{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:5W2PWODC5A5V44XSBBM3XQ5DPH","short_pith_number":"pith:5W2PWODC","canonical_record":{"source":{"id":"2501.15385","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-26T03:54:14Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"e764a6f886eb0107523dd3122c43e25d72858a11ee3d88a77bea46c8c430679b","abstract_canon_sha256":"d327480e2bfe6edf3472afbe1996ca68a95b0038c74585959996bea7dbd70b8a"},"schema_version":"1.0"},"canonical_sha256":"edb4fb3862e83b5e72f20859bbc3a379cfb490375b4c050aba39d39bd0c94b6d","source":{"kind":"arxiv","id":"2501.15385","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.15385","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"arxiv_version","alias_value":"2501.15385v1","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.15385","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"pith_short_12","alias_value":"5W2PWODC5A5V","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"pith_short_16","alias_value":"5W2PWODC5A5V44XS","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"pith_short_8","alias_value":"5W2PWODC","created_at":"2026-07-05T10:05:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:5W2PWODC5A5V44XSBBM3XQ5DPH","target":"record","payload":{"canonical_record":{"source":{"id":"2501.15385","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-26T03:54:14Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"e764a6f886eb0107523dd3122c43e25d72858a11ee3d88a77bea46c8c430679b","abstract_canon_sha256":"d327480e2bfe6edf3472afbe1996ca68a95b0038c74585959996bea7dbd70b8a"},"schema_version":"1.0"},"canonical_sha256":"edb4fb3862e83b5e72f20859bbc3a379cfb490375b4c050aba39d39bd0c94b6d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:05:28.464828Z","signature_b64":"zAyhm1z5TMioUOxIX0O26ROm57Z1laCbe/9PooduUXvxNBL4ZDnD4POZ1lJCIOywXYZeu/egKjt+O9TmeUhgBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"edb4fb3862e83b5e72f20859bbc3a379cfb490375b4c050aba39d39bd0c94b6d","last_reissued_at":"2026-07-05T10:05:28.464302Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:05:28.464302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.15385","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:05:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Rvdp1JL2vNYitNQ3lzGoJzAxUn0jO/JXYedHzpAK+J3tRGU8QSJKC5MtGYqGoSVe2r2oJLhun0W0C3voH9lDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T04:59:22.765289Z"},"content_sha256":"8981819fe90c91d094aaad7d6804f7f81aea4134539693eac940e0e4f1c55b87","schema_version":"1.0","event_id":"sha256:8981819fe90c91d094aaad7d6804f7f81aea4134539693eac940e0e4f1c55b87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:5W2PWODC5A5V44XSBBM3XQ5DPH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DDUNet: Dual Dynamic U-Net for Highly-Efficient Cloud Segmentation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Hewei Wang, Jinfeng Xu, Puzhen Wu, Shaofan Wang, Soumyabrata Dev, Yijie Li, Yunzhong Xiao","submitted_at":"2025-01-26T03:54:14Z","abstract_excerpt":"Cloud segmentation amounts to separating cloud pixels from non-cloud pixels in an image. Current deep learning methods for cloud segmentation suffer from three issues. (a) Constrain on their receptive field due to the fixed size of the convolution kernel. (b) Lack of robustness towards different scenarios. (c) Requirement of a large number of parameters and limitations for real-time implementation. To address these issues, we propose a Dual Dynamic U-Net (DDUNet) for supervised cloud segmentation. The DDUNet adheres to a U-Net architecture and integrates two crucial modules: the dynamic multi-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.15385","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2501.15385/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:05:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P1dOiqF51EOz7Z55K8C81UG0FWFAacJ6ZTiJTILSQoBQKFqevABz5lPrBn4vfNc+/hnBRozxcvq9jmUnaelUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T04:59:22.765784Z"},"content_sha256":"ab8d2e3536b8499824ed0906eb4ebd22f8da6c9747a713af4571a21fed0ba8a0","schema_version":"1.0","event_id":"sha256:ab8d2e3536b8499824ed0906eb4ebd22f8da6c9747a713af4571a21fed0ba8a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5W2PWODC5A5V44XSBBM3XQ5DPH/bundle.json","state_url":"https://pith.science/pith/5W2PWODC5A5V44XSBBM3XQ5DPH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5W2PWODC5A5V44XSBBM3XQ5DPH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-06T04:59:22Z","links":{"resolver":"https://pith.science/pith/5W2PWODC5A5V44XSBBM3XQ5DPH","bundle":"https://pith.science/pith/5W2PWODC5A5V44XSBBM3XQ5DPH/bundle.json","state":"https://pith.science/pith/5W2PWODC5A5V44XSBBM3XQ5DPH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5W2PWODC5A5V44XSBBM3XQ5DPH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:5W2PWODC5A5V44XSBBM3XQ5DPH","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":"d327480e2bfe6edf3472afbe1996ca68a95b0038c74585959996bea7dbd70b8a","cross_cats_sorted":["eess.IV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-26T03:54:14Z","title_canon_sha256":"e764a6f886eb0107523dd3122c43e25d72858a11ee3d88a77bea46c8c430679b"},"schema_version":"1.0","source":{"id":"2501.15385","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.15385","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"arxiv_version","alias_value":"2501.15385v1","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.15385","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"pith_short_12","alias_value":"5W2PWODC5A5V","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"pith_short_16","alias_value":"5W2PWODC5A5V44XS","created_at":"2026-07-05T10:05:28Z"},{"alias_kind":"pith_short_8","alias_value":"5W2PWODC","created_at":"2026-07-05T10:05:28Z"}],"graph_snapshots":[{"event_id":"sha256:ab8d2e3536b8499824ed0906eb4ebd22f8da6c9747a713af4571a21fed0ba8a0","target":"graph","created_at":"2026-07-05T10:05:28Z","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/2501.15385/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cloud segmentation amounts to separating cloud pixels from non-cloud pixels in an image. Current deep learning methods for cloud segmentation suffer from three issues. (a) Constrain on their receptive field due to the fixed size of the convolution kernel. (b) Lack of robustness towards different scenarios. (c) Requirement of a large number of parameters and limitations for real-time implementation. To address these issues, we propose a Dual Dynamic U-Net (DDUNet) for supervised cloud segmentation. The DDUNet adheres to a U-Net architecture and integrates two crucial modules: the dynamic multi-","authors_text":"Hewei Wang, Jinfeng Xu, Puzhen Wu, Shaofan Wang, Soumyabrata Dev, Yijie Li, Yunzhong Xiao","cross_cats":["eess.IV"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-26T03:54:14Z","title":"DDUNet: Dual Dynamic U-Net for Highly-Efficient Cloud Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.15385","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":"sha256:8981819fe90c91d094aaad7d6804f7f81aea4134539693eac940e0e4f1c55b87","target":"record","created_at":"2026-07-05T10:05:28Z","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":"d327480e2bfe6edf3472afbe1996ca68a95b0038c74585959996bea7dbd70b8a","cross_cats_sorted":["eess.IV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-01-26T03:54:14Z","title_canon_sha256":"e764a6f886eb0107523dd3122c43e25d72858a11ee3d88a77bea46c8c430679b"},"schema_version":"1.0","source":{"id":"2501.15385","kind":"arxiv","version":1}},"canonical_sha256":"edb4fb3862e83b5e72f20859bbc3a379cfb490375b4c050aba39d39bd0c94b6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"edb4fb3862e83b5e72f20859bbc3a379cfb490375b4c050aba39d39bd0c94b6d","first_computed_at":"2026-07-05T10:05:28.464302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:05:28.464302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zAyhm1z5TMioUOxIX0O26ROm57Z1laCbe/9PooduUXvxNBL4ZDnD4POZ1lJCIOywXYZeu/egKjt+O9TmeUhgBA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:05:28.464828Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.15385","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8981819fe90c91d094aaad7d6804f7f81aea4134539693eac940e0e4f1c55b87","sha256:ab8d2e3536b8499824ed0906eb4ebd22f8da6c9747a713af4571a21fed0ba8a0"],"state_sha256":"6a3377f2efbe49ad3c104563a5ef2c8d2f85509292a908985a415e9ff8c49c2d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2l/HUL7zubGhucIh7gco9YdhouiLqYqY9eQIeSx6+29SbtsGAc/DiKGmpzYhpu98USzWTmeklZr4dDI8lsh6CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T04:59:22.769860Z","bundle_sha256":"869a243d0d84dee497a455deaadeb42e44b129d6c5cc68503c6f2d70bf76e1a5"}}