Polkadot vs Bitcoin

Which is more decentralized — Polkadot or Bitcoin? A side-by-side on consensus, nodes, clients and governance.

	Polkadot	Bitcoin
Grade	A-	B+
Type	L1 · NPoS	L1 · PoW
Nakamoto coefficient	50+	~2–3*
Node / validator set	~300–600 validators	~20,000+ reachable full nodes
Clients / sequencer	Multiple implementations (Polkadot SDK)	Bitcoin Core dominant; alternatives exist
Governance	Fully on-chain (OpenGov)	No formal governance (BIP + social consensus)
Key risk	Nominator concentration	Mining-pool concentration

Polkadot A-

High Nakamoto coefficient (50+)
Fully on-chain governance (OpenGov)
Broad, rotating validator set

Nominator stake can concentrate
Complex multi-chain security model

Bitcoin B+

Largest reachable full-node set
No foundation / no on-chain governance to capture
Maximally credibly neutral

Mining hashpower concentrated in a few pools
Bitcoin Core client dominance

Bottom line

Elite on governance decentralization; strong on consensus. Unmatched on node-level and political decentralization; mining-pool concentration is the asterisk.