Soulbound on Solana: How Token-2022 Extensions Enable Revocable, Issuer-Controlled Digital Credentials

Solana's Token-2022 program introduces a new primitive for Web3: digital credentials that stay in the holder's wallet but cannot be traded and can be silently revoked by the issuer. By combining NonTransferable, PermanentDelegate, and MetadataPointer extensions, developers can now build verifiable, on-chain badges for employee certifications, memberships, and licenses—eliminating the need for centralized databases while maintaining issuer control. This represents a genuine use case for soulbound assets beyond the hype.