{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2Q7RJKX54LW3ZL2FEDORVVSZ2N","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":"066d181da5a359b715f3eb8a26a81e6c8746f594ccaeffc45416519eaaac904f","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-04-02T19:53:14Z","title_canon_sha256":"eb290729b0850675476d0e45c2c36d3a2d43a2a0a6830053435a9644e15a166a"},"schema_version":"1.0","source":{"id":"2004.01241","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.01241","created_at":"2026-07-05T01:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"2004.01241v3","created_at":"2026-07-05T01:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.01241","created_at":"2026-07-05T01:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"2Q7RJKX54LW3","created_at":"2026-07-05T01:34:52Z"},{"alias_kind":"pith_short_16","alias_value":"2Q7RJKX54LW3ZL2F","created_at":"2026-07-05T01:34:52Z"},{"alias_kind":"pith_short_8","alias_value":"2Q7RJKX5","created_at":"2026-07-05T01:34:52Z"}],"graph_snapshots":[{"event_id":"sha256:925cb9baef5e0ab3715299c3195294fabcb36cbef7106785ecd55d50f2d1a6d8","target":"graph","created_at":"2026-07-05T01:34:52Z","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/2004.01241/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we present the first large-scale dataset for semantic Segmentation of Underwater IMagery (SUIM). It contains over 1500 images with pixel annotations for eight object categories: fish (vertebrates), reefs (invertebrates), aquatic plants, wrecks/ruins, human divers, robots, and sea-floor. The images have been rigorously collected during oceanic explorations and human-robot collaborative experiments, and annotated by human participants. We also present a benchmark evaluation of state-of-the-art semantic segmentation approaches based on standard performance metrics. In addition, we ","authors_text":"Chelsey Edge, Christopher Morse, Junaed Sattar, Md Jahidul Islam, Muntaqim Mehtaz, Peigen Luo, Sadman Sakib Enan, Yuyang Xiao","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-04-02T19:53:14Z","title":"Semantic Segmentation of Underwater Imagery: Dataset and Benchmark"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.01241","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:b51c252e142d4592526d4a724544641c68a689d6727510b8c145a94818068a4c","target":"record","created_at":"2026-07-05T01:34:52Z","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":"066d181da5a359b715f3eb8a26a81e6c8746f594ccaeffc45416519eaaac904f","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-04-02T19:53:14Z","title_canon_sha256":"eb290729b0850675476d0e45c2c36d3a2d43a2a0a6830053435a9644e15a166a"},"schema_version":"1.0","source":{"id":"2004.01241","kind":"arxiv","version":3}},"canonical_sha256":"d43f14aafde2edbcaf4520dd1ad659d36e46a8e85e250c6fe0d7e5c183ba1f63","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d43f14aafde2edbcaf4520dd1ad659d36e46a8e85e250c6fe0d7e5c183ba1f63","first_computed_at":"2026-07-05T01:34:52.911364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:34:52.911364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3pOVzG9JFH/jrmi+Es8JMhJOUUu3Jb4r4NIkLN2VsOeEcjwN1W64PZbETfsBqhOREfoql59L5HChSonie4WaCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:34:52.911764Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.01241","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b51c252e142d4592526d4a724544641c68a689d6727510b8c145a94818068a4c","sha256:925cb9baef5e0ab3715299c3195294fabcb36cbef7106785ecd55d50f2d1a6d8"],"state_sha256":"d2c8741716e378e9bf288af55739d67ff51aa0eb8c11772757076e04ba97a3f0"}