Troy Sargent

Have you ever wondered how a rollup and its base chain—the chain that the rollup commits state checkpoints to—communicate and interact? How can a user with funds only on the base chain interact with contracts on the rollup? In Arbitrum Nitro, one way to call a method on a contract deployed on […]

You think you’ve found a critical bug in a Solidity smart contract that, if exploited, could drain a widely used cryptocurrency exchange’s funds. To confirm that it’s really a bug, you need to figure out the value at an obscure storage slot that has no getter method. Adrenaline courses […]