Stellar is drawing attention for developing 'confidential stablecoin' technology that can protect financial institutions' sensitive transaction information while maintaining regulatory compliance and audit capabilities.

■ "Building a Private Stablecoin for Banks"

Crypto market participant Giannis Andreou introduced a new confidential stablecoin structure through the CoinMarketCap community, stating that "Stellar is building a private stablecoin for banks." He summarized the structure's key feature as "a combination of public payment and settlement infrastructure with private business data."

The approach uses a public blockchain for transactions and settlement while ensuring that sensitive financial information such as transaction amounts and balances is not directly exposed to outsiders.

■ Addresses Public, Amounts and Balances Encrypted

This development direction is also confirmed in official Stellar materials. The confidential token structure released by Stellar and OpenZeppelin is designed to keep account addresses public while encrypting token balances and transfer amounts so that general users cannot view them. State changes in transactions are verified for validity using zero-knowledge proofs.

The key point is that it goes beyond simply hiding transactions. Stablecoin issuers can freeze or unfreeze specific accounts when necessary, and external identity verification and regulatory policies can be applied to token transactions. The structure also includes granting separate permissions to designated auditors to review transaction information to the necessary extent.

■ Targeting Institutions' 'Information Exposure' Burden

This targets 'information exposure,' one of the problems financial institutions face when adopting public blockchains. While public blockchains have the advantage of allowing anyone to verify transactions, excessive exposure of a company's fund movement scale, counterparties, and balances can become a burden for actual financial operations.

To solve this, Stellar presents a direction of 'public by default, with privacy applied selectively when needed.' Institutions can apply the level of confidentiality they require while maintaining auditability and regulatory compliance functions.

Notably, Stellar's Confidential Tokens keep sender and recipient addresses public while hiding transaction amounts and balances. For example, the fact that a bank or company transferred funds to another party can be verified on the blockchain, while outsiders cannot know how much was actually sent or how much remains in each account.

This is the context behind Giannis Andreou's emphasis on "Public settlement, Private business data." For institutions, it is a structure that allows them to leverage the openness and interoperability of blockchain without disclosing sensitive financial information to competitors or general market participants.

■ Two Application Methods: Wrapper and Standalone

These confidentiality features can also be applied to stablecoins. Two methods have been presented: a 'wrapper' approach that adds confidential features to existing stablecoins, and a standalone approach that issues confidential stablecoins from the outset.

In the wrapper approach, existing stablecoins are deposited into a confidential token contract and then transacted with private balances, and can be withdrawn back into the original tokens when needed. In the standalone approach, even issuance and burning volumes can be handled with cryptographic commitments.

■ Still at the 'Developer Preview' Stage

However, it is difficult to consider this commercialized yet. According to Stellar's official developer documentation, Confidential Tokens are currently at the 'Developer Preview' stage. It is explicitly stated that the related contracts and demos have not yet completed audits and are not intended for production environments using real assets.

Therefore, the significance of this technology lies not in Stellar already fully operating a private stablecoin for banks, but rather in concretizing a 'confidentiality + regulatory compliance' structure that banks and companies may demand when using stablecoins on public blockchains in the future.

If the institutional stablecoin market expands, technology that protects transaction information while maintaining issuer control, regulatory compliance, and auditability could become an important competitive factor. This is also why Giannis Andreou evaluated this technology as a key requirement for institutional stablecoins.

[Technologies related to cryptocurrencies and blockchains may differ in their development stages and actual commercialization timelines. Technological development or the possibility of institutional adoption does not imply a price increase for any specific cryptocurrency, and investment outlooks may differ from actual market movements. Investment decisions and responsibilities rest with the investor. This article was written based on publicly available materials with the assistance of AI.]