{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:K534FBYGIEPAL2EZDOBLFYMMGF","short_pith_number":"pith:K534FBYG","canonical_record":{"source":{"id":"2307.04013","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-07-08T16:46:01Z","cross_cats_sorted":[],"title_canon_sha256":"4624c53c79c18b0d2dc192100aa5ff29c84c61cdee75db205ebeb6325b82c1de","abstract_canon_sha256":"3a56e4f80c192b1f2271416000ae895814328b702ffa93b2a1f36ea57b0e1173"},"schema_version":"1.0"},"canonical_sha256":"5777c28706411e05e8991b82b2e18c315cfdf5a6cc65f4a7914a38dbc610e17c","source":{"kind":"arxiv","id":"2307.04013","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.04013","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"arxiv_version","alias_value":"2307.04013v2","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.04013","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"pith_short_12","alias_value":"K534FBYGIEPA","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"pith_short_16","alias_value":"K534FBYGIEPAL2EZ","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"pith_short_8","alias_value":"K534FBYG","created_at":"2026-07-05T10:52:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:K534FBYGIEPAL2EZDOBLFYMMGF","target":"record","payload":{"canonical_record":{"source":{"id":"2307.04013","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-07-08T16:46:01Z","cross_cats_sorted":[],"title_canon_sha256":"4624c53c79c18b0d2dc192100aa5ff29c84c61cdee75db205ebeb6325b82c1de","abstract_canon_sha256":"3a56e4f80c192b1f2271416000ae895814328b702ffa93b2a1f36ea57b0e1173"},"schema_version":"1.0"},"canonical_sha256":"5777c28706411e05e8991b82b2e18c315cfdf5a6cc65f4a7914a38dbc610e17c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:52:35.707784Z","signature_b64":"rDgKnB+7Pm2GWjrI3LvM+dCMSS071K78kKwQr+KoZp6HHxVg9b/ScF/IIDTP/LTklZ0AcOiPNHnNDMHFpE8wAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5777c28706411e05e8991b82b2e18c315cfdf5a6cc65f4a7914a38dbc610e17c","last_reissued_at":"2026-07-05T10:52:35.707327Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:52:35.707327Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.04013","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":"2026-07-05T10:52:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fl8Krv+XX6KEg1UzZceUwphz/IA8c1ubou+V7HyGWurQTXz3cQA4SxGjZgD93qiIuXsDYJ3PuEW56HXK6zWbCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:36:26.001084Z"},"content_sha256":"002359b17eb7cf9607b368d6a002d78cd820ae7d30601a4e288e41b7d9cac980","schema_version":"1.0","event_id":"sha256:002359b17eb7cf9607b368d6a002d78cd820ae7d30601a4e288e41b7d9cac980"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:K534FBYGIEPAL2EZDOBLFYMMGF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"BPNet: B\\'ezier Primitive Segmentation on 3D Point Clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Cheng Wen, Pierre Alliez, Qian Li, Rao Fu, Xiao Xiao","submitted_at":"2023-07-08T16:46:01Z","abstract_excerpt":"This paper proposes BPNet, a novel end-to-end deep learning framework to learn B\\'ezier primitive segmentation on 3D point clouds. The existing works treat different primitive types separately, thus limiting them to finite shape categories. To address this issue, we seek a generalized primitive segmentation on point clouds. Taking inspiration from B\\'ezier decomposition on NURBS models, we transfer it to guide point cloud segmentation casting off primitive types. A joint optimization framework is proposed to learn B\\'ezier primitive segmentation and geometric fitting simultaneously on a cascad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.04013","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/2307.04013/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":"2026-07-05T10:52:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ygTL80+cj0IhyLVrMBonVyDD49I+2rVV5UVyCI7cvqGSVsFEgcPLRdIHZdi/ndSe9OFo1BuWa5lUJ6RhtP8QBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:36:26.001479Z"},"content_sha256":"cc7284a9c98dcaed0f293f1489d4b1c2bbbe7589986bb0e0165d27f263d25050","schema_version":"1.0","event_id":"sha256:cc7284a9c98dcaed0f293f1489d4b1c2bbbe7589986bb0e0165d27f263d25050"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K534FBYGIEPAL2EZDOBLFYMMGF/bundle.json","state_url":"https://pith.science/pith/K534FBYGIEPAL2EZDOBLFYMMGF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K534FBYGIEPAL2EZDOBLFYMMGF/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":"2026-07-06T19:36:26Z","links":{"resolver":"https://pith.science/pith/K534FBYGIEPAL2EZDOBLFYMMGF","bundle":"https://pith.science/pith/K534FBYGIEPAL2EZDOBLFYMMGF/bundle.json","state":"https://pith.science/pith/K534FBYGIEPAL2EZDOBLFYMMGF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K534FBYGIEPAL2EZDOBLFYMMGF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:K534FBYGIEPAL2EZDOBLFYMMGF","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":"3a56e4f80c192b1f2271416000ae895814328b702ffa93b2a1f36ea57b0e1173","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-07-08T16:46:01Z","title_canon_sha256":"4624c53c79c18b0d2dc192100aa5ff29c84c61cdee75db205ebeb6325b82c1de"},"schema_version":"1.0","source":{"id":"2307.04013","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.04013","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"arxiv_version","alias_value":"2307.04013v2","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.04013","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"pith_short_12","alias_value":"K534FBYGIEPA","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"pith_short_16","alias_value":"K534FBYGIEPAL2EZ","created_at":"2026-07-05T10:52:35Z"},{"alias_kind":"pith_short_8","alias_value":"K534FBYG","created_at":"2026-07-05T10:52:35Z"}],"graph_snapshots":[{"event_id":"sha256:cc7284a9c98dcaed0f293f1489d4b1c2bbbe7589986bb0e0165d27f263d25050","target":"graph","created_at":"2026-07-05T10:52:35Z","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/2307.04013/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper proposes BPNet, a novel end-to-end deep learning framework to learn B\\'ezier primitive segmentation on 3D point clouds. The existing works treat different primitive types separately, thus limiting them to finite shape categories. To address this issue, we seek a generalized primitive segmentation on point clouds. Taking inspiration from B\\'ezier decomposition on NURBS models, we transfer it to guide point cloud segmentation casting off primitive types. A joint optimization framework is proposed to learn B\\'ezier primitive segmentation and geometric fitting simultaneously on a cascad","authors_text":"Cheng Wen, Pierre Alliez, Qian Li, Rao Fu, Xiao Xiao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-07-08T16:46:01Z","title":"BPNet: B\\'ezier Primitive Segmentation on 3D Point Clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.04013","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":"sha256:002359b17eb7cf9607b368d6a002d78cd820ae7d30601a4e288e41b7d9cac980","target":"record","created_at":"2026-07-05T10:52:35Z","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":"3a56e4f80c192b1f2271416000ae895814328b702ffa93b2a1f36ea57b0e1173","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-07-08T16:46:01Z","title_canon_sha256":"4624c53c79c18b0d2dc192100aa5ff29c84c61cdee75db205ebeb6325b82c1de"},"schema_version":"1.0","source":{"id":"2307.04013","kind":"arxiv","version":2}},"canonical_sha256":"5777c28706411e05e8991b82b2e18c315cfdf5a6cc65f4a7914a38dbc610e17c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5777c28706411e05e8991b82b2e18c315cfdf5a6cc65f4a7914a38dbc610e17c","first_computed_at":"2026-07-05T10:52:35.707327Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:52:35.707327Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rDgKnB+7Pm2GWjrI3LvM+dCMSS071K78kKwQr+KoZp6HHxVg9b/ScF/IIDTP/LTklZ0AcOiPNHnNDMHFpE8wAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:52:35.707784Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.04013","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:002359b17eb7cf9607b368d6a002d78cd820ae7d30601a4e288e41b7d9cac980","sha256:cc7284a9c98dcaed0f293f1489d4b1c2bbbe7589986bb0e0165d27f263d25050"],"state_sha256":"382219481fbc20d066a82e438ad4930ba5f762be8811197e0d9bc1c1c4566e89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C1J4pasQEla3QhYg6Gx2VyCnCUjADEQ9ACrEiZ7/RxheOLDiRO5k8cQA497Rznj61jWzU6zjRgvoFpsrg3NODw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T19:36:26.003476Z","bundle_sha256":"6488244572a3a3eb4d24d4c5404910207b94d1bc393979cf8a98d4103ced8918"}}