Tuesday 21 June 2011

Pool Review: Slush's pool

Slush's pool is one of the main pools, and is second in Hash share behind the giant that is Deepbit. This pool is the pool that I started to mine with and is very easy to set up, however this has become more difficult after a recent DDOS attack (but I'll come onto that later). The interface is very clear with colour-coded reward indicators.
This pool uses a Scoring system, which works out a reward by using the shares to tell the server how many Hashes the worker is doing and then the server calculates a score from that. The reward per block is based on your score divided by the pools total score. This is slightly more complicated than the Share/TotalShare method but it uses the same principal.
Near the 13.06.2011 there was a DDOS on Slush's Pool which took down the site and stopped all mining for a short time. New security measures were put in place including an IP whitelist and a new address for workers to connect to the server.
Like most pools, the Unconfirmed balance is only transferred to the confirmed balance after it has reached 100 confirmations with the Network. This ensures that the block has been discovered and is not invalid so the system does not pay out on an invalid block which could potentially disrupt the Network (an Excess number of Bitcoins thought to be in circulation than the amount actually in circulation). The time it takes for a block to be fully confirmed and a reward to be released can range anywhere from 2 hours to 12 hours Depending on the number of clients online.

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