==== EIP 181: ENS support for reverse resolution of Ethereum addresses ====
[[dido:public:ra:xapend:xapend.b_stds:defact:ethereum:eip| Return to Ethereum ERCs ]]
: **Note**: The following is an excerpt from the official Ethereum site. It is provided here as a convenience and is not authoritative. Refer to the original document as the authoritative reference.
Data sheet for ENS support for reverse resolution of Ethereum addresses
| Title | ENS support for reverse resolution of Ethereum addresses |
| Author | Nick Johnson |
| Status | Final |
| Created | 2016-12-01 |
| Description | [[http://eips.ethereum.org/EIPS/eip-181]] |
| Specification | [[http://eips.ethereum.org/EIPS/eip-181#Specification]] |
| Category | ERC |
=== Abstract ===
: //This EIP specifies a TLD, registrar, and resolver [[dido:public:ra:xapend:xapend.a_glossary:i:interface|interface]] for reverse resolution of Ethereum addresses using ENS. This permits associating a human-readable name with any Ethereum [[dido:public:ra:xapend:xapend.a_glossary:b:blockchain|blockchain]] address. Resolvers can be certain that the reverse record was published by the owner of the Ethereum address in question.//
=== Motivation ===
: //While name services are mostly used for forward resolution - going from human-readable identifiers to machine-readable ones - there are many use-cases in which reverse resolution is useful as well://
://1. Applications that allow users to monitor accounts benefit from showing the name of an account instead of its address, even if it was originally added by address.//
://2. Attaching [[dido:public:ra:xapend:xapend.a_glossary:m:metadata|metadata]] such as descriptive information to an address allows retrieving this information regardless of how the address was originally discovered.//
://3. Anyone can configure a name to resolve to an address, regardless of ownership of that address. Reverse records allow the owner of an address to [[dido:public:ra:xapend:xapend.a_glossary:c:claim|claim]] a name as authoritative for that address.//