Arionum offers a secure electronic payments system that makes it easy to integrate with new and existing PHP applications. Web developers who already understand PHP can easily build new blockchain-based applications or integrate Arionum into their existing applications. Arionum is able to autoscale without degraded performance. It offers a fixed 0.25% fee on all transactions (max 10 ARO) and has a dynamic transaction limit per block allowing it to keep up with a growing number of transactions. Arionum has no pre-mined coins, an 8-year mining period, no developer fees, and a unique HYBRID mining system that shares rewards with CPU miners, GPU miners, and masternodes. One of the main advantages of Arionum is that it was fully coded from scratch in PHP, one of the most popular programming languages in the world. Any PHP developer in the world can now create apps on top of the blockchain using the tools they are already familiar with.