Celo(CELO) Launch Layer-2 Testnet, Dango

The Celo Foundation is excited to announce the successful launch of Celo's Layer-2 testnet, Dango, a pivotal step forward in core contributors cLabs' work bringing the EVM-compatible standalone blockchain home to Ethereum. First proposed during EthCC 2023, forking the Alfajores testnet to Dango allows ecosystem developers to begin transitioning their projects to the newest iteration of the blockchain built for the real world and designed for fast, low-cost payments worldwide.

With today's launch, all historical data including smart contracts, accounts, and balances from Alfajores are preserved and carried over. As recommended by cLabs and decided upon by the community across a series of forum posts and governance votes, the testnet is built upon Optimism's OP Stack, the modular and open-source blueprint for highly scalable and interoperable blockchains that power Optimism's Superchain. Following the Eigen Foundation's strategic grant to the Celo community and community support for cLabs' subsequent governance proposal, the Celo Layer-2 testnet uses EigenDA as an alternative data availability layer to maintain sub-cent transaction fees.

The Layer-2 architecture was developed with a core focus on maintaining the existing benefits of Celo's L1 leveraged for real-world solutions in 150+ countries. In addition to low transaction fees, core elements maintained and improved through the migration include:

• Bridging of WETH and ERC-20 tokens between Ethereum and Celo
• Decreasing block time to 2s from 5s, and increasing total throughput by 50%
• Maintaining 1-block finality
• CELO token duality (the ability to interact with CELO natively or via the ERC20 interface)
• Continuation of Fee Abstraction (multiple ERC-20 tokens as gas currencies including Celo-native USDT and USDC)
• The ability to send money to a phone number, email address, or other social identifier via SocialConnect
• Maintaining low gas fees to ensure greater accessibility and adoption of crypto around the world
• Higher security bridging to Ethereum for users who want to move assets
• Continuing Celo's commitment to Ultragreen Money

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