Language:

To the BSI, the BMDS
and the European Commission

Institutional Trust Infrastructure — what Europe needs now, and why the infrastructure for it already exists.

DOI: 10.5281/zenodo.20562673 Serverless Edition™ v1.1.0 June 2026
DOWNLOAD LETTER · CRYPTOGRAPHICALLY ARCHIVED
To:Federal Office for Information Security (BSI)
To:Federal Ministry for Digital Transformation and Government Modernisation (BMDS)
To:European Commission — DG CONNECT and DG FISMA
cc:ENISA, BaFin, Deutsche Bundesbank, ECB, Bundesnetzagentur
PublishedLinkedIn — June 2026
VersionServerless Edition™ v1.1.0
HISTORICAL DOCUMENT / CURRENT CLAIM NOTICE
This open letter documents an earlier public system and policy position. Architecture terminology, gate counts, assurance language and legal-effect statements in the original version may no longer represent the current immo.quick architecture or public claim standard. Current architecture is governed by the extensible Gate Catalog, Execution Rights™ model and current Claim Hygiene Standard. Where this historical text conflicts with current architecture pages, the current architecture pages control.

We are writing this letter publicly because the matter is too important for closed-door conversations.

Europe is at a turning point that does not resolve itself through further waiting. The laws are in force. The deadlines are real. The first fines are being issued. But the infrastructure that would actually allow financial institutions, government bodies, PropTech platforms, and the European Mittelstand to comply with these regulations in a technically demonstrable, legally defensible, and sovereignty-preserving way does not yet exist as a recognized standard.

We built it. And we are asking the institutions addressed here to examine it, certify it, and ultimately establish it as the binding benchmark.

This letter is not a product pitch. It is a technical and legal argument for a new infrastructure category that we call Institutional Trust Infrastructure.

Part I
The Problem That Nobody States Clearly Enough

The Digital Operational Resilience Act. NIS2. The EU AI Act. GDPR. AMLD6. PSD3. DORA Article 17. The German Anti-Money Laundering Act. The new German AI Implementation Act, which assigns the BSI and the Federal Network Agency explicit central roles in the market surveillance of high-risk AI systems.

Every single one of these frameworks demands the same thing: technically verifiable proof that compliance occurred at the exact moment a regulated action was taken.

Not a report written three weeks later. Not a policy document. Not a screenshot. Technically verifiable, cryptographically immutable, time-anchored proof.

The availability and quality of such historical evidence varies materially by institution and cannot be responsibly reduced to a universal percentage without a defined empirical basis.

The regulations are in force. Enforcement has begun. The infrastructure is missing.

Part II
The Illusion of Digital Sovereignty

Let us talk about something that remains consistently too vague in the political debate.

Digital sovereignty requires technical controls in addition to contractual and organisational commitments.

The US CLOUD Act of 2018 grants US law enforcement agencies the authority to compel US technology companies to produce data, regardless of where that data physically resides. Contractual commitments about data sovereignty are exactly that: contractual commitments. The CLOUD Act is a federal statute. When the two conflict, the statute wins.

This also applies to offerings like STACKIT, the cloud service of the Schwarz Group, which positions itself as a dedicated European alternative. STACKIT is a serious and meaningful step in the right direction. But even here the principle holds: sovereignty over data is only complete when the cryptographic keys reside exclusively with the customer and are not reconstructible by the provider.

Zero Key Custody is one technical control designed to reduce provider access to customer-controlled cryptographic keys; it does not by itself establish legal sovereignty or immunity.

In the immo.quick architecture, cryptographic signing keys never leave the customer's own infrastructure. They are split using 2-of-3 Shamir Secret Sharing across three geographically separated EU locations. There is nothing to hand over. The keys simply do not exist on infrastructure subject to CLOUD Act jurisdiction.

This is a technical control claim with a defined cryptographic scope, not a claim of legal immunity.

Part III
The New BSI Mandate and Why Our Architecture Delivers Exactly What Was Ordered

The AI Implementation Act assigns the BSI an explicit role in the market surveillance of high-risk AI systems.

Here is a direct opening, and we intend to address it head-on.

The immo.quick architecture separates probabilistic assistance from execution-relevant authorization. Deterministic domain logic is applied within the currently encoded and governed rule scope. The current architecture uses an extensible Gate Catalog rather than a fixed rule or gate count, and deterministic reproducibility does not imply infallibility or complete legal coverage.

But the system creates precisely what the BSI's new oversight mandate structurally requires: the evidentiary substrate on which supervision can actually be technically grounded.

Part IV
What a Receipt Is — and Why It Still Holds Up in Court Thirty Years From Now

Since this concept forms the foundation of all our arguments, we want to explain it without technical jargon.

The seven-stage sequence shown below is retained as a historical illustration of an earlier system model. It is not the current Serverless™ architecture. The current model separates domain determinations from Execution Rights™, capability issuance, execution and evidence.

RECEIPT: SLE-2026-00003847 TIMESTAMP: 400000006849a1c3 (TAI64N) ENTITY: Deutsche Industrieholding GmbH LEI: 5299001XXXXXXXXXXXXXX (GLEIF verified) GATE_1: PASS — LEI active, entity registered GATE_2: PASS — no sanctions match (EU/OFAC/UN) GATE_3: WARN — GwG §10 EDD triggered GATE_4: HISTORICAL EXAMPLE · NOT CURRENT ARCHITECTURE GATE_5: DUAL_APPROVAL: not required (< 0.70) GATE_6: WITNESS_HASH: a3f7c9d2... GATE_7: ISSUED · PROCESSING_TIME: 41ms HMAC_SHA256: c7f3a19b8e2d4061... RULE_VERSION_HASH: 8b2d14f1...

This Receipt can be verified by anyone, anywhere, at any time, without access to our infrastructure, without an internet connection, without immo.quick existing as a company. A Receipt issued in 2026 is mathematically verifiable in 2036, 2046, 2056. Not because we promise to keep the servers running. Because the mathematics does not expire.

Parts V – X
Public Data Proof · Post-Quantum · Exculpation · Mittelstand · Geopolitics · Standardization

The threat model "harvest now, decrypt later" makes CRYSTALS-Kyber and CRYSTALS-Dilithium (NIST FIPS 203/204) a necessity today — not in seven years. We integrate both in parallel with the classical HMAC-SHA256 chain.

A Receipt is technical evidence, not exculpation. It can preserve the system state, inputs, determinations and cryptographic bindings captured for a defined event. Its legal and evidentiary effect remains subject to the relevant regulator, court and case-specific assessment.

Economic effects depend on transaction volume, integration scope, external advisory needs and institutional operating model. Any cost or savings comparison should therefore be treated as an illustrative model unless supported by a defined, current commercial calculation.

Here we address a structural point that is rarely spoken openly: DORA enforcement began in January 2025. Institutions are being examined today, against standards that are not grounded in a reference technical infrastructure that actually exists.

What We Are Asking For

From the BSI
Examine our architecture as a reference implementation for the evidentiary requirements of the new AI oversight mandate. Establish Zero Key Custody and post-quantum hybrid signatures as mandatory requirements for regulated compliance infrastructure. Accelerate the standardization process using real production systems as the foundation.
From the BMDS
Recognize Institutional Trust Infrastructure as a distinct and strategically significant category in Germany's digital infrastructure strategy. Address the compliance cost asymmetry between large institutions and the Mittelstand as a market failure that regulation must correct, not deepen.
From the EU Commission
Declare CLOUD Act risk a formal compliance consideration under DORA and NIS2. Mandate Zero Key Custody for compliance data of critical infrastructure operators. Set a timeline for post-quantum readiness that creates urgency without creating panic.
The Alternative

The documentation vacuum will be filled by a new generation of AI-generated compliance reports that are sophisticated, plausible, and technically unverifiable. Regulators will not be able to distinguish them from genuine contemporaneous records. Enforcement will become theater. And European digital sovereignty will remain a phrase in policy documents while the actual infrastructure on which European regulated data depends sits in data centers subject to the legal jurisdiction of a foreign power. We have built the alternative. The Receipts are real and mathematically permanent.

immo.quick Global
Hattingen, Germany
Rami Cherri, Founder & CEO
PublishedLinkedIn — immo.quick Global — June 2026 VersionServerless Edition™ v1.1.0 DOI10.5281/zenodo.20562673 Contactaccess@immoquick.eu · www.immoquick.eu

This letter is published openly on LinkedIn to invite public technical and legal scrutiny. We welcome responses from the institutions addressed, from independent researchers, from competing infrastructure providers, and from the regulated institutions that will ultimately bear the consequences of the decisions described here.

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