{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XNCA6DWSDVOKWEJKFAULJREXZJ","short_pith_number":"pith:XNCA6DWS","canonical_record":{"source":{"id":"1804.05091","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-13T19:01:39Z","cross_cats_sorted":[],"title_canon_sha256":"598f008ee1ef96c1f88fc8fe06e64f2e3c8097701c64b5b00556f2fa5d1768e7","abstract_canon_sha256":"e7b794915f936d38aaa6a835957f868c3c0fd92fe2a9113d6c1cb4035a1351ec"},"schema_version":"1.0"},"canonical_sha256":"bb440f0ed21d5cab112a2828b4c497ca60522fe936ea488c85f252824b8a8977","source":{"kind":"arxiv","id":"1804.05091","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05091","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05091v1","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05091","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"pith_short_12","alias_value":"XNCA6DWSDVOK","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XNCA6DWSDVOKWEJK","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XNCA6DWS","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XNCA6DWSDVOKWEJKFAULJREXZJ","target":"record","payload":{"canonical_record":{"source":{"id":"1804.05091","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-13T19:01:39Z","cross_cats_sorted":[],"title_canon_sha256":"598f008ee1ef96c1f88fc8fe06e64f2e3c8097701c64b5b00556f2fa5d1768e7","abstract_canon_sha256":"e7b794915f936d38aaa6a835957f868c3c0fd92fe2a9113d6c1cb4035a1351ec"},"schema_version":"1.0"},"canonical_sha256":"bb440f0ed21d5cab112a2828b4c497ca60522fe936ea488c85f252824b8a8977","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:30.585189Z","signature_b64":"/vzU2WAJvNvLCc3ClJVwQ60KQS6ve67N06v2Vbke85SA64xOXkqJiWsOGMKpVpQNMLtvKtA+pnzXCgXYTwIGBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb440f0ed21d5cab112a2828b4c497ca60522fe936ea488c85f252824b8a8977","last_reissued_at":"2026-05-18T00:18:30.584833Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:30.584833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.05091","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":"2026-05-18T00:18:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3rddh2VLP6KD2L2f7jPJ/kAaqjPzwI4kxB+T0SKAmSxd7NySbTWs+oAFu2bpoVm2eAYsVo/b5/l16cXO9nq4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:37:36.973705Z"},"content_sha256":"d9f037417252821f9e119d54c69cd2be8e2177895fe58ba5b536c3f1fcc7cb5c","schema_version":"1.0","event_id":"sha256:d9f037417252821f9e119d54c69cd2be8e2177895fe58ba5b536c3f1fcc7cb5c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XNCA6DWSDVOKWEJKFAULJREXZJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"I-HAZE: a dehazing benchmark with real hazy and haze-free indoor images","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Christophe De Vleeschouwer, Codruta O. Ancuti, Cosmin Ancuti, Radu Timofte","submitted_at":"2018-04-13T19:01:39Z","abstract_excerpt":"Image dehazing has become an important computational imaging topic in the recent years. However, due to the lack of ground truth images, the comparison of dehazing methods is not straightforward, nor objective. To overcome this issue we introduce a new dataset -named I-HAZE- that contains 35 image pairs of hazy and corresponding haze-free (ground-truth) indoor images. Different from most of the existing dehazing databases, hazy images have been generated using real haze produced by a professional haze machine. For easy color calibration and improved assessment of dehazing algorithms, each scen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05091","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":""},"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":"2026-05-18T00:18:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1JKlF15OEKA0auuKVP9BsxchQzzRMCgpxrctG+mbE0QMFwqITBcZRJVyt8OHSupzGYaCHnsCOcLE6CydLiZlDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:37:36.974241Z"},"content_sha256":"2b319396be36605fdcf4572df895c3a770054b670c60875c86f0ca1e64728cfd","schema_version":"1.0","event_id":"sha256:2b319396be36605fdcf4572df895c3a770054b670c60875c86f0ca1e64728cfd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XNCA6DWSDVOKWEJKFAULJREXZJ/bundle.json","state_url":"https://pith.science/pith/XNCA6DWSDVOKWEJKFAULJREXZJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XNCA6DWSDVOKWEJKFAULJREXZJ/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":"2026-06-04T06:37:36Z","links":{"resolver":"https://pith.science/pith/XNCA6DWSDVOKWEJKFAULJREXZJ","bundle":"https://pith.science/pith/XNCA6DWSDVOKWEJKFAULJREXZJ/bundle.json","state":"https://pith.science/pith/XNCA6DWSDVOKWEJKFAULJREXZJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XNCA6DWSDVOKWEJKFAULJREXZJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XNCA6DWSDVOKWEJKFAULJREXZJ","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":"e7b794915f936d38aaa6a835957f868c3c0fd92fe2a9113d6c1cb4035a1351ec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-13T19:01:39Z","title_canon_sha256":"598f008ee1ef96c1f88fc8fe06e64f2e3c8097701c64b5b00556f2fa5d1768e7"},"schema_version":"1.0","source":{"id":"1804.05091","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05091","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05091v1","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05091","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"pith_short_12","alias_value":"XNCA6DWSDVOK","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XNCA6DWSDVOKWEJK","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XNCA6DWS","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:2b319396be36605fdcf4572df895c3a770054b670c60875c86f0ca1e64728cfd","target":"graph","created_at":"2026-05-18T00:18:30Z","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":"Image dehazing has become an important computational imaging topic in the recent years. However, due to the lack of ground truth images, the comparison of dehazing methods is not straightforward, nor objective. To overcome this issue we introduce a new dataset -named I-HAZE- that contains 35 image pairs of hazy and corresponding haze-free (ground-truth) indoor images. Different from most of the existing dehazing databases, hazy images have been generated using real haze produced by a professional haze machine. For easy color calibration and improved assessment of dehazing algorithms, each scen","authors_text":"Christophe De Vleeschouwer, Codruta O. Ancuti, Cosmin Ancuti, Radu Timofte","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-13T19:01:39Z","title":"I-HAZE: a dehazing benchmark with real hazy and haze-free indoor images"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05091","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:d9f037417252821f9e119d54c69cd2be8e2177895fe58ba5b536c3f1fcc7cb5c","target":"record","created_at":"2026-05-18T00:18:30Z","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":"e7b794915f936d38aaa6a835957f868c3c0fd92fe2a9113d6c1cb4035a1351ec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-04-13T19:01:39Z","title_canon_sha256":"598f008ee1ef96c1f88fc8fe06e64f2e3c8097701c64b5b00556f2fa5d1768e7"},"schema_version":"1.0","source":{"id":"1804.05091","kind":"arxiv","version":1}},"canonical_sha256":"bb440f0ed21d5cab112a2828b4c497ca60522fe936ea488c85f252824b8a8977","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb440f0ed21d5cab112a2828b4c497ca60522fe936ea488c85f252824b8a8977","first_computed_at":"2026-05-18T00:18:30.584833Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:30.584833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/vzU2WAJvNvLCc3ClJVwQ60KQS6ve67N06v2Vbke85SA64xOXkqJiWsOGMKpVpQNMLtvKtA+pnzXCgXYTwIGBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:30.585189Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.05091","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9f037417252821f9e119d54c69cd2be8e2177895fe58ba5b536c3f1fcc7cb5c","sha256:2b319396be36605fdcf4572df895c3a770054b670c60875c86f0ca1e64728cfd"],"state_sha256":"0601594a60b3d1516efe9c1c5e10646ee4e580a7a97feaba06cfd0e5b04eae82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YdLfoqDe3dXjrxnUwC3iP9SXEaHS+fWYBqJB4d7SLPLKfOX8GukVanEUEp73ZXmem2nyoSCGeRfjUnXRqSYbBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T06:37:36.976436Z","bundle_sha256":"a0ef4c4fff5154d42a6e1194f96d57c740e50d3c20cd35a695faa21f7e08cf54"}}