{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:HWMEAANFE6B2QUO4NWUAMDXFI7","short_pith_number":"pith:HWMEAANF","canonical_record":{"source":{"id":"1603.01864","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-03-06T19:54:18Z","cross_cats_sorted":[],"title_canon_sha256":"24af752ae0ce434d70ad8e0e0f9fe3381ef9dd8a6fadcbf4a39c3da15f6d89d0","abstract_canon_sha256":"022c1c4570c2282627630f56566e5b8edd5c6840cd870a38282bc509afa47b91"},"schema_version":"1.0"},"canonical_sha256":"3d984001a52783a851dc6da8060ee547ca03c276f975200501498947b4df809b","source":{"kind":"arxiv","id":"1603.01864","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.01864","created_at":"2026-05-17T23:51:34Z"},{"alias_kind":"arxiv_version","alias_value":"1603.01864v2","created_at":"2026-05-17T23:51:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.01864","created_at":"2026-05-17T23:51:34Z"},{"alias_kind":"pith_short_12","alias_value":"HWMEAANFE6B2","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"HWMEAANFE6B2QUO4","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"HWMEAANF","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:HWMEAANFE6B2QUO4NWUAMDXFI7","target":"record","payload":{"canonical_record":{"source":{"id":"1603.01864","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-03-06T19:54:18Z","cross_cats_sorted":[],"title_canon_sha256":"24af752ae0ce434d70ad8e0e0f9fe3381ef9dd8a6fadcbf4a39c3da15f6d89d0","abstract_canon_sha256":"022c1c4570c2282627630f56566e5b8edd5c6840cd870a38282bc509afa47b91"},"schema_version":"1.0"},"canonical_sha256":"3d984001a52783a851dc6da8060ee547ca03c276f975200501498947b4df809b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:34.963268Z","signature_b64":"z4eLF5aht5bX2fQ0fylqntNC/Hdn2H6sIZ63KNL/pfuHWk2uI+Y0kcfjHjTVrRWYGlEJap93Yiciz2yv4c2GDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3d984001a52783a851dc6da8060ee547ca03c276f975200501498947b4df809b","last_reissued_at":"2026-05-17T23:51:34.962652Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:34.962652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.01864","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:51:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6kW75Rf8r5uu3CyCOUsYTLA3IvvkmkSOsG5Dr/JfOOaD2o44GQr9txMPAfE/M/n6LlOOkCyD64PtKQeN+xV+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:11:22.565375Z"},"content_sha256":"c707ebaac106179396f9e2fb79634b0aec4550a244662517a251ab9810539d63","schema_version":"1.0","event_id":"sha256:c707ebaac106179396f9e2fb79634b0aec4550a244662517a251ab9810539d63"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:HWMEAANFE6B2QUO4NWUAMDXFI7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single Image Restoration for Participating Media Based on Prior Fusion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Amanda C. Duarte, Felipe Codevilla, Joel D. O. Gaya, Paulo L. Drews-Jr, Silvia S. Botelho","submitted_at":"2016-03-06T19:54:18Z","abstract_excerpt":"This paper describes a method to restore degraded images captured in a participating media -- fog, turbid water, sand storm, etc. Differently from the related work that only deal with a medium, we obtain generality by using an image formation model and a fusion of new image priors. The model considers the image color variation produced by the medium. The proposed restoration method is based on the fusion of these priors and supported by statistics collected on images acquired in both non-participating and participating media. The key of the method is to fuse two complementary measures --- loca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.01864","kind":"arxiv","version":2},"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":"2026-05-17T23:51:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rucQyRnIpuWIwo1uUNYNwrRsBzqPJ6stwsYt+w7GJjXnnLZCIAbFc6RuwyyMYoir7HwZixNP0XdBw7slu20/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:11:22.565762Z"},"content_sha256":"548019ec5ecc2610fd7aaf8cafebb116ecaa11bc4b80133ce7654f1b5b83d922","schema_version":"1.0","event_id":"sha256:548019ec5ecc2610fd7aaf8cafebb116ecaa11bc4b80133ce7654f1b5b83d922"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HWMEAANFE6B2QUO4NWUAMDXFI7/bundle.json","state_url":"https://pith.science/pith/HWMEAANFE6B2QUO4NWUAMDXFI7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HWMEAANFE6B2QUO4NWUAMDXFI7/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":"2026-06-05T19:11:22Z","links":{"resolver":"https://pith.science/pith/HWMEAANFE6B2QUO4NWUAMDXFI7","bundle":"https://pith.science/pith/HWMEAANFE6B2QUO4NWUAMDXFI7/bundle.json","state":"https://pith.science/pith/HWMEAANFE6B2QUO4NWUAMDXFI7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HWMEAANFE6B2QUO4NWUAMDXFI7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:HWMEAANFE6B2QUO4NWUAMDXFI7","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":"022c1c4570c2282627630f56566e5b8edd5c6840cd870a38282bc509afa47b91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-03-06T19:54:18Z","title_canon_sha256":"24af752ae0ce434d70ad8e0e0f9fe3381ef9dd8a6fadcbf4a39c3da15f6d89d0"},"schema_version":"1.0","source":{"id":"1603.01864","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.01864","created_at":"2026-05-17T23:51:34Z"},{"alias_kind":"arxiv_version","alias_value":"1603.01864v2","created_at":"2026-05-17T23:51:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.01864","created_at":"2026-05-17T23:51:34Z"},{"alias_kind":"pith_short_12","alias_value":"HWMEAANFE6B2","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"HWMEAANFE6B2QUO4","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"HWMEAANF","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:548019ec5ecc2610fd7aaf8cafebb116ecaa11bc4b80133ce7654f1b5b83d922","target":"graph","created_at":"2026-05-17T23:51:34Z","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":"This paper describes a method to restore degraded images captured in a participating media -- fog, turbid water, sand storm, etc. Differently from the related work that only deal with a medium, we obtain generality by using an image formation model and a fusion of new image priors. The model considers the image color variation produced by the medium. The proposed restoration method is based on the fusion of these priors and supported by statistics collected on images acquired in both non-participating and participating media. The key of the method is to fuse two complementary measures --- loca","authors_text":"Amanda C. Duarte, Felipe Codevilla, Joel D. O. Gaya, Paulo L. Drews-Jr, Silvia S. Botelho","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-03-06T19:54:18Z","title":"Single Image Restoration for Participating Media Based on Prior Fusion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.01864","kind":"arxiv","version":2},"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:c707ebaac106179396f9e2fb79634b0aec4550a244662517a251ab9810539d63","target":"record","created_at":"2026-05-17T23:51:34Z","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":"022c1c4570c2282627630f56566e5b8edd5c6840cd870a38282bc509afa47b91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2016-03-06T19:54:18Z","title_canon_sha256":"24af752ae0ce434d70ad8e0e0f9fe3381ef9dd8a6fadcbf4a39c3da15f6d89d0"},"schema_version":"1.0","source":{"id":"1603.01864","kind":"arxiv","version":2}},"canonical_sha256":"3d984001a52783a851dc6da8060ee547ca03c276f975200501498947b4df809b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3d984001a52783a851dc6da8060ee547ca03c276f975200501498947b4df809b","first_computed_at":"2026-05-17T23:51:34.962652Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:34.962652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z4eLF5aht5bX2fQ0fylqntNC/Hdn2H6sIZ63KNL/pfuHWk2uI+Y0kcfjHjTVrRWYGlEJap93Yiciz2yv4c2GDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:34.963268Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.01864","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c707ebaac106179396f9e2fb79634b0aec4550a244662517a251ab9810539d63","sha256:548019ec5ecc2610fd7aaf8cafebb116ecaa11bc4b80133ce7654f1b5b83d922"],"state_sha256":"28613c630b7ea5c852d5c2b710fcbdc6fbae9ac482d7166f75343164f1fe5a83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RpvluVmpC+te4ymaZ6XeOGi4nrDI2UZnnciQZjAHUjSGCOO1E48nFOo5PA617G0h2H1jZbOge5RDLqW5fORPAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T19:11:22.567970Z","bundle_sha256":"0d869e3f6d2b4a1cdca3a662e022e3f293f200f6fd1b7136e1b6f433a2511b28"}}