BitDNS is the core infrastructure of the distributed Internet. On the BitDNS network, users are autonomous and domain names are decentralized. BitDNS builds distributed domain names through BitUID infrastructure, wallets, and routers. In addition, BitDNS plans to connect most mainstream public chains. BitDNS maybe the first project to include key with mainstream technologies like: IPFS technology, Etherum, EOS, Fabric, R3, IPv8 technology. The commingled ecosystem will become the Super Hub of distributed Internet-dWeb4.0.