Deposits: CREATE2 proxies

Papertrade deposits use a deterministic per-user address designed to feel like a simple exchange deposit while remaining onchain.

Deterministic deposit addresses

Each wallet maps to a unique CREATE2 proxy address that can be derived before deployment. The launch flow ensures the proxy exists before it is used.

Sweep and finalize

A keeper monitors funded proxy accounts and drives the two-step Exchange flow: request a sweep of eligible Core balance and finalize the internal balance credit after the transfer clears.

Why proxies are used

The design isolates every user deposit address and avoids asking the user to manually send an approval-plus-deposit transaction sequence for the normal deposit flow.

Trust and verification

The factory, CREATE2 salt and init-code hash make the expected proxy address derivable. The documentation notes that accidentally sent EVM tokens are not the normal Papertrade deposit path.