{"id":19460146,"url":"https://github.com/offchainlabs/stylus","last_synced_at":"2025-04-25T07:32:50.433Z","repository":{"id":191861008,"uuid":"482577946","full_name":"OffchainLabs/stylus","owner":"OffchainLabs","description":"Stylus VM and Fraud Prover","archived":false,"fork":false,"pushed_at":"2024-04-12T23:03:04.000Z","size":48709,"stargazers_count":89,"open_issues_count":16,"forks_count":18,"subscribers_count":14,"default_branch":"stylus","last_synced_at":"2024-04-14T02:42:05.976Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/OffchainLabs.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.md","code_of_conduct":null,"threat_model":null,"audit":"audits/ConsenSys_Diligence_Arbitrum_Contracts_11_2021.pdf","citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null}},"created_at":"2022-04-17T16:39:15.000Z","updated_at":"2024-04-15T05:58:27.903Z","dependencies_parsed_at":"2023-12-19T09:29:48.181Z","dependency_job_id":"6e952d4f-cf4f-4485-9c8c-2c4804de7690","html_url":"https://github.com/OffchainLabs/stylus","commit_stats":null,"previous_names":["offchainlabs/stylus"],"tags_count":3,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OffchainLabs%2Fstylus","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OffchainLabs%2Fstylus/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OffchainLabs%2Fstylus/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OffchainLabs%2Fstylus/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/OffchainLabs","download_url":"https://codeload.github.com/OffchainLabs/stylus/tar.gz/refs/heads/stylus","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":223989500,"owners_count":17237090,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-10T17:35:45.380Z","updated_at":"2024-11-10T17:35:45.958Z","avatar_url":"https://github.com/OffchainLabs.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003cbr /\u003e\n\u003cp align=\"center\"\u003e\n  \u003ca href=\"https://arbitrum.io/\"\u003e\n    \u003cimg src=\"https://arbitrum.io/assets/arbitrum/logo_color.png\" alt=\"Logo\" width=\"80\" height=\"80\"\u003e\n  \u003c/a\u003e\n\n  \u003ch3 align=\"center\"\u003eArbitrum Nitro\u003c/h3\u003e\n\n  \u003cp align=\"center\"\u003e\n    \u003ca href=\"https://developer.arbitrum.io/\"\u003e\u003cstrong\u003eNext Generation Ethereum L2 Technology »\u003c/strong\u003e\u003c/a\u003e\n    \u003cbr /\u003e\n  \u003c/p\u003e\n\u003c/p\u003e\n\n## About Arbitrum Nitro\n\n\u003cimg src=\"https://arbitrum.io/assets/arbitrum/logo_color.png\" alt=\"Logo\" width=\"80\" height=\"80\"\u003e\n\nNitro is the latest iteration of the Arbitrum technology. It is a fully integrated, complete\nlayer 2 optimistic rollup system, including fraud proofs, the sequencer, the token bridges, \nadvanced calldata compression, and more.\n\nSee the live docs-site [here](https://developer.arbitrum.io/) (or [here](https://github.com/OffchainLabs/arbitrum-docs) for markdown docs source.)\n\nSee [here](./audits) for security audit reports.\n\nThe Nitro stack is built on several innovations. At its core is a new prover, which can do Arbitrum’s classic \ninteractive fraud proofs over WASM code. That means the L2 Arbitrum engine can be written and compiled using \nstandard languages and tools, replacing the custom-designed language and compiler used in previous Arbitrum\nversions. In normal execution, \nvalidators and nodes run the Nitro engine compiled to native code, switching to WASM if a fraud proof is needed. \nWe compile the core of Geth, the EVM engine that practically defines the Ethereum standard, right into Arbitrum. \nSo the previous custom-built EVM emulator is replaced by Geth, the most popular and well-supported Ethereum client.\n\nThe last piece of the stack is a slimmed-down version of our ArbOS component, rewritten in Go, which provides the \nrest of what’s needed to run an L2 chain: things like cross-chain communication, and a new and improved batching \nand compression system to minimize L1 costs.\n\nEssentially, Nitro runs Geth at layer 2 on top of Ethereum, and can prove fraud over the core engine of Geth \ncompiled to WASM.\n\nArbitrum One successfully migrated from the Classic Arbitrum stack onto Nitro on 8/31/22. (See [state migration](https://developer.arbitrum.io/migration/state-migration) and [dapp migration](https://developer.arbitrum.io/migration/dapp_migration) for more info).\n\n## License\n\nNitro is currently licensed under a [Business Source License](./LICENSE.md), similar to our friends at Uniswap and Aave, with an \"Additional Use Grant\" to ensure that everyone can have full comfort using and running nodes on all public Arbitrum chains.\n\nThe Additional Use Grant also permits the deployment of the Nitro software, in a permissionless fashion and without cost, as a new blockchain provided that the chain settles to either Arbitrum One or Arbitrum Nova. \n\nFor those that prefer to deploy the Nitro software either directly on Ethereum (i.e. an L2) or have it settle to another Layer-2 on top of Ethereum, the [Arbitrum Expansion Program (the \"AEP\")](https://docs.arbitrum.foundation/assets/files/Arbitrum%20Expansion%20Program%20Jan182024-4f08b0c2cb476a55dc153380fa3e64b0.pdf) was recently established. The AEP allows for the permissionless deployment in the aforementioned fashion provided that 10% of net revenue (as more fully described in the AEP) is contributed back to the Arbitrum community in accordance with the requirements of the AEP. \n\n## Contact\n\nDiscord - [Arbitrum](https://discord.com/invite/5KE54JwyTs)\n\nTwitter: [Arbitrum](https://twitter.com/arbitrum)\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Foffchainlabs%2Fstylus","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Foffchainlabs%2Fstylus","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Foffchainlabs%2Fstylus/lists"}