{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:QSZ6HDU6HJ3LJKDOGRQEAJSSJF","short_pith_number":"pith:QSZ6HDU6","canonical_record":{"source":{"id":"2305.14486","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T19:36:24Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"39c1edebc62c7aafc2b8ff8dbd4be335d313494d571eba700636d930aae4822e","abstract_canon_sha256":"5055fc3cc4653ebdba88e985620e2de2edca9f81d459cbe6f761bdc32d490000"},"schema_version":"1.0"},"canonical_sha256":"84b3e38e9e3a76b4a86e3460402652497afc865c5102af0137af505568994883","source":{"kind":"arxiv","id":"2305.14486","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.14486","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"arxiv_version","alias_value":"2305.14486v2","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.14486","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"pith_short_12","alias_value":"QSZ6HDU6HJ3L","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"pith_short_16","alias_value":"QSZ6HDU6HJ3LJKDO","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"pith_short_8","alias_value":"QSZ6HDU6","created_at":"2026-07-05T07:37:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:QSZ6HDU6HJ3LJKDOGRQEAJSSJF","target":"record","payload":{"canonical_record":{"source":{"id":"2305.14486","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T19:36:24Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"39c1edebc62c7aafc2b8ff8dbd4be335d313494d571eba700636d930aae4822e","abstract_canon_sha256":"5055fc3cc4653ebdba88e985620e2de2edca9f81d459cbe6f761bdc32d490000"},"schema_version":"1.0"},"canonical_sha256":"84b3e38e9e3a76b4a86e3460402652497afc865c5102af0137af505568994883","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:37:11.343270Z","signature_b64":"OqThb5FAneb9SvpErmp3fx6tZk+hKk4TrU8ugI4bo2btNePeOLQtYjLGxCInPZkTuXJsX2154eZxPX8AnSn8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84b3e38e9e3a76b4a86e3460402652497afc865c5102af0137af505568994883","last_reissued_at":"2026-07-05T07:37:11.342827Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:37:11.342827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2305.14486","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":"2026-07-05T07:37:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FownL6uOdgSMIfYwCH8GoDSxmaO6wLGcdaLG+p/F87HBVWayEdjBygsSuejxRMGKpxV0wTsXkwcEklQIHs8GBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T03:55:16.903022Z"},"content_sha256":"364b610671a762cd819c27e5f2ee9d34e293831a7b07a7ab6c5132b030c011d2","schema_version":"1.0","event_id":"sha256:364b610671a762cd819c27e5f2ee9d34e293831a7b07a7ab6c5132b030c011d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:QSZ6HDU6HJ3LJKDOGRQEAJSSJF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Point2SSM: Learning Morphological Variations of Anatomies from Point Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.CV","authors_text":"Jadie Adams, Shireen Elhabian","submitted_at":"2023-05-23T19:36:24Z","abstract_excerpt":"We present Point2SSM, a novel unsupervised learning approach for constructing correspondence-based statistical shape models (SSMs) directly from raw point clouds. SSM is crucial in clinical research, enabling population-level analysis of morphological variation in bones and organs. Traditional methods of SSM construction have limitations, including the requirement of noise-free surface meshes or binary volumes, reliance on assumptions or templates, and prolonged inference times due to simultaneous optimization of the entire cohort. Point2SSM overcomes these barriers by providing a data-driven "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.14486","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/2305.14486/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":"2026-07-05T07:37:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eyuHaw8072uTr0LYnhG/Hz/WJetwvZCPUTtK5YOBjnl5YuyguZnPiRZevNSJ1SVmgwapEdFW7bWqanG41UKKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T03:55:16.903681Z"},"content_sha256":"dfc4cbef24fb0beaeb61a19c2ac6ddc8dcf550f38ff6ad2408b66fbe24cdeddf","schema_version":"1.0","event_id":"sha256:dfc4cbef24fb0beaeb61a19c2ac6ddc8dcf550f38ff6ad2408b66fbe24cdeddf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF/bundle.json","state_url":"https://pith.science/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF/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":"2026-07-07T03:55:16Z","links":{"resolver":"https://pith.science/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF","bundle":"https://pith.science/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF/bundle.json","state":"https://pith.science/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QSZ6HDU6HJ3LJKDOGRQEAJSSJF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:QSZ6HDU6HJ3LJKDOGRQEAJSSJF","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":"5055fc3cc4653ebdba88e985620e2de2edca9f81d459cbe6f761bdc32d490000","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T19:36:24Z","title_canon_sha256":"39c1edebc62c7aafc2b8ff8dbd4be335d313494d571eba700636d930aae4822e"},"schema_version":"1.0","source":{"id":"2305.14486","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.14486","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"arxiv_version","alias_value":"2305.14486v2","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.14486","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"pith_short_12","alias_value":"QSZ6HDU6HJ3L","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"pith_short_16","alias_value":"QSZ6HDU6HJ3LJKDO","created_at":"2026-07-05T07:37:11Z"},{"alias_kind":"pith_short_8","alias_value":"QSZ6HDU6","created_at":"2026-07-05T07:37:11Z"}],"graph_snapshots":[{"event_id":"sha256:dfc4cbef24fb0beaeb61a19c2ac6ddc8dcf550f38ff6ad2408b66fbe24cdeddf","target":"graph","created_at":"2026-07-05T07:37:11Z","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/2305.14486/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present Point2SSM, a novel unsupervised learning approach for constructing correspondence-based statistical shape models (SSMs) directly from raw point clouds. SSM is crucial in clinical research, enabling population-level analysis of morphological variation in bones and organs. Traditional methods of SSM construction have limitations, including the requirement of noise-free surface meshes or binary volumes, reliance on assumptions or templates, and prolonged inference times due to simultaneous optimization of the entire cohort. Point2SSM overcomes these barriers by providing a data-driven ","authors_text":"Jadie Adams, Shireen Elhabian","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T19:36:24Z","title":"Point2SSM: Learning Morphological Variations of Anatomies from Point Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.14486","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":"sha256:364b610671a762cd819c27e5f2ee9d34e293831a7b07a7ab6c5132b030c011d2","target":"record","created_at":"2026-07-05T07:37:11Z","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":"5055fc3cc4653ebdba88e985620e2de2edca9f81d459cbe6f761bdc32d490000","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2023-05-23T19:36:24Z","title_canon_sha256":"39c1edebc62c7aafc2b8ff8dbd4be335d313494d571eba700636d930aae4822e"},"schema_version":"1.0","source":{"id":"2305.14486","kind":"arxiv","version":2}},"canonical_sha256":"84b3e38e9e3a76b4a86e3460402652497afc865c5102af0137af505568994883","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84b3e38e9e3a76b4a86e3460402652497afc865c5102af0137af505568994883","first_computed_at":"2026-07-05T07:37:11.342827Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:37:11.342827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OqThb5FAneb9SvpErmp3fx6tZk+hKk4TrU8ugI4bo2btNePeOLQtYjLGxCInPZkTuXJsX2154eZxPX8AnSn8BA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:37:11.343270Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.14486","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:364b610671a762cd819c27e5f2ee9d34e293831a7b07a7ab6c5132b030c011d2","sha256:dfc4cbef24fb0beaeb61a19c2ac6ddc8dcf550f38ff6ad2408b66fbe24cdeddf"],"state_sha256":"87c766d3d016580d474a3fbdf03332ef3704350c030462750e0006cd2b635780"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rYqGCH9zCtkHcsjTeUiGCfoDJu4Eh+DkKY+QlxJqJmSd3u/KQcrxCXqGRUbXpyv+Wa/EA3GZbInaOdu0hi9kDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T03:55:16.906476Z","bundle_sha256":"1db97dd8cbd9df82313acad3d531ab6a30039e503174505e8717ff444b043382"}}