Which Major Cryptocurrencies Use EdDSA Instead of ECDSA?

While Bitcoin and Ethereum primarily use ECDSA with the secp256k1 curve, several major cryptocurrencies and blockchain platforms have adopted EdDSA, often with the Ed25519 curve. Examples include Cardano, Stellar, Monero, and the Avalanche platform.

These projects often prioritize the improved performance, simpler implementation, and enhanced security properties that EdDSA offers over the older ECDSA standard.