{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:U3FN6AZEQQCL5YKIXJ65LGE75J","short_pith_number":"pith:U3FN6AZE","canonical_record":{"source":{"id":"2504.13788","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-18T16:40:16Z","cross_cats_sorted":[],"title_canon_sha256":"a4b889f144a3eae053f1c146927b15550aa1cbab5b2d81789322c64a8d7fd4ca","abstract_canon_sha256":"c7cfc5cf37f08006a0876da35ee8a9f09c3cb7aabff871359a6cf12461d9092a"},"schema_version":"1.0"},"canonical_sha256":"a6cadf03248404bee148ba7dd5989fea5224961a988962eb39c6ef2fd2f289a6","source":{"kind":"arxiv","id":"2504.13788","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.13788","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"arxiv_version","alias_value":"2504.13788v1","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.13788","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"pith_short_12","alias_value":"U3FN6AZEQQCL","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"pith_short_16","alias_value":"U3FN6AZEQQCL5YKI","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"pith_short_8","alias_value":"U3FN6AZE","created_at":"2026-07-05T10:51:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:U3FN6AZEQQCL5YKIXJ65LGE75J","target":"record","payload":{"canonical_record":{"source":{"id":"2504.13788","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-18T16:40:16Z","cross_cats_sorted":[],"title_canon_sha256":"a4b889f144a3eae053f1c146927b15550aa1cbab5b2d81789322c64a8d7fd4ca","abstract_canon_sha256":"c7cfc5cf37f08006a0876da35ee8a9f09c3cb7aabff871359a6cf12461d9092a"},"schema_version":"1.0"},"canonical_sha256":"a6cadf03248404bee148ba7dd5989fea5224961a988962eb39c6ef2fd2f289a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:51:02.153191Z","signature_b64":"7+6O4DfdAvcRQtEABP+E7L91ysqlwrdxwg2WoUcwZRIYFLW5nkUP7ySa22b7/lyjtm/fEXIYsO+Mx+wYgKuGDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6cadf03248404bee148ba7dd5989fea5224961a988962eb39c6ef2fd2f289a6","last_reissued_at":"2026-07-05T10:51:02.152730Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:51:02.152730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.13788","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":"2026-07-05T10:51:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HbzXlVchhpREcfPqTKiDdrjCNkN9BLAuQtzpwCZHksKmefDEo4WpCE9AHo31QD6PZqv2a857DkrjTRYoE4XLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T19:30:22.015572Z"},"content_sha256":"e3ed4b720c41fd8ea2d27ffeb56eb1340733c324224c5ba816b932aaa9fd3a38","schema_version":"1.0","event_id":"sha256:e3ed4b720c41fd8ea2d27ffeb56eb1340733c324224c5ba816b932aaa9fd3a38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:U3FN6AZEQQCL5YKIXJ65LGE75J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RefComp: A Reference-guided Unified Framework for Unpaired Point Cloud Completion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Feng Zheng, Jinyu Yang, Victor Sanchez, Yixuan Yang, Zixiang Zhao","submitted_at":"2025-04-18T16:40:16Z","abstract_excerpt":"The unpaired point cloud completion task aims to complete a partial point cloud by using models trained with no ground truth. Existing unpaired point cloud completion methods are class-aware, i.e., a separate model is needed for each object class. Since they have limited generalization capabilities, these methods perform poorly in real-world scenarios when confronted with a wide range of point clouds of generic 3D objects. In this paper, we propose a novel unpaired point cloud completion framework, namely the Reference-guided Completion (RefComp) framework, which attains strong performance in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.13788","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/2504.13788/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":"2026-07-05T10:51:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qXmvORRM6VM6083nrj1l1e6q9BSDYo1Uux7xFubUfsk1SbRHxehUImeVNqBfnrvbWDrQd2RG0feYIulUlpIwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T19:30:22.016125Z"},"content_sha256":"1ed0dbec33390ae7cc610c6e1eb476fb018bac09f0e84e9ca92f77eac4cfb03e","schema_version":"1.0","event_id":"sha256:1ed0dbec33390ae7cc610c6e1eb476fb018bac09f0e84e9ca92f77eac4cfb03e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U3FN6AZEQQCL5YKIXJ65LGE75J/bundle.json","state_url":"https://pith.science/pith/U3FN6AZEQQCL5YKIXJ65LGE75J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U3FN6AZEQQCL5YKIXJ65LGE75J/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":"2026-08-19T19:30:22Z","links":{"resolver":"https://pith.science/pith/U3FN6AZEQQCL5YKIXJ65LGE75J","bundle":"https://pith.science/pith/U3FN6AZEQQCL5YKIXJ65LGE75J/bundle.json","state":"https://pith.science/pith/U3FN6AZEQQCL5YKIXJ65LGE75J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U3FN6AZEQQCL5YKIXJ65LGE75J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:U3FN6AZEQQCL5YKIXJ65LGE75J","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":"c7cfc5cf37f08006a0876da35ee8a9f09c3cb7aabff871359a6cf12461d9092a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-18T16:40:16Z","title_canon_sha256":"a4b889f144a3eae053f1c146927b15550aa1cbab5b2d81789322c64a8d7fd4ca"},"schema_version":"1.0","source":{"id":"2504.13788","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.13788","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"arxiv_version","alias_value":"2504.13788v1","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.13788","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"pith_short_12","alias_value":"U3FN6AZEQQCL","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"pith_short_16","alias_value":"U3FN6AZEQQCL5YKI","created_at":"2026-07-05T10:51:02Z"},{"alias_kind":"pith_short_8","alias_value":"U3FN6AZE","created_at":"2026-07-05T10:51:02Z"}],"graph_snapshots":[{"event_id":"sha256:1ed0dbec33390ae7cc610c6e1eb476fb018bac09f0e84e9ca92f77eac4cfb03e","target":"graph","created_at":"2026-07-05T10:51:02Z","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/2504.13788/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The unpaired point cloud completion task aims to complete a partial point cloud by using models trained with no ground truth. Existing unpaired point cloud completion methods are class-aware, i.e., a separate model is needed for each object class. Since they have limited generalization capabilities, these methods perform poorly in real-world scenarios when confronted with a wide range of point clouds of generic 3D objects. In this paper, we propose a novel unpaired point cloud completion framework, namely the Reference-guided Completion (RefComp) framework, which attains strong performance in ","authors_text":"Feng Zheng, Jinyu Yang, Victor Sanchez, Yixuan Yang, Zixiang Zhao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-18T16:40:16Z","title":"RefComp: A Reference-guided Unified Framework for Unpaired Point Cloud Completion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.13788","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:e3ed4b720c41fd8ea2d27ffeb56eb1340733c324224c5ba816b932aaa9fd3a38","target":"record","created_at":"2026-07-05T10:51:02Z","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":"c7cfc5cf37f08006a0876da35ee8a9f09c3cb7aabff871359a6cf12461d9092a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-04-18T16:40:16Z","title_canon_sha256":"a4b889f144a3eae053f1c146927b15550aa1cbab5b2d81789322c64a8d7fd4ca"},"schema_version":"1.0","source":{"id":"2504.13788","kind":"arxiv","version":1}},"canonical_sha256":"a6cadf03248404bee148ba7dd5989fea5224961a988962eb39c6ef2fd2f289a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6cadf03248404bee148ba7dd5989fea5224961a988962eb39c6ef2fd2f289a6","first_computed_at":"2026-07-05T10:51:02.152730Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:51:02.152730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7+6O4DfdAvcRQtEABP+E7L91ysqlwrdxwg2WoUcwZRIYFLW5nkUP7ySa22b7/lyjtm/fEXIYsO+Mx+wYgKuGDA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:51:02.153191Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.13788","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3ed4b720c41fd8ea2d27ffeb56eb1340733c324224c5ba816b932aaa9fd3a38","sha256:1ed0dbec33390ae7cc610c6e1eb476fb018bac09f0e84e9ca92f77eac4cfb03e"],"state_sha256":"db0a3fd4491d84e4948968a31fcea6a22a65209731b01f7aff0c320e0b2d3239"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jwAaML9EeCvyADq0XgZtE7KBW+JU0vHTP7tqxDl/XCiRHQXnku4/QBKhm2Pl6zZ+tPJfhlWJMgVkJS0ML3O1Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T19:30:22.022456Z","bundle_sha256":"d13ec81c7065ec61d0aab848c47c6d3e27f45fd4c42038a7a30c1eefe134a90d"}}