Slush Pool was the first mining pool that ever existed. Its name comes from the pseudonym of the proponent of the cooperative mining idea on the BitcoinTalk forum. Despite the decline of other major pools throughout history, such as GHashIO and Eligius, Slush Pool has managed to remain relevant in the ecosystem since its inception.
Despite the fact that Slush Pool is in seventh place of the most powerful pools in the Bitcoin network today, with 5.5% of its mining power (3.4 EH / s), historically there are more than 30,000 blocks that this group of miners has added to this chain.
The Slush Pool payment system is known as Score, which seeks to reward the miner's loyalty to the pool in which he works. The value of the first shares submitted by a user is the minimum but this is increasing according to the time that the miner operates continuously in the pool. For this reason, those who mine in the Slush Pool they should try to be active all the time and not change pools regularly (activity known as Pool Hopping), since the weight of their shares can return to 0 after 90 minutes of Inactivity.