Good question. We'll build on top of the king (BTC) or queen (ETH). We could start with plain BTC or ETH to speed things ups, and issue an ERC20 (ETH) or RSK-based token (BTC) down the road.

But we're not into the pump and dump thing and we want to be 200% compliant. So we'll have to analyse this move carefully. We're also very open to new ideas and input from the new members.

Have you considered using Tendermint? We just published the results of a few months of Jepsen testing: https://news.ycombinator.com/item?id=15175984