zkLend
zkLend is an L2 money-market protocol built on StarkNet, combining zk-rollup scalability, superior transaction speed, and cost savings with Ethereum's security. The protocol offers a dual solution, a permissioned and compliance-focused solution for institutional clients, and a permissionless service for DeFi users, all without sacrificing decentralization. zkLend believes that truly decentralized finance must be built on chains that are not only cheap, fast, and scalable but also secure and decentralized. zkLend is built with the conviction that Ethereum is the only decentralized solution and zk is the only technology that can scale without compromising on the properties that make Ethereum so unique. zkLend is an L2 money-market protocol built on StarkNet, combining zk-rollup scalability, superior transaction speed, and cost savings with Ethereum’s security. Users will be able to deposit their assets into a reserve pool, thereby providing liquidity to each money market.
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cBridge
cBridge is a multi-chain network that enables instant, low-cost and any-to-any value transfers within and across Ethereum’s layer-2 chains, Ethereum main chain and in the future, other layer-1s, and layer-2 on top of those other layer-1 chains. Instant entering and existing layer2 from/to Ethereum layer-1 without long delay. Instant liquidity transfer between multiple different layer-2 networks on Ethereum, including Optimistic Rollups, such as Optimism, Arbitrum and PoS side chains such as Matic and SKALE, without going through underlying layer-1 blockchain. Two-way bridging between layer-2 on one blockchain and a completely different layer-1 blockchain without going through the corresponding root layer-1 at all. cBridge v1.0 supports cross-chain transfer across all EVM-compatible chains, including some EVM-compatible layer-1 chains, different layer-2 scaling solutions on top, such as Optimistic Rollup, ZK Rollup and sidechains.
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Starknet
Starknet is a permissionless decentralized ZK-Rollup operating as an L2 network over Ethereum, where any dApp can achieve unlimited scale for its computation, without compromising Ethereum's composability and security. Starknet achieves scale, while preserving the security of L1 Ethereum by producing STARK proofs off-chain, and verifying those proofs on-chain. On Starknet, developers can easily deploy any business logic using Starknet Contracts. Starknet will provide Ethereum-level composability, facilitating easy development and compounding innovation. The STARK Prover powers the StarkEx scalability engine, and has already demonstrated the ability to process 600K transactions in a single proof on Mainnet.
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Loopring
Loopring is an open protocol for building scalable non-custodial exchanges on Ethereum. Leveraging zero-knowledge proofs (zkRollup), it allows for high performance trading (high throughput, low settlement cost), without sacrificing Ethereum-level security guarantees. Users always maintain 100% control of their assets throughout the trade lifecycle. You can trade on Loopring to test it out. Loopring is an open-sourced, audited, and non-custodial exchange protocol, which means nobody in the Loopring ecosystem needs to trust others. Cryptoassets are always under users' own control, with 100% Ethereum-level security guarantees. Loopring powers highly scalable decentralized exchanges by batch-processing thousands of requests off-chain, with verifiably correct execution via ZKPs. The performance of underlying blockchains is no longer the bottleneck. Loopring performs most operations, including order-matching and trade settlement, off the Ethereum blockchain.
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