Back

Bitcoin Mining Difficulty Hits Record High at 155.97T

Bitcoin’s mining difficulty rose 6.31% to a record 155.97 trillion at block height 921,312 on October 29, alongside a hashrate increase to 1.13 ZH/s.

BTC

Summary

On October 29, 2025, Bitcoin’s network difficulty increased by 6.31% to an all-time high of 155.97 trillion at block height 921,312. The average network hashrate reached 1.13 zettahashes per second, highlighting a surge in computational power securing the blockchain. The next difficulty adjustment is expected in approximately 12 days.

Terms & Concepts
  • Bitcoin Mining Difficulty: A measure of how hard it is to find a new block on the Bitcoin network, adjusted periodically based on total mining power.
  • Block Height: The number of blocks in the blockchain preceding the current block, indicating its position in the chain.
  • Hashrate: The total computational power used by miners to process transactions and secure the blockchain.