{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WBBJVWI2NMCUPMIND6VDGL6HC7","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":"60dbab29c0912a5b04659b5fc6734c1ec746228b5412622680a22f8e61ac2df9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-25T18:06:35Z","title_canon_sha256":"2e9f87cd0a370c52332d7151def90f3623daa00bd07e6cfe12d563bba2a6198a"},"schema_version":"1.0","source":{"id":"2507.19592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.19592","created_at":"2026-07-05T11:43:37Z"},{"alias_kind":"arxiv_version","alias_value":"2507.19592v1","created_at":"2026-07-05T11:43:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.19592","created_at":"2026-07-05T11:43:37Z"},{"alias_kind":"pith_short_12","alias_value":"WBBJVWI2NMCU","created_at":"2026-07-05T11:43:37Z"},{"alias_kind":"pith_short_16","alias_value":"WBBJVWI2NMCUPMIN","created_at":"2026-07-05T11:43:37Z"},{"alias_kind":"pith_short_8","alias_value":"WBBJVWI2","created_at":"2026-07-05T11:43:37Z"}],"graph_snapshots":[{"event_id":"sha256:b2141c789ea9632440bb57462a8c2c9367b3f7a250cfd57e8dec0ca87a6a096c","target":"graph","created_at":"2026-07-05T11:43:37Z","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/2507.19592/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Consistent surgical instrument segmentation is critical for automation in robot-assisted surgery. Yet, existing methods only treat instrument-level instance segmentation (IIS) or part-level semantic segmentation (PSS) separately, without interaction between these tasks. In this work, we formulate a surgical tool segmentation as a unified part-aware instance segmentation (PIS) problem and introduce SurgPIS, the first PIS model for surgical instruments. Our method adopts a transformer-based mask classification approach and introduces part-specific queries derived from instrument-level object que","authors_text":"Charlie Budd, Meng Wei, Miaojing Shi, Oluwatosin Alabi, Tom Vercauteren","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-25T18:06:35Z","title":"SurgPIS: Surgical-instrument-level Instances and Part-level Semantics for Weakly-supervised Part-aware Instance Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.19592","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":"sha256:1de39102f3a8fed4692ba67e7f09f0f2821785c00ebe7b8663ffbf6c4ea3659c","target":"record","created_at":"2026-07-05T11:43:37Z","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":"60dbab29c0912a5b04659b5fc6734c1ec746228b5412622680a22f8e61ac2df9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-07-25T18:06:35Z","title_canon_sha256":"2e9f87cd0a370c52332d7151def90f3623daa00bd07e6cfe12d563bba2a6198a"},"schema_version":"1.0","source":{"id":"2507.19592","kind":"arxiv","version":1}},"canonical_sha256":"b0429ad91a6b0547b10d1faa332fc717c2be50589655a7eb11f52d43cb7b381a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0429ad91a6b0547b10d1faa332fc717c2be50589655a7eb11f52d43cb7b381a","first_computed_at":"2026-07-05T11:43:37.164652Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:43:37.164652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"StXIwxhJ7XfX+4NRf6JX1IZF7mNcmCPkeYL4VKPuLtTYmcMPzFitq0PbuKK4hKDmlVp9fCxXBzULTfVTZKz8DA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:43:37.165181Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.19592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1de39102f3a8fed4692ba67e7f09f0f2821785c00ebe7b8663ffbf6c4ea3659c","sha256:b2141c789ea9632440bb57462a8c2c9367b3f7a250cfd57e8dec0ca87a6a096c"],"state_sha256":"12ad94b5885c1bd26ee4260b5997cd5100ebdaef1a6d1faf976b37db5531993f"}