Second-Layer Transaction Monitoring for Crypto Laundering Detection
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Solution Overview
Problem
Second layer network protocols in blockchain systems complicate the tracking of cryptocurrency transactions, making it difficult to detect and prevent laundering activities.
Innovation Solution
Implement a system that tracks cryptocurrency transactions off-chain using second layer network protocols, enabling monitoring and detection of laundering activities through a framework that includes bi-directional payment channels and transaction validation mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If second layer network protocols are implemented to enable off-chain transactions, then transaction speed and scalability are improved, but tracking and detecting laundering activities becomes more difficult
Solution Approach 1:
The patent introduces monitoring nodes as intermediaries in the second layer network. These nodes observe and record transactions occurring through payment channels and other off-chain mechanisms, enabling tracking without directly interfering with the fast off-chain transaction flow. The monitoring nodes act as mediators between the private off-chain transactions and the public blockchain ledger.
Solution Approach 2:
The system implements feedback mechanisms where monitoring nodes continuously observe transactions and provide information back to the network about potential laundering activities. This feedback loop enables real-time detection and response to suspicious patterns while maintaining the speed benefits of off-chain transactions.
2Productivity
If second layer network protocols are implemented for off-chain transactions, then scalability is improved, but transaction tracking capability deteriorates
Solution Approach 1:
The patent employs preliminary actions by having monitoring nodes set up in advance to observe and record transactions before they are finalized off-chain. This proactive monitoring ensures that transaction information is captured and preserved even as the network scales to handle more off-chain transactions.
Solution Approach 2:
Monitoring nodes serve as intermediaries that maintain transaction information without requiring all transaction details to be permanently stored on the main blockchain. This intermediary layer preserves scalability by keeping the main chain lightweight while preventing information loss through distributed monitoring records.
3Measurement precision
If comprehensive monitoring framework is implemented to detect laundering, then detection capability is improved, but system complexity increases
Solution Approach 1:
The monitoring system is segmented into independent monitoring nodes that each perform specific observation and reporting functions. This segmentation allows the detection capability to be distributed across multiple simple nodes rather than requiring a single complex centralized system, improving detection while managing complexity through modular architecture.
Data Source
AI summary
Methods and systems are presented for tracking activities that occur off of a first layer blockchain in in a second layer network built on the first layer blockchain. In one embodiment, a computer system determines that a transfer of cryptocurrency from a first node to a second node has transpired in the second layer network based on querying channel capacities in the second layer network. The computer system determines a first public address for the first node based on information associated with a first channel that connects the computer system and the first node in the second layer network, and determines a second public address for the second node based on information associated with a second channel that connects the computer system and the second node in the second layer network. The first public address and the second public address are used to monitor activity in the first layer blockchain.