Hi All,

A fork occurs when two or more miners separately create a block at approximately the same time. The Bitcoin blockchain then (temporarily) consists of two or more blockchain heads.

This site (http://bitcoin.stackexchange.com/questions/3343/what-is-the-longest-blockchain-fork-that-has-been-orphaned-to-date) shows the length of the longest fork created on the Bitcoin blockchain.

However, if two miners separately create a block, a two-headed blockchain appears. If n-miners separately create a block, an n-headed blockchain appears. What is the largest value of n ever observed on the Bitcoin blockchain?

And is there a source where one can observe the average fork-height (n) of the Bitcoin blockchain?

Thanks,
Fevir