{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:IZCNWNQ2D2JWU2KWBQ3766KYDJ","short_pith_number":"pith:IZCNWNQ2","canonical_record":{"source":{"id":"2203.15065","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-03-28T20:11:15Z","cross_cats_sorted":[],"title_canon_sha256":"6f83d340a134023526b09dd6336b9fdc23aa2fa314e528f850d8e7885977961d","abstract_canon_sha256":"ed59e95d42d0e066b8dddd6e08935cafb068387a4069181b660bc9d7b6298e7d"},"schema_version":"1.0"},"canonical_sha256":"4644db361a1e936a69560c37ff79581a7fc26fb8a7ce45d88846517e449d1527","source":{"kind":"arxiv","id":"2203.15065","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.15065","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"arxiv_version","alias_value":"2203.15065v2","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.15065","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"pith_short_12","alias_value":"IZCNWNQ2D2JW","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"pith_short_16","alias_value":"IZCNWNQ2D2JWU2KW","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"pith_short_8","alias_value":"IZCNWNQ2","created_at":"2026-07-05T05:11:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:IZCNWNQ2D2JWU2KWBQ3766KYDJ","target":"record","payload":{"canonical_record":{"source":{"id":"2203.15065","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-03-28T20:11:15Z","cross_cats_sorted":[],"title_canon_sha256":"6f83d340a134023526b09dd6336b9fdc23aa2fa314e528f850d8e7885977961d","abstract_canon_sha256":"ed59e95d42d0e066b8dddd6e08935cafb068387a4069181b660bc9d7b6298e7d"},"schema_version":"1.0"},"canonical_sha256":"4644db361a1e936a69560c37ff79581a7fc26fb8a7ce45d88846517e449d1527","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:11:37.974021Z","signature_b64":"wLlliAR6o+/u/zY/UntczXdHOwzeqYq3P0FsW6/kyh+QiPeZu3sK5olwRBKm/dod/nLKPwv7IAJb9PJLnt63Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4644db361a1e936a69560c37ff79581a7fc26fb8a7ce45d88846517e449d1527","last_reissued_at":"2026-07-05T05:11:37.973575Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:11:37.973575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.15065","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":"2026-07-05T05:11:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XsEcMcAfQs2B+MeaK6ATpkpn6bMwswGatW9XiPh3+kai4GAfFQAYI4k+vWoMdvK8Djy3oeX48zHsTtrSmkSXDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:56:07.643019Z"},"content_sha256":"87fe706df82685226ddc34c34564e9c7b388a80c0d2b2b5142610b65c3bd38bd","schema_version":"1.0","event_id":"sha256:87fe706df82685226ddc34c34564e9c7b388a80c0d2b2b5142610b65c3bd38bd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:IZCNWNQ2D2JWU2KWBQ3766KYDJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DeepShadow: Neural Shape from Shadow","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Asaf Karnieli, Ohad Fried, Yacov Hel-Or","submitted_at":"2022-03-28T20:11:15Z","abstract_excerpt":"This paper presents DeepShadow, a one-shot method for recovering the depth map and surface normals from photometric stereo shadow maps. Previous works that try to recover the surface normals from photometric stereo images treat cast shadows as a disturbance. We show that the self and cast shadows not only do not disturb 3D reconstruction, but can be used alone, as a strong learning signal, to recover the depth map and surface normals. We demonstrate that 3D reconstruction from shadows can even outperform shape-from-shading in certain cases. To the best of our knowledge, our method is the first"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.15065","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2203.15065/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":"2026-07-05T05:11:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ogpRWhMP5pRLQVjDxcLoESDII52V8PEDK6DjiXGcfLxQ1WM1OsC7s9JAGxRNIGjVid5M8Exjxm4MfbyOHF8bBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:56:07.643386Z"},"content_sha256":"afb4fd6df0bc812f9942dd3433c1fc1817317bd3228bccc4f39b7488f8a573b9","schema_version":"1.0","event_id":"sha256:afb4fd6df0bc812f9942dd3433c1fc1817317bd3228bccc4f39b7488f8a573b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ/bundle.json","state_url":"https://pith.science/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ/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":"2026-08-23T17:56:07Z","links":{"resolver":"https://pith.science/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ","bundle":"https://pith.science/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ/bundle.json","state":"https://pith.science/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IZCNWNQ2D2JWU2KWBQ3766KYDJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:IZCNWNQ2D2JWU2KWBQ3766KYDJ","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":"ed59e95d42d0e066b8dddd6e08935cafb068387a4069181b660bc9d7b6298e7d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-03-28T20:11:15Z","title_canon_sha256":"6f83d340a134023526b09dd6336b9fdc23aa2fa314e528f850d8e7885977961d"},"schema_version":"1.0","source":{"id":"2203.15065","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.15065","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"arxiv_version","alias_value":"2203.15065v2","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.15065","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"pith_short_12","alias_value":"IZCNWNQ2D2JW","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"pith_short_16","alias_value":"IZCNWNQ2D2JWU2KW","created_at":"2026-07-05T05:11:37Z"},{"alias_kind":"pith_short_8","alias_value":"IZCNWNQ2","created_at":"2026-07-05T05:11:37Z"}],"graph_snapshots":[{"event_id":"sha256:afb4fd6df0bc812f9942dd3433c1fc1817317bd3228bccc4f39b7488f8a573b9","target":"graph","created_at":"2026-07-05T05:11:37Z","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/2203.15065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents DeepShadow, a one-shot method for recovering the depth map and surface normals from photometric stereo shadow maps. Previous works that try to recover the surface normals from photometric stereo images treat cast shadows as a disturbance. We show that the self and cast shadows not only do not disturb 3D reconstruction, but can be used alone, as a strong learning signal, to recover the depth map and surface normals. We demonstrate that 3D reconstruction from shadows can even outperform shape-from-shading in certain cases. To the best of our knowledge, our method is the first","authors_text":"Asaf Karnieli, Ohad Fried, Yacov Hel-Or","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-03-28T20:11:15Z","title":"DeepShadow: Neural Shape from Shadow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.15065","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":"sha256:87fe706df82685226ddc34c34564e9c7b388a80c0d2b2b5142610b65c3bd38bd","target":"record","created_at":"2026-07-05T05:11:37Z","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":"ed59e95d42d0e066b8dddd6e08935cafb068387a4069181b660bc9d7b6298e7d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-03-28T20:11:15Z","title_canon_sha256":"6f83d340a134023526b09dd6336b9fdc23aa2fa314e528f850d8e7885977961d"},"schema_version":"1.0","source":{"id":"2203.15065","kind":"arxiv","version":2}},"canonical_sha256":"4644db361a1e936a69560c37ff79581a7fc26fb8a7ce45d88846517e449d1527","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4644db361a1e936a69560c37ff79581a7fc26fb8a7ce45d88846517e449d1527","first_computed_at":"2026-07-05T05:11:37.973575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:11:37.973575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wLlliAR6o+/u/zY/UntczXdHOwzeqYq3P0FsW6/kyh+QiPeZu3sK5olwRBKm/dod/nLKPwv7IAJb9PJLnt63Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:11:37.974021Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.15065","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87fe706df82685226ddc34c34564e9c7b388a80c0d2b2b5142610b65c3bd38bd","sha256:afb4fd6df0bc812f9942dd3433c1fc1817317bd3228bccc4f39b7488f8a573b9"],"state_sha256":"79985fd193bb662ae254d1eb280afa34d0e60ab600da06640480feb4593effe3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aM9qg83vCkMDGZ0VKab5eAzugZgWkT/GnHWxkQ7fUYQP5QMmQ/iO12KmZBcG7GjGDZ1f1SBwh8AqOLsY7j7DBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T17:56:07.645957Z","bundle_sha256":"e19335efec34a31ce83e35d12c14821d84a7cf1e435391d83324f0d2db9bd15f"}}