Cross-Ledger Token Verification Mediation Contracts
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Solution Overview
Problem
Existing systems fail to guarantee that tokens with usage limitations are recognized and used correctly across different distributed ledgers, leading to potential misuse of assets when transferred between them.
Innovation Solution
A method involving the issuance of cryptographic tokens with usage limitations on a first distributed ledger, their transfer to a mediation contract, and subsequent verification on the issuer contract to ensure compliance with specified usage, allowing for secure transfer and use across multiple ledgers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cryptographic tokens are transferred across multiple distributed ledgers, then token versatility and adaptability are improved, but token reliability and usage limitation enforcement deteriorate
Solution Approach 1:
The patent introduces intermediary contracts (mediation contracts and verification contracts) that act as mediators between the token issuer contract and cross-ledger transactions. These intermediary contracts enforce usage limitations by verifying transaction purposes and coordinating between different distributed ledgers, thus maintaining reliability while enabling versatility.
2Reliability
If usage limitations are strictly enforced on cryptographic tokens, then token reliability is improved, but device complexity and system complexity increase
Solution Approach 1:
The patent segments the complex verification system into multiple specialized contracts with distinct functions: an issuer contract that defines usage limitations, mediation contracts that handle cross-ledger transfers, and verification contracts that enforce limitations. This segmentation distributes complexity across modular components rather than concentrating it in a single system.
Solution Approach 2:
The verification contracts automatically enforce usage limitations by autonomously verifying transaction purposes against predefined rules without requiring external intervention. The system self-regulates token usage through automated smart contract execution, reducing the need for complex external verification mechanisms.
3Reliability
If cryptographic tokens are issued with usage limitations, then token reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-defining usage limitations and verification rules in the issuer contract before tokens are transferred. The mediation contracts are pre-configured with the necessary verification logic, so that when tokens are transferred across ledgers, the enforcement mechanism is already in place and operational, simplifying the actual transfer process.
Data Source
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AI summary
In an embodiment, a cryptographic token with usage limitations is issued, via a first issuer contract on a first distributed ledger, to a user account. The cryptographic token is transferred from the user account to a first mediation contract. A first transaction that is associated with a transfer of the cryptographic token from the first mediation contract to a second mediation contract on a second distributed ledger, is detected. A second transaction that is associated with a use of the cryptographic token on the second distributed ledger is detected. A request to the first issuer contract on the first distributed ledger is issued to determine whether the second transaction satisfies the usage limitations. A Verification result that indicates that the second transaction satisfies the usage limitations is received. A digital asset is transferred to a seller account on a third distributed ledger based on the received verification result.