Parachains

Parachains are application-specific blockchains attached to the Relay Chain in the Polkadot and Kusama networks. Parachains can be built from modular components for specific use cases, but outsource their security and some other resources to the main Relay Chain.

Each parachain—or “parallelized blockchain”—is an entire blockchain in and of itself, with its own logic and features, and most often built using the Substrate framework. The Relay Chain is responsible for achieving consensus and moving parachain blocks towards finality in the Polkadot and Kusama networks.

The Relay Chain connects these parachains with a shared state and validation logic. This shared security model across chains, and the chains’ corresponding interoperability, represents a big draw for developers to work with the Polkadot ecosystem.

The parachain model is akin to a hub and spoke system; the relay chain functions as a hub, guaranteeing security and continuity for the system, while the parachains function as spokes, handling the flow of transaction traffic, each optimized with their own application-specific logic, and each interoperable via their mutual hub.


Parachain slot auctions

Full parachain support is expected to launch on Polkadot and Kusama by the end of 2021. Approximately 100 slots on each network will be available via auction to operate as a parachain.


How to get involved

Parachain developers will have the ability to launch a so-called “crowdloan” to build up the bidding power needed to win a parachain slot auction. Community members will be able to commit their DOT or KSM to a crowdloan module on-chain, in exchange for a native parachain token. Should the parachain candidate not win the auction and launch, the funds are returned to crowdloan participants.

Contributing to a parachain crowdloan gives DOT and KSM holders an opportunity to show support for the Substrate projects they’re excited about, to have a say in which projects win parachain slots, and to receive and use new native parachain tokens that will have varying degrees of utility, depending on each parachain’s specifications. Some parachains may offer staking and nominating, token-driven governance, and other types of native utility (such as collateral in a liquidity pool). Potential crowdloan contributors should consider their personal preference for potential token-based opportunities when deciding which parachain projects to support.


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About Bison Trails


Pioneering Blockchain Infrastructure®

Bison Trails is a blockchain infrastructure platform-as-a-service (PaaS) company based in New York City. We built a platform for anyone who wants to participate in 23 new chains effortlessly.

We also make it easy for anyone building Web 3.0 applications to connect to blockchain data from 33 protocols with Query & Transact (QT). Our goal is for the entire blockchain ecosystem to flourish by providing robust infrastructure for the pioneers of tomorrow.

In January, 2021, we announced Bison Trails joined Coinbase to accelerate our mission to provide easy-to-use blockchain infrastructure, now as a standalone product line. The Bison Trails platform will continue to support our customers. With Coinbase’s backing, we will enhance our infrastructure platform and make it even easier to participate in decentralized networks and build applications that connect to blockchain data.

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