{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:G45G7SUFPS6Q3T3MQ55HSSYUD5","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":"9016cb851c008e6427643e31f7259078f227ca40d7e5bc5fe5152559ba80a83e","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-13T19:52:59Z","title_canon_sha256":"67b97aa556f465aab697bfcd2129bcaca70067c79f584550a1931e83be283921"},"schema_version":"1.0","source":{"id":"1106.2537","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.2537","created_at":"2026-05-18T04:20:05Z"},{"alias_kind":"arxiv_version","alias_value":"1106.2537v1","created_at":"2026-05-18T04:20:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.2537","created_at":"2026-05-18T04:20:05Z"},{"alias_kind":"pith_short_12","alias_value":"G45G7SUFPS6Q","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"G45G7SUFPS6Q3T3M","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"G45G7SUF","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:45ea85098b0c51734c95bd27ecf9f5bf6c8dcef64e4cb430bb6a851d937e8728","target":"graph","created_at":"2026-05-18T04:20:05Z","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 solar diameter changes or not? Whatever will be the answer the methods used for its measurements are more and more challenging, and facing new astrophysical and optical problems since the required space resolution is of astrometric quality. A quick overview on different methods is here presented, as well as the problem of the solar limb definition, emerging after the flash spectrum during eclipses.","authors_text":"Costantino Sigismondi","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-13T19:52:59Z","title":"Ground-based measurements of solar diameter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.2537","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":"sha256:715eedd774fbb6dc99e9fbf1a3b6e5ecaa5f9170c8fe38229c77233f7d095283","target":"record","created_at":"2026-05-18T04:20:05Z","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":"9016cb851c008e6427643e31f7259078f227ca40d7e5bc5fe5152559ba80a83e","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-06-13T19:52:59Z","title_canon_sha256":"67b97aa556f465aab697bfcd2129bcaca70067c79f584550a1931e83be283921"},"schema_version":"1.0","source":{"id":"1106.2537","kind":"arxiv","version":1}},"canonical_sha256":"373a6fca857cbd0dcf6c877a794b141f55eb0cc95ee84c1c6a8aeb31406c826e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"373a6fca857cbd0dcf6c877a794b141f55eb0cc95ee84c1c6a8aeb31406c826e","first_computed_at":"2026-05-18T04:20:05.651515Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:20:05.651515Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bJHpHr7M8tMtNhAAXESlA6tuUCE0NHYFBJShd0fmx3L1BQtQYTxwOU46ecr62Wpp+65TjnGoVDV+aGQ+myXgCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:20:05.652007Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.2537","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:715eedd774fbb6dc99e9fbf1a3b6e5ecaa5f9170c8fe38229c77233f7d095283","sha256:45ea85098b0c51734c95bd27ecf9f5bf6c8dcef64e4cb430bb6a851d937e8728"],"state_sha256":"04af6350b78e172ba29db29d870b8918bf2841427bcf15ad097017303dabb81e"}