{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:MX6IF3SL2FZFATEOSX4YOU67JU","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":"5636aad96d736ea481e1be04c6a7ef1fde92b7c6e13be20f3003609f7dd503e9","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-17T16:45:31Z","title_canon_sha256":"f63a7207867d9f89a89d4b8239bf6cf7457cef084877499274d3d1cd54f97d23"},"schema_version":"1.0","source":{"id":"0904.2743","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2743","created_at":"2026-05-18T04:07:43Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2743v2","created_at":"2026-05-18T04:07:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2743","created_at":"2026-05-18T04:07:43Z"},{"alias_kind":"pith_short_12","alias_value":"MX6IF3SL2FZF","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"MX6IF3SL2FZFATEO","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"MX6IF3SL","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:5acdd4a23075368ffdf7507e3ea76b1d12c5881c2b9f6dd655033ce75d7af145","target":"graph","created_at":"2026-05-18T04:07:43Z","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":"In power-law cosmology, we determine potential function of a canonical scalar field in FLRW universe in presence of barotropic perfect fluid. The combined WMAP5+BAO+SN dataset and WMAP5 dataset are used here to determine the value of the potential. The datasets suggest slightly closed universe. If the universe is closed, the exponents of the power-law cosmology are $q = 1.01$ (WMAP5 dataset) and $q=0.985$ (combined dataset). The lower limits of $a_0$ (closed geometry) are $5.1\\E{26}$ for WMAP5 dataset and $9.85\\E{26}$ for the combined dataset. The domination of the power-law term over the curv","authors_text":"Burin Gumjudpai (IF, Kiattisak Thepsuriya (IF, Naresuan U.)","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-17T16:45:31Z","title":"Determining scalar field potential in power-law cosmology with observational data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2743","kind":"arxiv","version":2},"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:f9068721a9e7c1143df3c155fae4fd03cdee9ab9458fe953f60b45ebb41421e9","target":"record","created_at":"2026-05-18T04:07:43Z","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":"5636aad96d736ea481e1be04c6a7ef1fde92b7c6e13be20f3003609f7dd503e9","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-17T16:45:31Z","title_canon_sha256":"f63a7207867d9f89a89d4b8239bf6cf7457cef084877499274d3d1cd54f97d23"},"schema_version":"1.0","source":{"id":"0904.2743","kind":"arxiv","version":2}},"canonical_sha256":"65fc82ee4bd172504c8e95f98753df4d3f6c7eda1143870b7932346bf16db0db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"65fc82ee4bd172504c8e95f98753df4d3f6c7eda1143870b7932346bf16db0db","first_computed_at":"2026-05-18T04:07:43.301104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:43.301104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+ZtOkFOXlmjX1XHgJ4hIObbUxnTIJCX/D0DYE1V9FwFkQvIAuoYYaTd1a8X5p+0Dj8W7Swe9enmICtYUtHkwDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:43.301866Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.2743","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9068721a9e7c1143df3c155fae4fd03cdee9ab9458fe953f60b45ebb41421e9","sha256:5acdd4a23075368ffdf7507e3ea76b1d12c5881c2b9f6dd655033ce75d7af145"],"state_sha256":"a3ca267b053be96f276ff91c6f58151b8f5c457c719d1b8af495b53ad0e7cb86"}