Skip to content

Base ETH

Rank #15 by market capNo quantum-safe path live
Market cap
n/a
DeFi TVL
$5.6B
DefiLlama
Exposed share of supply
n/a
No published estimate
Value in exposed keys
n/a
Signature scheme
secp256k1 ECDSA
Key hidden until first signature
Yes

An EVM address is the last 20 bytes of the Keccak-256 hash of the secp256k1 public key, so an account that has only received funds has not revealed its key. The first transaction an externally owned account sends carries an ECDSA signature from which the public key is recovered, and it stays exposed for the life of the account. Contracts and smart accounts have no key of their own; exposure sits with whichever keys are authorised to control them.

Quantum-safe path
None live

Not live. Base's protocol overview describes it as a rollup built on Ethereum; Base runs as an OP Stack chain, and Optimism's Post-Quantum Roadmap for the Superchain (14 January 2026) sets January 2036 as the date after which ECDSA-only EOAs on OP Mainnet and participating OP Stack chains stop transacting, with migration via EIP-7702 delegation to smart accounts that verify post-quantum signatures. Coinbase's own post on post-quantum preparation could not be fetched (HTTP 403), so no Base-specific plan is recorded here.

No published exposure measurement yet

No chain-specific measurement of the share of supply in accounts with an exposed key was found. The exposure model is the same as Ethereum (EOA key revealed on first send), so a figure can be computed from this chain's own state, but no published study was located. Native token for gas is ETH bridged from Ethereum.

Sources