Cross-Chain Payment Channel Off-Chain Transaction Validation
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Solution Overview
Problem
Current blockchain systems face scalability issues due to limitations in consensus algorithms, sharding, and cross-chain transactions, leading to high latency and low throughput, particularly in permissionless networks and sharded systems.
Innovation Solution
The implementation of a general-purpose Cross-Chain Payment Channel (CCPC) and Cross-Shard Payment Channel (CSPC) protocols, which enable fund transfers and cross-shard transactions off-chain by establishing payment channels between accounts on different blockchains or shards, breaking down funding and withdrawal transactions into multiple steps to ensure secure formation and termination, and utilizing Merkle proofs for validation and authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If payment channels are established between distinct ledgers for cross-chain transactions, then transaction throughput is improved and latency is reduced, but system complexity and security validation requirements increase
Solution Approach 1:
The patent introduces payment channels as intermediary structures between distinct ledgers, allowing transactions to be conducted off-chain through balanced proof validation. This mediator mechanism enables high-speed cross-chain transactions without directly burdening the main ledgers, thus improving throughput while managing complexity through standardized validation protocols.
Solution Approach 2:
The patent segments the transaction processing into on-chain funding transactions and off-chain balanced proof transactions. By dividing the transaction lifecycle into these distinct phases, the system achieves high throughput for frequent transactions while maintaining security through periodic on-chain settlements, effectively managing the complexity-throughput tradeoff.
2Reliability
If multiple funding transactions are recorded on the main blockchain to establish payment channels, then security and reliability are improved, but transaction latency and processing time increase
Solution Approach 1:
The patent performs preliminary security validation through balanced proof mechanisms and validation rules before transactions are finalized on-chain. By pre-validating transaction integrity and balance consistency off-chain, the system reduces the need for repeated on-chain verification, thereby maintaining security while minimizing latency.
Solution Approach 2:
The patent enables continuous off-chain transaction processing through payment channels once established. Multiple balanced proof transactions can be executed continuously without returning to the main blockchain, maintaining security through validation rules while eliminating repeated on-chain processing delays.
3Reliability
If cross-shard transactions are processed through the main blockchain, then consistency and reliability are maintained, but transaction speed and throughput are reduced
Solution Approach 1:
The patent introduces payment channels as intermediary structures between shards, enabling cross-shard transactions to be processed off-chain through balanced proof validation. This mediator approach maintains consistency through validation rules while achieving high transaction speeds without burdening the main blockchain.
Solution Approach 2:
The patent extracts frequent cross-shard transactions from the main blockchain processing and moves them to off-chain payment channels. By taking out these transactions and processing them through validated payment channels, the system maintains consistency through periodic settlements while dramatically improving transaction speed.
4Productivity
If payment channels enable off-chain transactions, then transaction throughput is increased, but validation complexity and security requirements increase
Solution Approach 1:
The patent changes the validation parameters from full on-chain verification to balanced proof validation with validation rules. By adjusting the verification parameters to accept cryptographically signed balanced proofs with predefined validation rules, the system achieves high throughput while managing validation complexity through standardized, efficient verification mechanisms.
Data Source
AI summary
Embodiments herein disclose a formation and termination mechanism for a general-purpose Cross-Chain Payment Channel (CCPC) protocol, wherein the CCPC protocol can execute fund transfers between two accounts residing in different blockchains off-chain by building a payment channel between the two accounts and breaking down the funding and withdrawal transactions into multiple transactions. Embodiments herein disclose a formation and termination mechanism for a general-purpose Cross-Shard Payment Channel (CSPC) protocol in a sharding system to perform cross-shard transactions, wherein a payment channel is built between accounts from two shards, which would dramatically reduce the number of actual cross-shard transactions recorded at the layer 1 blockchain, resulting in lower latency of cross-shard transactions, as compared to existing sharding schemes.