# Bitcoin difficulty chart. Bitcoin’s Mining Difficulty Sees Largest Percentage Drop in 9 Years - CoinDesk

The BTG difficulty is adjusted periodically as a function of an average block finding time. Bitcoin GOLD difficulty or network difficulty is a key value for every cryptocurrency. Bitcoin GOLD Network difficulty is the difficulty of a problem that miners must solve to find a block.

What Is Mining? How is network difficulty measured?

For block to be considered legitimate it has to have hash value lower than set target. Cryptocurrency mining difficulty map Difficulty changes every blocks. Traditionally it's a hash function first 32 bits of which are equal to 0 while all the rest are 1 it is also called pdiff or pool difficulty.

Network difficulty is a value. It shows how many times on average miners should calculate a sol function to find a cryptocurrency block.

### Bitcoin mining difficulty chart

Every cryptocurrency has the preset average block find time managed by a network. If the number of miners increases, the network hashrate goes up.

The effective block find time becomes lower than the preset value. As a result, the network gradually increases its difficulty, that is, the difficulty of a problem that miners are solving. The network will keep increasing it until the block find time reaches the preset value.

Same thing when the number of miners decreases. When miners leave, the network hashrate goes down. Miners need bitcoin difficulty chart time to find a block.

So the network lowers its difficulty, thus making a problem easier to solve. Network Difficulty and Hashrate Explained.

### Bitcoin Mining Difficulty Hits ALL TIME HIGH!

Difficulty and hashrate are closely related. If you divide network difficulty by network hashrate, you will get the average block find time of a cryptocurrency block.

Network Difficulty.