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The Æternity Naming System (AENS)


AENS provides a mapping from human-readable names, such as example.aet to account addresses (starting with ak$ or oracle addresses (starting with ok$). It has been designed to work in the zero-trust blockchain environment, with features designed to prevent malicious nodes from stealing addresses clients have asked to register.

AENS addresses, like DNS addresses, contain 1 or more parts selected by clients, separated by the . character.

The full documentation of the AENS is the canonical source of information about its operation.

Registering and working with names

The general procedure for registering AENS names is this:

  • the client makes a hash of the name, and a secret salt
  • the client pre-claims this name with the blockchain.
  • when the pre-claim has been written into the blockchain the client can issue a claim transaction to take the name
  • the name is taken for as many blocks as the client has registered it, or until the client revokes the name
  • the client can transfer the name at any time before its expiration
  • the owner of a registered name can associate it with either an account or an oracle address.

Python SDK support

Literally could not be simpler:

from aeternity.aens import AEName
from aeternity.config import Config

Config.set_default(Config(local_port=3013, internal_port=3113, websocket_port=3114))

name = AEName('foobar.aet')
if name.is_available():