Rubycoin is a Proof of Stake cryptocurrency that was issued by the cryptocurrency trading platform Trader Daddy.

Spectre.ai is a blockchain-based financial trading platform that allows users to trade a variety of digital currencies and other assets. Traders can choose an off-site trading account option and never directly deposit their funds. On-site trades are executed through secure smart contracts that can be independently verified, and are not centrally managed. Spectre's liquidity pool is owned by SXDT token holders, who receive dividend payments from the fees that the platform charges for executing trades.