Chain-key WSTETH (ckWSTETH), a multi-chain WSTETH twin on the Internet Computer, is an ICRC-1-compliant token that is backed 1:1 by WSTETH such that 1 ckWSTETH can always be redeemed for 1 WSTETH and vice versa. The ckETH minter canister is responsible for both minting ckWSTETH tokens when users transfer WSTETH to its control and burning ckWSTETH when handling WSTETH retrieval requests. ckWSTETH transactions are facilitated through a ledger canister, which in conjunction with archive canisters, tracks ckWSTETH account balances and transaction history between accounts. An index canister provides access to ckWSTETH transactions associated with individual accounts.