{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:46XNAVATK2UYDKZWYNTNZU253S","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":"262b6ca714f7e254def8c872b1ff54bae292d0f8a0f6c7c2debc6b290cd546af","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-29T09:01:58Z","title_canon_sha256":"8fb5ce228b1e31f3596bccf7ab9b6cf8b66dd442898bdd1ea55c2cd8aa20b68e"},"schema_version":"1.0","source":{"id":"2105.14255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.14255","created_at":"2026-07-05T02:44:21Z"},{"alias_kind":"arxiv_version","alias_value":"2105.14255v1","created_at":"2026-07-05T02:44:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.14255","created_at":"2026-07-05T02:44:21Z"},{"alias_kind":"pith_short_12","alias_value":"46XNAVATK2UY","created_at":"2026-07-05T02:44:21Z"},{"alias_kind":"pith_short_16","alias_value":"46XNAVATK2UYDKZW","created_at":"2026-07-05T02:44:21Z"},{"alias_kind":"pith_short_8","alias_value":"46XNAVAT","created_at":"2026-07-05T02:44:21Z"}],"graph_snapshots":[{"event_id":"sha256:8bea745fb28f7223a61064d384578c6b1439efee04ae448d151774b0342be2d5","target":"graph","created_at":"2026-07-05T02:44:21Z","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/2105.14255/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photoacoustic (PA) computed tomography (PACT) shows great potentials in various preclinical and clinical applications. A great number of measurements are the premise that obtains a high-quality image, which implies a low imaging rate or a high system cost. The artifacts or sidelobes could pollute the image if we decrease the number of measured channels or limit the detected view. In this paper, a novel compressed sensing method for PACT using an untrained neural network is proposed, which decreases half number of the measured channels and recoveries enough details. This method uses a neural ne","authors_text":"Changchun Yang, Fei Gao, Hengrong Lan, Juze Zhang","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-29T09:01:58Z","title":"Compressed Sensing for Photoacoustic Computed Tomography Using an Untrained Neural Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.14255","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":"sha256:079d6b5ff5d42e7e0100952a0f062a25210727e2fc26611abe9b0b484789a879","target":"record","created_at":"2026-07-05T02:44:21Z","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":"262b6ca714f7e254def8c872b1ff54bae292d0f8a0f6c7c2debc6b290cd546af","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-05-29T09:01:58Z","title_canon_sha256":"8fb5ce228b1e31f3596bccf7ab9b6cf8b66dd442898bdd1ea55c2cd8aa20b68e"},"schema_version":"1.0","source":{"id":"2105.14255","kind":"arxiv","version":1}},"canonical_sha256":"e7aed0541356a981ab36c366dcd35ddc9128e635d97abd5c171a3fd2277541bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7aed0541356a981ab36c366dcd35ddc9128e635d97abd5c171a3fd2277541bd","first_computed_at":"2026-07-05T02:44:21.959751Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:44:21.959751Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hGUkYrvd2sB9/vs/pGLofDtInJXJSAkAJVKjd5TdqO2j5WFa+cMb6q7JUetB3dDX7UbK4d9lmUTsBeuoOwyZCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:44:21.960175Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.14255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:079d6b5ff5d42e7e0100952a0f062a25210727e2fc26611abe9b0b484789a879","sha256:8bea745fb28f7223a61064d384578c6b1439efee04ae448d151774b0342be2d5"],"state_sha256":"2df5b5b452899332aef7e43aa810ae684692a2d90b1d76197f6fc567cba167de"}