ENS (ens)

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What it offers

• setResolver: Set the resolver contract for an ENS name
• setOwner: Transfer ownership of an ENS name

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Notes

• node = namehash of the ENS name (e.g. namehash(“vitalik.eth”) = keccak256 chain)
• .eth names are ERC-721 NFTs held in the baseRegistrar contract
• Resolver contract stores the address/content records for a name
• Only the owner of a node can setResolver or setOwner
• Registration/renewal happens via the ETHRegistrarController (not in this ABI set)

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Its names in a program

function main() {
  // Ethereum's baseRegistrar, `0x57f1887a8BF19b14fC0dF6Fd9B2acc9Af147eA85`.
  require(Ens.BaseRegistrar != 0);
}

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Deployments

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ABI

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BaseRegistrarABI

• nameExpires(uint256 id) view returns (uint256)
• reclaim(uint256 id, address owner)

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ENSRegistryABI

• owner(bytes32 node) view returns (address)
• resolver(bytes32 node) view returns (address)
• setOwner(bytes32 node, address owner)
• setResolver(bytes32 node, address resolver)

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Next steps

• Protocols: the other protocols, by what they do.
• Protocols and tokens: calling a contract by its namespace, or through its ABI.
• Glossary: the words these pages use, in plain terms.