{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:NF4V2RZNY73WPA3LFYF47HCG7D","short_pith_number":"pith:NF4V2RZN","schema_version":"1.0","canonical_sha256":"69795d472dc7f767836b2e0bcf9c46f8c601ae0fb6fedc3aa9f386e7f70a7201","source":{"kind":"arxiv","id":"2011.11693","version":2},"attestation_state":"computed","paper":{"title":"Sequential Topological Representations for Predictive Models of Deformable Objects","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CV","cs.LG"],"primary_cat":"cs.RO","authors_text":"Anastasiia Varava, Danica Kragic, J. Frederico Carvalho, Peiyang Shi, Rika Antonova","submitted_at":"2020-11-23T19:45:15Z","abstract_excerpt":"Deformable objects present a formidable challenge for robotic manipulation due to the lack of canonical low-dimensional representations and the difficulty of capturing, predicting, and controlling such objects. We construct compact topological representations to capture the state of highly deformable objects that are topologically nontrivial. We develop an approach that tracks the evolution of this topological state through time. Under several mild assumptions, we prove that the topology of the scene and its evolution can be recovered from point clouds representing the scene. Our further contr"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2011.11693","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2020-11-23T19:45:15Z","cross_cats_sorted":["cs.CV","cs.LG"],"title_canon_sha256":"10181a71a8005642dd9963119507645ce9a1e94073733c9b8a684e1881ff3caa","abstract_canon_sha256":"4b65b4ecf339ab8164bbc18c55f282e41eb229df6761a941ae0869a10fe845c2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:39:07.763970Z","signature_b64":"U6lGSuYMQBW8w3lCkU7ACD+Tqs8af4yspr6WqxubWgJsgZANWt2JsTfrPYGpxQAjK/9iP7Y/GN71J5pSH42qAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"69795d472dc7f767836b2e0bcf9c46f8c601ae0fb6fedc3aa9f386e7f70a7201","last_reissued_at":"2026-07-05T02:39:07.763495Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:39:07.763495Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sequential Topological Representations for Predictive Models of Deformable Objects","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CV","cs.LG"],"primary_cat":"cs.RO","authors_text":"Anastasiia Varava, Danica Kragic, J. Frederico Carvalho, Peiyang Shi, Rika Antonova","submitted_at":"2020-11-23T19:45:15Z","abstract_excerpt":"Deformable objects present a formidable challenge for robotic manipulation due to the lack of canonical low-dimensional representations and the difficulty of capturing, predicting, and controlling such objects. We construct compact topological representations to capture the state of highly deformable objects that are topologically nontrivial. We develop an approach that tracks the evolution of this topological state through time. Under several mild assumptions, we prove that the topology of the scene and its evolution can be recovered from point clouds representing the scene. Our further contr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.11693","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/2011.11693/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2011.11693","created_at":"2026-07-05T02:39:07.763554+00:00"},{"alias_kind":"arxiv_version","alias_value":"2011.11693v2","created_at":"2026-07-05T02:39:07.763554+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.11693","created_at":"2026-07-05T02:39:07.763554+00:00"},{"alias_kind":"pith_short_12","alias_value":"NF4V2RZNY73W","created_at":"2026-07-05T02:39:07.763554+00:00"},{"alias_kind":"pith_short_16","alias_value":"NF4V2RZNY73WPA3L","created_at":"2026-07-05T02:39:07.763554+00:00"},{"alias_kind":"pith_short_8","alias_value":"NF4V2RZN","created_at":"2026-07-05T02:39:07.763554+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D","json":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D.json","graph_json":"https://pith.science/api/pith-number/NF4V2RZNY73WPA3LFYF47HCG7D/graph.json","events_json":"https://pith.science/api/pith-number/NF4V2RZNY73WPA3LFYF47HCG7D/events.json","paper":"https://pith.science/paper/NF4V2RZN"},"agent_actions":{"view_html":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D","download_json":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D.json","view_paper":"https://pith.science/paper/NF4V2RZN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2011.11693&json=true","fetch_graph":"https://pith.science/api/pith-number/NF4V2RZNY73WPA3LFYF47HCG7D/graph.json","fetch_events":"https://pith.science/api/pith-number/NF4V2RZNY73WPA3LFYF47HCG7D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D/action/storage_attestation","attest_author":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D/action/author_attestation","sign_citation":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D/action/citation_signature","submit_replication":"https://pith.science/pith/NF4V2RZNY73WPA3LFYF47HCG7D/action/replication_record"}},"created_at":"2026-07-05T02:39:07.763554+00:00","updated_at":"2026-07-05T02:39:07.763554+00:00"}