Granted Patent B2

US 12,250,309 · App. 17/695,731 · Granted Mar 11, 2025

Inventors: Futoshi Iwama (Tokyo, JP); Takaaki Tateishi (Yamato, JP); Shunichi Amano (Katsushika, JP); Sachiko Yoshihama (Kawasaki, JP)

Assignee: International Business Machines Corporation

H04L9/0894H04L9/50

Abstract

Claims (50)

1. A computing node in a blockchain network, the computing node comprising:

a processor that, when executing instructions stored in a memory, is configured to:

in response to a request to modify a blockchain-based uniform resource indicator (BURI) stored in a distributed ledger of a blockchain of the blockchain network:

store an identification of a modification to be made to the BURI in a data block to be stored in the distributed ledger, and

store the identification in a notification board that is stored in the distributed ledger and is independent of the blockchain;

receive a request from a peer node to retrieve information from the BURI;

in response to the request to retrieve the information,

identify a chaincode ID and a chaincode version that was used by the computing node at a time that the BURI was generated,

re-instantiate the chaincode version, and

access the notification board to retrieve the information using the chaincode version that was instantiated.

2. The computing node of claim 1 , wherein the processor is further configured to:

update a set of blockchain peers that have access to the distributed ledger.

3. The computing node of claim 2 , wherein the blockchain peers are based on the modification.

4. The computing node of claim 1 , wherein the BURI comprises a URI of one or more blockchain peers.

5. The computing node of claim 4 , wherein the one or more blockchain peers have access to the blockchain.

6. The computing node of claim 1 , wherein the request to modify the BURI comprises a request to delete the BURI from the distributed ledger.

7. The computing node of claim 1 , wherein the request to modify the BURI comprises a request to modify a URI of a blockchain peer node included within the BURI.

8. A method, comprising:

receiving by a peer node in a blockchain network a request to modify a blockchain-based uniform resource indicator (BURI) stored in a distributed ledger of a blockchain of the blockchain network;

in response to the request to modify the BURI,

storing by the peer node an identification of a modification to be made to the BURI in a data block to be stored in the distributed ledger, and

storing by the peer node the identification in a notification board that is stored in the distributed ledger and is independent of the blockchain;

receiving a request from a peer node to retrieve information from the BURI;

in response to the request to retrieve the information,

identifying a chaincode ID and a chaincode version that was used by the computing node at a time that the BURI was generated,

re-instantiating the chaincode version, and

accessing the notification board to retrieve the information using the chaincode version that was instantiated.

9. The method of claim 8 , further comprising:

updating a set of blockchain peers that have access to the distributed ledger.

10. The method of claim 9 , wherein the blockchain peers are based on the modification.

11. The method of claim 8 , wherein the BURI comprises a URI of one or more blockchain peers.

12. The method of claim 11 , wherein the one or more blockchain peers have access to a blockchain of the distributed ledger.

13. The method of claim 8 , wherein the request to modify the BURI comprises a request to delete the BURI from the distributed ledger.

14. The method of claim 8 , wherein the request to modify the BURI comprises a request to modify a URI of a blockchain peer node included within the BURI.

15. A non-transitory computer-readable medium comprising instructions that, when executed by a processor of a peer node in a blockchain network, cause the processor to perform:

receiving a request to modify a blockchain-based uniform resource indicator (BURI) stored in a distributed ledger of a blockchain of the blockchain network;

in response to the request to modify the BURI,

storing an identification of a modification to be made to the BURI in a data block to be stored in the distributed ledger, and

storing the identification in a notification board that is stored in the distributed ledger and is independent of the blockchain;

receiving a request from a peer node to retrieve information from the BURI;

in response to the request to retrieve the information,

identifying a chaincode ID and a chaincode version that was used by the computing node at a time that the BURI was generated,

re-instantiating the chaincode version, and

accessing the notification board to retrieve the information using the chaincode version that was instantiated.

16. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the processor to perform:

updating a set of blockchain peers that have access to the distributed ledger, based on the modification to the blockchain-based URI.

17. The non-transitory computer-readable medium of claim 15 , wherein the BURI comprises a URI of one or more blockchain peers.

18. The non-transitory computer-readable medium of claim 17 , wherein the one or more blockchain peers have access to a blockchain of the distributed ledger.

19. The non-transitory computer-readable medium of claim 15 , wherein the request to modify the BURI comprises a request to delete the BURI from the distributed ledger.

20. The non-transitory computer-readable medium of claim 15 , wherein the request to modify the BURI comprises a request to modify a URI of a blockchain peer node included within the BURI.

Assignments (1)

Continuity (2)

References Cited (77)