BBc-1 Core version 1.1 is released

Thanks to all contributions, BBc-1 Core version 1.1 has been released.
GitHub : https://github.com/beyond-blockchain

Additions include supports for ID truncation, X509 public key certificates and ECC prime256v1 curve. We have decoupled libbbcsig from the core registry so that it is now easier to port bbclib.py to other programming languages.