{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:PBYKAUFTJBLZDJPNHFFGIX2JWH","short_pith_number":"pith:PBYKAUFT","canonical_record":{"source":{"id":"2006.11160","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-19T14:45:10Z","cross_cats_sorted":[],"title_canon_sha256":"4bc9d868fd101b6f12af39354fe5c499c38b7b132c968494922b4ff3d0ea534b","abstract_canon_sha256":"0898541008f5b86be4bde9df7b1606e5350c66caf0c264315d2cffcba1f8dca3"},"schema_version":"1.0"},"canonical_sha256":"7870a050b3485791a5ed394a645f49b1d739d4436e0016114702f1bf54d6c351","source":{"kind":"arxiv","id":"2006.11160","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.11160","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"2006.11160v1","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.11160","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"PBYKAUFTJBLZ","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"pith_short_16","alias_value":"PBYKAUFTJBLZDJPN","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"pith_short_8","alias_value":"PBYKAUFT","created_at":"2026-07-05T01:21:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:PBYKAUFTJBLZDJPNHFFGIX2JWH","target":"record","payload":{"canonical_record":{"source":{"id":"2006.11160","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-19T14:45:10Z","cross_cats_sorted":[],"title_canon_sha256":"4bc9d868fd101b6f12af39354fe5c499c38b7b132c968494922b4ff3d0ea534b","abstract_canon_sha256":"0898541008f5b86be4bde9df7b1606e5350c66caf0c264315d2cffcba1f8dca3"},"schema_version":"1.0"},"canonical_sha256":"7870a050b3485791a5ed394a645f49b1d739d4436e0016114702f1bf54d6c351","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:21:05.546953Z","signature_b64":"ZNM3ap+Ajg9dIE7DX13Or5EO89TdciAOnnQMbXQEaOWHbjTQMJfxDDwtcc7JaVEFVvWRyADqsMu0VnmgMLjTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7870a050b3485791a5ed394a645f49b1d739d4436e0016114702f1bf54d6c351","last_reissued_at":"2026-07-05T01:21:05.546390Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:21:05.546390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.11160","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dLeBJ1BY4WBMu28cV3YHawqPT1MdFmw8B7dvJZNFe62ahiuCHa9zWA9uCbWhcSdrWitdyaqIY+fYsLUP8eAMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:37:36.555329Z"},"content_sha256":"cc50ccd9851d3bd3003a88c9cb16cbe6482a5eb93b4193ad54fa5ef02a9d9e5e","schema_version":"1.0","event_id":"sha256:cc50ccd9851d3bd3003a88c9cb16cbe6482a5eb93b4193ad54fa5ef02a9d9e5e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:PBYKAUFTJBLZDJPNHFFGIX2JWH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Blind deconvolution in astronomy with adaptive optics: the parametric marginal approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Benoit Neichel, Laurent Mugnier, Romain F\\'etick, Thierry Fusco","submitted_at":"2020-06-19T14:45:10Z","abstract_excerpt":"One of the major limitations of adaptive optics (AO) corrected image post-processing is the lack of knowledge on the system point spread function (PSF). The PSF is not always available as a direct imaging on isolated point like objects such as stars. Its prediction using AO telemetry also suffers from serious limitations and requires complex and yet not fully operational algorithms. A very attractive solution consists in a direct PSF estimation using the scientific images themselves thanks to blind or myopic post-processing approaches. We demonstrate that such approaches suffer from severe lim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.11160","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.11160/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:21:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j/mIqv1XsOzXOuQb1K51GdAdwveFVR/kTH9rQuDblGZaVtg3pCbkvcYDl+SlSWjSbJq1M3TMSBaLy4SEzWJNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T01:37:36.556098Z"},"content_sha256":"3bc5790042306e1702d83bf5eb23efbc1a481fda785c46826007fbe44eba69d9","schema_version":"1.0","event_id":"sha256:3bc5790042306e1702d83bf5eb23efbc1a481fda785c46826007fbe44eba69d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH/bundle.json","state_url":"https://pith.science/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-06T01:37:36Z","links":{"resolver":"https://pith.science/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH","bundle":"https://pith.science/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH/bundle.json","state":"https://pith.science/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PBYKAUFTJBLZDJPNHFFGIX2JWH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:PBYKAUFTJBLZDJPNHFFGIX2JWH","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":"0898541008f5b86be4bde9df7b1606e5350c66caf0c264315d2cffcba1f8dca3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-19T14:45:10Z","title_canon_sha256":"4bc9d868fd101b6f12af39354fe5c499c38b7b132c968494922b4ff3d0ea534b"},"schema_version":"1.0","source":{"id":"2006.11160","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.11160","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"arxiv_version","alias_value":"2006.11160v1","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.11160","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"pith_short_12","alias_value":"PBYKAUFTJBLZ","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"pith_short_16","alias_value":"PBYKAUFTJBLZDJPN","created_at":"2026-07-05T01:21:05Z"},{"alias_kind":"pith_short_8","alias_value":"PBYKAUFT","created_at":"2026-07-05T01:21:05Z"}],"graph_snapshots":[{"event_id":"sha256:3bc5790042306e1702d83bf5eb23efbc1a481fda785c46826007fbe44eba69d9","target":"graph","created_at":"2026-07-05T01:21:05Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2006.11160/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"One of the major limitations of adaptive optics (AO) corrected image post-processing is the lack of knowledge on the system point spread function (PSF). The PSF is not always available as a direct imaging on isolated point like objects such as stars. Its prediction using AO telemetry also suffers from serious limitations and requires complex and yet not fully operational algorithms. A very attractive solution consists in a direct PSF estimation using the scientific images themselves thanks to blind or myopic post-processing approaches. We demonstrate that such approaches suffer from severe lim","authors_text":"Benoit Neichel, Laurent Mugnier, Romain F\\'etick, Thierry Fusco","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-19T14:45:10Z","title":"Blind deconvolution in astronomy with adaptive optics: the parametric marginal approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.11160","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:cc50ccd9851d3bd3003a88c9cb16cbe6482a5eb93b4193ad54fa5ef02a9d9e5e","target":"record","created_at":"2026-07-05T01:21:05Z","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":"0898541008f5b86be4bde9df7b1606e5350c66caf0c264315d2cffcba1f8dca3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-19T14:45:10Z","title_canon_sha256":"4bc9d868fd101b6f12af39354fe5c499c38b7b132c968494922b4ff3d0ea534b"},"schema_version":"1.0","source":{"id":"2006.11160","kind":"arxiv","version":1}},"canonical_sha256":"7870a050b3485791a5ed394a645f49b1d739d4436e0016114702f1bf54d6c351","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7870a050b3485791a5ed394a645f49b1d739d4436e0016114702f1bf54d6c351","first_computed_at":"2026-07-05T01:21:05.546390Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:21:05.546390Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZNM3ap+Ajg9dIE7DX13Or5EO89TdciAOnnQMbXQEaOWHbjTQMJfxDDwtcc7JaVEFVvWRyADqsMu0VnmgMLjTDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:21:05.546953Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.11160","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc50ccd9851d3bd3003a88c9cb16cbe6482a5eb93b4193ad54fa5ef02a9d9e5e","sha256:3bc5790042306e1702d83bf5eb23efbc1a481fda785c46826007fbe44eba69d9"],"state_sha256":"f238cd94aa8c39561b845d633cc22c5cc7a7df0e00da0bbb6210f7732d5a5d05"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7YFQxYjxTrKryQD2gu9Pnqqm+E3Za2l2YIwSHhTcvWzj1ghkJRmRzQBPHlrTJ4R/keoiJpJog7pwe7bp46XyCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T01:37:36.560766Z","bundle_sha256":"863ec554cbe25e44da3c376b592a47860bf4819399837d4ad799cce24fcf2b93"}}