In my knowledge, all coin mining requires public IP address for nodes to communicate with each others on IP network, that is Internet. It is required for BTC, ETC, EOS and all as I know. On todays Internet, only server has public IP, and blockchain network consensus is really built on server to server. You wallet is a client connecting to one of those servers, therefore wallet is not decentralized neither have the full picture of the pubic ledger to running by itself.
Clearly, good wallet shall run on mobile phones. However, mobile phone does not have real IP address due to IPv4 network is not able to provide that many IP addresses. IPv6 needs many years to come, so that the mobile industry using NAT, network address translation, to make many phones sharing one public IP and giving cell phone internal IP address behind firewall. Without IP address, mobile phone can only be client and not able to be a full mining node on public internet. Different cell phones behind firewall need centralized server to communicate to each other such as you see in whatsup and wechat.
TAUcoin is solving this industry bottleneck, to build true client to client, server-less networking allow blockchain to be maintained on mobile phone systems without any super node software. Every wallet is an full node running on mobile phone behind NAT firewall using internal IP address. So that we makes server, client and wallet all the same to achieve true decentalizaton.
How are we going to do that? Please stay tuned on TAU mainnet.