The qDai chain is an experimental chain built on top of the Quorum blockchain platform. A special patch was applied to the Quorum go-client to support a Block Reward contract. This feature initially appeared in the Parity Ethereum client and allows flexible token minting.
Key properties of the qDai chain:
Blocks produced every 1 second
Istanbul BFT consensus
No block reward
New native tokens (qDai) minted on Dai deposit (similar to the xDai chain)
JSON RPC endpoint: https://quorum-rpc.tokenbridge.net.
Block explorer instance: https://blockscout.com/poa/qdai/