Cryptocurrency trading platform Kraken blockchain is proposed to be named Ink and is built on Optimism's Superchain. Kraken has also partnered with Optimism to release a limited edition NFT, aiming to thank early backers. Ink founder Andrew Koller said in an interview that the testnet will be launched later this year, and developers will be able to try out Ink's application on the testnet. It is expected that the blockchain will be available to retail and institutional users in Quarter 1 next year.