The Rebase Jetton Standard proposes a novel interface for rebase tokens within the TON Blockchain ecosystem, addressing the inherent limitations of the Jetton architecture in supporting dynamic balance adjustments. This document outlines the motivation, technical specifications, and integration guidelines for the Rebase Jetton standard, aiming to streamline the implementation of rebase tokens and enhance network efficiency.
Summary
The Rebase Jetton Standard delineates a structured approach for rebase tokens, where a userâs balance is dynamically calculated based on their share of the total supply. This is crucial for the implementation of tokens whose balances can adjust over time without necessitating direct transactions, thus mitigating network fee implications.
Motivation
Traditional Jetton architecture does not accommodate rebase tokens due to the separation of balance and share management across Jetton-master and Jetton-wallet contracts. The Rebase Jetton standard circumvents this limitation by facilitating balance computation through shared ownership, reducing the networkâs operational costs.
Specification
The specification includes detailed descriptions of the contract interfaces, message schemas (TL-B), and operational guidelines necessary for implementing rebase jettons, ensuring compatibility and operational efficiency within the TON ecosystem.
Comparison of Traditional vs. Rebase Jetton Architecture
| Feature | Traditional Jetton Architecture | Rebase Jetton Standard |
|---|---|---|
| Balance Calculation | Direct balance management | Balance derived from share of total supply |
| Contract Structure | Separate master and wallet contracts | Master contract and decentralized wallet contracts |
| Network Fee Efficiency | High for dynamic balance adjustments | Low due to reduced transaction requirements for rebasing |
| Compatibility | With Jetton protocol | Specific to rebase mechanics, not directly compatible |
Implementation Guide
Frontend Integration
Frontend applications must adapt to accurately reflect rebase jetton balances, requiring the retrieval of share data from individual wallets and corresponding balance calculations through the master contract.
Smart Contract Details
Rebase Jetton Wallet
- Manages user-specific shares.
- Handles internal message transactions for transfer and burn operations, adhering to specific schemas and operational logic.
Rebase Jetton Master
- Central contract for minting new jettons and managing total supply and shares.
- Provides utility methods for wallet address retrieval, balance, and share calculations.
Challenges and Considerations
The document highlights potential drawbacks, such as the inability to ascertain real-time balances on-chain and the vulnerabilities associated with share-based systems. It also discusses alternatives, rationale, and unresolved questions regarding safe transfers and backward compatibility.
Conclusion
The Rebase Jetton Standard represents a significant advancement in the implementation of rebase tokens on the TON Blockchain. By providing a comprehensive framework for their creation and management, it facilitates the development of innovative financial instruments and applications.
References
- Igor Erkin and Konstantin Komarov, authors of the proposal.
- Reference Implementation
- ERC-4626 and OpenZeppelinâs ERC-4626 implementation as prior art.