{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:32MWNZF3A6NOOYPXCC7N2Y4OP3","short_pith_number":"pith:32MWNZF3","canonical_record":{"source":{"id":"1905.00824","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2019-05-02T15:56:15Z","cross_cats_sorted":["cs.CV","eess.IV"],"title_canon_sha256":"fb9db9fc19b8c625e20cbe6d00d134e6fb928a901891a364c29049fa6389da7f","abstract_canon_sha256":"39e92956df219efa4c44dab188833a0e6851c1ee3ac1bdd58637a71f532dd77f"},"schema_version":"1.0"},"canonical_sha256":"de9966e4bb079ae761f710bedd638e7ed1e97bfaf1cbad4713a77e4d3d695d5e","source":{"kind":"arxiv","id":"1905.00824","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00824","created_at":"2026-05-17T23:47:09Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00824v1","created_at":"2026-05-17T23:47:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00824","created_at":"2026-05-17T23:47:09Z"},{"alias_kind":"pith_short_12","alias_value":"32MWNZF3A6NO","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"32MWNZF3A6NOOYPX","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"32MWNZF3","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:32MWNZF3A6NOOYPXCC7N2Y4OP3","target":"record","payload":{"canonical_record":{"source":{"id":"1905.00824","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2019-05-02T15:56:15Z","cross_cats_sorted":["cs.CV","eess.IV"],"title_canon_sha256":"fb9db9fc19b8c625e20cbe6d00d134e6fb928a901891a364c29049fa6389da7f","abstract_canon_sha256":"39e92956df219efa4c44dab188833a0e6851c1ee3ac1bdd58637a71f532dd77f"},"schema_version":"1.0"},"canonical_sha256":"de9966e4bb079ae761f710bedd638e7ed1e97bfaf1cbad4713a77e4d3d695d5e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:09.184825Z","signature_b64":"yEtXHBeyck/t3UXYJssf8Uw5hpKZrBUzduNhHdV3XvPtPuHRXKrQJaLBQbXaAoOqO7ZmTz0/VPMuvVwEORY9Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de9966e4bb079ae761f710bedd638e7ed1e97bfaf1cbad4713a77e4d3d695d5e","last_reissued_at":"2026-05-17T23:47:09.184166Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:09.184166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.00824","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":"2026-05-17T23:47:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bT2eSb9LPRSQYfMi1OQBTRoTZ9Sbp/3eBmJpcVlmQdU5N5BOI234kw6e4ShIYEzc76cBuJXLyZOjF/40hEOUAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:07:28.789748Z"},"content_sha256":"19a7436cd7287f771803d026da1da47c5cbdaab681b60926be995191bafcc4b6","schema_version":"1.0","event_id":"sha256:19a7436cd7287f771803d026da1da47c5cbdaab681b60926be995191bafcc4b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:32MWNZF3A6NOOYPXCC7N2Y4OP3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single Image Portrait Relighting","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","eess.IV"],"primary_cat":"cs.GR","authors_text":"Christoph Rhemann, Graham Fyffe, Jay Busch, Jonathan T. Barron, Paul Debevec, Ravi Ramamoorthi, Tiancheng Sun, Xueming Yu, Yun-Ta Tsai, Zexiang Xu","submitted_at":"2019-05-02T15:56:15Z","abstract_excerpt":"Lighting plays a central role in conveying the essence and depth of the subject in a portrait photograph. Professional photographers will carefully control the lighting in their studio to manipulate the appearance of their subject, while consumer photographers are usually constrained to the illumination of their environment. Though prior works have explored techniques for relighting an image, their utility is usually limited due to requirements of specialized hardware, multiple images of the subject under controlled or known illuminations, or accurate models of geometry and reflectance. To thi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00824","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":"2026-05-17T23:47:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UJ79sEX7Z+eAlXxSMmYbVJUYizZ/RmCDK1x+fRXzCgqayunKMEZG0bVx6uoKr4BcjEIvWbu7tObazpmZqhBPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:07:28.790478Z"},"content_sha256":"a57aa1cd72df26bf151be15e9e6370cd525bd3680b87185ce9b95eed45f9b2b7","schema_version":"1.0","event_id":"sha256:a57aa1cd72df26bf151be15e9e6370cd525bd3680b87185ce9b95eed45f9b2b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3/bundle.json","state_url":"https://pith.science/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3/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":"2026-05-28T21:07:28Z","links":{"resolver":"https://pith.science/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3","bundle":"https://pith.science/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3/bundle.json","state":"https://pith.science/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/32MWNZF3A6NOOYPXCC7N2Y4OP3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:32MWNZF3A6NOOYPXCC7N2Y4OP3","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":"39e92956df219efa4c44dab188833a0e6851c1ee3ac1bdd58637a71f532dd77f","cross_cats_sorted":["cs.CV","eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2019-05-02T15:56:15Z","title_canon_sha256":"fb9db9fc19b8c625e20cbe6d00d134e6fb928a901891a364c29049fa6389da7f"},"schema_version":"1.0","source":{"id":"1905.00824","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00824","created_at":"2026-05-17T23:47:09Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00824v1","created_at":"2026-05-17T23:47:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00824","created_at":"2026-05-17T23:47:09Z"},{"alias_kind":"pith_short_12","alias_value":"32MWNZF3A6NO","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"32MWNZF3A6NOOYPX","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"32MWNZF3","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:a57aa1cd72df26bf151be15e9e6370cd525bd3680b87185ce9b95eed45f9b2b7","target":"graph","created_at":"2026-05-17T23:47:09Z","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":"Lighting plays a central role in conveying the essence and depth of the subject in a portrait photograph. Professional photographers will carefully control the lighting in their studio to manipulate the appearance of their subject, while consumer photographers are usually constrained to the illumination of their environment. Though prior works have explored techniques for relighting an image, their utility is usually limited due to requirements of specialized hardware, multiple images of the subject under controlled or known illuminations, or accurate models of geometry and reflectance. To thi","authors_text":"Christoph Rhemann, Graham Fyffe, Jay Busch, Jonathan T. Barron, Paul Debevec, Ravi Ramamoorthi, Tiancheng Sun, Xueming Yu, Yun-Ta Tsai, Zexiang Xu","cross_cats":["cs.CV","eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2019-05-02T15:56:15Z","title":"Single Image Portrait Relighting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00824","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":"sha256:19a7436cd7287f771803d026da1da47c5cbdaab681b60926be995191bafcc4b6","target":"record","created_at":"2026-05-17T23:47:09Z","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":"39e92956df219efa4c44dab188833a0e6851c1ee3ac1bdd58637a71f532dd77f","cross_cats_sorted":["cs.CV","eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2019-05-02T15:56:15Z","title_canon_sha256":"fb9db9fc19b8c625e20cbe6d00d134e6fb928a901891a364c29049fa6389da7f"},"schema_version":"1.0","source":{"id":"1905.00824","kind":"arxiv","version":1}},"canonical_sha256":"de9966e4bb079ae761f710bedd638e7ed1e97bfaf1cbad4713a77e4d3d695d5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de9966e4bb079ae761f710bedd638e7ed1e97bfaf1cbad4713a77e4d3d695d5e","first_computed_at":"2026-05-17T23:47:09.184166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:09.184166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yEtXHBeyck/t3UXYJssf8Uw5hpKZrBUzduNhHdV3XvPtPuHRXKrQJaLBQbXaAoOqO7ZmTz0/VPMuvVwEORY9Dg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:09.184825Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.00824","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19a7436cd7287f771803d026da1da47c5cbdaab681b60926be995191bafcc4b6","sha256:a57aa1cd72df26bf151be15e9e6370cd525bd3680b87185ce9b95eed45f9b2b7"],"state_sha256":"103512838115a77ec545899944ed517ac8b1c6e8d6a604725cfe508399c34a45"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uuYF4gUYYtODDfC5000hnbTkj8mY81CW3/axzhn9wmlSVg/3zEvghYeYgNaPOfv/eX3wM9MWss+10CJhXAWUBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:07:28.793635Z","bundle_sha256":"9f8008a661a21342ef1c95301c6dd7730d066b987aca680d2270ffda13241779"}}