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Glossary

Parachain

November 21, 2023 - Around 3 mins mins to read

Parachains are a fundamental component of the Polkadot network, a multi-chain platform that aims to enable interoperability and scalability between different blockchains. In simple terms, parachains are individual blockchains that operate in parallel within the Polkadot ecosystem.

Unlike traditional blockchains that function independently, parachains are connected to Polkadot in a “hub and spoke” architecture. This means that developers can create their own independent networks using the same framework as the main chain. The technology behind parachains is supported by Substrate, a framework for building blockchains with web3 functionality that is also used for building and developing Polkadot and its cousin network, Kusama.

The main purpose of parachains is to enable developers to create specialized blockchains with their own unique functionality, governance systems, and tokens. Each parachain is connected to the main Polkadot network through the central Relay Chain, which acts as the backbone of the entire ecosystem. This connection allows parachains to function independently while remaining connected to the larger network.

Parachains also benefit from the security provided by the Polkadot network. Unlike standalone blockchains that need their own validator community to maintain security, parachains leverage the existing validator model of Polkadot. Validators play a crucial role in securing the network by verifying transactions, creating new blocks, and maintaining the integrity of the overall system.

Collator nodes are another important component of the parachain architecture. While validators focus on securing the network, collator nodes assist validators in maintaining the parachains. They keep a record of parachain data, select new block candidates, and confirm the inputs and status of a parachain alongside validators. This division of labor ensures efficient and secure operation of both the main chain and the parachains.

Parachains can interact with the main chain and other parachains through a mechanism called cross-chain message passing (XCMP). This allows for seamless communication and transfer of assets between different chains within the Polkadot network. By enabling interoperability, Polkadot aims to foster collaboration and resource sharing among different blockchains, ultimately enhancing the overall functionality and scalability of the network.

One of the key advantages of parachains is their ability to have different economics compared to the entire Polkadot ecosystem. Parachain projects have the flexibility to set their own transaction fees based on the preferences of their respective communities. This allows them to tailor the economics of their parachain to meet the specific needs of their users.

Overall, parachains are a powerful tool within the Polkadot network, enabling developers to create customized and scalable blockchains while leveraging the security and interoperability provided by the main chain. By fostering collaboration and innovation, parachains play a vital role in the advancement of blockchain technology and the realization of the decentralized web.

Author

Coincu

Glossary

Parachain

Parachains are a fundamental component of the Polkadot network, a multi-chain platform that aims to enable interoperability and scalability between different blockchains. In simple terms, parachains are individual blockchains that operate in parallel within the Polkadot ecosystem.

Unlike traditional blockchains that function independently, parachains are connected to Polkadot in a “hub and spoke” architecture. This means that developers can create their own independent networks using the same framework as the main chain. The technology behind parachains is supported by Substrate, a framework for building blockchains with web3 functionality that is also used for building and developing Polkadot and its cousin network, Kusama.

The main purpose of parachains is to enable developers to create specialized blockchains with their own unique functionality, governance systems, and tokens. Each parachain is connected to the main Polkadot network through the central Relay Chain, which acts as the backbone of the entire ecosystem. This connection allows parachains to function independently while remaining connected to the larger network.

Parachains also benefit from the security provided by the Polkadot network. Unlike standalone blockchains that need their own validator community to maintain security, parachains leverage the existing validator model of Polkadot. Validators play a crucial role in securing the network by verifying transactions, creating new blocks, and maintaining the integrity of the overall system.

Collator nodes are another important component of the parachain architecture. While validators focus on securing the network, collator nodes assist validators in maintaining the parachains. They keep a record of parachain data, select new block candidates, and confirm the inputs and status of a parachain alongside validators. This division of labor ensures efficient and secure operation of both the main chain and the parachains.

Parachains can interact with the main chain and other parachains through a mechanism called cross-chain message passing (XCMP). This allows for seamless communication and transfer of assets between different chains within the Polkadot network. By enabling interoperability, Polkadot aims to foster collaboration and resource sharing among different blockchains, ultimately enhancing the overall functionality and scalability of the network.

One of the key advantages of parachains is their ability to have different economics compared to the entire Polkadot ecosystem. Parachain projects have the flexibility to set their own transaction fees based on the preferences of their respective communities. This allows them to tailor the economics of their parachain to meet the specific needs of their users.

Overall, parachains are a powerful tool within the Polkadot network, enabling developers to create customized and scalable blockchains while leveraging the security and interoperability provided by the main chain. By fostering collaboration and innovation, parachains play a vital role in the advancement of blockchain technology and the realization of the decentralized web.

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