Polkadot hub t3rn deploys testnet parachain on Rococo

t3rn, a new cross-chain smart contract hub for Polkadot, has deployed its testnet parachain on the network’s primary testing bed, Rococo, CoinText learned from a press release. 

The network, called t0rn, is now plugged into the rest of the parachain testnets of the ecosystem.

Vital to ensure functionality 

Deploying Rococo is key to ensure t3rn’s unique technological innovation’s functionality in the Polkadot ecosystem.

It aims to solve a critical issue in cross-chain interaction, reaching across various consensus environments: making sure a transaction is validated on both ends. 

Through t3rn’s atomic cross-chain execution model, it’s guaranteed that both sets of transactions will succeed or roll back in case of failure.

The system is based on t3rn’s Circuit, an execution tool that sends other parachains with an active Gateway smart contract calls.

Evaluation on risk-reward basis 

Side Effects, the Circuit instructions submitted for cross-chain execution, are fulfilled by off-chain binary Executors. They collect the Side Effects and assess the potential execution on a risk-reward basis. 

They volunteer to execute them optimistically if they consider the transaction to be worthwhile as long as they commit an insurance bond. 

Ethereum rollups use the Optimistic execution model, which enables systems to execute first and finalize the transaction later. In the process, it’s assumed that nobody will attempt to misbehave because they will eventually be punished. 

Testnet of Polkadot that projects deploy on 

• Testing submitting cross-chain execution orders for interoperable execution
• Connecting the t3rn UI, providing seamless cross-chain execution of single Side Effects
• Each Rococo parachain can be dynamically registered to t3rn’s Circuit as a Gateway
• The major milestone kick-starts t3rn’s full launch as Polkadot’s smart contracts hub

Maciej Baj, Founder of t3rn, commented: 

Deploying on Rococo is a huge milestone for us, as this is the last testing ground before reaching a mainnet with economic value. With t0rn, developers will be able to try out our backend and our unified UI. Other parachains can register for Gateways and test our execution model. We think this will be revolutionary for the Polkadot ecosystem, finally enabling true cross-chain execution going beyond simple asset transfers.