Key points
The Travel Rule is a regulatory requirement that mandates cryptocurrency platforms to collect and share certain details about crypto transactions. The aim is to comply with international anti-money laundering regulations.

Binance users may need to verify ownership of wallet addresses before sending cryptocurrency to (or receiving cryptocurrency from) certain platforms.
Proof of Satoshi is a verification method that simplifies compliance with the Travel Rule through a small cryptocurrency transfer. Once completed, it eliminates the need to repeatedly verify a wallet address for each deposit or withdrawal.