{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:X7HSZESBMI54HNTR3GAHRMGG4M","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":"3f6ef9ad47596d61217c226b0e4aae4c2bd263ae7b030eb20f602cecd03f4037","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-02-15T22:08:29Z","title_canon_sha256":"c411aced15ba497552b6a78c92b573676d8d0fd2c2c5da2d60bfb5c595486382"},"schema_version":"1.0","source":{"id":"2202.07754","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.07754","created_at":"2026-07-05T04:46:53Z"},{"alias_kind":"arxiv_version","alias_value":"2202.07754v3","created_at":"2026-07-05T04:46:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.07754","created_at":"2026-07-05T04:46:53Z"},{"alias_kind":"pith_short_12","alias_value":"X7HSZESBMI54","created_at":"2026-07-05T04:46:53Z"},{"alias_kind":"pith_short_16","alias_value":"X7HSZESBMI54HNTR","created_at":"2026-07-05T04:46:53Z"},{"alias_kind":"pith_short_8","alias_value":"X7HSZESB","created_at":"2026-07-05T04:46:53Z"}],"graph_snapshots":[{"event_id":"sha256:a5ede93c2608c154ca565facf7df908c0803b667c6d001a486b1b9d692f6cdf2","target":"graph","created_at":"2026-07-05T04:46:53Z","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/2202.07754/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Many measurement modalities which perform imaging by probing an object pixel-by-pixel, such as via Photoacoustic Microscopy, produce a multi-dimensional feature (typically a time-domain signal) at each pixel. In principle, the many degrees of freedom in the time-domain signal would admit the possibility of significant multi-modal information being implicitly present, much more than a single scalar \"brightness\", regarding the underlying targets being observed. However, the measured signal is neither a weighted-sum of basis functions (such as principal components) nor one of a set of prototypes ","authors_text":"Nicholas Pellegrino, Parsin Haji Reza, Paul Fieguth","cross_cats":["eess.SP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-02-15T22:08:29Z","title":"K-Means for Noise-Insensitive Multi-Dimensional Feature Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.07754","kind":"arxiv","version":3},"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":"sha256:4be3d3c0a9dad6991c5124dae28f5c1f01311b350a539abfadb656e5068dc4a0","target":"record","created_at":"2026-07-05T04:46:53Z","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":"3f6ef9ad47596d61217c226b0e4aae4c2bd263ae7b030eb20f602cecd03f4037","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2022-02-15T22:08:29Z","title_canon_sha256":"c411aced15ba497552b6a78c92b573676d8d0fd2c2c5da2d60bfb5c595486382"},"schema_version":"1.0","source":{"id":"2202.07754","kind":"arxiv","version":3}},"canonical_sha256":"bfcf2c9241623bc3b671d98078b0c6e30b01822f7154d01a5d43525faae1a7f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfcf2c9241623bc3b671d98078b0c6e30b01822f7154d01a5d43525faae1a7f6","first_computed_at":"2026-07-05T04:46:53.047572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:46:53.047572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8jCYeo3GZPrknuBKjh3YqRSJTx1EsLu6uxVe0R01+B7KtgjwgmoR1OfMBLVtO5bXi5I9Xy24OMTgByJnjpnEAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:46:53.047944Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.07754","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4be3d3c0a9dad6991c5124dae28f5c1f01311b350a539abfadb656e5068dc4a0","sha256:a5ede93c2608c154ca565facf7df908c0803b667c6d001a486b1b9d692f6cdf2"],"state_sha256":"3041ea429649aae83ab2a2175d5d90872bfd43bbcfefa4ea413fb2c4711c6f3d"}