Informational Guide From The House Of KuCoin About Three Popular Crypto Bridges And Their Working


Any digital or virtual currency that uses cryptography to protect transactions is considered a cryptocurrency, such as qnt usdt. Cryptocurrencies use a decentralized system to record all transactions and issue new units rather than having a centralized issuing or regulating authority. Crypto bridges are necessary to make it easier for various blockchains, like mining pool, to communicate with one another. They connect crypto ecosystems that were previously isolated, allowing users to transfer assets and share data across distinct blockchains with distinct technological and economic rules. Data and assets stored on one blockchain cannot typically be transferred to another because blockchains are not inherently interoperable. Numerous projects address this issue by constructing crypto bridges between them to make the transfer of data and assets easier. However, there is no one-size-fits-all crypto bridge because it only connects specific blockchains. In contrast, KuCoin has developed into a leading cryptocurrency exchange that can claim to serve every one of the world’s four crypto holders. The fiat onramp, futures, margin trading exchange, and many other crypto services are among its impressive offerings.

Crypto Bridge: What Is It?

A protocol known as a crypto bridge makes it possible for two or more blockchains to collaborate and exchange data with one another. Users on one network can participate in the activities of another because it connects blockchains. Users of cryptocurrencies can use their holdings outside of native chains, thanks to this. Tokens, consensus mechanisms, communities, and governance models of different blockchains differ. Data and cryptocurrencies can be transferred between chains with the help of a crypto bridge, which makes blockchain interoperability easier.

Types of Bridges

Trusted bridges

Trusted bridges are those that are dependent on a single entity or system. They include external verifiers to ensure the safe transfer of data and value. Notwithstanding, this likewise implies they expect clients to surrender control of their crypto resources, which goes against the crypto ethos of self-authority.

Trustless bridges

In contrast to trusted bridges, trustless bridges do not rely on any third parties. Instead, they use smart contracts to manage the interoperability process and operate decentralized. As a result, users can keep control of their crypto. On the other hand, trustworthy bridge users look to the underlying code rather than the bridge operators’ reputation.

Uni-directional bridges

One-way or uni-directional bridges Users can move their cryptocurrency to another network without worrying about sending it back the same way. This indicates that only one-way transactions should make use of them.

Bi-directional bridges

On the other hand, bi-directional bridges enable the simultaneous transfer of assets. They make it easier to move cryptographic keys and data between two networks. As a result, it might be more convenient for a user who frequently sends and receives crypto over two networks.

Solana Wormhole Bridge

Solana Wormhole Bridge is a bidirectional bridge that uses Solana’s high-speed and low-cost structural advantages to facilitate the swift and inexpensive transfer of tokenized assets between blockchains. Wormhole was Solanas’s attempt to address typical problems with decentralized finance (DeFi), like high gas prices, price slippage, and network congestion. It offered a decentralized means of connecting Ethereum and Solana via ERC-20 and SPL when it went live in 2020. Currently, the Solana Wormhole permits crypto transfer between 17 chains.

Avalanche Bridge (AB)

Avalanche Bridge (AB), a second bidirectional bridge designed specifically for retail customers, was launched in July 2021 by Ava Labs. The bridge, which replaces the Avalanche-Ethereum Bridge (AEB) design that was previously in use, has fees approximately five times lower than its predecessor. By focusing on security, faster finality, and lower fees, AB also aims to enhance the asset-bridging experience for users. By allowing users to transfer Ethereum ERC-20 tokens to the Avalanche Mainnet, AB also connects Ethereum and Avalanche.

Polygon Bridge

The Polygon team first proposed the trustless Polygon Bridge at the beginning of 2020 to improve interoperability between the Polygon and Ethereum networks. Later that same year, the bridge went live. Users can now transfer tokens and non-fungible tokens (NFTs) between Polygon and Ethereum. Presently clients can exploit Ethereum’s prevalence while using Polygon’s lower expenses and quicker exchange times.


Though crypto bridges improve the interoperability of the crypto ecosystem, you should always conduct research before selecting a bridge. Keep in mind that the circulating supply of the cryptocurrency you want to transfer will not be altered by bridging. Bridges mint new tokens on the receiving side and lock tokens on the sending network, resulting in wrapped tokens.

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