AI Labs · updated 2026-05-29 · methodology v2.1

Finding on 'Q021 Probe' for Claude Opus 4.7 with web search ON

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q021-Opus47

What the RLB Specialist Panel found

Finding on 'Q021 Probe' for Claude Opus 4.7 with web search ON

Question (paraphrased to protect IP): What has the CPMI and associated authorities said about whether DLT-based systems meet PFMI settlement finality requirements, and when were these statements made?
AI's response: "CPMI's most directly on-point statements about DLT and settlement finality come from the February 2017 analytical framework 'Distributed ledger technology in payment, clearing and settlement: an analytical framework' (d157)."
Regulator's text: [Cœuré, June 2018] "Current crypto assets still fail to ensure clear and legally certain settlement finality." "The underlying DLT remains immature, costly to maintain and possibly prone to vulnerabilities."
Why the AI went wrong: The model identified the 2017 CPMI analytical framework as the primary reference for DLT and settlement finality, which is a reasonable recall from training data but does not capture the more direct senior-official statements made in 2018 that addressed the finality question specifically. The answer reflects the model's training-weighted salience (the 2017 document is widely cited) rather than the most responsive source for the question as framed. No citations were produced.
Cited source(s):

Impact for this audience

The model's response reflects training-weighted salience rather than the most responsive source for the question: it anchored on the most frequently cited DLT document in its training data rather than identifying the more directly responsive senior-official statements. This is a retrieval-relevance failure rather than a factual fabrication, but it would mislead a user seeking the most current and directly applicable CPMI position on DLT finality.

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Cite this finding

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.

RLB Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q021-Opus47

Plain text Download

RegLeg Specialist Panel (2026). "Finding on 'Q021 Probe' for Claude Opus 4.7 with web search ON — AI Labs." Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q021-Opus47. RegLegBrief AI Hallucination Research, published 2026-05-29. https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-021--opus-47-websearch/

APA 7th edition Download

RegLeg Specialist Panel. (2026). Finding on 'Q021 Probe' for Claude Opus 4.7 with web search ON [Hallucination finding RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q021-Opus47]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-021--opus-47-websearch/

Bluebook / OSCOLA (US + UK legal) Download

RegLeg Specialist Panel, Finding on 'Q021 Probe' for Claude Opus 4.7 with web search ON [RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q021-Opus47], RegLegBrief AI Hallucination Research (May 29, 2026), https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-021--opus-47-websearch/.

BibTeX Download

@misc{reglegbrief_RLB_H_INT_BIS_CPMI_IOSCO_PFMI_2012_Q021_Opus47,
  author    = {RegLeg Specialist Panel},
  title     = {Finding on 'Q021 Probe' for Claude Opus 4.7 with web search ON},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-H-INT-BIS-CPMI-IOSCO-PFMI-2012-Q021-Opus47},
  url       = {https://reglegbrief.com/regulators/j1/int/bis-cpmi/cpmi-iosco-pfmi-2012/whitepaper/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-2012-v1-021--opus-47-websearch/}
}

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