Understand ERC-3643from first principles.

A short, plain-language overview of how compliant tokenized assets work, and where to go next. Written for the finance professional, with deeper technical references one click away.

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Find your starting point.

Four short doors into T-REX. Each one is a one-minute orientation that points you to the page with the real depth.

01

Why tokenization

The structural case for putting regulated assets onchain, in plain terms.

02

The standard

ERC-3643, the permissioned token standard the asset itself is built on.

See ERC-3643 03

The Ledger

The golden-source reference chain that keeps compliance coherent across chains.

See the Ledger 04

The Network

How the open, chain-agnostic pieces fit together as one ecosystem.

See the Network

How compliant tokenization works.

The whole model in three moves. The mechanics behind each one live on the network pages.

01

Issue once

The asset is a permissioned ERC-3643 token. Eligibility, transfer rules and identity are part of the token itself, checked before any transfer settles.

02

One golden record

Ownership and compliance state live on the T-REX Ledger as the golden record, the canonical register other chains read from.

03

Distribute anywhere

On other chains the asset moves by consuming a compliance validation from the golden record, so eligibility stays enforced wherever it travels.

The latest writing.

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The vocabulary, defined.

RWA (real-world assets)

Assets from the traditional world such as funds, bonds, credit, shares, property, and cash, brought onto a blockchain as tokens instead of being held only in paper or database records.

Tokenization

Turning ownership of an asset into a token on a blockchain, so it can be issued, held, and transferred digitally, with the rules and the record of ownership built in.

Blockchain

A shared digital record kept on many computers at once, with no single owner, where entries cannot be quietly changed. Also called a chain or a network.

Onchain

Something recorded and run directly on a blockchain instead of in a private company database. Anyone allowed to look can check it against the shared record.

Onchain finance

Finance where the asset, its rules, and its record of ownership all sit on a blockchain, so issuing, transferring, and settling all happen in the same place.

Orchestration

Coordinating many moving parts so they act as one, here, keeping an asset's rules, identity checks, and records working together smoothly across systems and chains.

ERC-3643

An open standard for tokens that represent regulated assets. The rules about who may hold or receive the token are built into the token, so every transfer is checked against them first.

Permissioned token

A token that can only be held or received by approved, verified people. The check happens automatically before any transfer goes through.

Permissionless token

An ordinary token that anyone can hold or send freely, with no approval needed. Good for open use, but not for assets that must stay within a verified group.

Identity

A way to prove who a holder is on a blockchain, using digital confirmations signed by trusted parties. It proves someone is eligible without putting their personal details on the blockchain.

KYC / AML

Know Your Customer and Anti-Money-Laundering, the checks a regulated business runs to confirm who someone is and that their money is legitimate before letting them transact.

Compliance

The rules and regulations a transaction has to follow. With smart contracts, those rules are written into the code, so it only allows transfers that meet them and blocks the rest.

Modular compliance

A flexible way of handling those rules, where each one (a cap on holders, a country restriction, a holding period) can be turned on, off, or combined, instead of being fixed in place.

Golden record

One official version of the truth that every other copy has to match. For an asset, it is the definitive record of who owns what and what is allowed.

Ledger

A record of transactions and balances. A blockchain is a shared ledger, one copy kept in step across the whole network rather than held by a single institution.

Cap table

The record of who owns an asset and how much they hold. Onchain, the token is this record itself, updating on its own as the asset changes hands, with nothing separate to reconcile.

Mint

Creating new units of a token and adding them to the record. It is the onchain version of issuing new shares or units of an asset.

Burn

Permanently removing units of a token from the record, for example when an asset is paid back or retired. It is the reverse of minting.

Cross-chain

Working across more than one blockchain at once, so an asset or a message can move between separate networks instead of being stuck on the one it started on.

Reconciliation

Checking that two or more records match and fixing any differences, so every copy of who-owns-what stays the same, including across different blockchains.

Compliance validation

A signed, one-time confirmation that a specific transfer is allowed. Other systems can rely on it without having to re-check every rule themselves.

Confidentiality

Keeping sensitive details such as balances, positions, and who is dealing with whom private, visible only to the people entitled to see them, not to everyone on a public network.

Fully Homomorphic Encryption (FHE)

A way of doing calculations on data while it stays encrypted, without ever unlocking it. Checks can run on the information while the actual values stay hidden.

Utility

What an asset can do once tokenized that it could not before, such as becoming easier to buy and sell, earning yield, being used as collateral, supporting lending and borrowing, and reaching new groups of investors.

Ask anything, in plain language.

Trained on the full corpus of documentation, the ERC-3643 specification, and the public technical brief of the Ledger. From a beginner question to a contract-level query, answered with cited references.

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Documentation & references.

Docs

ERC-3643 documentation

The canonical standard docs, maintained by the ERC3643 Association.

Docs

ERC-3643 whitepaper

The standard explained in full: design, rationale, and the compliance model.

Docs

T-REX documentation

Integration guides, contract references, and the technical brief of the Ledger.

Frequently asked questions.

Where do I start if I am new to tokenization?
Start with the basics: what tokenization is, and what it unlocks for an asset once it is onchain. The key terms above cover the core vocabulary in plain language. From there, look at the standard regulated assets are built on and how identity and compliance keep those assets within the rules, the doors at the top of this page lead to each. If you would like guidance tailored to your assets or your organization, contact us and the team will help you find the right starting point.
What is the difference between a tokenized asset and a cryptocurrency?
A cryptocurrency like Bitcoin is its own native asset with no issuer behind it. A tokenized asset is a real-world thing, a fund, a bond, a property, represented as a token, with a named issuer, legal rights, and rules about who can hold it. The token is the asset, not a speculative coin.
Is tokenization legal and regulated?
Tokenizing a regulated asset does not remove the regulation, it carries it onto the blockchain. Standards built for this, such as ERC-3643, keep eligibility and transfer rules enforced on every transaction, so a tokenized security stays subject to the same laws as its traditional form.
What kinds of assets can be tokenized?
Almost any asset with clear ownership: investment funds, bonds, private credit, company shares, real estate, commodities, and cash. In practice the assets that benefit most are those that are illiquid, slow to settle, or expensive to administer the traditional way.
Who keeps track of who owns a tokenized asset?
The blockchain itself. Ownership is recorded onchain as the token moves, so the register updates in real time rather than living in a separate database that has to be reconciled later. That shared record is what lets the asset move quickly while staying accurate.

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Talk to an expert about what tokenization could mean for your assets.

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