The short answer
This is general educational context, not legal advice. Ask qualified counsel about your jurisdiction and the facts of your intended activity.
Four issues that should not be merged
| Issue | What must be determined |
|---|---|
| Sanctions | Which persons and transactions are prohibited under the applicable regime? |
| Operator regulation | Does the business model trigger registration or other obligations? |
| Criminal conduct | What activity is alleged or prohibited, and under which law? |
| Contractual restrictions | What do the issuer and service terms permit or restrict? |
Two primary U.S. references, with dates
| Date / source | What the source says | Limit of the conclusion |
|---|---|---|
| 19 March 2018 / OFAC FAQ 560 | Relevant sanctions obligations apply to digital and traditional currency alike. | The FAQ addresses U.S. persons and others subject to OFAC jurisdiction; it is not a worldwide legal rule. |
| 9 May 2019 / FinCEN guidance announcement | Certain virtual-currency business models are subject to money-transmitter obligations. | The announcement is historical explanatory material, not approval of a particular service. |
A historical headline is not a current legal status
A sanctions designation, its removal, a court decision and a criminal proceeding concern different legal questions. Do not use an old headline to label every present-day transaction legal or illegal.
Before relying on a specific case or designation, check the current primary record, the parties, the date and the jurisdiction. This page makes no current-status claim about a named mixer and does not maintain a sanctions-screening service.
StableMatrix's role is educational
StableMatrix does not custody funds, execute an exchange, offer legal representation or certify a provider's compliance. Describing a mechanism is not endorsing its use for any prohibited activity.
A third-party link does not transfer the external operator's obligations to this publication. It also does not remove any rights or duties that mandatory law imposes. Contractual terms and jurisdiction-specific rights require separate legal review.
Source notes
Each reference has its own last-check date. That is not its publication date. Follow the live document for current terms and identifiers.
- U.S. Treasury / OFACFAQ 560: digital currency obligationsSanctions obligations for U.S. persons and others subject to OFAC jurisdiction. Document date: 2018-03-19. Checked: 2026-09-20.
- FinCENVirtual currency regulatory frameworkHistorical 2019 explanation of how money-transmission rules apply to certain business models. Not a present-day legal clearance. Document date: 2019-05-09. Checked: 2026-09-20.
- CircleUSDC TermsRedemption conditions, blocked addresses, third-party platform boundaries and transfer risks. Document date not recorded. Checked: 2026-09-20.
- TetherToken terms and risk disclosuresIssuer rights, redemption conditions, restrictions, and third-party wrapped-token risks. Document date: 2026-02-26. Checked: 2026-09-20.