BlackRock Adds Chronicle to Verify Tokenized BUIDL

TLDR

• BlackRock has integrated Chronicle’s Proof of Asset system for its tokenized BUIDL fund.
• The system provides independently verified holdings-level data through an onchain dashboard.
• The tokenized BUIDL fund manages about $1.7 billion in U.S. Treasuries, repos, and cash.
• Securitize issues and manage the BlackRock USD Institutional Digital Liquidity Fund onchain.
• Chronicle sources data directly from custodians and administrators to verify asset composition.

BlackRock has integrated Chronicle as a verification provider for its tokenized BUIDL fund. The firm will use Chronicle’s Proof of Asset system to publish independently verified holdings data. The update strengthens transparency for the $1.7 billion onchain U.S. Treasuries vehicle.

BlackRock and Tokenized BUIDL Add Independent Asset Verification

BlackRock confirmed that its BlackRock USD Institutional Digital Liquidity Fund will use Chronicle’s Proof of Asset system. The system delivers independently verified holdings-level data for the tokenized BUIDL fund. It continuously attests to asset availability, freshness, and integrity through the Chronicle dashboard.

Securitize issues and manages the tokenized BUIDL fund onchain. Carlos Domingo, CEO of Securitize, said, “Tokenization becomes meaningful when investors and protocols can independently verify what’s actually backing the product.” He added that Chronicle’s support shows tokenized funds are evolving into transparent, data-driven instruments for institutions and global markets.

Chronicle Protocol built Proof of Asset as an institutional-grade oracle layer. The system sources data directly from custodians and fund administrators. It then publishes attestations covering valuation, composition, custody, and asset existence.

Niklas Kunkel, founder of Chronicle, described the product as an “integrity layer” for tokenized finance. He said the tool delivers granular data for asset managers, allocators, and risk teams. He stated, “We’re building a layer that didn’t exist until now.”

Robert Mitchnik, BlackRock’s head of digital assets, addressed the integration. He said the system gives platforms and allocators greater visibility into tokenized asset evaluation and usage. He explained that institutions require deeper verification standards for digital products.

Chronicle Expands Data Infrastructure Across Tokenized Funds

Chronicle reported that Proof of Asset secures about $5 billion in total value. The system supports funds, including the Janus Henderson Anemoy Treasury Fund (JTRSY). It also covers Superstate’s Short Duration US Government Securities Fund (USTB).

Securitize has also implemented Chronicle’s system for its Tokenized AAA CLO Fund (STAC). Chronicle said Proof of Asset differs from price or NAV relays because it verifies underlying holdings data. Kunkel stated that the infrastructure introduces a new verification standard for tokenized funds.

The tokenized BUIDL fund currently holds about $1.7 billion in assets. The portfolio includes U.S. Treasuries, overnight repurchase agreements, and cash. BlackRock manages the fund as the largest onchain Treasuries investment vehicle.

The announcement follows recent efforts to publish off-chain financial data on blockchain networks. Coinbase recently said it would push order book, equities, and futures data onchain through ChainLink’s DataLink tool. Firms such as S&P Global and FTSE Russell have also moved to provide market data directly onchain.