Difficulty History


Explanation


  • Mining difficulty adjusts automatically every 2,016 blocks.
  • The adjustment aims to maintain an average block-mining time of 10 minutes.
  • A growth in the difficulty indicates that the average block-mining time during the previous adjustment epoch was less than 10 minutes (due to more miners joining the network and 'searching' / 'mining' for blocks).
  • A drop in difficulty indicates miners have left the network so finding each block is adjusted to be 'easier' for the smaller number remaining.
  • The difficulty 'value' is a multiple of the difficulty of finding the easiest block (Block #0) - e.g. blocks in BTC mainnet epoch 308 are over 16 trillion times harder to mine than those in epoch 0.

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