{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IL5EIAS5H26TKXMVVG72PLWH67","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":"bcdd992cdffb46931ad3343e4d7210274713fd94022c44d36793db3fb23d062b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-03-27T17:46:42Z","title_canon_sha256":"7dd2a199a130d27cfd72c22dc54e4739d14cc5a55512a8f0b64dcf09b6c01366"},"schema_version":"1.0","source":{"id":"2503.21732","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.21732","created_at":"2026-07-05T10:40:29Z"},{"alias_kind":"arxiv_version","alias_value":"2503.21732v1","created_at":"2026-07-05T10:40:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.21732","created_at":"2026-07-05T10:40:29Z"},{"alias_kind":"pith_short_12","alias_value":"IL5EIAS5H26T","created_at":"2026-07-05T10:40:29Z"},{"alias_kind":"pith_short_16","alias_value":"IL5EIAS5H26TKXMV","created_at":"2026-07-05T10:40:29Z"},{"alias_kind":"pith_short_8","alias_value":"IL5EIAS5","created_at":"2026-07-05T10:40:29Z"}],"graph_snapshots":[{"event_id":"sha256:72972c285864aadb2f377c7c5d9493c62ec05e76db026ec0a2f09da3bb97bc6e","target":"graph","created_at":"2026-07-05T10:40:29Z","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/2503.21732/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Creating high-fidelity 3D meshes with arbitrary topology, including open surfaces and complex interiors, remains a significant challenge. Existing implicit field methods often require costly and detail-degrading watertight conversion, while other approaches struggle with high resolutions. This paper introduces SparseFlex, a novel sparse-structured isosurface representation that enables differentiable mesh reconstruction at resolutions up to $1024^3$ directly from rendering losses. SparseFlex combines the accuracy of Flexicubes with a sparse voxel structure, focusing computation on surface-adja","authors_text":"Chia-Hao Chen, Chun Yuan, Ding Liang, Wanli Ouyang, Xianglong He, Yangguang Li, Yan-Pei Cao, Yuan-Chen Guo, Zi-Xin Zou","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-03-27T17:46:42Z","title":"SparseFlex: High-Resolution and Arbitrary-Topology 3D Shape Modeling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.21732","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":"sha256:13aac5a4c7c7a35234f4e4ff267031c641554f47b63aef8040505c87882ed70a","target":"record","created_at":"2026-07-05T10:40:29Z","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":"bcdd992cdffb46931ad3343e4d7210274713fd94022c44d36793db3fb23d062b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-03-27T17:46:42Z","title_canon_sha256":"7dd2a199a130d27cfd72c22dc54e4739d14cc5a55512a8f0b64dcf09b6c01366"},"schema_version":"1.0","source":{"id":"2503.21732","kind":"arxiv","version":1}},"canonical_sha256":"42fa44025d3ebd355d95a9bfa7aec7f7f51e6fd8d17cb1a1f7fb57ac5d328743","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42fa44025d3ebd355d95a9bfa7aec7f7f51e6fd8d17cb1a1f7fb57ac5d328743","first_computed_at":"2026-07-05T10:40:29.540622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:40:29.540622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mvy2URYyCVMwZuCTklivOIWvmrHSE7q/++kcI0gofmRHokRKygn9aCv6mtetD4EP7WInOneJHRPeRewufes1Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:40:29.541105Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.21732","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13aac5a4c7c7a35234f4e4ff267031c641554f47b63aef8040505c87882ed70a","sha256:72972c285864aadb2f377c7c5d9493c62ec05e76db026ec0a2f09da3bb97bc6e"],"state_sha256":"5f570d374d12fa9f774ef6e8ffa146de3422d90350e371cedd5bb27c6b26918b"}