# Miden Puts a Private, Circle-Backed Dollar at the Center of Its Mainnet Launch

USDCx will be issued natively on Miden against USDC held through Circle's xReserve, with transactions private by default and balances disclosed selectively to auditors and counterparties.

- Published: 2026-08-30T05:48:31.718Z
- Canonical: https://polylog.news/crypto/2026-08-30/miden-puts-a-private-circle-backed-dollar-at-the-center-of-i
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [Miden (USDCx announcement)](https://miden.xyz/blog/usdcx-on-miden-stablecoins-with-privacy), [Miden (PriFi stack)](https://miden.xyz/prifi-stack), [CoinDesk](https://www.coindesk.com/tech/2026/08/12/miden-bets-on-privacy-stablecoins-with-introduction-of-usdcx)

Miden, the zero-knowledge network that spun out of Polygon in 2025, is launching USDCx, a stablecoin issued natively on Miden and backed one-for-one by USDC held through Circle's xReserve infrastructure. Transactions are private by default.…

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