Optimistic ZK verification using MATT

The inquiry seeks to understand the significance and necessity of OP_CAT and covenants in a specific context, possibly related to blockchain or cryptocurrency technology. The questioner acknowledges the potential promise of the discussed direction but requests further clarification on these components' roles. Specifically, there is curiosity about whether these elements are crucial in a model that incorporates fraud proofs, hinting at familiarity with concepts like bitvm and optimistic rollups, albeit from a self-professed partially informed perspective. This suggests a technical discussion around the mechanisms of ensuring security or functionality within a cryptographic or blockchain framework, with an interest in how new or proposed features (OP_CAT and covenants) fit into existing or theoretical models for verification or transaction processing.