Patent ID: 11940971
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A method comprising:
periodically updating, by a node in a blockchain network, a reliability value of an external data source that is external to the blockchain network, wherein the reliability value is stored in a blockchain ledger of the blockchain network and is based on reliability data from one or more services;
receiving, by the node, a request from a client in the blockchain network for the reliability value of the data source;
retrieving, by the node, the reliability value from a key value storage implemented in a state database of the blockchain ledger, wherein the key value storage stores the reliability value, a key identifying the reliability value, and a timestamp corresponding to the reliability value;
determining, by the node, whether a consensus exists among a plurality of peers of the blockchain ledger with respect to the retrieved reliability value; and
in response to a determination that the consensus exists, providing, by the node, the retrieved reliability value to the client.