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PowerPool is a solution for accumulating governance power in Ethereum-based protocols by pooling tokens (COMP, BAL, LEND, YFI, BZRX, AKRO, etc.). The CVP token name refers to Concentrated Voting Power: CVP holders decide how pooled GTs will vote when the vote occurs in their root protocol. Also, CVP holders govern the entire protocol (key ecosystem variables, collateral types, adding new pools).
Iconomi (ICN) cryptocurrency is currently inactive. As of September 2018, all ICN tokens were converted into Ethereum or ICONOMI AG shares.
Time New Bank (TNB) is an ERC-20 token that is currently undergoing a gradual swap to its own mainnet. This is the settlement token for transmitting assets based on value of time. At the time of writing, you can trade an Ethereum-based TNB token against USD on the Bitfinex exchange.