# Five Technical Phases

APChain’s development is planned across **five major technical phases** with **clear annual milestone targets.**\
The goal is not only continuous technological iteration, but also to gradually build a **global AI + Web3 infrastructure network.**

### <mark style="color:orange;">Five Technical Phases</mark>

**Testnet-0**

* Launch basic EVM execution environment
* Implement PoS validation mechanism and block explorer
* Deploy Faucet for test tokens

**AI-Ready Testnet**

* Enable **Proof-of-Inference (PoI)** / **Proof-of-Reference (PoR)** and **AI Oracle**
* Launch MVP for **GPU/NPU computing power and data marketplace**
* Introduce **Streaming Gas and adaptive fee model**

**Mainnet Alpha**

* Deploy **USDA cross-chain bridge**
* Integrate **Multi-Party Computation (MPC)** / **Account Abstraction (AA)** wallet features
* Activate **APD governance system**
* Launch multi-chain interoperability gateway

**Rollup & DA Phase**

* Implement shared sequencer and cross-Rollup message bus
* Integrate external DA modules like **Celestia** and **EigenDA**
* Deliver enterprise-grade SLA (latency and stability guarantees)

**Sharding / Global Phase**

* Fully launch execution sharding and data sharding
* Enable compliant merchant onboarding in regulated regions and large-scale payment adoption
* Scale up AI-native applications and the DeFi ecosystem


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