{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:FQMREKURYNHIHMDSCUL2RAAMIV","short_pith_number":"pith:FQMREKUR","canonical_record":{"source":{"id":"2505.21238","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-27T14:19:30Z","cross_cats_sorted":[],"title_canon_sha256":"ba7685225a6cdb16eb4b54128db1e55b798b5a91b742d9eeb6316ad55515847b","abstract_canon_sha256":"bd6229911227c318aaa0fa34a5b40ef1a8d5b218e45007da8e41bd7997c54039"},"schema_version":"1.0"},"canonical_sha256":"2c19122a91c34e83b0721517a8800c4571c41c2424b3e36f85057106c7c7857a","source":{"kind":"arxiv","id":"2505.21238","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.21238","created_at":"2026-05-18T02:44:39Z"},{"alias_kind":"arxiv_version","alias_value":"2505.21238v3","created_at":"2026-05-18T02:44:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.21238","created_at":"2026-05-18T02:44:39Z"},{"alias_kind":"pith_short_12","alias_value":"FQMREKURYNHI","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"FQMREKURYNHIHMDS","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"FQMREKUR","created_at":"2026-05-18T12:33:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:FQMREKURYNHIHMDSCUL2RAAMIV","target":"record","payload":{"canonical_record":{"source":{"id":"2505.21238","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-27T14:19:30Z","cross_cats_sorted":[],"title_canon_sha256":"ba7685225a6cdb16eb4b54128db1e55b798b5a91b742d9eeb6316ad55515847b","abstract_canon_sha256":"bd6229911227c318aaa0fa34a5b40ef1a8d5b218e45007da8e41bd7997c54039"},"schema_version":"1.0"},"canonical_sha256":"2c19122a91c34e83b0721517a8800c4571c41c2424b3e36f85057106c7c7857a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:44:39.070760Z","signature_b64":"52iMOrow9cGxSNTx4lzIq0ZvvINhM60dGH1ZZpSHlvlzr75MMICnRZZfT39M/MApFo9TT8itd6UkOcA0fZ/BBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2c19122a91c34e83b0721517a8800c4571c41c2424b3e36f85057106c7c7857a","last_reissued_at":"2026-05-18T02:44:39.070103Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:44:39.070103Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.21238","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:44:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nzEGaXyrP/r5eSxImv59BkOBqB3i90oorhrAVyQuvi4sbExEyBLuzkDMEQ2+4NNpAg99/iOca/NaWrOAgplbDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T09:05:11.042817Z"},"content_sha256":"b9fe53687da44709119ad84ca73ba15c080222455043e0e0d0fc1440c53ffe7e","schema_version":"1.0","event_id":"sha256:b9fe53687da44709119ad84ca73ba15c080222455043e0e0d0fc1440c53ffe7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:FQMREKURYNHIHMDSCUL2RAAMIV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"3D-UIR: 3D Gaussian for Underwater 3D Scene Reconstruction via Physics Based Appearance-Medium Decoupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chongyi Li, Chunle Guo, Jieyu Yuan, Ruixing Wang, Xiongxin Tang, Yuanlin Zhang, Yujun Li","submitted_at":"2025-05-27T14:19:30Z","abstract_excerpt":"Novel view synthesis for underwater scene reconstruction presents unique challenges due to complex light-media interactions. Optical scattering and absorption in water body bring inhomogeneous medium attenuation interference that disrupts conventional volume rendering assumptions of uniform propagation medium. While 3D Gaussian Splatting (3DGS) offers real-time rendering capabilities, it struggles with underwater inhomogeneous environments where scattering media introduces artifacts and inconsistent appearance. In this study, we propose a physics-based framework that disentangles object appear"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.21238","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T02:44:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0XMzCIB/OjcCrco3louJFidhYaS4lWLXbN+wdTEgfB22B8xfjlNVBn+D4WBhb5BHaupGw2YO45I+6vccueq6Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T09:05:11.043160Z"},"content_sha256":"fe27170a31b7b223728be18427256bed152e4661f281eeeab14202351bad5b1d","schema_version":"1.0","event_id":"sha256:fe27170a31b7b223728be18427256bed152e4661f281eeeab14202351bad5b1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FQMREKURYNHIHMDSCUL2RAAMIV/bundle.json","state_url":"https://pith.science/pith/FQMREKURYNHIHMDSCUL2RAAMIV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FQMREKURYNHIHMDSCUL2RAAMIV/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":"2026-05-21T09:05:11Z","links":{"resolver":"https://pith.science/pith/FQMREKURYNHIHMDSCUL2RAAMIV","bundle":"https://pith.science/pith/FQMREKURYNHIHMDSCUL2RAAMIV/bundle.json","state":"https://pith.science/pith/FQMREKURYNHIHMDSCUL2RAAMIV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FQMREKURYNHIHMDSCUL2RAAMIV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:FQMREKURYNHIHMDSCUL2RAAMIV","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":"bd6229911227c318aaa0fa34a5b40ef1a8d5b218e45007da8e41bd7997c54039","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-27T14:19:30Z","title_canon_sha256":"ba7685225a6cdb16eb4b54128db1e55b798b5a91b742d9eeb6316ad55515847b"},"schema_version":"1.0","source":{"id":"2505.21238","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.21238","created_at":"2026-05-18T02:44:39Z"},{"alias_kind":"arxiv_version","alias_value":"2505.21238v3","created_at":"2026-05-18T02:44:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.21238","created_at":"2026-05-18T02:44:39Z"},{"alias_kind":"pith_short_12","alias_value":"FQMREKURYNHI","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"FQMREKURYNHIHMDS","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"FQMREKUR","created_at":"2026-05-18T12:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:fe27170a31b7b223728be18427256bed152e4661f281eeeab14202351bad5b1d","target":"graph","created_at":"2026-05-18T02:44:39Z","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"},"paper":{"abstract_excerpt":"Novel view synthesis for underwater scene reconstruction presents unique challenges due to complex light-media interactions. Optical scattering and absorption in water body bring inhomogeneous medium attenuation interference that disrupts conventional volume rendering assumptions of uniform propagation medium. While 3D Gaussian Splatting (3DGS) offers real-time rendering capabilities, it struggles with underwater inhomogeneous environments where scattering media introduces artifacts and inconsistent appearance. In this study, we propose a physics-based framework that disentangles object appear","authors_text":"Chongyi Li, Chunle Guo, Jieyu Yuan, Ruixing Wang, Xiongxin Tang, Yuanlin Zhang, Yujun Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-27T14:19:30Z","title":"3D-UIR: 3D Gaussian for Underwater 3D Scene Reconstruction via Physics Based Appearance-Medium Decoupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.21238","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:b9fe53687da44709119ad84ca73ba15c080222455043e0e0d0fc1440c53ffe7e","target":"record","created_at":"2026-05-18T02:44:39Z","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":"bd6229911227c318aaa0fa34a5b40ef1a8d5b218e45007da8e41bd7997c54039","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-05-27T14:19:30Z","title_canon_sha256":"ba7685225a6cdb16eb4b54128db1e55b798b5a91b742d9eeb6316ad55515847b"},"schema_version":"1.0","source":{"id":"2505.21238","kind":"arxiv","version":3}},"canonical_sha256":"2c19122a91c34e83b0721517a8800c4571c41c2424b3e36f85057106c7c7857a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c19122a91c34e83b0721517a8800c4571c41c2424b3e36f85057106c7c7857a","first_computed_at":"2026-05-18T02:44:39.070103Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:39.070103Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"52iMOrow9cGxSNTx4lzIq0ZvvINhM60dGH1ZZpSHlvlzr75MMICnRZZfT39M/MApFo9TT8itd6UkOcA0fZ/BBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:39.070760Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.21238","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9fe53687da44709119ad84ca73ba15c080222455043e0e0d0fc1440c53ffe7e","sha256:fe27170a31b7b223728be18427256bed152e4661f281eeeab14202351bad5b1d"],"state_sha256":"0f80857937fe58764c3cdfd1a889315d78f2fa92d2255980d59e4ee5eb131741"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QlVe9CvqZtm8FpKzz47jGQNdIn9y1S+DZcv3yzgrQaltIOfYgbOSkeiLsulqc8E6JGHDHEGiZBftrcsYA+6FAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T09:05:11.045153Z","bundle_sha256":"5a3f352f647474d2e4ebf5181fd8a4935d838b522023e756f9900eabea0d4f20"}}