Gavin_Andresen - 2010-07-14 01:44:36

No, actually, in the current source code it never gets lowered:

Code:

// Retarget
   CBigNum bnNew;
   bnNew.SetCompact(pindexLast->nBits);
   bnNew *= nActualTimespan;
   bnNew /= nTargetTimespan;

   if (bnNew > bnProofOfWorkLimit)
   bnNew = bnProofOfWorkLimit;

   /// debug print
   printf("GetNextWorkRequired RETARGET\n");

There's no "else if (bnNew < ...something)"

UPDATE: rodin is right, I'm wrong. bnProofOfWorkLimit is a constant, and this code just make sure the proof of work never gets too easy.

Gavin Andresen - 2010-07-14 01:44:36