{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LZLOBALGLXZHAJBAFH4AP4QOA5","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":"5f00c1352ad0f5362fc96f085733a26339cbd5118b696a3ba20b9aa521e28edd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-02-20T17:50:50Z","title_canon_sha256":"326d15dfc2bdc92e88c180ad8c8a79f7f2934961cd8f850c8765371dc50e603d"},"schema_version":"1.0","source":{"id":"1502.05952","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.05952","created_at":"2026-05-18T01:20:50Z"},{"alias_kind":"arxiv_version","alias_value":"1502.05952v5","created_at":"2026-05-18T01:20:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.05952","created_at":"2026-05-18T01:20:50Z"},{"alias_kind":"pith_short_12","alias_value":"LZLOBALGLXZH","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LZLOBALGLXZHAJBA","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LZLOBALG","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:c0602ce0c7c4c9b1ab0d5d82549371f0fedabfed1e73627fe8c1d394bf091ef0","target":"graph","created_at":"2026-05-18T01:20:50Z","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":"During this work, an interacting chameleon like scalar field scenario, by considering SNeIa, CMB, BAO and OHD data sets is investigated. In fact, the investigation is realized by introducing an ansatz for the effective dark energy equation of state, which mimics the behaviour of chameleon like models. Based on this assumption, some cosmological parameters including Hubble, deceleration and coincidence parameters in such mechanism are analysed. It is realized that, to estimate the free parameters of a theoretical model, by regarding the systematic errors it better the whole of the above observa","authors_text":"Ali Aghamohammadi, Haidar Sheikhahmadi, Khaled Saaidi, Sayed Wrya Rabiei","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-02-20T17:50:50Z","title":"Interacting scalar tensor cosmology in light of SNeIa, CMB, BAO and OHD observational data sets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05952","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":"sha256:6d840e16801826ac0847241bcd6ca7c435a5f5191a68ea2cf4915b623f2d0983","target":"record","created_at":"2026-05-18T01:20:50Z","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":"5f00c1352ad0f5362fc96f085733a26339cbd5118b696a3ba20b9aa521e28edd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-02-20T17:50:50Z","title_canon_sha256":"326d15dfc2bdc92e88c180ad8c8a79f7f2934961cd8f850c8765371dc50e603d"},"schema_version":"1.0","source":{"id":"1502.05952","kind":"arxiv","version":5}},"canonical_sha256":"5e56e081665df270242029f807f20e074324d1d5ec1726066fc19140486d52bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e56e081665df270242029f807f20e074324d1d5ec1726066fc19140486d52bb","first_computed_at":"2026-05-18T01:20:50.559201Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:50.559201Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P+AYorGVr+OI2/ieBEK9B3q0bPXPEewNXkq25NuTeH0QjIm/yuaqtB9wGJ9IEOGhIiWLs6lWT+ppOpwQunQkDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:50.559733Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.05952","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d840e16801826ac0847241bcd6ca7c435a5f5191a68ea2cf4915b623f2d0983","sha256:c0602ce0c7c4c9b1ab0d5d82549371f0fedabfed1e73627fe8c1d394bf091ef0"],"state_sha256":"a2f51c8293c54f5afb85cd60e1a06146bc09e6485ca612f0597cbb6a9ce98ecb"}