Syscoin
An open source community dedicated to scaling Bitcoin, especially its proof-of-work security, to meet global needs and emerging use cases, while sticking as close as possible to Bitcoin's original ideals. Syscoin's evolution across ten years of main net and the foresight reflected in its design means the project has a head-start providing a comprehensive network and protocol for projects aiming to achieve Bitcoin L2. Syscoin is a mainnet Bitcoin L2 that provides a data availability protocol that scales, making EVM and AltVM rollups on Bitcoin a reality. Merge-mined by a majority of Bitcoin's hash rate, Syscoin anchors rollups to Bitcoin's own proof-of-work and works with rollups’ existing sequencer architectures. Syscoin provides Bitcoin with a scalable data availability layer which is necessary for rollups (and other EVM or AltVM layers) to tap into Bitcoin's network in a safe and scalable way.
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Interlay
Invest, earn and pay with BTC on any blockchain. Radically open and secured by insurance. interBTC realizes the true free nature of BTC and decentralized finance. A 1:1 Bitcoin-backed asset, fully collateralized, interoperable, and censorship-resistant. For the cypherpunks, the degens, the maxis. For the holders, the traders, the yield farmers. Bitcoin for anyone, anywhere. Lock your BTC with a Vault. Pick one, or run your own. Your BTC is always safe and insured by Vault collateral. Earn on your Bitcoin. Use interBTC as collateral, for lending, yield farming and more, on any blockchain. interBTC is hosted as a parachain Polkadot and can be easily used on Ethereum, Cosmos, Kusama and other networks through Polkadot’s interoperability technology. We live in decentralization and transparency. We’re 100% remote and all our code is open source. We’re not anonymous, we stand by our product.
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Rootstock
Rootstock is a pioneering Bitcoin sidechain that integrates Ethereum-compatible smart contract capabilities with Bitcoin's robust security. As an open source platform, it leverages Bitcoin's proof-of-work consensus mechanism, achieving over 60% of Bitcoin's hashing power through merged mining. This integration allows developers to deploy EVM-compatible smart contracts, enabling the creation of decentralized applications secured by Bitcoin's network. Rootstock's native currency, RBTC, is pegged 1:1 to Bitcoin, facilitating seamless interaction with DeFi protocols and dApps on the Rootstock network for activities such as minting, swaps, and gas fees. The PowPeg protocol ensures secure and efficient two-way transfers between Bitcoin and Rootstock, enhancing interoperability. Rootstock's ecosystem encompasses a diverse range of applications, from swapping and staking with platforms like Sushi to yield optimization with Beefy and trading on Oku.
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RSK
RSK the safest smart contract blockchain platform secured by the Bitcoin Network. Bitcoin is the greatest DeFi opportunity and fully enabled on RSK, the most secure smart contract platform in the world. Bitcoin users now can lend, borrow, trade and earn interest on their Bitcoin. The future of finance is decentralized. RSK is the most secure contract platform in the world. RSK’s Contracts goal is to add value and functionality to the bitcoin Contracts ecosystem by enabling smart contracts, near instant Contracts payments, and higher scalability. RSK Blockchain is connected to Bitcoin through Merged Contracts Mining and the two-way peg also known as the bridge. Built on top of RSK, RIF aims to create the building blocks to construct a fully decentralized internet to enable Decentralized Sharing Economies in order to empower and protect the value of individuals through identity, payments, storage, communications, gateways services and the marketplace.
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