Name tokenizer

Tokenize domain name into Metaplex NFTs

Table of contents

1. Program ID
2. Introduction
3. Security
4. Reproducible build
5. Collection
6. Mint
7. NFT
8. Tests
   • Rust
   • JS

Program ID

Mainnet program ID nftD3vbNkNqfj2Sd3HZwbpw4BxxKWr4AjGb9X38JeZk

Introduction

This program allows people to tokenize their domain name in NFTs that follow the Metaplex standard with a creation/redemption mechanism.

Reproducible build

A reproducible build script (build.sh) can be used to build the program using docker

Security

For security disclosures or to report a bug, please visit ImmuneFi for more information on our bug bounty program.

Collection

NFTs are all part of a verified collection E5ZnBpH9DYcxRkumKdS4ayJ3Ftb6o3E8wSbXw4N92GWg.

Mint

NFT mints are PDAs derived from the domain name key they represent. The derivation is made as follow:

pub const MINT_PREFIX: &[u8; 14] = b"tokenized_name";

// ...

let (mint, mint_nonce) = Pubkey::find_program_address(
    &[MINT_PREFIX, &accounts.name_account.key.to_bytes()],
    program_id,
);

NFT

When a domain name is tokenized its ownership is transfered to a PDA that will be holding the domain while it's tokenized. In exchange, the program mints an NFT for the user. When redeeming the domain is transfered back to the NFT holder and the NFT burned.

During the tokenization process an NftRecord is created with the following state:

pub struct NftRecord {
    /// Tag
    pub tag: Tag,

    /// Nonce
    pub nonce: u8,

    /// Name account of the record
    pub name_account: Pubkey,

    /// Record owner
    pub owner: Pubkey,

    /// NFT mint
    pub nft_mint: Pubkey,
}

If funds are sent by mistake to the NftRecord instead of the NFT holder while the domain is tokenized the owner has the possibility to withdraw them. The "correct owner" is determined as follow:

• If the NftRecord is active i.e domain is tokenized: The correct owner is the NFT holder
• If NftRecord is inactive i.e the NFT has been redeemed: The correct owner is the last person who redeemed (owner field in the NftRecord)

Tests

Rust

Functional Rust tests can be run with

cargo test-bpf --features devnet

JS

End to end tests can be run with

yarn jest