# Core Technology & Infrastructure

- [Technological Vision & Engineering Decisions](/ai-perp-dex/core-technology-and-infrastructure/technological-vision-and-engineering-decisions.md)
- [The Evolutionary Roadmap](/ai-perp-dex/core-technology-and-infrastructure/the-evolutionary-roadmap.md)
- [Phase 1 Architecture: Bullbit App-Rollup](/ai-perp-dex/core-technology-and-infrastructure/phase-1-architecture-bullbit-app-rollup.md): In this phase, the system architecture operates similarly to an Rollup fine-tuned specifically for Trading, organized into 3 Layers interacting closely to ensure data integrity:
- [The 3-Layer Stack Architecture](/ai-perp-dex/core-technology-and-infrastructure/phase-1-architecture-bullbit-app-rollup/the-3-layer-stack-architecture.md)
- [Account Abstraction & UX Breakthroughs](/ai-perp-dex/core-technology-and-infrastructure/phase-1-architecture-bullbit-app-rollup/account-abstraction-and-ux-breakthroughs.md)
- [Trustless Mechanism: The Escape Hatch](/ai-perp-dex/core-technology-and-infrastructure/phase-1-architecture-bullbit-app-rollup/trustless-mechanism-the-escape-hatch.md)
- [Phase 2 Architecture: BullChain](/ai-perp-dex/core-technology-and-infrastructure/phase-2-architecture-bullchain.md)
- [Layer 1: Network & Consensus (The Foundation)](/ai-perp-dex/core-technology-and-infrastructure/phase-2-architecture-bullchain/layer-1-network-and-consensus-the-foundation.md)
- [Layer 2: Access Control & Native AA (The Gatekeeper)](/ai-perp-dex/core-technology-and-infrastructure/phase-2-architecture-bullchain/layer-2-access-control-and-native-aa-the-gatekeeper.md)
- [Layer 3: In-Memory Execution Engine (The Brain)](/ai-perp-dex/core-technology-and-infrastructure/phase-2-architecture-bullchain/layer-3-in-memory-execution-engine-the-brain.md)
- [Layer 4: Data Projection & Indexing (The Interface)](/ai-perp-dex/core-technology-and-infrastructure/phase-2-architecture-bullchain/layer-4-data-projection-and-indexing-the-interface.md)