{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:OQ5ASSM36YRT2FZFQ2BV76JT4F","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":"9d359efe02d22a6d7daad820d84c8ccb7f8884041ef3cdcebb7dc03eff715eba","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-03-15T02:47:50Z","title_canon_sha256":"c6cfef436b232882a8a28ef792d41c39702fbc4cf26f6a7cd8c1b52dc0a9188e"},"schema_version":"1.0","source":{"id":"1703.05591","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.05591","created_at":"2026-05-18T00:48:33Z"},{"alias_kind":"arxiv_version","alias_value":"1703.05591v1","created_at":"2026-05-18T00:48:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.05591","created_at":"2026-05-18T00:48:33Z"},{"alias_kind":"pith_short_12","alias_value":"OQ5ASSM36YRT","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"OQ5ASSM36YRT2FZF","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"OQ5ASSM3","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:87affe436ffcf670d77621c8ee9c0291f3e18b77f705b4c3f4478530e9c8e3ed","target":"graph","created_at":"2026-05-18T00:48:33Z","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 analysis of clouds in the earth's atmosphere is important for a variety of applications, viz. weather reporting, climate forecasting, and solar energy generation. In this paper, we focus our attention on the impact of cloud on the total solar irradiance reaching the earth's surface. We use weather station to record the total solar irradiance. Moreover, we employ collocated ground-based sky camera to automatically compute the instantaneous cloud coverage. We analyze the relationship between measured solar irradiance and computed cloud coverage value, and conclude that higher cloud coverage ","authors_text":"Feng Yuan, Shilpa Manandhar, Soumyabrata Dev, Stefan Winkler, Yee Hui Lee","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-03-15T02:47:50Z","title":"Cloud Radiative Effect Study Using Sky Camera"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.05591","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":"sha256:081cb291d2ac4b11a852724ed5b982862d74720add3018b828322a5eb5990572","target":"record","created_at":"2026-05-18T00:48:33Z","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":"9d359efe02d22a6d7daad820d84c8ccb7f8884041ef3cdcebb7dc03eff715eba","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2017-03-15T02:47:50Z","title_canon_sha256":"c6cfef436b232882a8a28ef792d41c39702fbc4cf26f6a7cd8c1b52dc0a9188e"},"schema_version":"1.0","source":{"id":"1703.05591","kind":"arxiv","version":1}},"canonical_sha256":"743a09499bf6233d172586835ff933e16efc08c2516fd9ba0a542b18c27c16cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"743a09499bf6233d172586835ff933e16efc08c2516fd9ba0a542b18c27c16cb","first_computed_at":"2026-05-18T00:48:33.855012Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:33.855012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q/kli/lnzYwRMWYqBoTAZR03d+C1nlQI/ff++Al1gKKznYaQ57AI2sziLYeDiSSMZ0HDwChygnhrjhCiJKKNCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:33.855557Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.05591","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:081cb291d2ac4b11a852724ed5b982862d74720add3018b828322a5eb5990572","sha256:87affe436ffcf670d77621c8ee9c0291f3e18b77f705b4c3f4478530e9c8e3ed"],"state_sha256":"9a54dc7ef89b784ffee394687b4e5d832133c9983fa0f0c956a89d3260eae7cb"}