0xECC
0xECC is a term encountered in blockchain and cryptography contexts, usually referring to elliptic-curve cryptography utilities that are used alongside 0x-inspired tooling. It is not a single formal standard or specification; rather, it tends to denote either a library, a project name, or a collection of practices related to ECC in the 0x ecosystem. Because of this variance, exact features and scope can differ between implementations.
In practice, 0xECC may describe software that provides core ECC primitives such as key generation, public-key
The term has no single governing body and is mostly seen in developer discussions, open-source repositories,
See also: Elliptic-curve cryptography, Digital signatures, 0x protocol, Ethereum address format.