{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:NRRES2AJW56WNIWWE3BVXRAZ7A","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":"8361051adbc062f809dc4dc3f3757ef8f90ea22b68d242ef879ed9dc8294f291","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-10-19T08:29:25Z","title_canon_sha256":"3a27cfd7ffecd9fe5bd304fe381dacd5df6302fba728ee28c08813b8e601b879"},"schema_version":"1.0","source":{"id":"1810.08395","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08395","created_at":"2026-05-18T00:02:48Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08395v1","created_at":"2026-05-18T00:02:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08395","created_at":"2026-05-18T00:02:48Z"},{"alias_kind":"pith_short_12","alias_value":"NRRES2AJW56W","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"NRRES2AJW56WNIWW","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"NRRES2AJ","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:504b99e6448b1e8a051485db7c7aa48419b5d83ffd3494d774be2745bb6fb784","target":"graph","created_at":"2026-05-18T00:02:48Z","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"},"paper":{"abstract_excerpt":"Humanoid robotics research depends on capable robot platforms, but recently developed advanced platforms are often not available to other research groups, expensive, dangerous to operate, or closed-source. The lack of available platforms forces researchers to work with smaller robots, which have less strict dynamic constraints or with simulations, which lack many real-world effects. We developed NimbRo-OP2X to address this need. At a height of 135 cm our robot is large enough to interact in a human environment. Its low weight of only 19 kg makes the operation of the robot safe and easy, as no ","authors_text":"Andr\\'e Brandenburger, Diego Rodriguez, Dmytro Pavlichenko, Grzegorz Ficht, Hafez Farazi, Mojtaba Hosseini, Philipp Allgeuer, Sven Behnke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-10-19T08:29:25Z","title":"NimbRo-OP2X: Adult-sized Open-source 3D Printed Humanoid Robot"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08395","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:e0865b3d7dd950e73172ad16172c657f196409a1dbafb40486b93701cc7f3673","target":"record","created_at":"2026-05-18T00:02:48Z","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":"8361051adbc062f809dc4dc3f3757ef8f90ea22b68d242ef879ed9dc8294f291","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-10-19T08:29:25Z","title_canon_sha256":"3a27cfd7ffecd9fe5bd304fe381dacd5df6302fba728ee28c08813b8e601b879"},"schema_version":"1.0","source":{"id":"1810.08395","kind":"arxiv","version":1}},"canonical_sha256":"6c62496809b77d66a2d626c35bc419f81e423761430188dc57f83378ea8c80f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c62496809b77d66a2d626c35bc419f81e423761430188dc57f83378ea8c80f3","first_computed_at":"2026-05-18T00:02:48.225258Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:48.225258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/Pm8KCFfvTGbmpXdUsY9Npal5UtNLujS742b3NjvrkADDmPwov7rjBnSlzebG0G4SU3blQYAdS406IbmZQLECg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:48.225743Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.08395","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0865b3d7dd950e73172ad16172c657f196409a1dbafb40486b93701cc7f3673","sha256:504b99e6448b1e8a051485db7c7aa48419b5d83ffd3494d774be2745bb6fb784"],"state_sha256":"22f215c0f1115739c37ed16b3511356e163d63989ef4c2e927172d7f03488afc"}