Casper Network Partners With Blocky to Bring Trusted Execution Environments to Developers

We are excited to announce a new partnership with Blocky, a leading provider of developer-friendly verifiable serverless computing. Through this integration, Casper developers can use Blocky’s Attestation Service (Blocky AS) to run sensitive logic inside Trusted Execution Environments (TEEs),  or hardware-backed enclaves, introducing stronger guarantees of trust and regulatory compliance for their decentralized applications.

With Blocky AS, developers can now anchor cryptographically verified off-chain logic directly into their Casper contracts. Sensitive operations (calling external APIs, handling secrets, processing protected data, etc.) can run inside isolated environments with attestations that Casper contracts can rely on.

First Use Case: Price Oracle Powered by Odra

The first demonstration of this new capability comes from Odra, a leading smart contract framework for Casper. Odra has built a Casper price oracle named Styks that leverages Blocky AS  to fetch and process market data securely.

The oracle queries trusted data sources through Blocky’s enclave, generating an attestation that proves the data was fetched and processed as intended. This attestation is then verified by Odra contracts on Casper, allowing dApps to rely on tamper-proof pricing feeds. The oracle unlocks secure DeFi primitives on Casper.

Other Opportunities for Developers

Blocky AS opens the door to a range of powerful applications:

  • Identity & Compliance: Verify user credentials or compliance checks off-chain in a TEE, then prove the results on Casper without exposing private data.

  • Gaming: Generate hardware-backed random numbers and timestamps for NFTs, gaming, or lottery applications with verifiable fairness.

  • Enterprise Integrations: Connect supply chain, IoT, or financial data pipelines directly into Casper dApps with guarantees of integrity and transparency.

  • Layered Computations: Chain multiple attestations together (e.g., time-weighted averages, multi-step analytics) for advanced workflows that remain verifiable on-chain.

Both Casper and Blocky share a vision of building glass-box applications: systems that are transparent, verifiable, and enterprise-ready. Casper brings the scalability, predictable economics, and smart contract upgradeability that businesses need. Blocky contributes verifiable off-chain execution through TEEs.

Developers can begin experimenting with Blocky on Casper today by signing up for a free API key. We look forward to seeing how builders use these new capabilities to create the next generation of applications on Casper.