authors_text":"Ronggen Cai, Zhongliang Tuo","cross_cats":["astro-ph.HE","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-09T09:14:53Z","title":"Detecting the cosmic acceleration with current data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.1603","kind":"arxiv","version":5},"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:d5a17593306cee3ad5fc24c5f432415c484993b5b27deb92042cfa9b2612b3c0","target":"record","created_at":"2026-05-18T02:02:02Z","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":"e984baf31146f2fe2b5070df4aa78d13c13319a32c93e07128f09dd8ff6f71b4","cross_cats_sorted":["astro-ph.HE","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-09T09:14:53Z","title_canon_sha256":"86d11ada0bf6108f30e1807e672a5a72d9518f839c91aa5bb020cbd45a8c6714"},"schema_version":"1.0","source":{"id":"1105.1603","kind":"arxiv","version":5}},"canonical_sha256":"daa623b5a2981e33a80f9cd50f81ef08193c601e26dde2b90c060ac816a7a210","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daa623b5a2981e33a80f9cd50f81ef08193c601e26dde2b90c060ac816a7a210","first_computed_at":"2026-05-18T02:02:02.653217Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:02.653217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iGwH4esKdg5xPTZsPNzq7mxaPxUKicmme06HXMREkcJfVmpA4MUy0G8MRqzgEkXfw8axLLQtO5zcY012RFVPBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:02.653861Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.1603","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5a17593306cee3ad5fc24c5f432415c484993b5b27deb92042cfa9b2612b3c0","sha256:1f811b5552d98e08456ed60859d49b5a3003e18d012f2b17744a60361b6eb36d"],"state_sha256":"a7d50c3a4dbbe3fc4f9b655ca028b860c4c03200b5bc4a3fccacc76204a0b3c5"}