July 20, 2026
Update to CMTAT Framework functional specifications
A new version of the "CMTAT Framework: Blockchain agnostic Functional specifications of the CMTA Token for the tokenization of financial instruments" has been made available in June 2026.
The minor update includes the following changes:
- Expanded blockchain coverage. The specifications now reference reference implementations and specifications across additional networks. Alongside the Ethereum (Solidity) and Tezos implementations, the document now formally includes the Aztec network (a privacy-preserving implementation in Noir, developed by Taurus SA, enabling confidential transactions using zero-knowledge proofs) and Solana (specifications and guidelines for deployment using the Solana Token and Extensions Programs).
- Atomic burn-and-mint guidance. A new passage addresses the issuer's ability to perform burn and mint operations atomically within a single transaction, noting that this is natively supported on some blockchains such as Solana, whereas on Ethereum it can be implemented via a multicall function or a dedicated burnAndMint function.
- New and clarified base module functions. The base module now includes explicit "Know pause status" and "Know deactivate status" functions, allowing any person to verify whether a contract is paused or deactivated.
- Enforcement module restructuring. A dedicated "Know frozen status" function has been added, with guidance on access on public versus private blockchains (for example, restricting visibility on private networks such as Aztec).
- New optional functions. Optional functions have been added, including "User-approved cancel" (a cancellation requiring token holder authorization, also allowing holders to cancel their own tokens) and "Approve" (granting a delegate permission to transfer a specified amount of tokens). The document notes that, while not mandatory, the Approve function is strongly recommended, as secondary-market capability may depend on a delegated approval function to automate trading and settlement for regulated entities.
A range of minor editorial and typographical corrections have also been made throughout.