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geraldarzy
geraldarzy

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Intro to Blockchain: Etherscan

The great thing about blockchain technology is that EVERYTHING is online.
Etherscan is a search engine that lets you see all the transactions happening on the blockchain.
To perform actions onto the blockchain, there needs to be a smart contract that has set functions. When these functions are called, usually, but depending on the type of function being called, a transaction is sent. Once this transaction is sent, it will forever be up on etherscan for people to view. If I make a transaction right now, you would be able to find my transaction and see what I did in the transaction.
How can you identify transactions? Say you made a transaction and you want to show your friend proof that you actually did what you were supposed to, a receipt, you can send them your transaction hash. With this transaction hash, you can find the transaction and easily see what was actually performed in that hash. This is a really easy way to do business as the blockchain can serve as the middleman. With the transaction hash serving as the receipt.

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