Blockchain Locking Script for Conditional Transaction Verification
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Solution Overview
Problem
Existing blockchain transaction systems lack efficient mechanisms to enforce complex conditions on subsequent transactions, particularly in ensuring that the unlocking script of a second transaction meets the locking script of a first transaction, which is crucial for maintaining transaction integrity and security.
Innovation Solution
A method is introduced where a first blockchain transaction includes a locking script that generates and verifies a signature based on fields of the second transaction, ensuring that the second transaction is only validated if it matches a representation of the first transaction, thereby enforcing conditions through a simplified signature generation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional locking scripts are used to enforce conditions on blockchain transactions, then transaction security is maintained, but computational complexity and storage requirements increase
Solution Approach 1:
The patent creates a simplified copy of the transaction data structure called a 'representation' that contains only the essential fields needed for verification. Instead of storing and processing the full complex transaction data, nodes work with this streamlined copy that preserves the critical verification information while reducing computational overhead and storage requirements.
Solution Approach 2:
The patent extracts only the necessary fields from the complete transaction data to create the representation structure. By taking out only the essential elements (input references, output references, and relevant data) and leaving out redundant information, the system maintains security verification capabilities while significantly reducing computational complexity and storage demands.
2Reliability
If comprehensive transaction validation is performed to ensure integrity, then transaction integrity is maintained, but processing time increases
Solution Approach 1:
The patent performs preliminary actions by creating the representation of the transaction data structure before the actual validation process. This pre-processing step organizes the essential verification information in advance, so that during validation, nodes only need to check the pre-organized representation rather than parsing and validating the entire complex transaction structure, thereby reducing processing time while maintaining integrity.
3Measurement precision
If detailed transaction data is stored for verification purposes, then verification accuracy is improved, but storage requirements increase
Solution Approach 1:
The patent creates a simplified copy of the transaction data structure called a 'representation' that contains only the essential fields needed for verification. Instead of storing and processing the full complex transaction data, nodes work with this streamlined copy that preserves the critical verification information while reducing computational overhead and storage requirements.
Solution Approach 2:
The patent extracts only the necessary fields from the complete transaction data to create the representation structure. By taking out only the essential elements (input references, output references, and relevant data) and leaving out redundant information, the system maintains security verification capabilities while significantly reducing computational complexity and storage demands.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A computer-implemented method of enforcing conditions on a second blockchain transaction using a first blockchain transaction, wherein a first one of the conditions is that, when a first unlocking script of the second transaction is executed alongside a first locking script of the first transaction, a representation of the second transaction is output to memory, wherein the representation is based on a plurality of fields of the second transaction and a first output of the first transaction, and wherein the method comprises: generating the first transaction, wherein the first transaction comprises a first output, wherein the first output comprises the first locking script, and wherein the first locking script comprises: a message sub-script; a signature sub-script; a public key corresponding to a private key; and a verification sub-script.