# Set Sail **Published by:** [CommChain](https://paragraph.com/@commchain/) **Published on:** 2022-06-10 **URL:** https://paragraph.com/@commchain/set-sail ## Content Today, our Testnet Phase I is almost done. https://communitychain.xyz/ We used BAS (BNB Application Sidechain) to build it, we mastered the core knowledge of BAS. We see that BAS dons’t have a Detail Doc, and we would like to write it, for the eco. Another side, We have researched Zero Knowledge for weeks, we believe ZK Rollup will be the next generation of blockchain.In BNBChain Roadmap, zkBAS is the next generationso our Testnet Phase II is also zkBAS. In our research, it can be:fewer validator, maybe 1 ~ 5more safety then everultra high performanceultra low gas, 0 gas cost is availableBut the ZK-Circuit is still hard to develop, zkEVM is still on early stage at present. We learn from Arbitrum, seek another way of zkRollup, and We have some ideas.What next ?There’re several ways we think about:Launch CommChain Mainnet base on Testnet Phase I. Phase I is a mature solution, we could upgrade it to Mainnet Phase II after Testnet Phase II.Launch CommChain Mainnet base on Testnet Phase II. The Mainnet start as zkRollup BAS, which brings more reputation.Still Testnet. Continue develop Testnet Phase III and IV, Mainnet will launch after everything is ready.About NASNAS will be the gas of CommChain. NAS nodes could be CommChain nodes. ## Publication Information - [CommChain](https://paragraph.com/@commchain/): Publication homepage - [All Posts](https://paragraph.com/@commchain/): More posts from this publication - [RSS Feed](https://api.paragraph.com/blogs/rss/@commchain): Subscribe to updates