Participation Nodes in Blockchain: Upholding Network Integrity

Participation Node is a node that is present in the Algorand platform to aid in the Pure Proof of Stake (PPoS) consensus process.

What is a Participation Node?

The definition of nodes from application to application varies depending on the purpose. In the case of a blockchain network, nodes are devices that are connected to the network and have an IP address. If a node is generally a connection endpoint, this means that any users and programs can establish a connection to the blockchain through nodes. Consequently, nodes serve as a redistribution point for communication.

There are two types of nodes in Algorand: relay nodes and participation nodes. A relay node is a network node that transmits protocol messages between participating nodes in a timely and efficient manner.

A participation node is one of the most powerful nodes in Algorand and helps the Alog consensus process by introducing new blocks. Participation keys are used to sign consensus protocol messages and are stored on participation nodes.

Considering that there is no central control over who has access to a decentralized registry: anybody can manage a node. The majority of public blockchains tend to be fast and decentralized: with people coming and going and nodes constantly shrinking and growing. Certain blockchains allow nodes to operate without the involvement of universal consensus. This is the case in delegated decision proof (dPoS) blockchains, where stakeholders vote on who will create the blockchain. But not everyone has the desire and skills to run a node.

Participation nodes use Algorand’s consensus mechanism to communicate with each other via relay nodes. Algorand’s PPoS consensus method relies on a two-phase blockchain creation procedure involving proposing and voting. Participation nodes are managed by relay nodes, which provide communication between them, but do not participate directly in the proposal and voting processes.

To become a participation node, each member of the network must make a proposal to ALGO and generate a valid participation key.

Participation nodes authenticated by the user’s participation key bid and vote on blocks on behalf of the user’s share in the consensus process. If the relevant participation keys are placed in a single participation node, it can represent multiple users. It can be managed by anyone. This keeps the Algorand blockchain secure, as long as enough users honestly manage the consensus process, the blockchain will never split, even if all the relay nodes are damaged.

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