FIELD: blockchains.
SUBSTANCE: invention relates to a system and methods for generating a privileged blockchain transaction and validating a block in a blockchain. In the method, a privileged transaction is generated by a user by means of a first blockchain node, a cryptographic signature using the user's private key is added to the privileged transaction, thereby creating a signed privileged transaction, the signed privileged transaction is broadcasted to a plurality of other nodes in the blockchain, the other nodes checking whether the user is allowed to execute a privileged transaction, wherein the permission to perform the privileged transaction was stored on the blockchain before the privileged transaction was generated, the permission being stored as a transfer transaction on the blockchain, and the transfer transaction granting the permission comes from a trusted wallet.
EFFECT: increase in the reliability and security of transactions in the blockchain.
9 cl, 2 dwg
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