Two glaring exceptions. Bitcoin and Ethereum both use secp256k1. As well as a host of smaller copycat cryptocurrencies of course.
I don’t believe your statement about seco256k1 being depreciated is correct. There are even tradeoffs between the two curve families, approximately equal software and hardware support, and legitimate reasons for preferring one over the other. They are approximately equal performant in practice, and both have high quality, high security implementations.
I don’t believe your statement about seco256k1 being depreciated is correct. There are even tradeoffs between the two curve families, approximately equal software and hardware support, and legitimate reasons for preferring one over the other. They are approximately equal performant in practice, and both have high quality, high security implementations.