Recently I noticed that Difficulty in genesis block is defined as 131072 in yellow paper. It is different as 17,179,869,184 in mainnet. Anyone knows why two are different?

yellow paper screenshot

1 Answer 1


This has been fixed in the last release of the yellow paper (BERLIN VERSION fabef25 – 2021-12-02).

According to the yellow paper :

yellow paper : equation 41

with H_i being the block number.

For the genesis block (H_i = 0), the difficulty is effectively equal to 2^34 = 17,179,869,184.

However, I do not know where this incorrect value of 131,072 comes from. Anyway, great find!

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