Blockrise partners with Debifi as HSM-secured authorised key holder

• Blockrise takes on the role of authorised key holder within Debifi's multisig structure in the European Union.
• The partnership brings an HSM-secured into Debifi's distributed key management infrastructure.
• The announcement is made at BTC Prague 2026.

Rotterdam / Lugano 12 June 2026 - Blockrise, a Bitcoin platform supervised by the Dutch Authority for the Financial Markets (AFM) under MiCAR, and Debifi, a non-custodial Bitcoin-backed loan platform, today announced a partnership in which Blockrise takes on the role of authorised key holder within Debifi's multisig infrastructure.

Debifi is one of the leading Bitcoin-backed lending platforms, whereas their infrastructure set the standard of using a 3-of-4 multisig structure for loans. Four parties each hold a partial key: the borrower, lender, platform, and an authorised key holder in case of contingency. Three keys are required to move funds, ensuring no independent control over the collateral. Blockrise now holds the fourth key as authorised key holder, co-signing only in designated circumstances such as a borrower-lender disputes.

Blockrise operates its key within the same secure Hardware Security Module (HSM) infrastructure that powers its custody platform. Key generation, storage, and signing take place entirely within the devices, and private keys are never exposed outside the HSMs.

"I am super excited for this partnership with Debifi, which formed very naturally from the first day that we met," said Jos Lazet, Founder and CEO of Blockrise. "The hardware infrastructure and our experience with Bitcoin custody are the perfect fit for this partnership with Debifi.”

"For our clients, capital preservation is the absolute top priority. By partnering with Blockrise, a trusted key holder within our 3-of-4 multisig infrastructure, we resolve unforeseen edge cases at an institutional level. Our users retain maximum control and can sleep well at night,” said Max Kei, CEO of Debifi.

The partnership is active across the European Union. Blockrise and Debifi are announcing the partnership at BTC Prague 2026.

About Debifi

Debifi is an open source, non-custodial lending platform that allows users to unlock liquidity from their Bitcoin without selling, utilizing strict multisig security and zero rehypothecation. By providing transparent, on-chain verifiable infrastructure, Debifi empowers both risk averse borrowers and institutional lenders to interact securely on their own custom terms. Whether through robust API integrations for arbitrageurs or plug-and-play yield for regulated fintechs, Debifi delivers trust-minimized financial architecture for the entire ecosystem.

About Blockrise

Blockrise is a Bitcoin-only platform based in Rotterdam, on a mission to make bitcoin accessible without compromising what makes it valuable. Founded in 2017, it offers trading, asset management, and Bitcoin-backed loans trough Blockrise Lending BV. through a hybrid custody model that gives clients full ownership of their bitcoin. Regulated by the Dutch Authority for the Financial Markets (AFM) under MiCAR, Blockrise serves individuals and businesses across Europe. Visit www.blockrise.com.

For interview requests and more information:

Jos Lazet, Founder and CEO Blockrise j.lazet@blockrise.com +31 10 848 1741

Tony Nakamoto, Debifi, lenders@debifi.com

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