How does a transaction go from a click to a permanent record?
Request: A user initiates a transaction (e.g., sending 1 ETH).
Broadcast: The transaction is sent to a P2P network of nodes.
Validation: Nodes check if the user has enough balance and valid signatures.
Mempool: Valid transactions wait in a "pool" to be picked up.
Block Creation: A miner/validator groups transactions into a block.
Consensus: The network agrees the block is valid (e.g., PoW or PoS).
Finality: The block is appended. The ledger updates globally.
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