What Are Blockchain Bridges?

NFTBlackMarket $NBM

What Is a Blockchain Bridge?

A blockchain bridge is a connection that allows the transfer of tokens and or arbitrary data from one chain to another. Both chains can have different protocols, rules and governance models, but the bridge provides a compatible way to interoperate securely on both sides. ‍ There are many different designs for bridges, but they can generally be divided into two camps: more centralized bridges that rely on trust or federation, and so-called “trustless” bridges that are more decentralized. Centralized bridges rely on some type of central authority or system to operate, meaning that users are required to place trust in a mediator to use a given app or service. ‍ By contrast, trustless bridges are those in which users don’t have to place trust in a single entity or authority. Rather, the trust is placed in the mathematical truth built into the code. In a decentralized blockchain system, this truth is achieved by many computer nodes reaching a common agreement according to the rules written into the software. This removes many of the problems of centralized systems, which are open to corruption or abuse of power, by using transparency and incentivization of widespread participation. ‍ Bridges can be created to suit various purposes. They are not only capable of enabling a token on one network to be used on another network, they can also be built to exchange any type of data, including smart contract calls, decentralized identifiers, off-chain information from oracles such as stock market price feeds and much more.

For example, a chain anchoring verifiable credentials on Polkadot could be used for KYC (Know Your Customer) requirements by a gaming company built on Ethereum. Bridges allow applications to be even more decentralized, as they are no longer limited by their network of origin.

📚Name Token : NFTBlackMarket

• 📚Contract NBM: 0x12da2f2761038486271c99da7e0fb4413e2b5e38
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To further their mission of supporting a decentralized and fairer internet of the future, Web3 Foundation has supported the following bridge projects