{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:GPSORXKHPA355R7NDDZLM2WCHZ","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":"f755d443783fae246d415b19bba07bfc511a059c44529fe48e525d6c04d2b768","cross_cats_sorted":["cs.AI","cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-04-22T17:49:59Z","title_canon_sha256":"a03e2dbfd1d45cf7dd303b414a28668c6bad125370bc498fee55c952d99a0d6c"},"schema_version":"1.0","source":{"id":"2104.11216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.11216","created_at":"2026-07-05T02:34:18Z"},{"alias_kind":"arxiv_version","alias_value":"2104.11216v1","created_at":"2026-07-05T02:34:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.11216","created_at":"2026-07-05T02:34:18Z"},{"alias_kind":"pith_short_12","alias_value":"GPSORXKHPA35","created_at":"2026-07-05T02:34:18Z"},{"alias_kind":"pith_short_16","alias_value":"GPSORXKHPA355R7N","created_at":"2026-07-05T02:34:18Z"},{"alias_kind":"pith_short_8","alias_value":"GPSORXKH","created_at":"2026-07-05T02:34:18Z"}],"graph_snapshots":[{"event_id":"sha256:6873128e09ea67b0e85b24038bd1870458149d498c9a26398300f2bec088ba76","target":"graph","created_at":"2026-07-05T02:34:18Z","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/2104.11216/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Current approaches to video analysis of human motion focus on raw pixels or keypoints as the basic units of reasoning. We posit that adding higher-level motion primitives, which can capture natural coarser units of motion such as backswing or follow-through, can be used to improve downstream analysis tasks. This higher level of abstraction can also capture key features, such as loops of repeated primitives, that are currently inaccessible at lower levels of representation. We therefore introduce Motion Programs, a neuro-symbolic, program-like representation that expresses motions as a composit","authors_text":"Alex Aiken, Jiajun Wu, Jiayuan Mao, Sumith Kulal","cross_cats":["cs.AI","cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-04-22T17:49:59Z","title":"Hierarchical Motion Understanding via Motion Programs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.11216","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":"sha256:6b79a67e75e6543d85dc65019a78f670b972a0553f1458769e7aad0e8bd2c20c","target":"record","created_at":"2026-07-05T02:34:18Z","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":"f755d443783fae246d415b19bba07bfc511a059c44529fe48e525d6c04d2b768","cross_cats_sorted":["cs.AI","cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-04-22T17:49:59Z","title_canon_sha256":"a03e2dbfd1d45cf7dd303b414a28668c6bad125370bc498fee55c952d99a0d6c"},"schema_version":"1.0","source":{"id":"2104.11216","kind":"arxiv","version":1}},"canonical_sha256":"33e4e8dd477837dec7ed18f2b66ac23e6a77cc94a8037ab481fe05b786b69ab8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33e4e8dd477837dec7ed18f2b66ac23e6a77cc94a8037ab481fe05b786b69ab8","first_computed_at":"2026-07-05T02:34:18.869236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:34:18.869236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9IFKc+gjKDlODa4LP7RoS2LjfsQS45d3z1e3nlSRXZ18AqgiQtcmgaMit6A7DnVOYfSakRK4g4MZB00FBZqiAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:34:18.869689Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.11216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b79a67e75e6543d85dc65019a78f670b972a0553f1458769e7aad0e8bd2c20c","sha256:6873128e09ea67b0e85b24038bd1870458149d498c9a26398300f2bec088ba76"],"state_sha256":"f6667b17d5b907c6e3bd44c38885481292f6687aff20a030988eced4486ec960"}