Patent ID: 11956357
Assignee: EBAY INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. A system comprising:
one or more processors; and
one or more memory devices in communication with the one or more processors, the one or more memory devices having computer-readable instructions stored thereupon that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
generating a first block on a blockchain, the first block corresponding to a cryptographic key;
securely modifying the first block to include metadata describing a key source for the cryptographic key;
generating a second block on the blockchain, the second block corresponding to a first key transaction with the cryptographic key;
linking the second block to the first block; and
securely modifying the second block to include metadata describing the first key transaction with the cryptographic key.