A post launch look at SIGMA

For those who don’t already know about Gulden; Gulden uses a unique consensus algorithm which we call PoW² that combines traditional “proof of work” mining with a secondary system of “witnesses” to greatly enhance security. To be a witness coin holders must lock substantial funds up for a lengthy period of time (up to three years). More information on this system: article on security implications, basic guide to being a witness, simple graphical high level overview, some FAQS, detailed paper .

On October 16th we activated SIGMA our new hash algorithm at the centre of the “proof of…