Blockchain Academy
We'll get together for networking with people interested in Blockchain including developers and anyone curious about Blockchain.

Transaction

Transaction is the minimum unit which is processed and performed in a blockchain network. It refers to all the actions occurred in the network such as remittance in Bitcoin and smart contract code execution in Ethereum. A transaction by a user is verified by neighbor nodes. When it is approved, it becomes a pending state and is stored in a block during the mining nodes create the block. When this block is linked to the main chain, the transaction is being approved. After confirmation required by the blockchain, the balance is being changed at last.

The transaction in the block is being processed after linked in the main chain and is trackable with txid, the transaction ID given from the transaction occurrence. It is trackable in Blockchain Explorer for Bitcoin (https://www.blockchain.com/ko/explorer) and in Etherscan (https://etherscan.io/) for Ethereum.