I am quite ignorant about the type of security used on these platforms. But I have always wondered how Faucethub and other micropayment platforms handle so many transactions at the same time, with so many faucets registered, most bitcoin, thousands of transactions were made from 1 sat even.
I understand that it is not the real crypto that is transferred, but could this system be applied in a payment ramp like PayPal?
Much of the user to user transactions will be in PayPal's wallet and never hit the blockchain. It's mostly when users put in or take out money.