Unit Network


Polkadot's parachains are specialised blockchains that run in parallel to the main network, offering shared security, scalability, and customisability benefits for a range of use cases.


Polkadot is a blockchain platform designed to enable interoperability between different blockchains and networks. One of the key components of Polkadot's architecture is the parachain, which is a specialized blockchain that runs in parallel to the main Polkadot network. In this overview, we will explore the fundamentals of a parachain as defined by Polkadot and the Web3 Foundation.


A parachain is essentially a blockchain that operates as a parallel network to Polkadot's main chain, known as the relay chain. Parachains are designed to support a range of use cases, including smart contracts, decentralized finance, and identity management. Each parachain has its own set of rules and governance mechanisms, and can be customized to suit specific needs.
One of the key benefits of using a parachain is the ability to leverage Polkadot's security and scalability features. Because each parachain is connected to the relay chain, it can benefit from Polkadot's shared security model. This means that the security of the network is distributed across all the parachains, making it much more difficult for malicious actors to compromise the system.
Parachains also benefit from Polkadot's scalability features, which allow the network to process a much higher number of transactions per second than traditional blockchains. This is achieved through a mechanism known as sharding, where the network is divided into smaller pieces, each of which can process transactions independently.
To participate in the Polkadot network, projects can bid for a parachain slot through a decentralized auction process. Once a slot is secured, the project can deploy its own customized blockchain on the parachain and begin interacting with other chains on the Polkadot network.
An image detailing how the parachain works.

Ecosystem Project Directory

Explore the exciting world of Polkadot and Kusama parachains through the comprehensive online directory, which includes projects, auctions, crowdloans, news and events.