Bitcoin Additional is a decentralized, open-source cryptocurrency blockchain project that is a Bitcoin Fork. It utilizes the Proof-of-Stake (PoS) consensus algorithm, which helps address various issues within Bitcoin. By transitioning from the Proof-of-Work (PoW) algorithm to the Proof-of-Stake (PoS) algorithm, Bitcoin Additional resolves problems such as slow transaction speeds, dependence on mining equipment, excessive energy consumption, and expensive fees. Participants involved in network development are duly rewarded. BTCa coin provides opportunities for eco-friendly Bitcoin mining, stacking, and holding masternodes.