|
Title: Protocol question: Giga hashes per second but nonce only 32-bit... Post by: thezerg on April 13, 2012, 05:09:27 PM How does that work? Maybe if you run out of numbers in the nonce you get a new time?
Thx! thezerg Title: Re: Protocol question: Giga hashes per second but nonce only 32-bit... Post by: DeathAndTaxes on April 13, 2012, 05:13:53 PM How does that work? Maybe if you run out of numbers in the nonce you get a new time? Thx! thezerg Change "something". A bitcoin block header consists of: Code: Version There is no requirement to change the block header a particular way to attempt another hash but usually when you exhaust the nonce range you either 1) change extra nonce value in coinbase which results in a new merkle tree hash 2) change the timestamp Pools usually do both to improve efficiency. Each worker has a different merkle root and the pool allows the worker locally to increment time (n-time-rolling). |