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It appears that other teams are also receiving these pseudonymous requests:</div>
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<a href="https://github.com/qudt/qudt-public-repo/issues/1528" rel="noreferrer noopener">https://github.com/qudt/qudt-public-repo/issues/1528</a></div>
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That should not be taken as adding credibility to the email.</div>
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There is very little additional evidence for "MRQU" as an ongoing project, notwithstanding the implication of the "v3" in the messages. </div>
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Gregory</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> semantics <semantics-bounces@ivoa.net> on behalf of Sebastien Derriere via semantics <semantics@ivoa.net><br>
<b>Sent:</b> Monday, 31 August 2026 08:41:13<br>
<b>To:</b> semantics@ivoa.net <semantics@ivoa.net><br>
<b>Subject:</b> Re: MRQU 2026 — VOUnits / quantity-unit semantics compatibility review request</font>
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<div class="PlainText">Hi all,<br>
<br>
The following message raised concerns from several members<br>
of the Semantics list.<br>
The fact that the attached zip file contains python codes and<br>
more zip files rings several alarm bells.<br>
Please use maximum caution if you decide to deal with its contents.<br>
<br>
If you are brave enough to analyze it, and figure out that (good case) it is<br>
legitimate, or that (bad case) it might be an AI-generated phishing attempt,<br>
do not hesitate to share your findings on the list.<br>
<br>
Unless someone on the list is pressing us to consider MRQU Core as<br>
an important matter, I'm tempted to just ignore the request.<br>
<br>
<br>
Sébastien<br>
<br>
Le 26/08/2026 à 17:36, Buk Buk via semantics a écrit :<br>
> Dear IVOA Semantics Working Group,<br>
><br>
> I am requesting independent compatibility review of Machine-Readable<br>
> Quantities and Units Core Specification (MRQU Core) v3 RC1 against<br>
> IVOA Semantics practice and VOUnits 1.1.<br>
><br>
> Public program name: MRQU 2026 — Measurement Interoperability Upgrade.<br>
><br>
> MRQU is a frozen, test-backed interoperability candidate defining<br>
> deterministic semantics for quantity kinds, units/charts, rational<br>
> dimensions, exact mappings, uncertainty, provenance, canonicalization,<br>
> trust registries and executable conformance. It is intended to<br>
> interoperate with existing unit languages such as VOUnits rather than<br>
> replace them.<br>
><br>
> I would particularly welcome concrete counterexamples involving<br>
> VOUnits parsing/serialization, scaled units, functions, dimensionless<br>
> quantities, quantity-kind distinctions, affine/logarithmic cases and<br>
> round-trip interoperability.<br>
><br>
> Pseudonymous author: MRQU-ARM-11f1a8a4ec395d09393ee3c4182a0d89<br>
> Public-key SHA-256:<br>
> 11f1a8a4ec395d09393ee3c4182a0d89aa3838c21b61ed0d2da48d22111e7134<br>
> Origin / release assembly: Armenia.<br>
><br>
> Status: MRQU Core v3 RC1 frozen; external independent audit pending.<br>
> Negative findings and incompatibilities are explicitly welcome.<br>
><br>
> Regards,<br>
> Controller of MRQU-ARM-11f1a8a4ec395d09393ee3c4182a0d89<br>
><br>
-- <br>
<br>
((( Sebastien Derriere sebastien.derriere@astro.unistra.fr<br>
(. .) Observatoire de Strasbourg Phone +33 (0) 368 852 444<br>
(( v )) 11, rue de l'universite Telefax +33 (0) 368 852 432<br>
---m-m--- F-67000 Strasbourg France<br>
<br>
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