Skip to main content

Blockchain Bridges As An Alternative To Waiting For Ethereum 2 0

By September 29, 2022October 6th, 20222 Comments

But, given its useful and unique aspect of connecting several blockchain systems, it goes without saying that the bridges will play an important role in the future blockchain universe. And big steps are being taken to create a free space where digital money will be compatible with fiat currencies. For example, Ripple is working on the Interledger protocol, which allows transactions between blockchain platforms and traditional solutions. On the other hand, it would be impractical to expect the full value of liquid Ethereum or Bitcoin ecosystems to be immediately distributed across networks. One characteristic of a cross-chain bridge is that it enables users to exchange one cryptocurrency for another without first changing it to fiat currency.

Op-Ed: Trustless bridges: A much-needed solution to the security risks of blockchain bridges – CryptoSlate

Op-Ed: Trustless bridges: A much-needed solution to the security risks of blockchain bridges.

Posted: Fri, 24 Jun 2022 07:00:00 GMT [source]

Those systems include financial institutions, banks and credit cards that handle foreign exchange. In the world of blockchains, a cross-chain bridge serves a somewhat analogous purpose. The emergence of decentralized finance can significantly reduce the gap between cryptocurrencies and the traditional financial system. Moreover, experts believe that DeFi solutions can solve the issue of cryptocurrency integration into the financial world even faster than the leaders of the payment industry, such as PayPal or Coinbase.

Wrapped tokens are typically based on the ERC-20 technical specification for an Ethereum network. For example, WBTC is a Bitcoin token wrapped with an ERC-20 Ethereum smart contract. A cross-chain bridge enables an exchange of information, cryptocurrency or NFTs from one blockchain network to another. It enables the flow of data and tokens across what would otherwise be siloed sets of data on different blockchains. Blockchain bridges help reduce Ethereum network traffic by distributing it to other less loaded blockchains, thus solving Ethereum scalability issues. At the end of the day, teams do not need to limit themselves to a single blockchain if they want to strengthen one blockchain with the scalability of another.


An important factor contributing to the popularity of this sector is the successful attempt by DeFi developers to partially solve the compatibility problem. As a result, users can easily exchange different tokens or refinance a loan from one asset to another. The transfer of tokens is not literal; rather, when a token must be transferred from one blockchain to another, it is burned on the former one, and the equivalent amount of tokens is minted on the other side.

Here in the federated bridge, a criteria has been set out for the user to take part in the federation that manages and oversees bridge transactions. Under the protocol when a token leaves from the ABC blockchain, it is either burned or locked while an equivalent token minted on the opposite blockchain. Similarly, when the token moves back to its original network, the “twin” token is burned or locked. This interoperability issue slowed down the blockchain growth, however; thanks to the Bridges promising to tackle the interoperability issue. Higher-order protocols can be used to bridge but should only be used when other options are not available.

trustless bridges blockchain

Blockchain is a distributed ledger technology that uses cryptography to provide assurance and integrity to data and transactions. Blockchain networks enable many types of services, including secured databases, immutable ledgers, decentralized applications, decentralized finance, non-fungible tokens and cryptocurrencies. The Nervos ‘Common Knowledge Base’ is a permissionless, layer 1, open-source, proof-of-work blockchain protocol focused on creating the foundations for an interoperable universal public network. It allows any crypto asset to be kept in a secure, immutable, and permissionless environment with the added benefit of smart contracts and layer 2 scaling.

Solve Scalability

While bridge designs are now getting to a place where they are sufficiently planned out, there have not been too many used heavily in production. Salesforce Trailhead is a series of online tutorials that coach beginner and intermediate developers who need to learn how to … Cybersecurity is the protection of internet-connected systems such as hardware, software and data from cyberthreats. A cloud-native network function is a service that performs network duties in software, as opposed to purpose-built hardware.

  • Enabling interoperability and exchange across different blockchain networks is an area where cross-chain bridges — sometimes also referred to as blockchain bridges — play an increasingly important role.
  • This will allow existing projects and platforms to reliably move assets between networks while taking advantage of the ultra-fast and secure blockchain.
  • The Syscoin Bridge is a zero counterparty bridge for moving tokens back and forth between the Syscoin and Ethereum blockchains.
  • EOS Bridge – The Bifrost team was awarded a grant in W3F Grants Wave 5 to build a bridge to EOS.
  • Bridges linking two blockchain networks help dApps take advantage of both systems.
  • The Umbria Narni Bridge enables blockchain asset transfer using liquidity pools, where assets are held across multiple chains.
  • It allows holders of BTC to “teleport” their assets to Polkadot as PolkaBTC, and holders of PolkaBTC to burn their assets for BTC on the Bitcoin chain.

The freshest and brightest example of a trustless bridge is Wormhole, which connects Solana and Ethereum. It converts ETH and ERC-20 standard tokens to SPL standard tokens on the Solana blockchain. This will allow existing projects and platforms to reliably move assets between networks while taking advantage of the ultra-fast and secure blockchain. Moving to Solana eliminates network congestion or high transaction fees and still allows you to return to the Ethereum network if necessary. However, with the growing popularity of decentralized finance in 2020, the problem of cryptocurrency compatibility is more acute than ever. The fact is that the DeFi industry itself was conceived as a single financial ecosystem whose products had to be intercompatible.

1) A blockchain bridge is an interconnected link that provides communication and interaction between two blockchain systems. Let’s look at what blockchain bridges are, how they work, and what benefits they provide. RSK operates as the sidechain of the Bitcoin blockchain allowing users to cross their BTC and use them in RSK to interact with smart contracts. By allowing data and tokens transferability between two blockchains builds connectivity and also a big impediment to the mass adoption of the technology. Blockchain bridges help reduce network traffic by distributing it across other, less loaded blockchains, thereby solving scalability problems. The ‘Trustless-bridge’ works more or less like a public blockchain network where anyone can join the platform without any permission.

An effective cross-chain bridge can also enable the transfer of smart contracts and NFTs from one blockchain environment to another. There are many blockchain networks and cryptocurrencies that use different blockchain technologies, including Bitcoin, Ethereum, Avalanche, Polygon, Solana and Arbitrum. Enabling interoperability and exchange across different blockchain networks is an area where cross-chain bridges — sometimes also referred to as blockchain bridges — play an increasingly important role. Similar to a private blockchain, a Federated bridge requires a user to meet certain criteria and requirements set by the federation to be part of the bridge. For example, a Wanchain blockchain bridge connects several isolated blockchains to provide a flow of digital assets and data.

Bitcoin Bridge Xclaim Substrate Polkadot​

IOHK and Nervos are teaming up to build a bridge of interoperability between Cardano and the Nervos Network. Once completed, this pioneering cross-chain bridge will enable users to transact assets between the two blockchains. The end goal is to foster greater interoperability while expanding the global reach and utility of both Nervos and Cardano. As for public and private blockchains, blockchain bridges are divided into two categories – “Trustless” and “Federated”.

trustless bridges blockchain

However, there is nothing that blocks a development team from building and deploying the former. For Bitcoin, which is perhaps the most well-known cryptocurrency, the most common bridge is with the use of Wrapped Bitcoin . Wrapped Bitcoin is sometimes referred to as a blockchain bridge, as it enables Bitcoin as an ERC-20 token — a token specification that is supported on many other blockchains. One common approach is using a wrapped token issued by the cross-chain bridge provider platform. With a wrapped token, the value of one token from a specific blockchain network can be encapsulated inside another token.

XCLAIM, in particular, requires any swappable asset to be backed by a collateral of higher value than the swappable assets, which adds additional overhead. The Celer cBridge uses the Celer State Guardian Network to enable liquidity across different blockchains. Another approach to enabling cross-chain bridge transfers is by using a liquidity pool. With a liquidity pool, a cross-chain bridge provider holds inventory — or pools — of various coins where one can be exchanged for another. Leveraging the opposite blockchain that charges less fee than the original one helps Tokens and DApps developers to reduce the cost. But the problem is most stores accept the payment in only one crypto majorly Bitcoin, as crypto enthusiasts, it is hard to digest the fact that you don’t have the choice to choose the best crypto to transfer instantly.

For Bridge Builders​

And in 2020, technology companies have repeatedly noted the importance of combining the efforts of large blockchain platforms, which until recently were created in an independent manner. 3) With blockchain bridges, any data, information, and tokens can be transferred between two blockchain platforms. 2) Blockchain bridges help dApps take advantage of both systems, not only their host platform, by linking two networks. For example, a dApp hosted on Ethereum and linked to the EOS blockchain can take advantage of Ethereum smart contracts’ functionality and the scalability of EOS. Thanks to blockchain bridges, any data, information and tokens can be transferred between two blockchain platforms.

The existing bridges have been functioning in their current form for too little time, so they are still at the stage of adoption. Ultimately, teams do not need to limit themselves to one blockchain if they want to strengthen the community of one with the performance of the other. Interlay BTC Bridge – The Interlay team was awarded a grant in W3F grants Wave 5to build a trust-minimized BTC bridge.

Cross-chain bridge providers often support multiple types of blockchains, though specific support varies from provider to provider. Support for bringing smart contracts, tokens and NFTs from the Ethereum mainline to different blockchain networks is among the most common feature across cross-chain bridges. Holders of Nervos CKByte and ada will be able to transact both currencies interchangeably. Nervos users will also be able to take advantage of Cardano’s native asset standard to create tokens that can be ported and used across both networks. On top of this, the bridge enables developers on both chains gain access to services and features to expand their DApp ecosystem and user bases. Blockchain bridge development is still in its infancy, and it may take considerable time to turn into a full-fledged application suitable for banks.

trustless bridges blockchain

This platform was developed by the Germany-based Tixl organization, which rebranded as the Autobahn Network in March 2022. Cross-Chain Bridge has support for bridging both tokens and NFTs across multiple networks. In February 2022, cross-chain bridge platform Wormhole was the victim of an attack in which the threat actor stole 120,000 wrapped Ethereum tokens — worth an estimated $320 million at the time of the theft. The token transfer does not take place literally; rather, when a token is needed to transfer from one blockchain to another, it is burned on the first, and an equivalent token is minted on the other. XCLAIM – XCLAIM is a framework for achieving trustless and efficient cross-chain exchanges using cryptocurrency-backed assets.

Nervos Partnership To Build The First Cross

In February 2020 RSK successfully launched a token bridge between its Bitcoin-powered smart contracts and the Ethereum network. The emergence of decentralized finance can significantly reduce the gap between cryptocurrency and the traditional What is a Blockchain Bridge financial system. Moreover, according to experts, DeFi solutions are able to close the issue of cryptocurrency integration into the financial world even faster than the leaders of the payment industry, such as PayPal or Coinbase.

The Interlay team has written a specification on a Bitcoin bridge that is based on theXCLAIM design paper. It allows holders of BTC to “teleport” their assets to Polkadot as PolkaBTC, and holders of PolkaBTC to burn their assets for BTC on the Bitcoin chain. Given the generality of blockchain platforms with Turing-complete smart contract languages, it is possible to bridge Kusama and any other smart contract capable blockchain. With fiat currency there are many established ways for individuals and businesses to exchange money, creating a globally available and interoperable system of financial payments.

Different networks also have varying fees, which can be volatile and change quickly. Another example of a blockchain bridge is the RSK token bridge, which provides an interface between Bitcoin and Ethereum to transfer assets. Public and private blockchain bridges also fall into two categories, either Trustless Bridges or Federated Bridges.

When developers move to other blockchain networks which are small and less expensive one through bridges, limelight on small blockchains. Blockchain bridge tackles the issue by building interconnected links that enable communication and interaction between two blockchain systems. Exchange across different blockchains for cryptocurrency is possible without a cross-chain bridge, but it is expensive and more time-consuming. Without the use of a cross-chain bridge, users have to first convert a cryptocurrency token into a fiat currency, which often involves fees. They then use currency to get the other desired type of cryptocurrency, incurring more fees and taking time. Using the bridge when a user transfers tokens, the bridge’s smart contract locks the originals and mints a corresponding amount of new tokens on the other chain.

Benefits Of Blockchain Bridges

While Bitcoin is well known, the Bitcoin blockchain doesn’t have the same smart contract features that are the foundation of the Ethereum-based blockchain. Users looking to use Bitcoin across other blockchain networks will first need to covert to Wrapped Bitcoin. This was originally run as a blockchain bridge by BitGo, and in 2022 is supported and available via a growing partner network of exchanges.

What Are Cryptocurrency Trading Bots And How Do They Work?

Edgeth Bridge – a bridge from Ethereum to Edgeware chain (a Substrate-based chain) – now defunct and not maintained, but a good example. A proven leader, successful at establishing operational excellence and building high-performance teams with a sharp focus on value creation and customer success. Opposite to the federated is a trustless system where anyone can join the platform as an agent without any permission. Bridges operate much like Blockchain under the decentralization spectrum and also bifurcated in two subjective bridges categories.

An example of a network that would be well-suited for higher-order protocols would be Bitcoin, since it does not support smart-contracts and it’s not based on Substrate. Wormhole locks in an origin token with a smart contract, wrapping the coin in a Wormhole minted token on the target blockchain. The Syscoin-Ethereum Blockchain is also a well-known example of the Trustless bridge, which allows for trustless interactions between the Ethereum and Syscoin networks. Like Wanchain Syscoin is also a forked blockchain from Bitcoin, the platform uses the blockchain to remove the middleman in business whose native token Syscoin used to pay for goods on the marketplace.

In a truly interoperable blockchain ecosystem, tokens, data and smart contracts could potentially travel between many different platforms. Those who are already familiar with Ethereum may know of the now archived Parity Bridge and the efforts being made to connect PoA sidechains to the Ethereum mainnet. The Parity bridge is a combination of two smart contracts, one deployed on each chain, that allow for cross-chain transfers of value. As an example of usage, the initial Parity Bridge proof of concept connects two Ethereum chains, main and side. Ether deposited into the contract on main generates a balance denominated in ERC-20 tokens on side. Conversely, ERC-20 tokens deposited back into the contract on side can free up Ether on main.


Leave a Reply