Zama and Apex Group-backed T-REX Network have launched what they describe as institutional-grade confidentiality infrastructure for tokenized real-world assets, aiming to let regulated finance operate on public blockchains without exposing sensitive data.

Tokenization refers to the process of converting traditional assets, such as funds, bonds, or equities, into blockchain-based tokens that can be issued, transferred, and traded digitally. The technology promises faster settlement, broader access, and improved liquidity, and is widely regarded as one of the fastest-growing sectors in crypto.

Yet, some argue that adoption is still constrained by a structural trade-off: public blockchains offer transparency and interoperability, but also expose balances, positions, and transaction flows. This inherent visibility has kept large institutions on the sidelines or pushed them toward private chains, which often fragment liquidity and limit the benefits of shared infrastructure.

Confidentiality layer

Central to the system is the T-REX Ledger, a multi-chain coordination layer for compliant digital securities built on the ERC-3643 standard. According to the team, this standard already underpins more than $32 billion in tokenized assets.

Zama’s approach uses fully homomorphic encryption, or FHE, a cryptographic method that allows computations on encrypted data without decrypting it. In practice, this lets smart contracts process transactions while keeping underlying financial information hidden.

The result is a system where assets can move across public networks while preserving the confidentiality expected in traditional finance. The firms say this supports issuance, trading, and settlement of tokenized assets without revealing investor identities, portfolio allocations, or trading strategies.

"The T-REX Ledger was built to be the trusted multi-chain orchestration layer for institutional RWAs, but trust also means privacy," Joachim Lebrun, co-founder of T-REX Network and lead author of the ERC-3643 standard, told The Block.

The design brings compliance, interoperability, and confidentiality into a single stack. Identity checks and regulatory controls remain embedded at the token level, while encrypted execution protects data across transactions. Lebrun said the main goal is to remove the need for separate private systems.

"Integrating Zama’s FHE protocol directly into the T-REX Ledger means institutions can finally operate fully onchain without exposing their confidential data to the world."

Broader scaling ambitions also anchor the collaboration. Apex Group, which services $3.5 trillion in assets, has committed to adopting the T-REX Ledger as its default infrastructure, with a target of reaching $100 billion in tokenized assets by June 2027.

"Confidentiality is not an optional feature for institutional blockchain adoption — it is foundational infrastructure," said Zama co-founder and CEO Dr. Rand Hindi. "Our goal is to make Zama the confidentiality layer for public blockchains, enabling institutions and investors to operate onchain with the same level of privacy they expect offchain."

Zama has been building toward this model for some time. Earlier this year, the company launched its (ZAMA) token and introduced a privacy metric, following more than $121 million in value already shielded on Ethereum, signaling early traction for encrypted onchain activity.