Nonce Definition - Glossary

Nonce is a randomly generated number used in blockchain transactions to ensure uniqueness and prevent replay attacks.

Nonce is a term in blockchain technology that refers to a random or pseudo-random number used only once in cryptographic communication. It ensures that each transaction is unique, preventing duplication or replay attacks. In the context of blockchain mining, a nonce is a number miners solve for in order to validate a block. By adjusting the nonce, miners attempt to produce a hash with certain characteristics, such as a specific number of leading zeros. This process is crucial for maintaining the security and integrity of blockchain networks.