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C

Cardano

Grade
A-

One of the most decentralized base layers — thousands of stake pools and a very high Nakamoto coefficient.

L1PoS (Ouroboros)
Type
L1 · PoS (Ouroboros)
How it works
Ouroboros PoS spreads block production across ~3,000 independent stake pools; on-chain governance (CIP-1694 / Voltaire) puts protocol decisions to ADA holders.
Nakamoto coefficient
50+
Node / validator set
~3,000 stake pools
Client diversity
Mostly one node implementation (a concentration risk)
Governance
On-chain (CIP-1694 / Voltaire)
Key risk
A few large stake pools still matter

Assessment

Cardano consistently tops Nakamoto-coefficient rankings (50+): no small group of pools can halt the chain, and stake is unusually well distributed. Its main weakness is client diversity — most nodes run a single implementation.

Decentralized here

  • Very high Nakamoto coefficient (50+)
  • ~3,000 independent stake pools
  • On-chain, token-holder governance
  • Low hardware requirements

Centralization vectors

  • Limited node-client diversity
  • Founding entities still influential
  • Lower activity than top chains
A-

Verdict

Among the most decentralized L1s by consensus, held back mainly by client monoculture.

Visit Cardano →

Grade as of June 2026; an opinionated synthesis of cited public metrics (Chainspect / Nakaflow (Nakamoto), L2BEAT (stages), clientdiversity.org — 2026). Figures shift — see methodology.

Compare Cardano with…

Cardano vs PolkadotCardano vs BitcoinCardano vs Ethereum