#BitcoinReserveDeadline Once a Bitcoin transaction is confirmed and added to the Blockchain, it becomes a permanent part of the public ledger, and it cannot be reversed.

This is the magic of the Bitcoin protocol!

The confirmation process involves the inclusion of a transaction in a block, and the more confirmations a transaction has, the more secure and irreversible it becomes. Typically, a Bitcoin transaction is considered secure after a few confirmations, and it becomes increasingly difficult to reverse as more blocks are added to the blockchain.

In general, it is not possible to reverse a Bitcoin transaction after it has been confirmed, and this property is one of the reasons why Bitcoin is often considered a secure and reliable form of digital currency.

The situation could be different if an entity managed to control 51% of the Bitcoin Hash Rate. The risk would then exist that this entity could attempt to rewrite the blocks of the Blockchain starting from a certain block before modifying the Blockchain.