{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:64SJFFTXHJTD7WGB5KR2AHZXVB","short_pith_number":"pith:64SJFFTX","schema_version":"1.0","canonical_sha256":"f7249296773a663fd8c1eaa3a01f37a845d10d79427c6f6bcc1fbb5f4fdf3b3d","source":{"kind":"arxiv","id":"1703.04259","version":3},"attestation_state":"computed","paper":{"title":"Spatial Linear Dark Field Control: Stabilizing Deep Contrast for Exoplanet Imaging Using Bright Speckles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Jared R Males, Kelsey Miller, Olivier Guyon","submitted_at":"2017-03-13T05:35:57Z","abstract_excerpt":"Direct imaging of exoplanets requires establishing and maintaining a high contrast dark field (DF) within the science image to a high degree of precision (10^-10). Current approaches aimed at establishing the DF, such as electric field conjugation (EFC), have been demonstrated in the lab and have proven capable of high contrast DF generation. The same approaches have been considered for the maintenance of the DF as well. However, these methods rely on phase diversity measurements which require field modulation; this interrupts the DF and consequently competes with the science acquisition. In t"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1703.04259","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-03-13T05:35:57Z","cross_cats_sorted":[],"title_canon_sha256":"cc0a3c0243f96eced96899b076e9a37f46e5464ce164181443e1abd9a3a5471d","abstract_canon_sha256":"3101e7c1ba9d0dd076881ee9d0f6a1c2d92d28938861f10ab2e0e8f17fbb1964"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:31.115398Z","signature_b64":"v3VKEebfgZtTqAr4PsohN9o+r4PPmX0Kk3kc+5YDEtqmCBw7h1s2q9415V1ySy7YRNXyhKA0z1hCdFUZ00AgAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7249296773a663fd8c1eaa3a01f37a845d10d79427c6f6bcc1fbb5f4fdf3b3d","last_reissued_at":"2026-05-18T00:34:31.114992Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:31.114992Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spatial Linear Dark Field Control: Stabilizing Deep Contrast for Exoplanet Imaging Using Bright Speckles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Jared R Males, Kelsey Miller, Olivier Guyon","submitted_at":"2017-03-13T05:35:57Z","abstract_excerpt":"Direct imaging of exoplanets requires establishing and maintaining a high contrast dark field (DF) within the science image to a high degree of precision (10^-10). Current approaches aimed at establishing the DF, such as electric field conjugation (EFC), have been demonstrated in the lab and have proven capable of high contrast DF generation. The same approaches have been considered for the maintenance of the DF as well. However, these methods rely on phase diversity measurements which require field modulation; this interrupts the DF and consequently competes with the science acquisition. In t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04259","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1703.04259","created_at":"2026-05-18T00:34:31.115055+00:00"},{"alias_kind":"arxiv_version","alias_value":"1703.04259v3","created_at":"2026-05-18T00:34:31.115055+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04259","created_at":"2026-05-18T00:34:31.115055+00:00"},{"alias_kind":"pith_short_12","alias_value":"64SJFFTXHJTD","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_16","alias_value":"64SJFFTXHJTD7WGB","created_at":"2026-05-18T12:31:03.183658+00:00"},{"alias_kind":"pith_short_8","alias_value":"64SJFFTX","created_at":"2026-05-18T12:31:03.183658+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB","json":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB.json","graph_json":"https://pith.science/api/pith-number/64SJFFTXHJTD7WGB5KR2AHZXVB/graph.json","events_json":"https://pith.science/api/pith-number/64SJFFTXHJTD7WGB5KR2AHZXVB/events.json","paper":"https://pith.science/paper/64SJFFTX"},"agent_actions":{"view_html":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB","download_json":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB.json","view_paper":"https://pith.science/paper/64SJFFTX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1703.04259&json=true","fetch_graph":"https://pith.science/api/pith-number/64SJFFTXHJTD7WGB5KR2AHZXVB/graph.json","fetch_events":"https://pith.science/api/pith-number/64SJFFTXHJTD7WGB5KR2AHZXVB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB/action/storage_attestation","attest_author":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB/action/author_attestation","sign_citation":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB/action/citation_signature","submit_replication":"https://pith.science/pith/64SJFFTXHJTD7WGB5KR2AHZXVB/action/replication_record"}},"created_at":"2026-05-18T00:34:31.115055+00:00","updated_at":"2026-05-18T00:34:31.115055+00:00"}