Ink vs Arbitrum One

Which is more decentralized — Ink or Arbitrum One? A side-by-side on consensus, nodes, clients and governance.

	Ink	Arbitrum One
Grade	C	C+
Type	L2 · Optimistic rollup (OP Stack)	L2 · Optimistic rollup
Nakamoto / stage	Stage 1	Stage 1
Node / validator set	Inherits Ethereum security	Inherits Ethereum security
Clients / sequencer	Single sequencer (Kraken)	Single sequencer (Offchain Labs)
Governance	Kraken-led + Superchain	Arbitrum DAO + Security Council
Key risk	Centralized sequencer	Centralized sequencer

Ink C

L2BEAT Stage 1 early in its life
OP Stack / Superchain alignment
Forced-exit guarantees

Centralized sequencer (Kraken)
Young, smaller ecosystem

Arbitrum One C+

L2BEAT Stage 1
Permissionless exits + 7-day upgrade timelock
Active Arbitrum DAO

Centralized sequencer
Security Council can fast-track upgrades

Bottom line

Impressive Stage-1 status for a new L2; sequencer is still centralized. Among the most decentralized L2s — sequencer decentralization is the remaining step.