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On August 4, the Polkadot (DOT) project launched a testnet, called “Rococo”, for the implementation of its sharding solutions based on parachains.
- Initially comes with 3 default parachains: Tick, Trick and Track
- Currently supports Horizontal Message Passing, with Cross-Chain Message Passing (which is faster) the long term goal
- Parachains send messages to each other via the relay chain
- Developer can create their own parachains
- Parachains one of many steps in Polkadot’s goal to establish an interoperability standard
