| 摘要 |
Distributed crypto currency systems and methods include receiving a payer public key that is associated with a current transaction between a payer and a payee. It is determined whether the payer public key is included in a plurality of previous transaction public keys that are each associated with a respective unauthorized crypto currency transfer as a result of a previous transaction. In response to determining that the payer public key is included in the plurality of previous transaction public keys, a message is sent to the payee to not proceed with the current transaction. In response to determining that the payer public key is not included in the plurality of previous transaction public keys, a message is sent to the payee to proceed with the current transaction. |
