A piece of data attached to a transaction output in Cardano's eUTxO model. The datum acts like state that travels with the output: a smart contract sees it whenever someone tries to spend the output and decides, based on its contents plus the redeemer, whether to allow the spend.
Inline datums (introduced with the Vasil hard fork) store the data directly on the output; earlier outputs stored only a hash of the datum, with the full data supplied later by the spending transaction.
次に読む
- RedeemerData supplied by the spending transaction that tells a smart contract what action is being attempted.用語を見る
- ValidatorThe on-chain script that decides whether a transaction may spend a UTXO, mint a token or perform another scripted action. On Cardano, a smart contract is a validator.用語を見る
- eUTXOCardano's extension of the UTXO accounting model; each output can carry datum and script logic, so smart contracts express rules without the shared mutable state used by account-based chains.用語を見る
- Smart ContractSelf-executing code stored on a blockchain that automatically enforces and executes agreement terms when predefined conditions are met.用語を見る