Secret Network (SCRT) Block Hash Algorithm

Hi,

Would like just to know what the Block Hash Algorithm does SCRT use? i.e. The algorithm used to generate the hash for its blocks particularly the Genesis Block

Example for this block: Block 6437430
What was used to generate the Block Hash: 56ADC1C410FE88A965BA3930B2E6A1F70A3C19165DEDFF0761B7434B1F85396F?