When someone pictures a token, they usually think of the most common model: any wallet can receive it, anyone can transfer it, no questions asked. That model is great for a free asset, and wrong for a regulated one. This is where a standard cited in our other texts only as a reference comes in: ERC-3643.
If you read what tokenization is, you already saw the idea that the ledger can be programmable. ERC-3643 is one of the mature ways to do this for assets that need to know who is on the other side.
The problem it solves
In a security, who is allowed to hold it is not a detail, it's a rule. There are eligibility requirements, KYC/AML requirements, sometimes jurisdictional ones. In a plain token, none of this is enforced by the ledger: the rule lives in a parallel manual process, and the token, by itself, would transfer to any address.
ERC-3643 flips this. Holder eligibility becomes a condition built into the token itself: a transfer that would violate the asset's rule simply does not complete. The rail knows how to refuse.
How it works, in plain language
Without getting into the code, the standard rests on two ideas:
- On-chain identity. Each eligible wallet is associated with a verified identity: "passed KYC/AML" stops being a separate spreadsheet and becomes a credential the token can check.
- Transfer rules. Before each movement, the ledger asks: can this recipient hold this asset? If the answer is no, the transfer is blocked at the source.
The practical effect is what we described in the text on KYC, AML and permissioned wallets: the control over who holds the token stops depending on good will and becomes a property of the rail.
What it is not
It's not an acronym that makes an operation legitimate. The standard is a tool (good, mature, suited to regulated assets), but it's the last piece. Before it come the backing, the legal vehicle and the CVM framing, covered in CVM 88 and 175. We cite ERC-3643 by name because it's a useful reference; what matters to an issuer is not the acronym, but that the ledger respects the asset's rule.
If your operation needs to control who holds the token, describe the instrument and the size: the rail is designed from the rule, not the other way around.
Notice
Forward Factory is an infrastructure platform for asset tokenization and does not provide investment advice, recommendations or counseling. The solutions described here do not constitute a public offering of securities. When a token represents a security, it observes the corresponding regulation, and the structuring of issuances adopts know-your-customer and anti-money-laundering (KYC/AML) procedures. Any offerings observe the applicable regulation of the Brazilian Securities and Exchange Commission (CVM), including CVM Resolutions No. 88 and No. 175. Past performance is no guarantee of future results; investments involve risk.