{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:AJPTFEBEJHGX2LOWZ7BJOVHUYC","short_pith_number":"pith:AJPTFEBE","canonical_record":{"source":{"id":"2012.10660","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-19T11:16:57Z","cross_cats_sorted":[],"title_canon_sha256":"8a48aaedee06b8efa922184083af97ee31be4c48792645c2e6e0ff954eeb3e18","abstract_canon_sha256":"ecb878057bd975dcd22ad578c0ce1802a4f8bd98a628a75b4930932a6daddb09"},"schema_version":"1.0"},"canonical_sha256":"025f32902449cd7d2dd6cfc29754f4c08751bec1c0ed0b7bb040149a314b86ca","source":{"kind":"arxiv","id":"2012.10660","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.10660","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"arxiv_version","alias_value":"2012.10660v1","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.10660","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"pith_short_12","alias_value":"AJPTFEBEJHGX","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"pith_short_16","alias_value":"AJPTFEBEJHGX2LOW","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"pith_short_8","alias_value":"AJPTFEBE","created_at":"2026-07-05T02:00:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:AJPTFEBEJHGX2LOWZ7BJOVHUYC","target":"record","payload":{"canonical_record":{"source":{"id":"2012.10660","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-19T11:16:57Z","cross_cats_sorted":[],"title_canon_sha256":"8a48aaedee06b8efa922184083af97ee31be4c48792645c2e6e0ff954eeb3e18","abstract_canon_sha256":"ecb878057bd975dcd22ad578c0ce1802a4f8bd98a628a75b4930932a6daddb09"},"schema_version":"1.0"},"canonical_sha256":"025f32902449cd7d2dd6cfc29754f4c08751bec1c0ed0b7bb040149a314b86ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:00:54.117776Z","signature_b64":"aoGZD0TMI26hSu4BIYMsnsafS5WWYRvyErmf6TfZlVsySI/pzaiw5aqSYcYx+LGty1a38qIcNZkD/c4F8tXLAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"025f32902449cd7d2dd6cfc29754f4c08751bec1c0ed0b7bb040149a314b86ca","last_reissued_at":"2026-07-05T02:00:54.117421Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:00:54.117421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.10660","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":"2026-07-05T02:00:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OV3ooT3/42mq4a8r8YUTshzcB6X7w2aRHBHpGTyQVJn+J7i4b63RFwGBEWmFee6qZaFEM+sZ0Aguyq8u6RP6Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T11:44:54.345182Z"},"content_sha256":"6446df61ed9da5018aae2419def4b7800fb100de2c3c296992fc2e889006238c","schema_version":"1.0","event_id":"sha256:6446df61ed9da5018aae2419def4b7800fb100de2c3c296992fc2e889006238c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:AJPTFEBEJHGX2LOWZ7BJOVHUYC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The importance of silhouette optimization in 3D shape reconstruction system from multiple object scenes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Martin Servin, Waqqas-ur-Rehman Butt","submitted_at":"2020-12-19T11:16:57Z","abstract_excerpt":"This paper presents a multi stage 3D shape reconstruction system of multiple object scenes by considering the silhouette inconsistencies in shape-from silhouette SFS method. These inconsistencies are common in multiple view images due to object occlusions in different views, segmentation and shadows or reflection due to objects or light directions. These factors raise huge challenges when attempting to construct the 3D shape by using existing approaches which reconstruct only that part of the volume which projects consistently in all the silhouettes, leaving the rest unreconstructed. As a resu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.10660","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/2012.10660/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":"2026-07-05T02:00:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"diBCxEM4cBHgjBTKYVFdqsT8Hs9nlAy0TkJfhUCQAAAZD8m2pz7JkRyjvt1zDckMBLauTdVf+T5xvpoePDZAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T11:44:54.345680Z"},"content_sha256":"502750dd6ecc1729a5bce7a9b535e0ce46c625afca8e0a35b41bd2d819539b0d","schema_version":"1.0","event_id":"sha256:502750dd6ecc1729a5bce7a9b535e0ce46c625afca8e0a35b41bd2d819539b0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC/bundle.json","state_url":"https://pith.science/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC/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":"2026-08-20T11:44:54Z","links":{"resolver":"https://pith.science/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC","bundle":"https://pith.science/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC/bundle.json","state":"https://pith.science/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AJPTFEBEJHGX2LOWZ7BJOVHUYC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:AJPTFEBEJHGX2LOWZ7BJOVHUYC","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":"ecb878057bd975dcd22ad578c0ce1802a4f8bd98a628a75b4930932a6daddb09","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-19T11:16:57Z","title_canon_sha256":"8a48aaedee06b8efa922184083af97ee31be4c48792645c2e6e0ff954eeb3e18"},"schema_version":"1.0","source":{"id":"2012.10660","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.10660","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"arxiv_version","alias_value":"2012.10660v1","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.10660","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"pith_short_12","alias_value":"AJPTFEBEJHGX","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"pith_short_16","alias_value":"AJPTFEBEJHGX2LOW","created_at":"2026-07-05T02:00:54Z"},{"alias_kind":"pith_short_8","alias_value":"AJPTFEBE","created_at":"2026-07-05T02:00:54Z"}],"graph_snapshots":[{"event_id":"sha256:502750dd6ecc1729a5bce7a9b535e0ce46c625afca8e0a35b41bd2d819539b0d","target":"graph","created_at":"2026-07-05T02:00:54Z","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/2012.10660/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents a multi stage 3D shape reconstruction system of multiple object scenes by considering the silhouette inconsistencies in shape-from silhouette SFS method. These inconsistencies are common in multiple view images due to object occlusions in different views, segmentation and shadows or reflection due to objects or light directions. These factors raise huge challenges when attempting to construct the 3D shape by using existing approaches which reconstruct only that part of the volume which projects consistently in all the silhouettes, leaving the rest unreconstructed. As a resu","authors_text":"Martin Servin, Waqqas-ur-Rehman Butt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-19T11:16:57Z","title":"The importance of silhouette optimization in 3D shape reconstruction system from multiple object scenes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.10660","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":"sha256:6446df61ed9da5018aae2419def4b7800fb100de2c3c296992fc2e889006238c","target":"record","created_at":"2026-07-05T02:00:54Z","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":"ecb878057bd975dcd22ad578c0ce1802a4f8bd98a628a75b4930932a6daddb09","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-12-19T11:16:57Z","title_canon_sha256":"8a48aaedee06b8efa922184083af97ee31be4c48792645c2e6e0ff954eeb3e18"},"schema_version":"1.0","source":{"id":"2012.10660","kind":"arxiv","version":1}},"canonical_sha256":"025f32902449cd7d2dd6cfc29754f4c08751bec1c0ed0b7bb040149a314b86ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"025f32902449cd7d2dd6cfc29754f4c08751bec1c0ed0b7bb040149a314b86ca","first_computed_at":"2026-07-05T02:00:54.117421Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:00:54.117421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aoGZD0TMI26hSu4BIYMsnsafS5WWYRvyErmf6TfZlVsySI/pzaiw5aqSYcYx+LGty1a38qIcNZkD/c4F8tXLAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:00:54.117776Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.10660","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6446df61ed9da5018aae2419def4b7800fb100de2c3c296992fc2e889006238c","sha256:502750dd6ecc1729a5bce7a9b535e0ce46c625afca8e0a35b41bd2d819539b0d"],"state_sha256":"7306df4ec32babe66e4529014c62f666ca8d7bd83d2087ec416e8b191fe746df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6lumLCPwQfckFxtLs8qlUrJ7wK73E7YHSjEBF2aLTlvlW6L5Nw+yrZqlJIojBmhKFr9lKceDQBzzEmh1ROSuAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T11:44:54.349164Z","bundle_sha256":"61131e9cdd8a0ca7d0bd4e02d92cf6a1d4cec7b33918629e08c333bc049e0aa6"}}