Cross-Chain Cryptocurrency Abstraction for Single-Transaction Fees
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Solution Overview
Problem
Existing methods for transferring digital assets across different blockchain networks require multiple transactions and consume significant computational resources, leading to inefficient use of computing power and poor user experience due to the need to convert non-native cryptocurrencies for transaction fees.
Innovation Solution
A cross-chain transfer protocol (CCTP) is employed to abstract cryptocurrency from a source chain to pay transaction fees on a destination chain using a non-optimistic pull approach based on user-permitted token burning and minting, eliminating the need for multiple transactions and resource-intensive conversions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods are used to transfer digital assets across blockchain networks, then asset transfer is enabled, but multiple transactions and significant computational resources are required
Solution Approach 1:
The patent merges the cryptocurrency transfer and fee payment functions into a single atomic transaction. The cross-chain transfer protocol combines the burning of source chain tokens and minting of destination chain tokens in one operation, eliminating the need for separate conversion transactions and reducing overall computational resource consumption.
Solution Approach 2:
The cross-chain transfer protocol serves multiple functions simultaneously: it transfers digital assets between chains, pays transaction fees on the destination chain, and eliminates the need for separate currency conversion. This multi-functional approach reduces the total number of transactions and computational resources required.
2Loss of energy
If non-optimistic pull approach with user-permitted token burning is used, then computing resources are efficiently used, but the system requires complex coordination between chains
Solution Approach 1:
The patent introduces cross-chain messaging mechanisms and coordination protocols as intermediaries between source and destination chains. These intermediaries handle the complex coordination of token burning and minting operations, allowing efficient resource utilization while managing system complexity through standardized communication interfaces.
3Ease of operation
If multiple transactions are used for cross-chain asset transfer, then asset transfer is achieved, but user experience deteriorates due to the need to convert non-native cryptocurrencies
Solution Approach 1:
The patent extracts the currency conversion step from the user's transaction workflow. By handling the conversion of non-native cryptocurrencies to native tokens automatically through the cross-chain transfer protocol, the system eliminates this complexity from the user experience while maintaining secure asset transfer.
Data Source
AI summary
Implementations are directed to cryptocurrency abstraction using a cross-chain transfer protocol (CCTP) between a source chain network and a destination chain network and can include receiving a user operation that indicates a paymaster and that includes an attestation, triggering, by the paymaster, minting of a number of tokens of a cryptocurrency on a destination chain, the number of tokens corresponding to a number of tokens of the cryptocurrency burned on a source chain attested to by the attestation, receiving, by the paymaster, the number of tokens of the cryptocurrency minted on the destination chain, and accounting, by the paymaster and using at least a portion of the number of tokens of the cryptocurrency, for computing resources expended on the destination chain to execute a transaction of the user operation.