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A validity (ZK) rollup at Stage 1, with validity proofs but a single sequencer.
L2ZK rollup
- Type
- L2 · ZK rollup
- How it works
- ZK rollup posting validity proofs to Ethereum — withdrawals don’t depend on a challenge window. Stage 1 exit guarantees apply; the sequencer and prover are still operated centrally, with decentralization on the roadmap.
- L2BEAT stage
- Stage 1
- Node / validator set
- Inherits Ethereum security
- Sequencer
- Single sequencer (StarkWare)
- Governance
- Starknet governance (token + council)
- Key risk
- Centralized sequencer
Assessment
Starknet pairs ZK validity proofs (no fraud-proof window) with L2BEAT Stage 1 status. Its sequencer and prover remain centrally operated in 2026, and full sequencer decentralization is still ahead.
Decentralized here
- Validity proofs (no challenge window)
- L2BEAT Stage 1
- Native account abstraction
- Decentralization roadmap with token governance
Centralization vectors
- Centralized sequencer & prover
- Smaller ecosystem than OP/Arbitrum
- Not yet Stage 2
CVerdict
Strong cryptographic guarantees; operational decentralization is in progress.
Visit Starknet →
Grade as of June 2026; an opinionated synthesis of cited public metrics (Chainspect / Nakaflow (Nakamoto), L2BEAT (stages), clientdiversity.org — 2026). Figures shift — see methodology.
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