Create a Single Contract Transaction

Oct 13, 2025 by wbrum.org 48 views

Current Scenario: The Inefficiencies of Multiple Transactions

In the current implementation of coinswap, each peer participating in the transaction is required to create multiple funding transactions, resulting in a complex and inefficient process. This is particularly evident when the tx_count parameter is set to 3, as each peer must break the forwarding amount into 3 random values and create a separate funding transaction for each of them.

The Edge Cases of Multiple Transactions

The current implementation introduces several edge cases that can lead to a failed coinswap transaction. Some of these edge cases include:

Insufficient UTXOs: A peer must have at least 3 UTXOs in its wallet in order to create 3 separate funding transactions. If a peer does not have sufficient UTXOs, the coinswap transaction will fail.
Increased Mining Fees: The taker is required to pay the mining fees for all the funding transactions created during the coinswap. This can result in significant costs, especially if the swap is unsuccessful.
Unsuccessful Swap: In the event of an unsuccessful swap, each peer must broadcast its own 3 contract transactions, as each peer aims to spend just a single funding UTXO. This can lead to a significant increase in the overall cost of the protocol, regardless of whether the swap was successful or not.

Proposed Solution: Simplifying the Coinswap Process

To address the inefficiencies of the current implementation, a proposed solution is to use a single funding transaction and a single contract transaction. This can be achieved by generating tx_count + 1 UTXOs from a single funding transaction, accounting for change if applicable. Similarly, a single contract transaction can be created to spend the funding UTXO.

Benefits of a Single Funding and Contract Transaction

The proposed solution offers several benefits, including:

Reduced Edge Cases: By using a single funding transaction, the edge case of insufficient UTXOs is eliminated, as each peer only needs to create a single funding transaction.
Decreased Mining Fees: The taker is only required to pay the mining fees for a single funding transaction, resulting in significant cost savings.
Simplified Protocol: The proposed solution simplifies the protocol by reducing the number of transactions required for a successful coinswap.

Implementation Details

To implement the proposed solution, the following steps can be taken:

Generate tx_count + 1 UTXOs: From a single funding transaction, generate tx_count + 1 UTXOs, accounting for change if applicable.
Create a Single Contract Transaction: Create a single contract transaction to spend the funding UTXO.
Broadcast the Transactions: Broadcast the single funding transaction and the single contract transaction to the network.

Conclusion

The proposed solution of using a single funding transaction and a single contract transaction offers several benefits, including reduced edge cases, decreased mining fees, and a simplified protocol. By implementing this solution, the coinswap process can be made more efficient and cost-effective, resulting in a more robust and reliable protocol.

Optimizing Coinswap: Use Cases and Considerations

Use Cases

The proposed solution can be applied to various use cases, including:

Cross-Chain Swaps: The proposed solution can be used for cross-chain swaps, where two or more chains are involved in the swap.
Decentralized Exchanges: The proposed solution can be used in decentralized exchanges, where users can swap assets without the need for a centralized exchange.
Token Swaps: The proposed solution can be used for token swaps, where users can swap one token for another.

Considerations

When implementing the proposed solution, several considerations should be taken into account, including:

Security: The proposed solution should be designed with security in mind, to prevent attacks and ensure the integrity of the protocol.
Scalability: The proposed solution should be designed to scale, to handle a large number of transactions and users.
Regulatory Compliance: The proposed solution should be designed to comply with relevant regulations and laws.

Future Work

Future work on the proposed solution can include:

Implementation: Implementing the proposed solution on a testnet or mainnet.
Testing: Testing the proposed solution to ensure its security, scalability, and regulatory compliance.
Deployment: Deploying the proposed solution to a production environment.

Q&A: Frequently Asked Questions

Q: What is the current scenario in coinswap? A: In the current implementation of coinswap, each peer participating in the transaction is required to create multiple funding transactions, resulting in a complex and inefficient process.

Q: What are the edge cases of multiple transactions? A: The current implementation introduces several edge cases that can lead to a failed coinswap transaction, including insufficient UTXOs, increased mining fees, and unsuccessful swaps.

Q: What is the proposed solution to optimize coinswap? A: The proposed solution is to use a single funding transaction and a single contract transaction, generating tx_count + 1 UTXOs from a single funding transaction and creating a single contract transaction to spend the funding UTXO.

Q: What are the benefits of the proposed solution? A: The proposed solution offers several benefits, including reduced edge cases, decreased mining fees, and a simplified protocol.

Q: How can the proposed solution be implemented? A: To implement the proposed solution, the following steps can be taken: generate tx_count + 1 UTXOs from a single funding transaction, create a single contract transaction to spend the funding UTXO, and broadcast the transactions to the network.

Q: What are the use cases of the proposed solution? A: The proposed solution can be applied to various use cases, including cross-chain swaps, decentralized exchanges, and token swaps.

Q: What considerations should be taken into account when implementing the proposed solution? A: When implementing the proposed solution, several considerations should be taken into account, including security, scalability, and regulatory compliance.

Q: What is the future work on the proposed solution? A: Future work on the proposed solution can include implementation, testing, and deployment on a testnet or mainnet.

Q: How can the proposed solution be optimized further? A: The proposed solution can be optimized further by considering the following factors: reducing the number of transactions required, improving the efficiency of the protocol, and enhancing the security of the solution.

Q: What are the potential risks and challenges of the proposed solution? A: The proposed solution may face potential risks and challenges, including security risks, scalability issues, and regulatory challenges.

Q: How can the proposed solution be secured? A: The proposed solution can be secured by implementing robust security measures, including encryption, authentication, and access control.

Q: How can the proposed solution be scaled? A: The proposed solution can be scaled by implementing efficient algorithms, optimizing the protocol, and using distributed systems.

Q: How can the proposed solution be made regulatory compliant? A: The proposed solution can be made regulatory compliant by following relevant laws and regulations, obtaining necessary licenses and permits, and ensuring transparency and accountability.