ERC-3643
The open standard for permissioned tokenised assets
ERC-3643 provides the standard foundation for regulated tokenisation. T-REX Network extends that foundation into a multi-chain compliance and orchestration layer.
Standard Summary
Overview
What ERC-3643 is
ERC-3643 is an Ethereum standard for security tokens that enables compliant, permissioned token transfers on public blockchains.
Unlike standard ERC-20 tokens, which allow unrestricted transfers between any addresses, ERC-3643 tokens can only be transferred between verified participants who meet the asset's eligibility requirements.
The standard defines a framework for linking on-chain identity to token holders, encoding compliance rules into the token contract, and enabling issuers to maintain operational control over assets after issuance.
Key Characteristics
- Identity verification required for holders
- Transfer restrictions at protocol level
- Issuer operational controls preserved
- Compatible with public blockchain infrastructure
Core Properties
Why it matters
ERC-3643 addresses core requirements of regulated asset issuance on public blockchains.
Permissioned asset model
Transfers only valid between verified participants, enabling regulated asset issuance on public blockchains.
Identity-aware transfers
Every transfer validated against identity credentials of both sender and receiver.
Compliance by design
Compliance rules encoded at protocol level, enforced automatically on every transaction.
Open-standard interoperability
ERC standard enabling interoperability across platforms and service providers.
Adoption
The leading standard for permissioned tokenised assets
ERC-3643 has become the dominant standard for regulated tokenisation, with adoption across fund shares, bonds, private market securities, and other regulated instruments.
The standard's adoption demonstrates institutional confidence in permissioned token infrastructure for regulated asset classes.
$32B+
in tokenised assets deployed
Funds
Shares
Bonds
Fixed income
Private
Securities
T-REX Network
The relationship to T-REX Network
ERC-3643 defines how permissioned tokens work on a single chain. T-REX Network builds on this standard to provide a canonical compliance and orchestration layer for multi-chain distribution.
Where ERC-3643 is the standard foundation, T-REX Network is the orchestration infrastructure that coordinates investor identity, compliance logic, and ownership state across execution venues.
Assets are issued once, compliance is enforced consistently, and transfer agents operate from a single canonical record regardless of where assets trade.
Explore the infrastructure built on ERC-3643
Learn how T-REX Ledger extends the ERC-3643 standard into a canonical compliance layer for multi-chain tokenised assets.