\nYes! Arbitrum Orbit's core technology has undergone a comprehensive audit and is now able to support deployments to mainnet. You can read more about it here.\n
\n\n\n\n
\n\n","key": "can-i-use-orbit-to-deploy-a-mainnet-chain"}, -{"question": "How can I deploy an Orbit-based Layer 3 (L3) chain?","answer": "\nCheck our Quickstart to learn how to launch your own Orbit chain today.\n
\n\n\n\n
\n\n","key": "how-can-i-deploy-an-orbitbased-layer-3-l3-chain"}, -{"question": "Do I need permission/license to launch an Orbit chain?","answer": "\nYou can launch any Orbit chain permissionlessly. \n
\n\n\nNitro is licensed under a Business Source license, similar to DeFi protocols like Uniswap and Aave, among others. This license contains an Additional Use Grant that permits the permissionless deployment of Nitro software on blockchains that settle to Arbitrum One or Nova. \n
\n\n\nHowever, Orbit chains that settle to a parent chain other than Arbitrum One or Nova are subject to additional licensing guidelines under the AEP.\n
\n\n\n\n
\n\n\n\n
\n\n","key": "do-i-need-permissionlicense-to-launch-an-orbit-chain"}, -{"question": "Does Arbitrum officially deploy and/or maintain L3s for external teams?","answer": "\nNo. Teams are required to deploy and maintain their Orbit chains. There are, however, several RaaS (Rollup as a Service) providers that can deploy and maintain the Orbit chain for you.\n
\n\n\n\n
\n\n","key": "does-arbitrum-officially-deploy-andor-maintain-l3s-for-external-teams"}, -{"question": "Can I modify Orbit's underlying technology to customize my chain?","answer": "\nYes, you can make any changes you require to the underlying Nitro code base.\n
\n\n\n\n
\n\n","key": "can-i-modify-orbits-underlying-technology-to-customize-my-chain"}, -{"question": "What Data Availability (DA) solutions are currently available for Orbit chains?","answer": "\nArbitrum Orbit currently supports 3 different DA solutions:\n
\n\n\nNote that using AnyTrust gives the chain owner the most flexibility and cheapest fees.\n
\n\n\n\n
\n\n","key": "what-data-availability-da-solutions-are-currently-available-for-orbit-chains"}, -{"question": "What token is used to pay gas fees on Orbit chains?","answer": "\nBy default, Orbit chains pay gas in ETH. However, Orbit chains using AnyTrust can be configured to use any ERC-20 token as the gas fee token of the chain.\n
\n\n\n\n
\n\n","key": "what-token-is-used-to-pay-gas-fees-on-orbit-chains"}, -{"question": "Can I use Ethereum toolkits to develop on my Orbit chain?","answer": "\nOrbit chains are fully EVM-compatible. Most tools that support Ethereum should be able to support an Orbit chain. There are, however, certain differences that developers need to keep in mind when building on an Orbit chain. You can find them here.\n
\n\n\n\n
\n\n","key": "can-i-use-ethereum-toolkits-to-develop-on-my-orbit-chain"}, -{"question": "Do Orbit chains have any built-in AA solution?","answer": "\nNot by default, but they can be customized to have native AA.\n
\n\n","key": "do-orbit-chains-have-any-builtin-aa-solution"}, -{"question": "Is there any cross-chain bridging solution between two Orbit chains?","answer": "\nThere is currently no Orbit-to-Orbit native bridging solution, other than going through the parent chain (if they share the same parent chain). However, there are many third-party bridges that have expressed interest in supporting Orbit chains.\n
\n\n\n\n
\n\n","key": "is-there-any-crosschain-bridging-solution-between-two-orbit-chains"}, -{"question": "Is there an official block explorer for Orbit chains?","answer": "\nOrbit chains deployments usually come with an open-source blockscout explorer by default, but there are many third-party solutions that have expressed interest in supporting Orbit chains.\n
\n\n\n\n
\n\n","key": "is-there-an-official-block-explorer-for-orbit-chains"}, -{"question": "Is there any indexing solution that supports Orbit chains?","answer": "\nSimilar to bridges and block explorers, there are many third-party indexing solutions that have expressed interest in supporting Orbit chains.\n
\n\n\n\n
\n\n","key": "is-there-any-indexing-solution-that-supports-orbit-chains"}, -{"question": "Can I increase the maximum contract size for my Orbit chain?","answer": "\nYes, Orbit supports an increased smart contract size limit of up to 96kB. You can use our Orbit SDK and configure the parameters MaxCodeSize and MaxInitCodeSize when calling prepareNodeConfig. Note that the smart contract size limit parameters can't be changed via upgrade after deployment.\n
\n\n\n\n
\n\n","key": "can-i-increase-the-maximum-contract-size-for-my-orbit-chain"}, -{"question": "How can I modify Nitro to force posting an invalid assertion and test the fraud proof mechanism?","answer": "\nForcing an invalid assertion in the chain is not supported at the moment. However, if you're building Nitro locally, you can run the following test that goes through the whole rollup/challenge mechanism:\n
\n\n```shell\ngo test ./system_tests/ -tags=challengetest -run=TestChallenge\n\n```\n\n\n
\n\n","key": "how-can-i-modify-nitro-to-force-posting-an-invalid-assertion-and-test-the-fraud-proof-mechanism"}, -{"question": "What fee collectors can be configured on my chain?","answer": "\nThere are 4 fee types that can be configured on an Orbit chain:\n
\n\nArbOwner.setInfraFeeAccount().ArbOwner.setNetworkFeeAccount().SequencerInbox.setIsBatchPoster() on the parent chain. And a different fee collector for that batch poster can be specified by calling ArbAggregator.setFeeCollector().ArbOwner.setL1PricingRewardRecipient()\nMore detailed information about fees can be found in the L1 fees and L2 fees pages.\n
\n\n\nInformation about the precompiles methods can be found in the Precompiles reference page.\n
\n\n","key": "what-fee-collectors-can-be-configured-on-my-chain"} -] \ No newline at end of file + { + "question": "Can I use Orbit to deploy a mainnet chain?", + "answer": "\nYes! Arbitrum Orbit's core technology has undergone a comprehensive audit and is now able to support deployments to mainnet. You can read more about it here.\n
\n\n\n\n
\n\n", + "key": "can-i-use-orbit-to-deploy-a-mainnet-chain" + }, + { + "question": "How can I deploy an Orbit-based Layer 3 (L3) chain?", + "answer": "\nCheck our Quickstart to learn how to launch your own Orbit chain today.\n
\n\n\n\n
\n\n", + "key": "how-can-i-deploy-an-orbitbased-layer-3-l3-chain" + }, + { + "question": "Do I need permission/license to launch an Orbit chain?", + "answer": "\nYou can launch any Orbit chain permissionlessly. Nitro is licensed under a Business Source license, similar to DeFi protocols like Uniswap and Aave, among others. This license contains an Additional Use Grant that permits the permissionless deployment of Nitro software on blockchains that settle to Arbitrum One or Nova. However, Orbit chains that settle to a parent chain other than Arbitrum One or Nova are subject to additional licensing guidelines under the AEP.\n
\n\n\nNote that launching a testnet doesn't require any license.\n
\n\n\n\n
\n\n", + "key": "do-i-need-permissionlicense-to-launch-an-orbit-chain" + }, + { + "question": "Does Arbitrum officially deploy and/or maintain L3s for external teams?", + "answer": "\nNo. Teams are required to deploy and maintain their Orbit chains. There are, however, several RaaS (Rollup as a Service) providers that can deploy and maintain the Orbit chain for you.\n
\n\n\n\n
\n\n", + "key": "does-arbitrum-officially-deploy-andor-maintain-l3s-for-external-teams" + }, + { + "question": "Can I modify Orbit's underlying technology to customize my chain?", + "answer": "\nYes, you can make any changes you require to the underlying Nitro code base.\n
\n\n\n\n
\n\n", + "key": "can-i-modify-orbits-underlying-technology-to-customize-my-chain" + }, + { + "question": "What Data Availability (DA) solutions are currently available for Orbit chains?", + "answer": "\nArbitrum Orbit currently supports 3 different DA solutions:\n
\n\n\nNote that using AnyTrust gives the chain owner the most flexibility and cheapest fees.\n
\n\n\n\n
\n\n", + "key": "what-data-availability-da-solutions-are-currently-available-for-orbit-chains" + }, + { + "question": "What token is used to pay gas fees on Orbit chains?", + "answer": "\nBy default, Orbit chains pay gas in ETH. However, Orbit chains using AnyTrust can be configured to use any ERC-20 token as the gas fee token of the chain.\n
\n\n\n\n
\n\n", + "key": "what-token-is-used-to-pay-gas-fees-on-orbit-chains" + }, + { + "question": "Can I use Ethereum toolkits to develop on my Orbit chain?", + "answer": "\nOrbit chains are fully EVM-compatible. Most tools that support Ethereum should be able to support an Orbit chain. There are, however, certain differences that developers need to keep in mind when building on an Orbit chain. You can find them here.\n
\n\n\n\n
\n\n", + "key": "can-i-use-ethereum-toolkits-to-develop-on-my-orbit-chain" + }, + { + "question": "Do Orbit chains have any built-in AA solution?", + "answer": "\nNot by default, but they can be customized to have native AA.\n
\n\n", + "key": "do-orbit-chains-have-any-builtin-aa-solution" + }, + { + "question": "Is there any cross-chain bridging solution between two Orbit chains?", + "answer": "\nThere is currently no Orbit-to-Orbit native bridging solution, other than going through the parent chain (if they share the same parent chain). However, there are many third-party bridges that have expressed interest in supporting Orbit chains.\n
\n\n\n\n
\n\n", + "key": "is-there-any-crosschain-bridging-solution-between-two-orbit-chains" + }, + { + "question": "Is there an official block explorer for Orbit chains?", + "answer": "\nOrbit chains deployments usually come with an open-source blockscout explorer by default, but there are many third-party solutions that have expressed interest in supporting Orbit chains.\n
\n\n\n\n
\n\n", + "key": "is-there-an-official-block-explorer-for-orbit-chains" + }, + { + "question": "Is there any indexing solution that supports Orbit chains?", + "answer": "\nSimilar to bridges and block explorers, there are many third-party indexing solutions that have expressed interest in supporting Orbit chains.\n
\n\n\n\n
\n\n", + "key": "is-there-any-indexing-solution-that-supports-orbit-chains" + }, + { + "question": "Can I increase the maximum contract size for my Orbit chain?", + "answer": "\nYes, Orbit supports an increased smart contract size limit of up to 96kB. You can use our Orbit SDK and configure the parameters MaxCodeSize and MaxInitCodeSize when calling prepareNodeConfig. Note that the smart contract size limit parameters can't be changed via upgrade after deployment.\n
\n\n\n\n
\n\n", + "key": "can-i-increase-the-maximum-contract-size-for-my-orbit-chain" + }, + { + "question": "How can I modify Nitro to force posting an invalid assertion and test the fraud proof mechanism?", + "answer": "\nForcing an invalid assertion in the chain is not supported at the moment. However, if you're building Nitro locally, you can run the following test that goes through the whole rollup/challenge mechanism:\n
\n\n```shell\ngo test ./system_tests/ -tags=challengetest -run=TestChallenge\n\n```\n\n\n
\n\n", + "key": "how-can-i-modify-nitro-to-force-posting-an-invalid-assertion-and-test-the-fraud-proof-mechanism" + }, + { + "question": "What fee collectors can be configured on my chain?", + "answer": "\nThere are 4 fee types that can be configured on an Orbit chain:\n
\n\nArbOwner.setInfraFeeAccount().ArbOwner.setNetworkFeeAccount().SequencerInbox.setIsBatchPoster() on the parent chain. And a different fee collector for that batch poster can be specified by calling ArbAggregator.setFeeCollector().ArbOwner.setL1PricingRewardRecipient()\nMore detailed information about fees can be found in the L1 fees and L2 fees pages.\n
\n\n\nInformation about the precompiles methods can be found in the Precompiles reference page.\n
\n\n", + "key": "what-fee-collectors-can-be-configured-on-my-chain" + } +]