**It's a little awkward, so we'll get straight to the point: This Wednesday we humbly ask you to defend Wikipedia's independence. We depend on donations averaging about €10, but 99% of our readers don't give. If everyone reading this gave €2, we could keep Wikipedia thriving for years to come. The price of your Wednesday coffee is all we need. We know that most people will ignore this message. But if Wikipedia is useful to you, please take a minute to help keep it growing. Thank you.**

# 40 crypto-monnaie

It's a little awkward, so we'll get straight to the point: This Wednesday we humbly ask you to defend Wikipedia's independence. We depend on donations averaging about €10, but 99% of our readers don't give. If everyone reading this gave €2, we could keep Wikipedia thriving for years to come. The price of your Wednesday coffee is all we need. We know that most people will ignore this message. But if Wikipedia is useful to you, please take a minute to help keep it growing. Thank you.

To keep the block generation time equal to ten minutes on average, both Bitcoin and Bitcoin Cash use an algorithm adjusting the mining difficulty parameter. This algorithm is called the difficulty adjustment algorithm (DAA). Originally, both Bitcoin and Bitcoin Cash used the same difficulty adjustment algorithm, adjusting the mining difficulty parameter every 2016 blocks. Since 1 August 2017, Bitcoin Cash also used an addition to the DAA, called an Emergency Difficulty Adjustment (EDA) algorithm. EDA was used alongside the original DAA and it was designed to decrease the mining difficulty of Bitcoin Cash by 20%, if the time difference between 6 successive blocks was greater than 12 hours.[36]## Sont de l'argent Cryptocurrencies