{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:I6EHRYTQVQPD235624XCKY5TGO","short_pith_number":"pith:I6EHRYTQ","canonical_record":{"source":{"id":"2608.05799","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-08-06T09:35:33Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"d4fd4c1c826892c8da63cdc534a14de701ffd0e714c39aaecb4dbd02b22d0050","abstract_canon_sha256":"3aaf3ab70bf15373f69eaf5b25c9b48c08380a05a2b183af57703e3887fa5899"},"schema_version":"1.0"},"canonical_sha256":"478878e270ac1e3d6fbed72e2563b333a71862ec6312c0415f5e20da3fe877ec","source":{"kind":"arxiv","id":"2608.05799","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.05799","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"2608.05799v1","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.05799","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"I6EHRYTQVQPD","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_16","alias_value":"I6EHRYTQVQPD2356","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_8","alias_value":"I6EHRYTQ","created_at":"2026-08-07T00:52:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:I6EHRYTQVQPD235624XCKY5TGO","target":"record","payload":{"canonical_record":{"source":{"id":"2608.05799","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-08-06T09:35:33Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"d4fd4c1c826892c8da63cdc534a14de701ffd0e714c39aaecb4dbd02b22d0050","abstract_canon_sha256":"3aaf3ab70bf15373f69eaf5b25c9b48c08380a05a2b183af57703e3887fa5899"},"schema_version":"1.0"},"canonical_sha256":"478878e270ac1e3d6fbed72e2563b333a71862ec6312c0415f5e20da3fe877ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-07T00:52:46.614182Z","signature_b64":"4gBENNKWLvWJrQT3ADDVVkUK4vhfBdjf5v3vdkVluDAhCT40apKiCaj4T+SG30SsLo86EKGPSkVcP4ViBzAiCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"478878e270ac1e3d6fbed72e2563b333a71862ec6312c0415f5e20da3fe877ec","last_reissued_at":"2026-08-07T00:52:46.612771Z","signature_status":"signed_v1","first_computed_at":"2026-08-07T00:52:46.612771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.05799","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-07T00:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t1cs545IRLjBjMPFzkt1ocQ+OFbMiVxty91RiaMzAGBLnMjIM/1H0Wc2vtxJvWB3/AeT6oN7UR1ApeAFQrflBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T15:38:58.177632Z"},"content_sha256":"4bbbf7ba1869e116e771a2d80ae6711dd9e2b61ceb0b03a20b61383a7ea290a7","schema_version":"1.0","event_id":"sha256:4bbbf7ba1869e116e771a2d80ae6711dd9e2b61ceb0b03a20b61383a7ea290a7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:I6EHRYTQVQPD235624XCKY5TGO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"XEWorld: Can Action-Conditioned World Models Generalize to Unseen Robot Embodiments?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"cs.RO","authors_text":"Jiabing Yang, Jing Liu, Kai Wang, Keji He, Liang Wang, Nianfeng Liu, Peiyan Li, Qisen Ma, Xiangnan Wu, Yan Huang, Yixiang Chen, Yuan Xu, Ziheng He","submitted_at":"2026-08-06T09:35:33Z","abstract_excerpt":"Action-conditioned world models are promising learned simulators for robotic manipulation, yet evaluating them exclusively on training robots fails to reveal whether they capture physical dynamics or merely memorize visual patterns. To answer whether a model can faithfully render a robot it has never seen, we introduce XEWorld, a controlled cross-embodiment testbed for world models that isolates embodiments by evaluating held-out robots within physically identical scenes. Our systematic analysis uncovers a shared architectural bottleneck: current models act primarily as 2D visual pattern match"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.05799","kind":"arxiv","version":1},"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/2608.05799/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":"2026-08-07T00:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xzYgUb4sAo1tzMYsCyTDw2B9Vnx18jxuhWT03Fkj+07ygpkYvnN4fPlEtDUeAF5CTS0JvDNJmXaKmmb3JoBsBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T15:38:58.178492Z"},"content_sha256":"2cd61ac16e2cc1c42d3708694152a44de827e9668bc6cb63d1c885b42a453cc1","schema_version":"1.0","event_id":"sha256:2cd61ac16e2cc1c42d3708694152a44de827e9668bc6cb63d1c885b42a453cc1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I6EHRYTQVQPD235624XCKY5TGO/bundle.json","state_url":"https://pith.science/pith/I6EHRYTQVQPD235624XCKY5TGO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I6EHRYTQVQPD235624XCKY5TGO/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":"2026-08-10T15:38:58Z","links":{"resolver":"https://pith.science/pith/I6EHRYTQVQPD235624XCKY5TGO","bundle":"https://pith.science/pith/I6EHRYTQVQPD235624XCKY5TGO/bundle.json","state":"https://pith.science/pith/I6EHRYTQVQPD235624XCKY5TGO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I6EHRYTQVQPD235624XCKY5TGO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:I6EHRYTQVQPD235624XCKY5TGO","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":"3aaf3ab70bf15373f69eaf5b25c9b48c08380a05a2b183af57703e3887fa5899","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-08-06T09:35:33Z","title_canon_sha256":"d4fd4c1c826892c8da63cdc534a14de701ffd0e714c39aaecb4dbd02b22d0050"},"schema_version":"1.0","source":{"id":"2608.05799","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.05799","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"2608.05799v1","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.05799","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"I6EHRYTQVQPD","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_16","alias_value":"I6EHRYTQVQPD2356","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_8","alias_value":"I6EHRYTQ","created_at":"2026-08-07T00:52:46Z"}],"graph_snapshots":[{"event_id":"sha256:2cd61ac16e2cc1c42d3708694152a44de827e9668bc6cb63d1c885b42a453cc1","target":"graph","created_at":"2026-08-07T00:52:46Z","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/2608.05799/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Action-conditioned world models are promising learned simulators for robotic manipulation, yet evaluating them exclusively on training robots fails to reveal whether they capture physical dynamics or merely memorize visual patterns. To answer whether a model can faithfully render a robot it has never seen, we introduce XEWorld, a controlled cross-embodiment testbed for world models that isolates embodiments by evaluating held-out robots within physically identical scenes. Our systematic analysis uncovers a shared architectural bottleneck: current models act primarily as 2D visual pattern match","authors_text":"Jiabing Yang, Jing Liu, Kai Wang, Keji He, Liang Wang, Nianfeng Liu, Peiyan Li, Qisen Ma, Xiangnan Wu, Yan Huang, Yixiang Chen, Yuan Xu, Ziheng He","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-08-06T09:35:33Z","title":"XEWorld: Can Action-Conditioned World Models Generalize to Unseen Robot Embodiments?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.05799","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":"sha256:4bbbf7ba1869e116e771a2d80ae6711dd9e2b61ceb0b03a20b61383a7ea290a7","target":"record","created_at":"2026-08-07T00:52:46Z","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":"3aaf3ab70bf15373f69eaf5b25c9b48c08380a05a2b183af57703e3887fa5899","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-08-06T09:35:33Z","title_canon_sha256":"d4fd4c1c826892c8da63cdc534a14de701ffd0e714c39aaecb4dbd02b22d0050"},"schema_version":"1.0","source":{"id":"2608.05799","kind":"arxiv","version":1}},"canonical_sha256":"478878e270ac1e3d6fbed72e2563b333a71862ec6312c0415f5e20da3fe877ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"478878e270ac1e3d6fbed72e2563b333a71862ec6312c0415f5e20da3fe877ec","first_computed_at":"2026-08-07T00:52:46.612771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-07T00:52:46.612771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4gBENNKWLvWJrQT3ADDVVkUK4vhfBdjf5v3vdkVluDAhCT40apKiCaj4T+SG30SsLo86EKGPSkVcP4ViBzAiCQ==","signature_status":"signed_v1","signed_at":"2026-08-07T00:52:46.614182Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.05799","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bbbf7ba1869e116e771a2d80ae6711dd9e2b61ceb0b03a20b61383a7ea290a7","sha256:2cd61ac16e2cc1c42d3708694152a44de827e9668bc6cb63d1c885b42a453cc1"],"state_sha256":"ac7bc807acfe43ad8a91125743c36f0cd9b4ecbe65be71aa0e91f2ff042d9c08"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z3qZcb7hLN9EI3bfhGw0KgkqdQ27XQ0kqnlWH8d8MEIJ5aG2cKF+upZNorw8xMOFdQOl2VXCHDVn4a1w0e+nCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T15:38:58.185368Z","bundle_sha256":"008f57d91630a7318e131dfd78490e824d2206b783a632444faad37ccb0a82b0"}}