A Bitcoin transaction can be confirmed on-chain while the receiving exchange still shows a pending deposit. That does not automatically mean either the blockchain or the exchange has lost the payment. The two systems track different stages. Broadcast is not confirmation, and confirmation is not account credit The sender first broadcasts a tr...

A large Bitcoin payment does not necessarily need a larger mining fee than a small one. Bitcoin miners sell space in blocks, so a transaction’s data size matters more directly than the value being transferred. Total fee and fee rate describe different things The total mining fee is the difference between a transaction’s input value and outpu...