Blockchain Ledger Self-Correction via Validation Thread

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Solution Overview

Problem

Blockchain systems face challenges in detecting and correcting corrupted data blocks, which can lead to system failures and analytics workloads being unable to access transactions due to the immutable nature of the ledger and lack of regular validation by peer nodes.

Innovation Solution

Implementing a ledger validation thread that periodically runs on peer nodes to validate blocks, detect corrupted blocks, retrieve and validate replacement blocks from other peers, and self-correct the ledger by replacing corrupted blocks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If blockchain nodes only append new data blocks to maintain immutability, then the ledger's immutable property is preserved, but corrupted data blocks cannot be detected or corrected

Engineering Contradiction:

Improvedata integrityVSAvoidledger maintenance

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The blockchain node automatically detects corrupted data blocks through validation operations and self-corrects by retrieving valid blocks from peer nodes without requiring external intervention. The system performs self-diagnosis and self-repair, maintaining data integrity while simplifying operational complexity.

Inventive Principle:

Principle #25Self-service

2Reliability

If the ledger maintains strict immutability without modification, then cryptographic security is preserved, but system failures and malicious attacks cannot be recovered from

Engineering Contradiction:

Improvefault toleranceVSAvoidledger structure

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The system performs preliminary validation of data blocks before they are permanently committed to the ledger. By checking block validity in advance and maintaining the ability to retrieve blocks from peer nodes, the system prevents corrupted data from compromising the ledger while preserving its immutable structure.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If peer nodes do not perform regular validation, then system resources are conserved, but corrupted blocks remain undetected causing system failures

Engineering Contradiction:

Improveerror detectionVSAvoidvalidation overhead

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The blockchain node performs validation operations periodically rather than continuously, checking data blocks at scheduled intervals. This periodic validation approach detects corrupted blocks while consuming system resources efficiently, balancing reliability with energy conservation.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentEP3776208B1Runtime self-correction for blockchain ledgers

Publication Date: 2024.01.17 INTERNATIONAL BUSINESS MACHINE CORPORATION

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AI summary

An example operation may include one or more of identifying, via a ledger validation thread, a corrupted data block that is stored within a chain of blocks on a distributed ledger, selecting a blockchain peer from among a plurality of blockchain peers that have access to the distributed ledger, and retrieving a replacement data block from the selected peer, determining whether the replacement data block is valid based on one or more of a previously stored validation block associated with the chain of blocks, and, in response to determining the replacement data block is valid, replacing the corrupted data block with the replacement data block on the distributed ledger.