> For the complete documentation index, see [llms.txt](https://ark-defai.gitbook.io/ark/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ark-defai.gitbook.io/ark/5.-layer-2-or-ark-consensus-algorithmic-layer.md).

# 5. Layer 2 | Ark consensus algorithmic layer

- [5.1 Overview | The Intelligent Brain of Governance](https://ark-defai.gitbook.io/ark/5.-layer-2-or-ark-consensus-algorithmic-layer/5.1-overview-or-the-intelligent-brain-of-governance.md)
- [5.2 Three-Axis Computational Engine | Core Operational Structure](https://ark-defai.gitbook.io/ark/5.-layer-2-or-ark-consensus-algorithmic-layer/5.2-three-axis-computational-engine-or-core-operational-structure.md)
- [5.3 Model Structure | Computational Module Cluster](https://ark-defai.gitbook.io/ark/5.-layer-2-or-ark-consensus-algorithmic-layer/5.3-model-structure-or-computational-module-cluster.md)
- [5.4 Model Characteristics | Four Core Capabilities of the ARK Consensus Layer](https://ark-defai.gitbook.io/ark/5.-layer-2-or-ark-consensus-algorithmic-layer/5.4-model-characteristics-or-four-core-capabilities-of-the-ark-consensus-layer.md)
- [5.5 Governance Evolution Philosophy | From Voting to Algorithmic Consensus](https://ark-defai.gitbook.io/ark/5.-layer-2-or-ark-consensus-algorithmic-layer/5.5-governance-evolution-philosophy-or-from-voting-to-algorithmic-consensus.md)