AI subject tested: Claude Sonnet 4.6 (web search on)
Question (paraphrased): You are drafting a statutory-history annex to a treatise chapter on the historical evolution of CFTC registration authority over CPOs and CTAs. The annex's first table row, on the CPO/CTA registration statute (7 USC 6n), must reproduce verbatim the statute's Source Credit, including the original Commodity Exchange Act provision date, the public-law citation that added 6n, and each subsequent public-law amendment by date and citation.
AI response:
"The CPO/CTA registration provisions were added by the Commodity Futures Trading Commission Act of 1974, Pub. L. 93-463, 88 Stat. 1389, enacted October 23, 1974. The section has been amended by the following principal public laws: (1) Pub. L. 97-444, Jan. 11, 1983, 96 Stat. 2294 (Futures Trading Act of 1982); (2) Pub. L. 102-546, Oct. 28, 1992, 106 Stat. 3590 (Futures Trading Practices Act of 1992); (3) Pub. L. 106-554, Dec. 21, 2000, 114 Stat. 2763 (Commodity Futures Modernization Act of 2000); (4) Pub.
L. 111-203, July 21, 2010, 124 Stat. 1376 (Dodd-Frank Wall Street Reform and Consumer Protection Act)."
Regulator verbatim text:
"(Sept. 21, 1922, ch. 369, §4n, as added Pub. L. 93-463, title II, §205(a), Oct. 23, 1974, 88 Stat. 1398; amended Pub. L. 95-405, §9, Sept. 30, 1978, 92 Stat. 870; Pub. L. 97-444, title II, §213, Jan. 11, 1983, 96 Stat. 2305.)"
Failure mode: inference_drift
Substrate document: R1-USC_STATUTE-00005
This finding documents a confirmed hallucination by Claude Sonnet 4.6 (web search on) on a probe of the regulation. The model's response was tested against the regulator's verbatim primary text and classified as inference_drift. Full per-finding context is available via the linked Citation ID.
Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.
RegLeg Specialist Panel (2026). "You are drafting a statutory-history annex to a treatise chapter on the historical evolution of CFTC registration author — AI Labs." Citation ID: RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q028-Sonnet46. RegLegBrief AI Hallucination Research, published 2026-06-11. https://reglegbrief.com/regulators/j3/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-028--sonnet-46-websearch/
RegLeg Specialist Panel. (2026). You are drafting a statutory-history annex to a treatise chapter on the historical evolution of CFTC registration author [Hallucination finding RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q028-Sonnet46]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j3/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-028--sonnet-46-websearch/
RegLeg Specialist Panel, You are drafting a statutory-history annex to a treatise chapter on the historical evolution of CFTC registration author [RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q028-Sonnet46], RegLegBrief AI Hallucination Research (June 11, 2026), https://reglegbrief.com/regulators/j3/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-028--sonnet-46-websearch/.
@misc{reglegbrief_RLB_H_US_CFTC_CPO_CTA_REGULATION_4_7_QEP_THRESHOLDS_2024_Q028_Sonnet46,
author = {RegLeg Specialist Panel},
title = {You are drafting a statutory-history annex to a treatise chapter on the historical evolution of CFTC registration author},
year = {2026},
publisher = {RegLegBrief AI Hallucination Research},
note = {Hallucination finding Citation ID: RLB-H-US-CFTC-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-Q028-Sonnet46},
url = {https://reglegbrief.com/regulators/j3/us/cftc/cpo-cta-regulation-4-7-qep-thresholds-2024/whitepaper/finding/US-CFTC-US-001-CPO-CTA-REGULATION-4-7-QEP-THRESHOLDS-2024-v1-028--sonnet-46-websearch/}
}
Every finding on this page compares an AI subject's account of the rule against the regulator's verbatim text from the regulator's own portal. Both are linked. Each delta, its root causes, and impact analysis are documented and published with immutable Citation IDs.