Beyond APR: Unpacking the Control Structure of Ethereum Staking

For Ethereum validators, running a node and managing staking is not just about returns on investment. It's also about control, who has it, and what happens when different entities hold different keys.

The underlying logic of staking involves splitting permissions into two halves at the protocol level: signing keys for running the machine, and withdrawal credentials for controlling funds. The signing key is used to participate in consensus, but cannot access principal funds, while the withdrawal credentials determine where assets can be withdrawn.

This distinction is crucial for non-custodial staking solutions like imToken, which allow users to maintain control over their funds even when delegating node operations to third parties. Node service providers hold the signing key and manage validator operations, but do not have access to withdrawal credentials or user assets.