{"_canonicalization":{"envelope_id":"axm_ + sha256(envelope minus {signature, axiom_id, anchors})","envelope_signature":"ed25519(envelope minus {signature, axiom_id})","json":"sort_keys=True, separators=(',',':'), ensure_ascii=False, allow_nan=False, utf-8","leaf_hash":"sha256(0x00 || canonical_json(envelope_full))","seal_signature":"ed25519(seal minus {signature, sig_algorithm})"},"axiom_id":"axm_b6a3e04e17cff2fa97836903fcb99e99355b26f8ce60f02100d86ea167939835","bitcoin_anchor":{"bitcoin_attestations":[],"calendar_attestations":[],"ots_url":"","stamped_at":"","status":"pending_next_stamp"},"envelope":{"anchors":[{"chain":"crovia.axiom_graph","height":0,"merkle_proof":"spider_vendor_press_v1","root_at_anchor":"spider_vendor_press_v1"}],"axiom_id":"axm_b6a3e04e17cff2fa97836903fcb99e99355b26f8ce60f02100d86ea167939835","axiom_type":"AX.OBS","body":{"axiom_subtype":"news.vendor_press.v1","category":"news","fingerprint":"a32f04cd76bcfe0f60131b010208b1eb484a4b6d4c41f12e4d9fd9f20c590073","published":"Fri, 19 Jun 2026 00:00:00 -0400","receipt_hash":"a32f04cd76bcfe0f60131b010208b1eb484a4b6d4c41f12e4d9fd9f20c590073","schema":"spider.news.vendor_press.v1","spider":"vendor_press","spider_record":{"axiom_subtype":"news.vendor_press.v1","category":"news","decision_hint":"POSITIVE","envelope_target":"AX.OBS","fingerprint":"a32f04cd76bcfe0f60131b010208b1eb484a4b6d4c41f12e4d9fd9f20c590073","observed_at":"2026-06-19T04:43:39.497162Z","parent_run_hash":"942f204649bd8fb7e5f3ac68f64dc64a5a02624b49ac200c0f629f6ff3a211f3","published":"Fri, 19 Jun 2026 00:00:00 -0400","runtime_version":"0.1.0","schema":"spider.news.vendor_press.v1","source_status":200,"source_url":"https://export.arxiv.org/rss/cs.AI","spider":"vendor_press","summary_excerpt":"arXiv:2606.19808v1 Announce Type: new \nAbstract: Test-time reasoning is increasingly used as a serving-time control knob, but extra reasoning is not uniformly valuable: it can repair failed attempts, waste compute on already-correct answers, or introduce harmful answer changes. We study this as a deployment allocation problem rather than a new-verifier problem. We introduce \\sevra, Selective Verification for Reasoning Allocation, a serving-layer controller that decides whether to preserve a frozen solver's initial answer or invoke active verification. Using a frozen Qwen3-4B solver, we log intervention outcomes and train recoverability-aware gates from serving-visible attempt state. On \\mathfive, selective verification reaches 76.3\\% accuracy, compared with 75.5\\% for always verifying, while reducing post-generation tokens by 26.8\\% and harmful flips from 2.2\\% to 1.0\\%. However, an 8,192-token initial solve reaches 76.0\\% accuracy with 28\\% fewer total model tokens, showing that selec","title":"Think Again or Think Longer? Selective Verification for Budget-Aware Reasoning","url":"https://arxiv.org/abs/2606.19808","vendor":"arxiv_cs_ai"},"summary":"arXiv:2606.19808v1 Announce Type: new \nAbstract: Test-time reasoning is increasingly used as a serving-time control knob, but extra reasoning is not uniformly valuable: it can repair failed attempts, waste compute on already-correct answers, or introduce harmful answer changes. We study this as a deployment allocation problem rather than a new-verifier problem. We introduce \\sevra, Selective Verification for Reasoning Allocation, a serving-layer controller that decides whether to preserve a frozen solver's initial answer or invoke active verification. Using a frozen Qwen3-4B solver, we log intervention outcomes and train recoverability-aware gates from serving-visible attempt state. On \\mathfive, selective verification reaches 76.3\\% accuracy, compared with 75.5\\% for always verifying, while reducing post-generation tokens by 26.8\\% and harmful flips from 2.2\\% to 1.0\\%. However, an 8,192-token initial solve reaches 76.0\\% accuracy with 28\\% fewer total model tokens, showing that selec","title":"Think Again or Think Longer? Selective Verification for Budget-Aware Reasoning","vendor":"arxiv_cs_ai"},"confidence":{"method":"deterministic"},"decision":"POSITIVE","issued_at":"2026-06-19T04:43:39Z","notes":"Spider vendor_press (news) news.vendor_press.v1","object":{"captured_by":"crovia.spider.vendor_press","primary_source_url":"https://arxiv.org/abs/2606.19808"},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:e1071c6568eb2fe2b988da900afafa199e2800409eec8a3c3f817aafd85f5e292dda86e9db0596b63477a953166296af33b71bd210c38e7f75d925d22473820a","signer":"crovia.substrate","subject":{"observed_at":"2026-06-19T04:43:39Z","source_collector":"spider:vendor_press","target_id":"https://arxiv.org/abs/2606.19808"},"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":"e2566a1940a89e652e042b96d35ca6469acc626c816c8a5b5e73e4fb6027753e","leaf_index":235485,"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":"54bb6235a49271774d87d16ed8c5e2c9f5bd3c2eaf55cf13044f70db008f6869","side":"left"},{"sibling":"a674113760baf7a7c7bd882a65e1370693f49fcfc239402c1cc06e1cdd201cf5","side":"right"},{"sibling":"ba85b63aca50210b25bb7338406a78d75d1368d0d2114b6065f7bc79b11dc2a2","side":"left"},{"sibling":"c9614e6ccc59e273dd7ee33a0abad3ae58c9a43b26b71a2e580fb017eb9f4193","side":"left"},{"sibling":"2508e3a114bb5ba4b2103300fcba8bdadc88708dcf642db0fcf3d64968d4d072","side":"left"},{"sibling":"bcc64a96b2351ef6571992656cd86c436090f98a58edd222113a9eab3bbe6e32","side":"right"},{"sibling":"696ac6bcf68966ee959b35539f0bed60b3216ccb53620defd29feb8dbcb2ac30","side":"left"},{"sibling":"95ba45f2fea2d822bc863962b7e478ea50086827d90fab88c0da065d454d7ac5","side":"left"},{"sibling":"00f27f149ddd2eb0d2cf60eaed9e1d55c662cf1cf69c95fbea03bba9d35f90c7","side":"left"},{"sibling":"797e0feb6bf826a55956c876711cd24824818c5a84a591f8cc06b95577b3405d","side":"left"},{"sibling":"f049d6e86b410f6f63921a6e3aa684efffa398fd23eed28245c43b156d404c5f","side":"left"},{"sibling":"9ec7f4f84de7e2057a02ac55686567b21acfd5beaecc7a84e9e48f3db17296c2","side":"right"},{"sibling":"410c633928fea11c5b4bdddb431956b1d7c320db9cda00d2fe32e0fcf888d7b7","side":"left"},{"sibling":"b52a771530dd1686bca49e42088898b86da94879579cd6a995c6ab0598a665fe","side":"right"},{"sibling":"a116bb92f9b0350491155b470acc86d006c33ec558759e49e56614a54c39f242","side":"right"},{"sibling":"a04392fb9f2a3a620840e3b3fecd93d12e6d224e481c162389d8ae64e7194599","side":"left"},{"sibling":"c300cf0154c136afc09b1702a0be98f4ba5b6dc5cf57e8cc714ec1eaf4196eff","side":"left"},{"sibling":"d841ad93efda0869e5eb97678f348f03f5caab4353e05ff4bf18f47fb945b822","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":241122,"merkle_root":"7a906c6a26ff6c6feabc2feaba6a1a70c515e6fd72a38c779293b0f78ff291c4","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","run_id":"hourly_json_retrofit_20260622T183701Z","schema":"crovia.seal.v1","seal_family_version":"crovia-seal-family/1","seal_kind":"substrate_batch","sealed_at":"2026-06-23T06:25:25Z","sig_algorithm":"ed25519","signature":"5576b1d56d5dbb0d96c780fa3ca0940d805c8de95c6251bc87297f0be058aa5e37eb53a6aa1b601381f489f093842cf674b28737ed8e46ce3a49814b5e57290c","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_b6a3e04e17cff2fa97836903fcb99e99355b26f8ce60f02100d86ea167939835"}}