Lyra2RE

Lyra2RE is a series of mining algorithms used by Vertcoin and based on Scrypt-Adaptive-N starting on December 14th, 2014 (block 208301). The algorithm aims to be ASIC-resistant but favors GPUs as it's lowest common dominator over CPUs. On Auguest 10th, 2015 (block 347000), Vertcoin forked Lyra2RE to create Lyra2REv2 following a botnet attack that used 50% of the hashing power.