> For the complete documentation index, see [llms.txt](https://docs.vannalabs.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vannalabs.ai/vanna-network/architecture/validation-computation-separation-vcs.md).
# Validation-Computation Separation (VCS)
The Vanna Network employs two types of nodes, validator nodes and inference nodes, and bifurcates network validation and inference computation to the two types of nodes respectively.
**Stateful Validation** - The rollup nodes independently validate transactions and verify the state of the Vanna Network. Rollup nodes on the Vanna Network also participate in validating cryptographic proofs generated from inference nodes.
**Stateless Computation** - The inference nodes do not validate transactions and blocks on the network, and solely focus on computing AI/ML inference as well as generating cryptographic proofs for the inference.
This unique design allows the Vanna Network to scale without making compromises to decentralization. Hardware requirements continue to remain low for stateful validator nodes while the inference nodes do the heavy lifting (inference), with the validator nodes participating in proof validation to enforce honest computation by inference nodes.
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