User Concepts Explained

Two accounts, two networks

Ethereum uses 0x... addresses. Zeko's L2 uses B62... addresses and the zkApp transaction model. MetaMask can hold the Ethereum account and, through the Zeko Snap, provide the Zeko account. The accounts are not interchangeable.

ETH and tokens

ETH is the native asset of the Ethereum-backed Zeko deployment. Ethereum amounts use 18 decimals and Zeko native amounts use 9. Registered ERC-20 assets have an authenticated mapping to their L2 token; other custom Zeko tokens are not automatically bridgeable.

Inclusion and finality

L2 inclusion means the sequencer applied a transaction. Settlement means the batch has been accepted by the Ethereum settlement contract. Ethereum finality means its block has reached the deployment's finalized chain view. A fast sequencer response does not collapse these steps into instant finality.

Deposits and withdrawals

Deposits start on Ethereum and become usable on Zeko after bridge processing, synchronization, and L2 finalization. Withdrawals start with a Zeko request and require Ethereum settlement, a delay, and an Ethereum claim transaction.

Fees

Ethereum deposits, approvals, and claims require Ethereum gas. Zeko transfers and zkApp operations require L2 fees. Use the fee displayed by the deployment; historical MINA fee examples do not describe the current ETH fee schedule.

Proofs and privacy

Proofs verify valid execution without rerunning all application work on Ethereum. A proof can hide private inputs, but it does not automatically hide public balances or bridge transfers.

See the security model for the experimental deployment's trust assumptions.