{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:4ZG5N2N66VRFZ6DPZ2Q2LB5E6U","short_pith_number":"pith:4ZG5N2N6","canonical_record":{"source":{"id":"2009.12798","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-09-27T09:16:43Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"5a7da16fe9fd3883028825401ceae1308432fe88df1daecbf087a4402da37987","abstract_canon_sha256":"5fe15bb2e38e0e32edfc5de577cba00dc7e92be966de97446f3d6ac71bc2be5a"},"schema_version":"1.0"},"canonical_sha256":"e64dd6e9bef5625cf86fcea1a587a4f50815ad92ae8ef1345bcf898c1a7619e8","source":{"kind":"arxiv","id":"2009.12798","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.12798","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"arxiv_version","alias_value":"2009.12798v1","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.12798","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"pith_short_12","alias_value":"4ZG5N2N66VRF","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"pith_short_16","alias_value":"4ZG5N2N66VRFZ6DP","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"pith_short_8","alias_value":"4ZG5N2N6","created_at":"2026-07-05T01:38:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:4ZG5N2N66VRFZ6DPZ2Q2LB5E6U","target":"record","payload":{"canonical_record":{"source":{"id":"2009.12798","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-09-27T09:16:43Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"5a7da16fe9fd3883028825401ceae1308432fe88df1daecbf087a4402da37987","abstract_canon_sha256":"5fe15bb2e38e0e32edfc5de577cba00dc7e92be966de97446f3d6ac71bc2be5a"},"schema_version":"1.0"},"canonical_sha256":"e64dd6e9bef5625cf86fcea1a587a4f50815ad92ae8ef1345bcf898c1a7619e8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:38:23.428550Z","signature_b64":"TRuUBYp733z7Ql7OrftgGXSQJvogJ8AlDndeBCGkhRZb0jAG2V+UIsHHSQa3t7OyC2lLn/wZQClwPyNcO7QNDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e64dd6e9bef5625cf86fcea1a587a4f50815ad92ae8ef1345bcf898c1a7619e8","last_reissued_at":"2026-07-05T01:38:23.428116Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:38:23.428116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.12798","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":"2026-07-05T01:38:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"95k9tsiMMCgkZFyIElXuQq2CMY2L3aWXj8TMTypqh5EpGyh7NMkxy4ILF4fkCCsPQexUuHuaCM9/a3ZWBgq7BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:58:34.300599Z"},"content_sha256":"95ab68fef1a602e3f2c9d305ef55f106da572d9933565ad5c9e2173951686c3f","schema_version":"1.0","event_id":"sha256:95ab68fef1a602e3f2c9d305ef55f106da572d9933565ad5c9e2173951686c3f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:4ZG5N2N66VRFZ6DPZ2Q2LB5E6U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AIM 2020: Scene Relighting and Illumination Estimation Challenge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Akashdeep Jassal, A. N. Rajagopalan, Chenghua Li, Chu-Tak Li, Cong Leng, Densen Puthussery, Hengxing Cai, Hrishikesh P S, Jian Cheng, Jiji C V, Kele Xu, Kuldeep Purohit, Liping Dong, Li-Wen Wang, Mahmoud Afifi, Maitreya Suin, Majed El Helou, Melvin Kuriakose, Michael S. Brown, M. Parisa Beham, Nisarg A. Shah, Qing Wang, Radu Timofte, R. Suganya, Ruofan Zhou, Sabari Nathan, Sabine S\\\"usstrunk, Shanshan Zhao, Sourya Dipta Das, Tongtong Zhao, Xin Huang, Yaning Li, Yuzhong Liu, Yu Zhu, Zhi-Song Liu, Zhongyun Hu, Zhuolong Jiang","submitted_at":"2020-09-27T09:16:43Z","abstract_excerpt":"We review the AIM 2020 challenge on virtual image relighting and illumination estimation. This paper presents the novel VIDIT dataset used in the challenge and the different proposed solutions and final evaluation results over the 3 challenge tracks. The first track considered one-to-one relighting; the objective was to relight an input photo of a scene with a different color temperature and illuminant orientation (i.e., light source position). The goal of the second track was to estimate illumination settings, namely the color temperature and orientation, from a given image. Lastly, the third"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.12798","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/2009.12798/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":"2026-07-05T01:38:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8vvRDX3PT/rJx2sjzJRWjzMqf71xmJrKlbEuPH4CBB7SBiZKKQgMvHz8FMWnR9/dlNL/hiBfLSS0sPPe17p3AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:58:34.301244Z"},"content_sha256":"4c9f814ec6dbefb089f966fc7abb82f3d9fb07ac68af0ce7db33a5008eba9333","schema_version":"1.0","event_id":"sha256:4c9f814ec6dbefb089f966fc7abb82f3d9fb07ac68af0ce7db33a5008eba9333"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U/bundle.json","state_url":"https://pith.science/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U/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":"2026-07-05T15:58:34Z","links":{"resolver":"https://pith.science/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U","bundle":"https://pith.science/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U/bundle.json","state":"https://pith.science/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ZG5N2N66VRFZ6DPZ2Q2LB5E6U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:4ZG5N2N66VRFZ6DPZ2Q2LB5E6U","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":"5fe15bb2e38e0e32edfc5de577cba00dc7e92be966de97446f3d6ac71bc2be5a","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-09-27T09:16:43Z","title_canon_sha256":"5a7da16fe9fd3883028825401ceae1308432fe88df1daecbf087a4402da37987"},"schema_version":"1.0","source":{"id":"2009.12798","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.12798","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"arxiv_version","alias_value":"2009.12798v1","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.12798","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"pith_short_12","alias_value":"4ZG5N2N66VRF","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"pith_short_16","alias_value":"4ZG5N2N66VRFZ6DP","created_at":"2026-07-05T01:38:23Z"},{"alias_kind":"pith_short_8","alias_value":"4ZG5N2N6","created_at":"2026-07-05T01:38:23Z"}],"graph_snapshots":[{"event_id":"sha256:4c9f814ec6dbefb089f966fc7abb82f3d9fb07ac68af0ce7db33a5008eba9333","target":"graph","created_at":"2026-07-05T01:38:23Z","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/2009.12798/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We review the AIM 2020 challenge on virtual image relighting and illumination estimation. This paper presents the novel VIDIT dataset used in the challenge and the different proposed solutions and final evaluation results over the 3 challenge tracks. The first track considered one-to-one relighting; the objective was to relight an input photo of a scene with a different color temperature and illuminant orientation (i.e., light source position). The goal of the second track was to estimate illumination settings, namely the color temperature and orientation, from a given image. Lastly, the third","authors_text":"Akashdeep Jassal, A. N. Rajagopalan, Chenghua Li, Chu-Tak Li, Cong Leng, Densen Puthussery, Hengxing Cai, Hrishikesh P S, Jian Cheng, Jiji C V, Kele Xu, Kuldeep Purohit, Liping Dong, Li-Wen Wang, Mahmoud Afifi, Maitreya Suin, Majed El Helou, Melvin Kuriakose, Michael S. Brown, M. Parisa Beham, Nisarg A. Shah, Qing Wang, Radu Timofte, R. Suganya, Ruofan Zhou, Sabari Nathan, Sabine S\\\"usstrunk, Shanshan Zhao, Sourya Dipta Das, Tongtong Zhao, Xin Huang, Yaning Li, Yuzhong Liu, Yu Zhu, Zhi-Song Liu, Zhongyun Hu, Zhuolong Jiang","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-09-27T09:16:43Z","title":"AIM 2020: Scene Relighting and Illumination Estimation Challenge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.12798","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":"sha256:95ab68fef1a602e3f2c9d305ef55f106da572d9933565ad5c9e2173951686c3f","target":"record","created_at":"2026-07-05T01:38:23Z","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":"5fe15bb2e38e0e32edfc5de577cba00dc7e92be966de97446f3d6ac71bc2be5a","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-09-27T09:16:43Z","title_canon_sha256":"5a7da16fe9fd3883028825401ceae1308432fe88df1daecbf087a4402da37987"},"schema_version":"1.0","source":{"id":"2009.12798","kind":"arxiv","version":1}},"canonical_sha256":"e64dd6e9bef5625cf86fcea1a587a4f50815ad92ae8ef1345bcf898c1a7619e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e64dd6e9bef5625cf86fcea1a587a4f50815ad92ae8ef1345bcf898c1a7619e8","first_computed_at":"2026-07-05T01:38:23.428116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:38:23.428116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TRuUBYp733z7Ql7OrftgGXSQJvogJ8AlDndeBCGkhRZb0jAG2V+UIsHHSQa3t7OyC2lLn/wZQClwPyNcO7QNDw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:38:23.428550Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.12798","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95ab68fef1a602e3f2c9d305ef55f106da572d9933565ad5c9e2173951686c3f","sha256:4c9f814ec6dbefb089f966fc7abb82f3d9fb07ac68af0ce7db33a5008eba9333"],"state_sha256":"ba5196665dd96c1b08d2d09da5e0bc2c4f8203b6c7da25c94895b81debd0a8e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"12nFOKSC2QsnC5aUyeQmYYSWoteLdEYJ1fp/D7oDiSDFQuiXNJrDq2dpttoL/paUhOFzLZWQLp5aRzRE7QutCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T15:58:34.304186Z","bundle_sha256":"d35c4f0f9a5191661359143ce6abea21ec4dbe9879d933d168f97015797717f2"}}