Daily buys: you must complete your buys over the course of five consecutive days for your streak to continue. For example, if you complete 2 eligible buys of $100+ in the same day, only one of those buys will count. Midnight deadline: we count each day as ending at 11:59 PM PT (US Pacific Time). Make sure to complete your daily streak requirement before that time or your streak will end.

For advanced users, you may refer to the MOOC Course and the academic monograph.How does zk-STARK work? We create a Merkle tree using the hash of each user's account as the leaves. Each account shows balances in USD for various tokens (e.g., BTC, ETH). To handle these balances, we separate its balances into non-negative equities and debts for each token. This way, we only work with positive numbers, making it easier to handle calculations and avoid errors.