# Upbit Web3 Names (up.id)

**Upbit Web3 Name** is a secure and convenient Web3 username (ID) service that personalizes wallet addresses. Instead of remembering complex addresses like `0x1234..`, you can send and receive funds using simple usernames such as `username.up.id`.

Upbit Web3 Name is offered free of charge to wallets that have completed KYC through GIWA’s [Verified Address](/giwa-chain/en/giwa-ecosystem/dojang/verified-address.md) service. Once issued, it cannot be modified or transferred. This ensure that when you send funds to `username.up.id`, the process is not only simpler and more intuitive, but you also trust that the recipient’s wallet has been verified.

Upbit Web3 Names (`username.up.id`) are implemented as subdomains of the `up.id` domain and are registered on the [Ethereum Name Service](https://ens.domains/) (ENS) protocol. As a result, your Upbit Web3 Name can be used on Ethereum and is automatically supported by any library or tool that integrates ENS. In short, Upbit Web3 Names work out of the box — no additional development required.

{% hint style="info" %}
If you want to integrate GIWA ID into your dApp — including ENS support — you can learn more from the [ENS developer docs](https://docs.ens.domains/web/quickstart).
{% endhint %}

***

### Verified Address and Upbit Web3 Names <a href="#verified-address-and-giwa-id" id="verified-address-and-giwa-id"></a>

Upbit Web3 Names are designed, at the contract level, to be issued only to wallets with a Verified Address, and it remains valid only while that condition is met. They are provided as a non-transferable Soul-Bound Tokens (SBTs), meaning each wallet can hold exactly one and it cannot be transferred.

If a wallet’s Verified Address becomes invalid — for example, due to expired KYC — the associated Upbit Web3 Name is revoked and no longer linked to that wallet.

There is a **30-day grace period after revocation**. During this period, no one else can claim the Upbit Web3 Name. If the wallet regains a valid Verified Address **within 30 days**, ownership of the original Upbit Web3 Name is automatically restored. After 91 days, if the Upbit Web3 Names has not been claimed by someone else, ownership is still restored once the wallet’s Verified Address becomes valid again.


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