{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2EMXSUW5HELLDPY46XGGHCLLEW","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":"aedb6fe822fc3d06d04a4b2ae382ddc54f7932bda83ee0b1c91b6a4325bf3f6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-04-14T11:55:45Z","title_canon_sha256":"a5c496cea920633464105dd95ce908caefa64ec70e48c842d081aac51ad06fb9"},"schema_version":"1.0","source":{"id":"1504.03504","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.03504","created_at":"2026-05-18T02:18:50Z"},{"alias_kind":"arxiv_version","alias_value":"1504.03504v1","created_at":"2026-05-18T02:18:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.03504","created_at":"2026-05-18T02:18:50Z"},{"alias_kind":"pith_short_12","alias_value":"2EMXSUW5HELL","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2EMXSUW5HELLDPY4","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2EMXSUW5","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:856d8dcd78feca6f12683ee3184fa64e83bbf21dd40febb829289fe639f79932","target":"graph","created_at":"2026-05-18T02:18:50Z","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":"Retrieving 3D models from 2D human sketches has received considerable attention in the areas of graphics, image retrieval, and computer vision. Almost always in state of the art approaches a large amount of \"best views\" are computed for 3D models, with the hope that the query sketch matches one of these 2D projections of 3D models using predefined features.\n  We argue that this two stage approach (view selection -- matching) is pragmatic but also problematic because the \"best views\" are subjective and ambiguous, which makes the matching inputs obscure. This imprecise nature of matching further","authors_text":"Fang Wang, Le Kang, Yi Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-04-14T11:55:45Z","title":"Sketch-based 3D Shape Retrieval using Convolutional Neural Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.03504","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":"sha256:0b4e6f75a5787f23250443f3840658a563381e52c4b5541f7c1888040afd09d8","target":"record","created_at":"2026-05-18T02:18:50Z","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":"aedb6fe822fc3d06d04a4b2ae382ddc54f7932bda83ee0b1c91b6a4325bf3f6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-04-14T11:55:45Z","title_canon_sha256":"a5c496cea920633464105dd95ce908caefa64ec70e48c842d081aac51ad06fb9"},"schema_version":"1.0","source":{"id":"1504.03504","kind":"arxiv","version":1}},"canonical_sha256":"d1197952dd3916b1bf1cf5cc63896b25ba704a2872db0647d1bce7b46865be16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1197952dd3916b1bf1cf5cc63896b25ba704a2872db0647d1bce7b46865be16","first_computed_at":"2026-05-18T02:18:50.713043Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:50.713043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LqJsLS28qbtq1v13r8pU1p3YfCmrBKtqegWz8g4qHFq5H5a1yCI6VHSKkaUwdJJhxxwMLlAGrcUIVWu+YQPLDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:50.713748Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.03504","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b4e6f75a5787f23250443f3840658a563381e52c4b5541f7c1888040afd09d8","sha256:856d8dcd78feca6f12683ee3184fa64e83bbf21dd40febb829289fe639f79932"],"state_sha256":"770ece444757c56b6190ad85594dad65d0e6357162dee38c8d521244af22f389"}