OrbitNFT

A Soroban smart contract for minting, owning, and transferring digital art NFTs on Stellar. No wrapped assets, no off-chain bookkeeping — ownership, transfers, and metadata are enforced directly by the contract.

Overview

Most "NFTs" on Stellar today are just Stellar Classic assets with a metadata convention layered on top — there's no contract enforcing who actually owns what. OrbitNFT implements real on-chain ownership using Soroban: minting, transfers, and metadata reads all go through contract logic, not asset issuer trust.

Stack

• Rust / Soroban SDK 21
• Stellar Testnet

Deployed contract

Live on Stellar Testnet.

Contract ID: CBU7UVJM7FAXB7AHCDMTKVJSUEE3PVTV2ROFOKO2P3IC4IKRTB45IHFA Explorer: https://stellar.expert/explorer/testnet/contract/CBU7UVJM7FAXB7AHCDMTKVJSUEE3PVTV2ROFOKO2P3IC4IKRTB45IHFA

First mint (Token #0):

• Tx: https://stellar.expert/explorer/testnet/tx/8f82bca40538570bd1bbc13a3f325d4d018294a7bc66ea39000e384317bfd0f4
• Owner: GBXEX2HCVWAG7JMCZIDZCEDFMQVLE6VZJ2LVIYACNO4CQQEHTUWDOOOJ

Contract functions

Function	Description
mint	Mint a new NFT to an address with metadata
owner_of	Get the current owner of a token
token_metadata	Get name/description/image for a token
transfer	Transfer ownership of a token
total_supply	Get total tokens minted

Setup

Requires Rust, the wasm32v1-none target, and the Stellar CLI.

sudo apt update
sudo apt install -y libdbus-1-dev libudev-dev pkg-config
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
source $HOME/.cargo/env
rustup target add wasm32v1-none
cargo install --locked stellar-cli

Build

stellar contract build

Test

cargo test

Deploy to testnet

stellar contract deploy \
  --wasm target/wasm32v1-none/release/nft.wasm \
  --source <your-account> \
  --network testnet

Project structure

contracts/nft/
├── Cargo.toml
└── src/
    ├── lib.rs       # contract entry points (mint, transfer, owner_of, etc.)
    └── test.rs      # unit tests

Contributing

See CONTRIBUTING.md.