Activated in February 2014 this hard fork allowed for the DigiByte blockchain to protect against multi-pools that mine large numbers of DigiByte at a low difficulty.
It achieves this by recalculating block difficulty between each block, allowing for a faster correction when a multi-pool begins or ceases contributing to DigiByte, rather than recalculating once every fortnight as is the case with Bitcoin. Since then DigiShield has been added into over 25 other cryptocurrency blockchains such as:
Dogecoin, Startcoin, Zcash, AuroraCoin, BitcoinGold, BitTokens, CasinoCoin, CreativeCoin, Granite, Huncoin, Monacoin, Mooncoin, Nautiluscoin, Quatloo, SakuraCoin, Scorecoin, SmartCoin, StartCoin, SuperiorCoin, And Ubiq, with the help of the DigiByte team
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