Soroban Smart Contracts: A New Era for Stellar Compliance

Stellar's Soroban smart contract platform represents a milestone for on-chain identity logic. With native support for cryptographic signatures, structured state storage, and efficient host functions, Soroban is uniquely positioned to handle complex verification states.

We explore how Soroban contracts handle registry states, how we bind compliance status directly to non-transferable Soulbound Tokens (SBTs), and the mechanics of contract-level revocations that execute in milliseconds. This architecture makes it simple for third-party Stellar DApps to query compliance state with a single, gas-efficient on-chain function call.

Custom SBT Minting Luminar's registry automatically interfaces with the Luminar Soulbound Token (LSBT). When a user successfully presents a valid ZK proof to the registry, the registry invokes the SBT contract's mint function. The token is tied permanently to the wallet, serving as an on-chain verification badge that other smart contracts can read instantly.