Non-Terminal Payment State
A non-terminal payment state is any state from which the payment lifecycle is expected or allowed to transition to another state before…
Glossary terms starting with N
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Non-Transferable Token
A non-transferable token is a token whose contract or protocol prevents ordinary holder-to-holder transfer after issuance. It can represent identity, reputation, credentials,…
Non-Validating Node
A non-validating node is a blockchain node that does not independently perform full protocol validation of every block, transaction, or state transition…
Nonce
A nonce is a number or value intended for one-time use in a cryptographic or blockchain process. Depending on the protocol, it…
Nonce Account
A nonce account is a Solana System Program account that stores a durable nonce and authority for delayed or offline-signed transactions. The…
Nonce Challenge
A nonce challenge is a fresh, usually unpredictable value that one party asks another party to sign or otherwise process to prove…
Nonce Gap
A nonce gap occurs in an account-based blockchain when a transaction with a higher sequence nonce is submitted while one or more…
Nonce Replacement
Nonce replacement is the submission of a new account-based blockchain transaction using the same nonce as an earlier pending transaction, usually with…
Nonce Reuse Attack
A nonce reuse attack exploits the repeated use of a value that a cryptographic protocol requires to be unique, potentially revealing private…
Null Address
A null address is a reserved or conventional blockchain address used to represent no valid recipient, an unset value, or an operation…