Cubist

Real-time Bridge Security Enforcement. On-chain protection that verifies cross-chain mints and withdrawals in real time—providing a layered defense against compromised signers, bridge contract exploits, and more.

Advanced Transactions & Self-Custody Staking. Key management designed for staking, protocols, bridges, and other security-critical applications that are simply impossible without advanced Bitcoin and Babylon support.

The page describes Web3 confidential compute for private smart contracts and verifiable code, designed for off-chain use and cross-chain compatibility with every blockchain, including Bitcoin.

Wallet-as-a-Service & Embedded Wallets. Hardware-backed embedded wallet infrastructure with the convenience and scalability users love—and without the shortcuts that leave them vulnerable.

The page explains Lombard’s implementation of hardware-enshrined smart contracts on Bitcoin, where secure hardware enforces rules for withdrawals, governance changes, and treasury funds.

Cubist's team works in applied cryptography, systems security, and formal methods. The team shares knowledge informed by its academic background.

The page explains how complete mediation checks policies before a key produces a signature and what can happen when those checks are not enforced correctly.

CubeSigner supports EOTS keys used by Babylon finality providers to sign validation messages for proof-of-stake chains.

The company works on key management and wallet infrastructure. The page features press coverage, interviews, and announcements about its team, research, and technology.

Cubist works on authentication and key management.

The company’s founders include a former fintech COO and professors from Carnegie Mellon University and the University of California-San Diego who have published more than 80 peer-reviewed papers in the areas of applied cryptography, systems security, and formal verification.

CubeSigner is a secure authentication and key management platform for high-performance use cases. Reduce risk by keeping all key operations inside secure hardware and enforcing transaction approvals with tamper-proof, programmable policies.