Crypto Finance, a division of Deutsche Börse Group, has officially launched Chainlink Proof of Reserve, marking a significant advancement in the transparency and security of digital asset investments. The initiative enables the first user, nxtAssets, to conduct on-chain verification of the assets held in custody by Crypto Finance for its physically backed Ethereum and Bitcoin Exchange Traded Products (ETPs).
Proof of Reserve allows investors to independently confirm the actual holdings behind an ETP, thereby introducing a new level of assurance in the digital asset market. This innovation sets a precedent for transparency and trust among investors in a sector often criticized for its opacity. The collaboration involves three key players: nxtAssets, which is responsible for issuing and managing the ETPs; Crypto Finance, which offers regulated custody of the underlying assets; and Chainlink, which supplies tamper-resistant reserve data on the blockchain.
Through the utilization of Chainlink’s decentralized oracle technology, nxtAssets will issue verifiable reserve data for Bitcoin (BTC) and Ethereum (ETH). This data is managed by the Chainlink Runtime Environment (CRE), published on Arbitrum, and is accessible to the public. Crucially, the assets held in custody are cryptographically verified without revealing sensitive wallet addresses or private data, ensuring operational security remains intact.
While traditional reporting measures provide an official End-of-Day Net Asset Value (NAV) based on Assets Under Management (AUM), the integration of Proof of Reserves allows for independent verification that the underlying assets are fully collateralized. Stijn Vander Straeten, CEO of Crypto Finance, emphasized the importance of this milestone, stating, “Proof of Reserves marks a major step in institutionalizing trust and transparency for digital assets. With Chainlink’s technology, we can provide investors with verifiable information on reserves while maintaining the highest standards of security and operational integrity.”
Dirk Hess, Managing Director of nxtAssets, highlighted how this initiative distinguishes them from other ETP providers, stating, “By adopting Chainlink Proof of Reserves, we are enhancing transparency for end investors and providing greater visibility to regulators, auditors, and the broader market.” He noted that transparency is essential for fostering responsible growth in digital asset investments.
Fernando Vazquez, President of Banking and Capital Markets at Chainlink Labs, added that continuous verifiable data is crucial for establishing trust in digital asset markets. He remarked that the integration of Chainlink Proof of Reserves not only strengthens investor confidence but also sets a new benchmark for accountability in the global ETP market, starting with two of nxtAssets’ ETPs, with plans for further offerings.
The benefits of this integration are multifaceted, providing enhanced transparency relative to traditional reporting methods, improving security through anonymized reserve verification, and enabling access to historical data whenever needed. These advancements streamline reporting and amplify credibility with institutional investors, reinforcing a strong commitment to regulatory compliance and investor protection.
With this innovative collaboration, Crypto Finance, Chainlink, and nxtAssets have established a new standard for transparency and accountability in the digital asset ETP realm.
nxtAssets, known for issuing physically backed crypto ETPs, aims to make cryptocurrency investments as accessible as traditional securities. Their mission is supported by an alliance of leading financial institutions and industry experts, including significant players like Commerzbank AG and Interactive Brokers, which brings robust custody standards and market expertise to the initiative.
Chainlink stands as the industry-standard oracle platform that integrates capital markets with blockchain technology, powering a large share of decentralized finance (DeFi). The platform’s capabilities enable advanced use cases for institutional tokenized assets, lending, payments, and stablecoins, facilitating trillions in transaction value.
On the other hand, Crypto Finance Group focuses on delivering professional digital asset solutions to institutional and professional clients. The group operates under regulatory oversight in Switzerland and Germany, with Crypto Finance AG recognized as a SIX-approved crypto custodian for ETP issuers.


