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Validator

Validators secure the Relay Chain by staking DOT, validating proofs from collators and participating in consensus with other validators.

These participants play a crucial role in adding new blocks to the Relay Chain and, by extension, to all parachains. This allows parties to complete cross-chain transactions via the Relay Chain. Parachain validators participate in some form of off-chain consensus, and submit candidate receipts to the tx pool for a block producer to include on-chain. The Relay Chain validators guarantee that each parachain follows its unique rules and can pass messages between shards in a trust-free environment.

Validators perform two functions:

  1. Verifying that the information contained in an assigned set of parachain blocks is valid (such as the identities of the transacting parties and the subject matter of the contract).
  2. Participating in the consensus mechanism to produce the Relay Chain blocks based on validity statements from other validators. Any instances of non-compliance with the consensus algorithms result in punishment by removal of some or all of the validator’s staked DOT, thereby discouraging bad actors. Good performance, however, will be rewarded, with validators receiving block rewards (including transaction fees) in the form of DOT in exchange for their activities.

Guides

Other References

Security / Key Management

Monitoring Tools

Validator Stats

  • HashQuark Staking Strategy - The HashQuark staking strategy dashboard helps you choose the optimal set-up to maximize rewards, and provides other useful network monitoring tools.
  • Polkastats - Polkastats is a cleanly designed dashboard for validator statistics.
  • YieldScan - Staking yield maximization platform, designed to minimize effort.
  • Subscan Validators Page - Displays information on the current validators - not as tailored for validators as the other sites.