{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IMLHMJW47S6MBE6S5YLUAOBFED","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":"653c93458e47611cd858b02b4a148705e60e51532a379f5e2a11cc11839b9335","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-10-05T18:00:00Z","title_canon_sha256":"a51661cb3dca5a44f371beac2fba3fcbe4afeba4de555c3f1273654b83e5c3d6"},"schema_version":"1.0","source":{"id":"1810.02821","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.02821","created_at":"2026-05-17T23:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"1810.02821v1","created_at":"2026-05-17T23:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.02821","created_at":"2026-05-17T23:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"IMLHMJW47S6M","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IMLHMJW47S6MBE6S","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IMLHMJW4","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:5ccdbfa5202f13c073338bb2eba9e4ed1997899dfd19efaa5d783ec765f1aa28","target":"graph","created_at":"2026-05-17T23:59:32Z","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":"We use Dataflow Engines (DFE) to construct an efficient Wiener filter of noisy and incomplete image data, and to quickly draw probabilistic samples of the compatible true underlying images from the Wiener posterior. Dataflow computing is a powerful approach using reconfigurable hardware, which can be deeply pipelined and is intrinsically parallel. The unique Wiener-filtered image is the minimum-variance linear estimate of the true image (if the signal and noise covariances are known) and the most probable true image (if the signal and noise are Gaussian distributed). However, many images are c","authors_text":"Alan F. Heavens, Niall Jeffrey, Philip D. Fortio","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-10-05T18:00:00Z","title":"Fast Sampling from Wiener Posteriors for Image Data with Dataflow Engines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.02821","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:dd47c2f75152278c6eefdff86a604bd95985dd9b9a73d0d588ca256269352548","target":"record","created_at":"2026-05-17T23:59:32Z","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":"653c93458e47611cd858b02b4a148705e60e51532a379f5e2a11cc11839b9335","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-10-05T18:00:00Z","title_canon_sha256":"a51661cb3dca5a44f371beac2fba3fcbe4afeba4de555c3f1273654b83e5c3d6"},"schema_version":"1.0","source":{"id":"1810.02821","kind":"arxiv","version":1}},"canonical_sha256":"43167626dcfcbcc093d2ee1740382520f228219410796280e8557c483cc8aaa2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43167626dcfcbcc093d2ee1740382520f228219410796280e8557c483cc8aaa2","first_computed_at":"2026-05-17T23:59:32.169219Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:32.169219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YE3QJZoGVARShUsac5+5Ur513sf3QyyPzN7xTjDBBaXwZvuqKN4FbPVklKLBsLvRq796QVnb3+YBTSygtH2nCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:32.169761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.02821","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd47c2f75152278c6eefdff86a604bd95985dd9b9a73d0d588ca256269352548","sha256:5ccdbfa5202f13c073338bb2eba9e4ed1997899dfd19efaa5d783ec765f1aa28"],"state_sha256":"95c294cf5a9a3445a7f82d79e270beea547ad2d3c9a8cfb31117f250d78885bc"}