{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TTMR5SWM2LBDDYW57F4ITQTIED","short_pith_number":"pith:TTMR5SWM","canonical_record":{"source":{"id":"1905.03897","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-10T00:12:20Z","cross_cats_sorted":[],"title_canon_sha256":"bbc999bb0555f5161e1fbaf4be7810ab10875e389ea7fe9ceffb8d7f338e28f0","abstract_canon_sha256":"77fe946490ae8eabc21a3a56c9fff58987aa9e4d80f7f0a685ee8bf40f3f0c88"},"schema_version":"1.0"},"canonical_sha256":"9cd91ecaccd2c231e2ddf97889c26820cab24c715cdfcb5865fbcd16ff9daf33","source":{"kind":"arxiv","id":"1905.03897","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.03897","created_at":"2026-05-17T23:46:35Z"},{"alias_kind":"arxiv_version","alias_value":"1905.03897v1","created_at":"2026-05-17T23:46:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.03897","created_at":"2026-05-17T23:46:35Z"},{"alias_kind":"pith_short_12","alias_value":"TTMR5SWM2LBD","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"TTMR5SWM2LBDDYW5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"TTMR5SWM","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TTMR5SWM2LBDDYW57F4ITQTIED","target":"record","payload":{"canonical_record":{"source":{"id":"1905.03897","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-10T00:12:20Z","cross_cats_sorted":[],"title_canon_sha256":"bbc999bb0555f5161e1fbaf4be7810ab10875e389ea7fe9ceffb8d7f338e28f0","abstract_canon_sha256":"77fe946490ae8eabc21a3a56c9fff58987aa9e4d80f7f0a685ee8bf40f3f0c88"},"schema_version":"1.0"},"canonical_sha256":"9cd91ecaccd2c231e2ddf97889c26820cab24c715cdfcb5865fbcd16ff9daf33","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:35.246140Z","signature_b64":"14XCDMXEf5I4BeEI8x/aKEh6CbTiuCiKBrdQ8etB5MfNQHTwzGKCSafpQyuWakxEQvIx2fRYRxwMTR7VJwekAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9cd91ecaccd2c231e2ddf97889c26820cab24c715cdfcb5865fbcd16ff9daf33","last_reissued_at":"2026-05-17T23:46:35.245573Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:35.245573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.03897","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":"2026-05-17T23:46:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XbCYOLfhYm+6eqYCIDgxl4YvUpiOSUab3M5/Z34uGB8bZ9Z5JjJnzJwZFLpNVa5Bo6zvV7m+XF0gwAY298FzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T11:37:41.581859Z"},"content_sha256":"252012fc5ea5690196b860687305aa1dd8de27a7c40176d797ab7c7647c8af48","schema_version":"1.0","event_id":"sha256:252012fc5ea5690196b860687305aa1dd8de27a7c40176d797ab7c7647c8af48"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TTMR5SWM2LBDDYW57F4ITQTIED","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep Sky Modeling for Single Image Outdoor Lighting Estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Akshaya Athawale, Jean-Fran\\c{c}ois Lalonde, Yannick Hold-Geoffroy","submitted_at":"2019-05-10T00:12:20Z","abstract_excerpt":"We propose a data-driven learned sky model, which we use for outdoor lighting estimation from a single image. As no large-scale dataset of images and their corresponding ground truth illumination is readily available, we use complementary datasets to train our approach, combining the vast diversity of illumination conditions of SUN360 with the radiometrically calibrated and physically accurate Laval HDR sky database. Our key contribution is to provide a holistic view of both lighting modeling and estimation, solving both problems end-to-end. From a test image, our method can directly estimate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.03897","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":"2026-05-17T23:46:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x9Huf6pvySInQEWUiCbFqMJlseMQ+aW1zLIdUwP2lQ8zVFh/p9GkJNoSvQVw3cot9a9YPOQm5ZVMlMwWzmmdBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T11:37:41.582204Z"},"content_sha256":"ae9af7cd18aca1e6eb9318548da2e39bc6805a2328553b25effd8baecff1486b","schema_version":"1.0","event_id":"sha256:ae9af7cd18aca1e6eb9318548da2e39bc6805a2328553b25effd8baecff1486b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TTMR5SWM2LBDDYW57F4ITQTIED/bundle.json","state_url":"https://pith.science/pith/TTMR5SWM2LBDDYW57F4ITQTIED/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TTMR5SWM2LBDDYW57F4ITQTIED/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":"2026-06-05T11:37:41Z","links":{"resolver":"https://pith.science/pith/TTMR5SWM2LBDDYW57F4ITQTIED","bundle":"https://pith.science/pith/TTMR5SWM2LBDDYW57F4ITQTIED/bundle.json","state":"https://pith.science/pith/TTMR5SWM2LBDDYW57F4ITQTIED/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TTMR5SWM2LBDDYW57F4ITQTIED/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TTMR5SWM2LBDDYW57F4ITQTIED","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":"77fe946490ae8eabc21a3a56c9fff58987aa9e4d80f7f0a685ee8bf40f3f0c88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-10T00:12:20Z","title_canon_sha256":"bbc999bb0555f5161e1fbaf4be7810ab10875e389ea7fe9ceffb8d7f338e28f0"},"schema_version":"1.0","source":{"id":"1905.03897","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.03897","created_at":"2026-05-17T23:46:35Z"},{"alias_kind":"arxiv_version","alias_value":"1905.03897v1","created_at":"2026-05-17T23:46:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.03897","created_at":"2026-05-17T23:46:35Z"},{"alias_kind":"pith_short_12","alias_value":"TTMR5SWM2LBD","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"TTMR5SWM2LBDDYW5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"TTMR5SWM","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:ae9af7cd18aca1e6eb9318548da2e39bc6805a2328553b25effd8baecff1486b","target":"graph","created_at":"2026-05-17T23:46:35Z","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":"We propose a data-driven learned sky model, which we use for outdoor lighting estimation from a single image. As no large-scale dataset of images and their corresponding ground truth illumination is readily available, we use complementary datasets to train our approach, combining the vast diversity of illumination conditions of SUN360 with the radiometrically calibrated and physically accurate Laval HDR sky database. Our key contribution is to provide a holistic view of both lighting modeling and estimation, solving both problems end-to-end. From a test image, our method can directly estimate ","authors_text":"Akshaya Athawale, Jean-Fran\\c{c}ois Lalonde, Yannick Hold-Geoffroy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-10T00:12:20Z","title":"Deep Sky Modeling for Single Image Outdoor Lighting Estimation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.03897","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":"sha256:252012fc5ea5690196b860687305aa1dd8de27a7c40176d797ab7c7647c8af48","target":"record","created_at":"2026-05-17T23:46:35Z","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":"77fe946490ae8eabc21a3a56c9fff58987aa9e4d80f7f0a685ee8bf40f3f0c88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-10T00:12:20Z","title_canon_sha256":"bbc999bb0555f5161e1fbaf4be7810ab10875e389ea7fe9ceffb8d7f338e28f0"},"schema_version":"1.0","source":{"id":"1905.03897","kind":"arxiv","version":1}},"canonical_sha256":"9cd91ecaccd2c231e2ddf97889c26820cab24c715cdfcb5865fbcd16ff9daf33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9cd91ecaccd2c231e2ddf97889c26820cab24c715cdfcb5865fbcd16ff9daf33","first_computed_at":"2026-05-17T23:46:35.245573Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:35.245573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"14XCDMXEf5I4BeEI8x/aKEh6CbTiuCiKBrdQ8etB5MfNQHTwzGKCSafpQyuWakxEQvIx2fRYRxwMTR7VJwekAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:35.246140Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.03897","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:252012fc5ea5690196b860687305aa1dd8de27a7c40176d797ab7c7647c8af48","sha256:ae9af7cd18aca1e6eb9318548da2e39bc6805a2328553b25effd8baecff1486b"],"state_sha256":"f8d19a3fa73223d379fe223e2d3bbc6f05bb5d820731ef694e8b9055fd0731a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VKwiQ/GD7vLF5QLFlDrgw6NAzTAgZz0d0MS7u6FaCycFxHP++j3YlgM2mGOrIJCLjkl1roDJxY3aRZh5Ub9KBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T11:37:41.584349Z","bundle_sha256":"8cf1437369889d2dbf03936a9c3bd85c262cde1b9b37cd39ba71eadb2e276bd0"}}