Stablecoins and Web3: What They Are, Risks and Future of Digital Payments

What Are Stablecoins and Why Are They the Backbone of Web3?

In the ecosystem of cryptocurrencies andWeb3and asStablecoinsUnlike volatile assets such as Bitcoin, a stablecoin is a cryptocurrency designed to maintain a stable value, usually tied to a fiat currency such as the US dollar (USD) or the euro. This stability is gained through real asset reserves, algorithms or a combination of both.

In practice, they function as the “bridge” between the traditional financial world and the decentralized universe.While Bitcoin faces significant daily fluctuations – such as the recent drop below $70,000 mentioned in market analysis – stablecoins offer a safe haven within brokers and brokerage companies.Decentralized Applications (dApps), allowing transactions, loans and payments without exposure to extreme volatility.

Main Types and Mechanisms of Stability

There are three main categories of stablecoins:

• The fiat collateralized (fiat collateralized)as aUSDCCircle’s (USD Coin) and USDT (Tether), are loaded with reserves in dollars and equivalents held at financial institutions. For each token issued, there is supposedly one dollar in custody.
• Cryptocurrencies (crypto collateralized)They use other cryptocurrencies (such as Ethereum) as collateral, often supercolateralized to absorb price fluctuations.
• The algorithms:They seek to maintain parity through algorithms that control the token supply, without direct lasting on real assets. This model has been shown to be vulnerable to "bank run" events, such as the collapse of Earth's UST in 2022.

The Controversy of Centralized Control: Freezing Funds and Risks

The recent accusation of the on-chain researcherby ZachXBTIn the case of Circle, the broadcaster of USDC, one of the biggest debates in the industry was brought to light: theRisk of centralizationAccording to allegations, the company would have frozen millions of dollars in USDC tokens on wallet addresses “without an apparent valid reason.”

This episode highlights an intrinsic contradiction. Many leading stablecoins, despite operating on open blockchains, are issued by centralized entities that retain the power to "freeze" or even destroy tokens under certain circumstances. This power is often justified to comply with regulations and combat illegal activities, but raises deep questions aboutFinancial censorshipProperty rights and the true essence of decentralization on the Web.

For users and, this risk means that funds held on a stablecoin such as USDC are not fully immune to third-party interference.It is an exchange: price stability and widespread adoption are accompanied by a degree of trust in the issuer and its governance.

The Tazapay Case and the Expansion of Global Payments

In contrast to the risk narrative, the stablecoins industry continues to attract massive investments to revolutionize cross-border payments.Series BTazapay, a cross-border payment platform, which reached $36 million.Circle, showing the company’s commitment to building infrastructure beyond the mere issuance of tokens.

Startups like Tazapay use stablecoins and blockchains to offer a faster and cheaper alternative to traditional international corporate transfer and payment systems. For the Brazilian market, this is relevant. Export and import companies, freelancers working abroad and even tourists can benefit from solutions that reduce exchange costs and settlement time, which today rely on corresponding banks and slow systems like SWIFT.

The Future: Regulation, Innovation and the Pursuit of Decentralization

The future of stablecoins is intrinsically linked toRegulatory evolutionIn the United States and the European Union (with MiCA), frameworks are being designed to govern the issuance and operation of these assets. Clear rules are expected to bring more legal certainty and drive institutional adoption, but can also consolidate the centralized model of major broadcasters.

At the same time, innovation continues in the search for truly decentralized and resilient stablecoins. Projects experiment with tokenized real-world assets (RWAs), such as treasury bonds, and with more robust community governance mechanisms. The integration of stablecoins into Web3 social networks, such as X (formerly Twitter) – which recently hired a former project designer such as Base (from Coinbase) and Aave – also points to a future where transactions and social interactions take place in the same native digital environment.

For the Brazilian ecosystem, the development of a stablecoin based on Real Digital (the CBDC under study by the Central Bank) or regulated private initiatives can open new doors for financial inclusion and efficiency in foreign trade.