Solana launches SAS to enhance on-chain identity verification

On May 23, Solana introduced the Solana Attestation Service (SAS), an open-source and permissionless protocol for verifying off-chain data like KYC, investor status, and wallet reputation without revealing sensitive information.

SAS uses signed attestations to protect user privacy and allows for reusable verification across multiple applications. Supported by Civic, Trustalabs, and Solana Identity, the launch signals a broader move toward decentralized identity and verifiable credentials in blockchain.