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What is Validator?

Crypto Terms Glossary: What is Validator?

Within the context of blockchain technology, a validator is an entity responsible for verifying and approving transactions submitted by users and/or blockchain clients. Each blockchain protocol has its own parameters for what constitutes an acceptable validator and how these validators operate. Most decentralized blockchain networks rely on some form of validator node to process on-chain transactions in a permissionless and distributed manner.

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