$ADA ADA, the native coin of the Cardano blockchain, is gaining attention for its unique approach to scalability, security, and sustainability. Designed by academic researchers, Cardano uses a proof-of-stake consensus called Ouroboros, which offers energy efficiency without compromising security. ADA holders can stake their coins to earn rewards while supporting network operations. With ongoing developments like smart contracts and Hydra for scalability, Cardano aims to support decentralized applications and real-world solutions, especially in identity and finance. While opinions are divided, ADA remains a top choice for long-term believers in peer-reviewed, science-driven blockchain growth.