An Explainer on Blockchain Bridges: Definition and Function

  • Crypto Guru
    December 23, 2022, 21:36

The NFT market and non-fungible tokens are both supported by the noteworthy technology known as the blockchain. Although the number of networks supporting NFTs is growing, the majority of these networks are isolated from one another, making cross-chain trading between these networks challenging.

Thus, one of the biggest problems with blockchains is a lack of interoperability. This limitation led to the development of blockchain bridges, which allow you to transfer assets from one blockchain to another. This guide explores everything you need to know about blockchain bridges and how Grapherex project can aid in enhancing their functionalities.

What are Blockchain Bridges?

The blockchain bridge joins two different blockchain networks or applications, just like physical bridges do. A blockchain bridge, often known as a “cross-chain bridge,” can operate in a variety of ways. It can make it easier for assets and data to migrate continuously across different network layers, as well as between various blockchain networks.

The best way to ensure interoperability across various blockchain network types is through the use of a blockchain bridge. It expands the possibility for applications built on one blockchain network to utilize those of another. Blockchain bridge projects are now in demand as a result of the development and maturation of the technology, which will enhance interoperability between various blockchain networks.

A blockchain bridge can function by exchanging decentralized identities, off-chain data, and calls to smart contracts. Every blockchain project has distinctive defining criteria that are particular to the project and cause interoperability issues. The established solution to this issue is a blockchain bridge, which can be used to move transaction data and datasets in either a trusted, trustless, bidirectional, or unidirectional manner.

Blockchain Bridge in Action: NFT Bridging

A good example of blockchain bridges at work is through NFT bridging. Their functionalities are especially crucial when NFT monetization is done in cross-platform networks, and fractionalised NFT marketplaces.

NFT bridging enables cross-platform trading of NFTs, including fractional NFTs. The fractionalisation process is a crucial advancement in a developing market of NFTs, allowing multiple ownership of fractional NFTs. Blockchain bridges can provide means of transporting NFTs to preferred blockchain networks and utilize the cross-chain portal to make NFTs available to all markets.

It pays to consider NFT fractionalisation incentives or the benefits that fractionalisation bring to the table; these include price discovery, asset liquidity, and investment democratisation.

Four Variants of Blockchain Bridges

Interestingly, a breakdown of the many blockchain bridge variations could provide more insight into their functions. Blockchain bridges contain unique characteristics, much like blockchain networks do, which serve as defining parameters.

This section discusses the four blockchain bridges variants.

Trusted Bridges

This is a form of blockchain bridge in which a single operator controls its protocols. Users must trust the identity or reputation of a centralized bridge in order to deposit funds on it, earning the name “trusted blockchain bridge.” Trusted blockchain bridge instances have demonstrated user-friendly interfaces that attract more users.

Trustless Bridges

The trustless variation of a blockchain bridge uses algorithms and smart contracts. A trustless blockchain bridge needs no intermediaries or custodians.

Unidirectional Bridges

Unidirectional bridges consider transaction direction and can only provide irreversible asset transfers between networks.

Bidirectional Bridges

Another type of blockchain bridge that operates in direct opposition to unidirectional bridges is the bidirectional bridge. A blockchain bridge that is bidirectional aids in assuring smooth asset and data flow between two networks.

The Potential of Blockchain Bridges

Blockchain bridges’ unique features and adaptations give a convincing picture of their significance for the development of blockchain technology. Bridges present a possible method for fluidly switching between various blockchain networks. Along with the blockchain networks it connects, a blockchain bridge’s benefits can also benefit investors and developers.


The blockchain community can use the bridges to gain the advantages of scalability and interoperability while also providing real decentralization. The development of blockchain bridge projects may strengthen and improve the user experience of the web3 ecosystem.

Bridges can provide seamless user experiences and transfer of assets as the popularity and use of blockchain applications continue to surge. Grapherex project features can improve the user experience even more through its features and services.