{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:WX42YYMWARKUOWABWC4DFBV24O","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":"84857213898df0222a5f5f0fc79997064fdd6abfdfadba71239f4ae2d4996f0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-08-25T18:50:25Z","title_canon_sha256":"734a66b3893ad764b7bd778aea70571fba6fb99fbc9c9ce4833a72da6a85dea4"},"schema_version":"1.0","source":{"id":"1608.07252","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.07252","created_at":"2026-05-18T00:59:57Z"},{"alias_kind":"arxiv_version","alias_value":"1608.07252v2","created_at":"2026-05-18T00:59:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.07252","created_at":"2026-05-18T00:59:57Z"},{"alias_kind":"pith_short_12","alias_value":"WX42YYMWARKU","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"WX42YYMWARKUOWAB","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"WX42YYMW","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:9c7f83535241be21059ec52bb95f5698c4befdc81bcf7f7a2d70701a8faebeb3","target":"graph","created_at":"2026-05-18T00:59:57Z","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":"Direct detection and spectroscopy of exoplanets requires high contrast imaging. For habitable exoplanets in particular, located at small angular separation from the host star, it is crucial to employ small inner working angle (IWA) coronagraphs that efficiently suppress starlight. These coronagraphs, in turn, require careful control of the wavefront which directly impacts their performance. For ground-based telescopes, atmospheric refraction is also an important factor, since it results in a smearing of the PSF, that can no longer be efficiently suppressed by the coronagraph. Traditionally, at","authors_text":"F. Martinache, H. Takami, J. Lozi, N. Jovanovic, N. Narita, O. Guyon, P. Pathak, T. Kudo, Y. Hayano, Y. Minowa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-08-25T18:50:25Z","title":"A high precision technique to correct for residual atmospheric dispersion in high-contrast imaging systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.07252","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":"sha256:826d9af8377cb13b5f705d926066929cb39e6c11f18416f9587532dc3a697fef","target":"record","created_at":"2026-05-18T00:59:57Z","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":"84857213898df0222a5f5f0fc79997064fdd6abfdfadba71239f4ae2d4996f0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-08-25T18:50:25Z","title_canon_sha256":"734a66b3893ad764b7bd778aea70571fba6fb99fbc9c9ce4833a72da6a85dea4"},"schema_version":"1.0","source":{"id":"1608.07252","kind":"arxiv","version":2}},"canonical_sha256":"b5f9ac61960455475801b0b83286bae3b9cf906048151617872074544cbcea53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5f9ac61960455475801b0b83286bae3b9cf906048151617872074544cbcea53","first_computed_at":"2026-05-18T00:59:57.370845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:57.370845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ag+oLDNXEl8wvpFq9FTEhUJpNf4Ebh0EkwPavG8LsnWFu8G7P2Dh52t+Hrvx3q1FbtU1d1tiBiBKeeWqq9YOCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:57.371359Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.07252","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:826d9af8377cb13b5f705d926066929cb39e6c11f18416f9587532dc3a697fef","sha256:9c7f83535241be21059ec52bb95f5698c4befdc81bcf7f7a2d70701a8faebeb3"],"state_sha256":"fdbc480182b591fc343372dfde9c12ecb7be3ac36b5ccc94f714f1b13d9e8ba6"}