MDT (Jupiter Meta Data Token) is a modular Ethereum-based Layer 2 infrastructure designed to function as a Truth Layer for decentralized data and identity verification. It employs a three-layer architecture combining a Layer 3 Enterprise Privacy Mesh utilizing a Directed Acyclic Graph (DAG) for high throughput, a Layer 2 Rollup with proprietary Asynchronous Validation Consensus (AVC) for security, and Layer 1 Ethereum for finality. The ecosystem integrates native Decentralized Identity (DID) and Zero-Knowledge Proofs (ZKPs) via the RISC Zero zkVM to enable verifiable computation and secure data sharing. It supports enterprise use cases, decentralized finance, and data-driven marketplaces by ensuring regulatory compliance alongside absolute data sovereignty.