{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:RGCEDAREE2UZFJKSRXFRXLTOKP","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":"1af0f190d6de436614f3a76a0ff25564ece9b520758a73f2d3f924ccbaf9870c","cross_cats_sorted":["eess.SP","physics.ao-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-21T22:33:22Z","title_canon_sha256":"5618212327ca5fd18099e07458d6e4c0bbfd2ad4e3dcfa7569d7ecbbe5037c01"},"schema_version":"1.0","source":{"id":"2204.10428","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.10428","created_at":"2026-07-05T06:25:03Z"},{"alias_kind":"arxiv_version","alias_value":"2204.10428v2","created_at":"2026-07-05T06:25:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.10428","created_at":"2026-07-05T06:25:03Z"},{"alias_kind":"pith_short_12","alias_value":"RGCEDAREE2UZ","created_at":"2026-07-05T06:25:03Z"},{"alias_kind":"pith_short_16","alias_value":"RGCEDAREE2UZFJKS","created_at":"2026-07-05T06:25:03Z"},{"alias_kind":"pith_short_8","alias_value":"RGCEDARE","created_at":"2026-07-05T06:25:03Z"}],"graph_snapshots":[{"event_id":"sha256:490335781e669c87218c87422cb2bba442ae6424faeefd934feb3800441c946e","target":"graph","created_at":"2026-07-05T06:25:03Z","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/2204.10428/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Circular Synthetic aperture sonars (CSAS) capture multiple observations of a scene to reconstruct high-resolution images. We can characterize resolution by modeling CSAS imaging as the convolution between a scene's underlying point scattering distribution and a system-dependent point spread function (PSF). The PSF is a function of the transmitted waveform's bandwidth and determines a fixed degree of blurring on reconstructed imagery. In theory, deconvolution overcomes bandwidth limitations by reversing the PSF-induced blur and recovering the scene's scattering distribution. However, deconvolut","authors_text":"Albert Reed, Daniel C. Brown, Suren Jayasuriya, Thomas Blanford","cross_cats":["eess.SP","physics.ao-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-21T22:33:22Z","title":"SINR: Deconvolving Circular SAS Images Using Implicit Neural Representations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.10428","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":"sha256:84155b1e4e999670501ddf0d7d2e59c4f0c4e2d5b108d95f23a05c9ca1ccabec","target":"record","created_at":"2026-07-05T06:25:03Z","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":"1af0f190d6de436614f3a76a0ff25564ece9b520758a73f2d3f924ccbaf9870c","cross_cats_sorted":["eess.SP","physics.ao-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.IV","submitted_at":"2022-04-21T22:33:22Z","title_canon_sha256":"5618212327ca5fd18099e07458d6e4c0bbfd2ad4e3dcfa7569d7ecbbe5037c01"},"schema_version":"1.0","source":{"id":"2204.10428","kind":"arxiv","version":2}},"canonical_sha256":"898441822426a992a5528dcb1bae6e53e471f0325308c78bc70cd7ebc2505821","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"898441822426a992a5528dcb1bae6e53e471f0325308c78bc70cd7ebc2505821","first_computed_at":"2026-07-05T06:25:03.669913Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:25:03.669913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Zneujbb3Rf2f13rmHnkHf7krfiH2/KVhw0w8VWlu2cjP9xIYeFJVElEcJzR8yHI20aocJn1SpXqJATTLQFpcBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:25:03.670290Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.10428","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84155b1e4e999670501ddf0d7d2e59c4f0c4e2d5b108d95f23a05c9ca1ccabec","sha256:490335781e669c87218c87422cb2bba442ae6424faeefd934feb3800441c946e"],"state_sha256":"719f618ce642850a03ea23b4784a92785ad35ef8dc17f33f12387569b646f611"}