NBX and BlockSign Announce Strategic Cooperation to Deliver Institutional-Grade Digital Asset Governance and Custody Solution

18 Dec 2025 15:20 CET

OSLO/DÜSSELDORF – 18 December 2025 – Norwegian Block Exchange ASA (NBX) and
Docufi3d UG, trading as BlockSign, today announced the signing of a Memorandum
of Understanding (MoU) to explore a strategic cooperation aimed at creating a
significantly more cost-effective institutional-grade solution for digital asset
treasury management.

The intended cooperation seeks to combine BlockSign’s platform for policy-driven
governance, multi-party approvals, and operations with NBX’s regulated service
capabilities, including institutional custody, fiat on-/off-ramping, and
stablecoin-related services.

This strategic alignment is designed to address the market need for professional
governance in the digital asset space, allowing organizations to choose between
a non-custodial operating model and an optional third-party custody model
powered by NBX. A core objective is the creation of audit-ready reporting
outputs that support internal controls, oversight, and compliance, starting with
an initial focus on Cardano- and Bitcoin-related treasury workflows.

Tim Brückmann, Founder & COO of BlockSign.io stated: "This intended partnership
represents a powerful synergy. BlockSign’s strength is in policy enforcement,
workflow orchestration, and creating an undeniable audit trail. Coupling this
with NBX’s regulated infrastructure provides a complete, compliant, and robust
solution for any regulated business or institution managing digital assets."

The Parties intend to pursue a fast execution approach, targeting an initial
pilot of the integrated solution as early as Q1 2026, subject to compliance
approvals and the execution of Definitive Agreements.

About Norwegian Block Exchange (NBX)
Norwegian Block Exchange ASA (NBX) operates services in the digital asset
domain, providing regulated custody and transaction services subject to
applicable laws and regulatory requirements.

About BlockSign (Docufi3d UG)
docufi3d UG is the developer behind BlockSign, a German digital trust and asset
infrastructure provider. The company focuses on two main products:

BlockSign eSign (eSignature Platform): An enterprise-grade solution for
electronic signatures and document workflows. It supports eIDAS-compliant
signatures (including qualified electronic signatures via QTSP partners),
provides full audit trails and timestamps, and offers role-based access control
and GDPR-compliant handling of documents. It is designed for regulated
organisations, family offices and SMEs.

BlockSign Asset (Digital Asset Operation Platform): A Digital Asset Operation
Platform for Cardano, Bitcoin, Midnight and EVM that brings institutional
governance to crypto holdings. Depending on the client’s preferences, assets can
be managed either via non-custodial wallets or via NBX as an integrated
third-party custodial partner. Features include multi-user and multi-signature
wallets, role-, policy- and limit-based approvals, structured workflows, and
audit-ready reporting, as well as controlled access to DeFi use cases such as
lending, staking and liquidity provision under clear compliance and risk
parameters.

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