Blockchain implementing reliability database
View Patent ↗An example operation may include one or more of receiving a request to modify a reliability value of an off-chain data source to generate a modified reliability value, determining whether a consensus on the modified reliability value has been received among a plurality of peer nodes, and in response to a determination that the consensus has been received, updating a storage to reflect the modified reliability value associated with the off-chain data source, and storing an identification of the modified reliability value within a block among a hash-linked chain of blocks on a distributed ledger shared among the plurality of peer nodes.
1. A computing system in a blockchain network, the computing system comprising:
a database that is part of a blockchain ledger of the blockchain network, the database storing reliability data corresponding to a particular category of data and comprising a reliability value for an off-chain data source that is external to the blockchain network, wherein the reliability value indicates a level of trust for the off-chain data source, wherein the reliability data comprises an average value of a plurality of other reliability values corresponding to the particular category of data retrieved from a plurality of nodes of the blockchain network; and
a processor that, when executing instructions stored in an associated memory, is configured to:
receive a notification of a modification to the reliability data stored in the database;
in response to the notification, capture a snapshot of the reliability data within the database based on the notification, where the snapshot comprises for each combination of a node of the plurality of nodes and the particular category of data a corresponding key, a corresponding reliability value identified by the key, and a corresponding timestamp; and
store the snapshot of the reliability data in the blockchain ledger.
2. The computing system of claim 1 , wherein the reliability data comprises:
current key values of a plurality of attributes of the reliability value.
3. The computing system of claim 2 , wherein the current key values comprise:
a current key value for a category type of the off-chain data source.
4. The computing system of claim 1 , wherein the current key values comprise:
the reliability value.
5. The computing system of claim 4 , wherein the reliability value comprises:
a general reliability value that is applicable to all categories of data provided by the off-chain data source.
6. The computing system of claim 1 , wherein the processor is further configured to:
hash the snapshot prior to storing the snapshot in the blockchain.
7. The computing system of claim 1 , wherein the notification indicates that a consensus has been reached with respect to the change modification to the reliability data.
8. The computing system of claim 7 , wherein the processor is further configured to:
store the modified reliability data in the blockchain ledger in response to the consensus.
9. A method comprising:
storing, by a node in a blockchain network, reliability data corresponding to a particular category of data and comprising a reliability value for an off-chain data source that is external to the blockchain network, wherein the reliability value indicates a level of trust for the off-chain data source, wherein the reliability data comprises an average value of a plurality of other reliability values corresponding to the particular category of data retrieved from a plurality of nodes of the blockchain network;
receiving, by the node, a notification of a change to the reliability data stored in the database;
in response to receiving the notification, capturing, by the node, a snapshot of the reliability value within the database based on the notification, where the snapshot comprises for each combination of a node of the plurality of nodes and the particular category of data a corresponding key, a corresponding reliability value identified by the key, and a corresponding timestamp; and
storing, by the node, the snapshot of the reliability data in the blockchain ledger.
10. The method of claim 9 , wherein the reliability data comprises:
current key values of a plurality of attributes of the reliability data.
11. The method of claim 10 , wherein the current key values comprise:
a current key value for a category type of the off-chain data source.
12. The method of claim 9 , wherein the current key values comprise:
the reliability value.
13. The method of claim 12 , wherein the reliability value comprises:
a general reliability value that is applicable to all categories of data provided by the off-chain data source.
14. The method of claim 9 , further comprising:
hashing the snapshot prior to storing the snapshot in the blockchain.
15. The method of claim 9 , wherein the notification indicates that a consensus has been reached with respect to the change modification to the reliability data.
16. The method of claim 15 , further comprising:
storing the modified reliability data in the blockchain ledger in response to the consensus.
17. A non-transitory computer-readable storage medium comprising instructions that, when executed by a processor, cause the processor to perform:
storing, by a node in a blockchain network, reliability data corresponding to a particular category of data and comprising a reliability value for an off-chain data source that is external to the blockchain network, wherein the reliability value indicates a level of trust for the off-chain data source, wherein the reliability data comprises an average value of a plurality of other reliability values corresponding to the particular category of data retrieved from a plurality of nodes of the blockchain network;
receiving, by the node, a notification of a change to the reliability data stored in the database;
in response to receiving the notification, capturing, by the node, a snapshot of the reliability value within the database based on the notification, where the snapshot comprises for each combination of a node of the plurality of nodes and the particular category of data a corresponding key, a corresponding reliability value identified by the key, and a corresponding timestamp; and
storing, by the node, the snapshot of the reliability data in the blockchain ledger.
18. The non-transitory computer-readable storage medium of claim 17 , wherein the reliability data comprises:
current key values of a plurality of attributes of the reliability data.
19. The non-transitory computer-readable storage medium of claim 17 , wherein the current key values comprise:
a current key value for a category type of the off-chain data source.
20. The non-transitory computer-readable storage medium of claim 17 , wherein the current key values comprise:
the reliability value.
21. The non-transitory computer-readable storage medium of claim 20 wherein the reliability value comprises:
a general reliability value that is applicable to all categories of data provided by the off-chain data source.
22. The non-transitory computer-readable storage medium of claim 17 , further comprising:
hashing the snapshot prior to storing the snapshot in the blockchain.
23. The non-transitory computer-readable storage medium of claim 17 , wherein the notification indicates that a consensus has been reached concerning the change modification to the reliability data.