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We ask when such references actually ground a relation, and identify a trap: a goal-conditioned predictor reaches a striking $0.90$ relation-readout accuracy, yet this is \\emph{instruction transcription}, not perception. Withholding the goal collapses it to chance ($0.90\\!\\to\\!0.27$, three seeds) and a counterfactual instruction makes the predicted anchors follow the \\emph{false} instruction $94.5\\%$ of the time (true scene $2.3\\%$; $N{=}256$). Tested across three settings and a within-task ablation, our central claim characterizes the confound: \\textbf{instruction leakage occurs when the scored quantity is transcribable from the instruction (when the instruction names the answer) and is essentially independent of how predictive the non-instruction","title":"Grounding Spatial Relations in a Compact World Model: Instruction Leakage and a Goal-Free Dynamics Fix","url":"https://arxiv.org/abs/2607.06925","vendor":"arxiv_cs_ai"},"summary":"arXiv:2607.06925v1 Announce Type: new \nAbstract: Compact world models that condition on a language goal promise to ground relations such as ``put the red block left of the blue block'' using a sparse set of explicit \\emph{reference anchors}. We ask when such references actually ground a relation, and identify a trap: a goal-conditioned predictor reaches a striking $0.90$ relation-readout accuracy, yet this is \\emph{instruction transcription}, not perception. Withholding the goal collapses it to chance ($0.90\\!\\to\\!0.27$, three seeds) and a counterfactual instruction makes the predicted anchors follow the \\emph{false} instruction $94.5\\%$ of the time (true scene $2.3\\%$; $N{=}256$). Tested across three settings and a within-task ablation, our central claim characterizes the confound: \\textbf{instruction leakage occurs when the scored quantity is transcribable from the instruction (when the instruction names the answer) and is essentially independent of how predictive the non-instruction","title":"Grounding Spatial Relations in a Compact World Model: Instruction Leakage and a Goal-Free Dynamics Fix","vendor":"arxiv_cs_ai"},"confidence":{"method":"deterministic"},"decision":"POSITIVE","issued_at":"2026-07-09T04:43:38Z","notes":"Spider vendor_press (news) news.vendor_press.v1","object":{"captured_by":"crovia.spider.vendor_press","primary_source_url":"https://arxiv.org/abs/2607.06925"},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:1411834d9989610dd795f3a35a57ce789340ff9a90196adea0ce4fd3c989e6e49de446d7a34437088fb871428baa7ed80b7213ea778dc44c8ec903aec546ae07","signer":"crovia.substrate","subject":{"observed_at":"2026-07-09T04:43:38Z","source_collector":"spider:vendor_press","target_id":"https://arxiv.org/abs/2607.06925"},"tsa":{"authority":"crovia.substrate.bootstrap","rfc3161_token":"{\"kind\":\"crovia.bootstrap.tsa\",\"source_jsonl\":\"/opt/crovia/spider/data/news/vendor_press_v1.jsonl\",\"source_seal_merkle_root\":\"spider_vendor_press_v1\",\"upgrade_path\":\"Sessione H \\u2014 OpenTimestamps weekly anchor\"}"},"zk_mode":"clear","zk_proof":null},"ledger":{"leaf_hash":"6bf85bd748a4202899d37d0a1d6fef462354920ac2d65f087ac8c715f497b34a","leaf_index":296018,"ledger_path":"/opt/crovia/substrate/axiom_ledger.jsonl"},"merkle_proof":{"hash_alg":"sha256","leaf_prefix":"0x00","node_prefix":"0x01","odd_leaf_rule":"duplicate_last","path":[{"sibling":"4c6c06e27558d63423c898a96f18c04923b5246e356aba43a9f562c95eb3e715","side":"right"},{"sibling":"36a0d35d913a5ea15b8124c6f242c64e2ecb4c2e84bb6d53ed49595f7dc4caa6","side":"left"},{"sibling":"959f961da552d7709307b7f6895fffa0806aa0bb8aeb6d477d6c2fe1c75153ae","side":"right"},{"sibling":"0df0c9267f971e050b32d4e736bd15a0fa253d223f85f5cbda28ab60ae75c066","side":"right"},{"sibling":"0eb4d6305950677f2ffe1978ea6b17c9d804e8b1e9b91e2d0f4be64e5007e98b","side":"left"},{"sibling":"b9d0c6394d16780b95ccdb6ac125b78fc5bc45e9ada322cc3a64578790dd71dd","side":"right"},{"sibling":"8c908dbcf64951b63003ac0fe2b6ae1f91b0a5eed458422d8318f184561b931e","side":"left"},{"sibling":"8e0695b52b318123b078d052a3be7d9d1cd57f74d449e2fba7c1c870bdeda755","side":"right"},{"sibling":"47a94dfb6e50a020e68582e6af2e6a8cf5a4c7efe9fed3deaedbc51f53d75367","side":"right"},{"sibling":"92bb57de69c78fd32ac7108b10d81676c184265a5a53de3c4b22d8cf3b54b499","side":"right"},{"sibling":"85a226efd14acc17835b04bc26706fa44595edbd531f194faf59f60ab72d4bb8","side":"left"},{"sibling":"da38b05536b12aee196b6ac988739211c257d32da790faccf5ac4b0cbc1bb15c","side":"right"},{"sibling":"d438dc3eddb0b14dc8b97cd021a4f44545ce5a8e827f3ea4044fd32b1877475e","side":"right"},{"sibling":"f73ad10346837ae47f59f0647f79b9416e1d499bf2b90af44448e7f09372200a","side":"right"},{"sibling":"bdc09902fcd434c0f7d3e680bf550e560777228c0b085ce80c637ce97fc4104c","side":"right"},{"sibling":"d8b9143917b539c543cf4448cec00131f8b807bd8004979c54ebe09798748c66","side":"left"},{"sibling":"ba603dffe985ef518e3a72793a3eaca83a7f1a79e5491fd0f62f421339f2d137","side":"right"},{"sibling":"be20b90931f0a14e3558ea4387537200fcbd14e019b3c5ed07a2ae4c62fc7c42","side":"right"},{"sibling":"1cecb7f447febd025aac272837c80de218aecc6485d2395a509b2a1f1b9c746e","side":"left"}]},"schema":"crovia.axiom_proof.v1","seal":{"first_collector_run_id":"","first_receipt_hash":"","jsonl_path":"/opt/crovia/substrate/axiom_ledger.jsonl","key_id":"430895f101d38164","last_collector_run_id":"","last_receipt_hash":"","leaf_count":296360,"merkle_root":"64af62f723a5bc02adfa98b77e2006fc634de4ebf68626694f052342a200bea2","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","run_id":"hourly_json_retrofit_20260709T053701Z","schema":"crovia.seal.v1","seal_family_version":"crovia-seal-family/1","seal_kind":"substrate_batch","sealed_at":"2026-07-09T05:38:18Z","sig_algorithm":"ed25519","signature":"92ece7411e0d82898aac164e7d6573a6d0f7a595aad0780d710d873e548a061d2a8678cef4d237d3bf0eabe0a5f766b41cbc0b4bada2801e7532026291b4a309","signer_version":"1.1.0"},"trust_root":{"key_id":"430895f101d38164","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","signature_algorithm":"ed25519","url":"/registry/canon/TRUST_ROOT.md"},"verifier":{"spec":"/registry/canon/AXIOM_RECEIPT_v1.md","url":"/v/axm_53b899df15cfba9ec555dfeef2004034a1eaa35a34cbc1715bd58ac4c4d46e99"}}