{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:E6FP4KL6VSZYTLXMQCBKWWOC5H","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":"da1d655bb2378ae744ef9864970cf73dadea07d71f8f37ea7598a0cf48e54f24","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-06-18T12:11:36Z","title_canon_sha256":"4f2ce69ff1e082103c26c79c407231009da8653b14dad75f8dc3c460edd1783f"},"schema_version":"1.0","source":{"id":"2606.20150","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.20150","created_at":"2026-06-19T16:13:04Z"},{"alias_kind":"arxiv_version","alias_value":"2606.20150v1","created_at":"2026-06-19T16:13:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.20150","created_at":"2026-06-19T16:13:04Z"},{"alias_kind":"pith_short_12","alias_value":"E6FP4KL6VSZY","created_at":"2026-06-19T16:13:04Z"},{"alias_kind":"pith_short_16","alias_value":"E6FP4KL6VSZYTLXM","created_at":"2026-06-19T16:13:04Z"},{"alias_kind":"pith_short_8","alias_value":"E6FP4KL6","created_at":"2026-06-19T16:13:04Z"}],"graph_snapshots":[{"event_id":"sha256:0af9c29fc666cdca74e7e3c521bd5d2909e349b788ec3f730cf8b7a5ffbd25c4","target":"graph","created_at":"2026-06-19T16:13:04Z","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/2606.20150/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Human Action Recognition (HAR) is frequently investigated in Human-Robot Collaboration (HRC) research to understand what actions have been performed and hence the state of a collaborative task. Accurately tracking an assembly state from HAR is however not fully investigated, and in realistic scenarios is not a trivial task. This research systematically investigates and compares methods for tracking assembly state using action recognition inputs. Investigations using two diverse datasets and five state tracking approaches, including logic-based, Hidden Markov Model (HMM), and neural network (NN","authors_text":"James Fant-Male, Roel Pieters","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-06-18T12:11:36Z","title":"Robust Assembly State Reasoning from Action Recognition for Human-Robot Collaboration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.20150","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":"sha256:33c8da771492f863e303c6a4556e7c68efc0b86b542ccdb1d10728ea2017fae1","target":"record","created_at":"2026-06-19T16:13:04Z","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":"da1d655bb2378ae744ef9864970cf73dadea07d71f8f37ea7598a0cf48e54f24","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-06-18T12:11:36Z","title_canon_sha256":"4f2ce69ff1e082103c26c79c407231009da8653b14dad75f8dc3c460edd1783f"},"schema_version":"1.0","source":{"id":"2606.20150","kind":"arxiv","version":1}},"canonical_sha256":"278afe297eacb389aeec8082ab59c2e9f550a3c149965e43b7bbd8296f0bd01f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"278afe297eacb389aeec8082ab59c2e9f550a3c149965e43b7bbd8296f0bd01f","first_computed_at":"2026-06-19T16:13:04.120185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:13:04.120185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WsuQF2gwSN56VjQ/FAG+NUg0gUDXOZK2lBEwZ+RnUETIwWiGbDBYTEW9pvi5FGHEyVVIL7GnmbbfA42t3C1SBA==","signature_status":"signed_v1","signed_at":"2026-06-19T16:13:04.120618Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.20150","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33c8da771492f863e303c6a4556e7c68efc0b86b542ccdb1d10728ea2017fae1","sha256:0af9c29fc666cdca74e7e3c521bd5d2909e349b788ec3f730cf8b7a5ffbd25c4"],"state_sha256":"eb0e990dd94a34aaa6b5dfdc6c0ab2e4e6d400e8b11ec92b01c5f2f053ed725a"}