IP Library Granted Patent US 10,367,645
Granted Patent B2
US 10,367,645 · App. 15/334,728 · Granted Jul 30, 2019

Proof-of-work for smart contracts on a blockchain

Inventors: Sampath Dechu (Bangalore, IN); Ramachandra Kota (Bangalore, IN); Pratyush Kumar (Bangalore, IN)
Assignee: International Business Machines Corporation
H04L9/3239H04L2209/38
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Quick Facts
Patent No.
US 10,367,645
App. No.
15/334,728
Granted
Jul 30, 2019
Kind
B2
Abstract

A blockchain configuration may be used to store a distributed ledger for information security and accessibility. One example method of operation may include determining a proof-of-work via a device and using a predefined set of nonce values when determining the proof-of-work, storing the proof-of-work on a blockchain, and broadcasting the proof-of-work as a broadcast message.

Claims (39)

1. A method, comprising:

retrieving, via a device, a predefined set of nonce values that are derived based on predefined data to nonce transformations, obtained over a predefined period of time, on predefined data fields of eligible measurement blocks (EMBs) that are subset of measurement blocks associated with the device on a blockchain;

calculating, via the device, a proof-of-work using the predefined set of nonce values;

storing, via the device, the proof-of-work on the blockchain; and

broadcasting, via the device, and to the blockchain, the proof-of-work as a broadcast message.

2. The method of claim 1 , wherein the device is an Internet of Things (IoT) compatible device.

3. The method of claim 1 , further comprising:

determining the predefined set of nonce values from predefined data fields of the EMBs.

4. The method of claim 1 , wherein the broadcast message comprises:

a nonce reference block (NRB) used to derive the nonce values, wherein the NRB references one or more of the EMBs used to obtain the nonce values.

5. The method of claim 4 , further comprising:

verifying that the NRB is part of the EMBs for the device.

6. The method of claim 1 , wherein the proof-of-work is stored in a smart contract.

7. An apparatus, comprising:

a processor configured to:

retrieve a predefined set of nonce values that are derived based on predefined data to nonce transformations, obtained over a predefined period of time, on predefined data fields of eligible measurement blocks (EMBs) that are subset of measurement blocks associated with the device on a blockchain;

determine a proof-of-work using the predefined set of nonce values;

store the proof-of-work on a blockchain; and

cause the proof-of-work to be broadcast, as a broadcast message, to the blockchain.

8. The apparatus of claim 7 , wherein the device is an Internet of Things (IoT) compatible device.

9. The apparatus of claim 7 , wherein the processor is further configured to:

determine the predefined set of nonce values from predefined data fields of the EMBs.

10. The apparatus of claim 7 , wherein the broadcast message comprises:

a nonce reference block (NRB) used to derive the nonce values, wherein the NRB references one or more of the EMBs used to obtain the nonce values.

11. The apparatus of claim 10 , wherein the processor is further configured to:

verify that the NRB is part of the EMBs for the device.

12. The apparatus of claim 7 , wherein the proof-of-work is stored in a smart contract.

13. A non-transitory computer readable medium configured to store at least one instruction that when executed by a processor of a device implementing a blockchain causes the processor to perform:

retrieving, via a device, a predefined set of nonce values that are derived based on predefined data to nonce transformations, obtained over a predefined period of time, on predefined data fields of eligible measurement blocks (EMBs) that are subset of measurement blocks associated with the device on a blockchain;

calculating, via the device, a proof-of-work using the predefined set of nonce values;

storing the proof-of-work on a blockchain; and

broadcasting the proof-of-work as a broadcast message to the blockchain.

14. The non-transitory computer readable medium of claim 13 , wherein the device is an Internet of Things (IoT) compatible device.

15. The non-transitory computer readable medium of claim 13 , further configured to store at least one instruction that when executed by the processor causes the processor to perform:

determining the predefined set of nonce values from predefined data fields of the EMBs.

16. The non-transitory computer readable medium of claim 13 , wherein the broadcast message comprises:

a nonce reference block (NRB) used to derive the nonce values, wherein the NRB references one or more of the EMBs used to obtain the nonce values.

17. The non-transitory computer readable medium of claim 16 , further configured to store at least one instruction that when executed by the processor causes the processor to perform:

verifying that the NRB is part of the EMBs for the device, and wherein the proof-of-work is stored in a smart contract.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2016
From: DECHU, SAMPATH; KOTA, RAMACHANDRA; KUMAR, PRATYUSH
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 040139/0523 →
Continuity (1)
Related Publication 20180115425A1 · Apr 26, 2018
Cited By (4)
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