Blockchain

Base

Consensus: Quantum-Vulnerable
Why this rating. Judgment call: Coinbase says it is assessing Base beyond what Ethereum provides and will write a concrete plan later. No sequencer or proposer post-quantum work is published. A layer 2 inherits no readiness.
Transactions: Quantum-Aware
Why this rating. Judgment call: Base accounts use classical signatures. EIP-8130 provides a framework for custom signature verifiers and future post-quantum accounts. The published reference contracts implement classical schemes, and native EIP-8130 accounts are not live.
Algorithms: None listed
Website: Website
Source: Source
Note and links: Layer 2; EIP-8130 PQ work
Coinbase post-quantum post
EIP-8130 contracts (base/eip-8130)

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