SIRIN LABS (SRN) token is based on the Ethereum protocol. It is a utility token used to pay for SIRIN LABS’ products and services. The SRN token is represented on a number of exchange platforms.
Red Pulse Phoenix (PHX) is currently based on the NEO protocol. It is listed on the number of exchanges paired against various cryptos. PHX tokens incentivise content creators of the Red Pulse research platform.
Scry.info (DDD) is an Ethereum-based token of the Scry.info global data aggregator. DDD token is listed on a few exchanges paired against bitcoin and Ethereum. In this abbreviation, “DDD” stands for "distributed data depositary".