NuShares are units held by individuals who wish to help support and maintain the Nu network. Owning NuShares is not required to use NuBits. Instead, NuShares are intended to be a source of network equity for developers, entrepreneurs, and speculators. NuShareholders can receive network revenues in the form of Peercoin dividends paid out by a custodian. NuShareholders can cast votes for actions that positively affect the Nu network. These actions help adjust the supply and demand for NuBits so that they will always remain at a long-term USD 1.00 value.
Wrapped Bitcoin Tokens (WBTC) is an ERC20 token fully backed by real BTC. The proof of reserves is on-chain, showing the exact 1:1 ratio between minted WBTC tokens and BTC stored by the custodians. A collaborative effort with a community of partners to bring Bitcoin to the Ethereum network will bring the stability and value of Bitcoin to Ethereum's expansive ecosystem of decentralized applications.