Re: [ANN] BlackCoin (BLK/BC) | PoS | No premine | No IPO
I'm working on v5 
Some progress there... It needs accounts, as opposed to UTXOs.
But there's a difficult question: UTXOs and accounts, or only accounts?
I like the UTXO system but am not familiar with accounts system.
This seems like a pretty good explaination:
https://github.com/ethereum/wiki/wiki/Design-Rationale#accounts-and-not-utxos