Pump and dump is a manipulative scheme in which an asset's price is first artificially inflated and then sharply dropped. The organizers take profit at the expense of the buyers they attracted.

A pump is the artificial inflation of a cryptocurrency's price through mass coordinated buying. The goal is to sharply raise the price so that the organizers can sell the asset for more.

Bitcoin's public ledger is a publicly accessible record of all the network's transactions since its launch. Any participant can verify operations, which ensures the transparency of the blockchain.

A limit order is a pending order to buy or sell an asset at a predetermined price. It is executed only when the specified rate is reached, giving the trader control over the price.

A market order is an instruction to buy or sell an asset immediately at the best available price. It is executed at once as long as there are matching limit orders in the order book.