yesterday we talked about wallets and keys, your identity on chain. today we follow the money. most people think sending crypto works like sending a text. you hit send, it arrives, done. but a lot happens between those two moments. and understanding it means you'll never panic over a pending transaction again. this is what actually happens. > step 1: you create the transaction when you hit send, your wallet builds a small package of information. it includes ~ your address, ~ the receiver's address, ~ the amount, and ~ a fee you're willing to pay. that fee is called gas, it's what pays the network to process your transaction. step 2: you sign it before anything moves, your wallet uses your private key to sign the transaction. this signature is mathematical proof that you, the owner of that wallet authorized this. nobody can fake it without your private key. the network doesn't ask for your name or password. just the signature. > step 3: it enters the mempool your transaction doesn't go straight onto the blockchain. it sits in a waiting room first called the mempool, short for memory pool. think of it like a queue outside a club. validators and miners look at this queue and decide which transactions to pick up and process next. here's the part most people don't know, they prioritize by fee. pay more gas, get picked faster. pay less, wait longer. this is why transactions get stuck during busy periods on the network. step 4: it gets picked up and confirmed a validator picks your transaction from the mempool, includes it in the next block, and that block gets added to the chain. once it's in a block, your transaction is confirmed. once a few more blocks are added on top of it, it's considered final. nearly impossible to reverse. step 5: it's done permanently. the receiver's balance updates. your balance updates. and that transaction is now part of the permanent record, visible to anyone, forever. no bank approved it and nobody called anyone. its just math, signatures, and thousands of computers agreeing it happened. this is the part that should hit different. a traditional bank transfer can take days, get reversed, get frozen, or get flagged. a blockchain transaction, once confirmed... is done. that's the power and the responsibility at the same time. ✅ day 4 task go to etherscan.io and search any wallet address. click on any transaction in the history and look at the details, you'll see the sender, receiver, gas fee paid, block it was confirmed in, and the exact timestamp. you just traced a real transaction from start to finish. see you tomorrow for day 5.