Technology
Issuer-controlled dollar stablecoins (USDT and USDC)
Issuer-controlled dollar stablecoins are privately issued tokens intended to maintain a reference value of one United States dollar. USDT is issued by Tether entities and USDC by Circle entities. Their tokens can move across supported public blockchains without contemporaneous bank settlement, while issuance, redemption, reserves and token administration remain concentrated in private control points. Governments regulate those control points and may request or require enforcement. That structure makes the technology relevant to integration, resilience and denial without making every transfer an act of statecraft.
Technology and control points
An issuer creates tokens against funds or eligible reserve assets and redeems qualifying claims under its terms. Reserve custody, issuance and redemption connect the system to banks and securities markets. Exchanges and other virtual-asset service providers connect users to national currencies. Once issued, a token can move between blockchain addresses without the issuer or a bank processing each transfer in real time. Banking rails therefore matter at reserve, issuance, redemption and many conversion points, but not necessarily during every on-chain movement.
USDT and USDC are centrally administrable token families rather than permissionless monetary assets. Their issuers can use smart-contract functions to disable or freeze tokens at identified addresses on supported networks. Technical capability, contractual authority, voluntary issuer policy and a binding government order are separate questions. Tether's December 2023 policy supplies primary evidence of its stated approach. It does not prove that every freeze was state-directed or that every supported blockchain has identical controls.
Reserve disclosure also requires exact language. An issuer report, accountant's attestation and full financial-statement audit are different engagements. Circle's transparency page establishes what Circle discloses and how it describes its reserves. It is not an independent finding about every asset, liability or operational risk. Historical regulatory findings likewise remain historical. The Commodity Futures Trading Commission's 2021 order and the New York Attorney General's 2021 settlement concern specified earlier periods and do not establish present reserve composition.
Statecraft and regulation
Dollar stablecoins can extend access to dollar-denominated payment, trading settlement and savings outside conventional bank accounts. This supports integration and can deepen demand for dollar assets. It can also give users, including sanctioned or criminal actors, additional routes for moving value. The strategic balance is contested. International analysis by the Bank for International Settlements treats adoption, currency substitution and policy spillovers as conditional outcomes, while its work on stablecoin and foreign-exchange flows measures aggregate patterns rather than every user's purpose.
The United States enacted the Guiding and Establishing National Innovation for U.S. Stablecoins Act as Public Law 119-27 on 18 July 2025. The statute establishes federal definitions and requirements. Treasury's 8 April 2026 implementation proposal remained a proposed rule at the audit date, not final implementation. Foreign regimes and agency responsibilities must be checked again before publication.
Sanctions and law-enforcement actions show how state authority can operate at issuer, exchange and service-provider nodes. Treasury designated Garantex in 2022, and the United States Department of Justice described an international disruption operation in March 2025. Those records establish official acts and allegations within their stated scope. They do not show that every transaction through the exchange involved sanctioned conduct or that stablecoins as a class are sanctions-evasion instruments.
Assessment and limits
The state nexus is regulated-intermediary. Issuers, reserve custodians, exchanges and analytics firms are private operators subject to public law. A freeze is direct state action only where a competent authority orders it. A voluntary issuer action remains private compliance even when it advances a public objective.
Market figures require a precise observation date and source. Circle reported USD 72.3 billion of USDC in circulation on 27 July 2026. That issuer-reported stock should not be combined with transaction flows, reserve values or frozen-token amounts. Comparable USDT figures require the same definition and date.
Stablecoins are dual-use infrastructure. They can expand dollar access, support payments and remittances, facilitate surveillance and enforcement, or be misused to route value around controls. None of those uses establishes a universal strategic effect. Publication requires the token contract, network, issuer, legal authority, address action, reserve disclosure and transaction path relevant to the claim.
See also
Cryptocurrency and stablecoin sanctions evasion · Garantex disruption, Grinex succession and A7A5 (2025-present) · Crypto exchanges as chokepoints (fiat on/off-ramps) · Bitcoin and permissionless cryptoasset networks · Blockchain analytics platforms (Chainalysis, Elliptic, TRM) · Dollar hegemony and exorbitant privilege · Financial exclusion · Tokenised deposits and distributed-ledger settlement
Sources
- United States Congress, Guiding and Establishing National Innovation for U.S. Stablecoins Act, Public Law 119-27 (18 July 2025).
- United States Department of the Treasury, "Treasury Seeks Public Comment on Proposed Rule to Implement the GENIUS Act" (8 April 2026).
- Circle, "USDC," accessed 29 July 2026.
- Circle, "Transparency and Stability," accessed 29 July 2026.
- Tether, "Tether Introduces New Policy to Strengthen Ecosystem Security" (9 December 2023).
- Commodity Futures Trading Commission, "CFTC Orders Tether and Bitfinex to Pay Fines Totalling $42.5 Million" (15 October 2021).
- Office of the New York Attorney General, "Attorney General James Ends Bitfinex's Illegal Activities in New York" (23 February 2021).
- United States Department of Justice, "Garantex Cryptocurrency Exchange Disrupted in International Operation" (7 March 2025).
- United States Department of the Treasury, "Treasury Sanctions Russia-Based Hydra and Garantex Virtual Currency Exchange" (5 April 2022).
- Financial Action Task Force, Targeted Report on Stablecoins and Unhosted Wallets (March 2026).
- Inaki Aldasoro, Jon Frost and Hiro Ito, The Impact of Stablecoins on the International Monetary and Financial System, BIS Papers No. 170 (5 May 2026).
- Inaki Aldasoro, Paula Beltran and Federico Grinberg, Stablecoin Flows and Spillovers to FX Markets, BIS Working Papers No. 1340 (27 March 2026).
Recommended citation
Cite this entry
Tennant, James J., ed. 'Issuer-controlled dollar stablecoins (USDT and USDC).' The Encyclopedia of Economic Statecraft, version 2.0.0-alpha, last reviewed 29 July 2026. https://jamesjtennant.com/entries/stablecoins-usdt-tether-usdc/.
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