Stronghold Custody Infrastructure

MPCH's Stronghold platform provides enterprise-grade custody infrastructure combining disaster recovery and key management solutions for institutional cryptographic asset protection. This comprehensive offering serves enterprises, financial institutions, and government agencies requiring the highest levels of security and operational continuity.

Stronghold-DR: Disaster Recovery & Business Continuity

Stronghold-DR is MPCH's flagship disaster recovery platform for cryptographic assets including seeds, secrets, keys, and hardware signing devices. This fully offline, zero-trust solution ensures organizations maintain complete control of their digital assets while having structured recovery processes in place.

The platform provides comprehensive protection through geographically distributed storage in tamper-proof, EMP, fire, and water-resistant vaults. Zero-knowledge encryption ensures MPCH never has access to client assets, while multi-modal biometric authentication enables rapid, secure asset access when needed.

Stronghold-DR's fully air-gapped architecture eliminates external exposure and mitigates AI-driven attacks, quantum threats, and man-in-the-middle vulnerabilities. The solution reduces key man risk through structured recovery processes that remove reliance on any single individual, enabling seamless business operations without third-party dependencies.

Stronghold-KMS: Canton Validator Key Management

Stronghold-KMS is a purpose-built key management system designed specifically for Canton network validator nodes. The solution addresses system-level key management, protecting infrastructure keys that power encrypted state sharing, consensus, and operational logic within Canton networks.

The platform combines true cold storage for the most sensitive keys with hot HSM key use for signing and operational continuity. This hybrid approach ensures maximum security for critical keys while maintaining operational flexibility required for Canton validator operations.

Stronghold-KMS manages all five critical system-level keys required for Canton node operations, streamlining key issuance, use, and rotation while removing operational complexity. Zero-trust design principles ensure that even MPCH has no access to client keys, with permissioning governed by a policy engine providing full visibility and auditability.

Security & Compliance

Both platforms maintain robust compliance frameworks aligned with ISO 27001, SOC 2 Type 2, ICS 705, CIS v8, and NIST CSF V2 standards. The solutions feature segregated cold storage, HSM-based operations where needed, and comprehensive audit trails meeting institutional requirements.

The platforms operate with no third-party dependencies and no cloud lock-in, ensuring complete organizational control. This independence enables organizations to meet sovereignty requirements while maintaining the highest security standards for enterprise and government clients.

Target Clients

Stronghold serves enterprises requiring structured recovery plans for self-custody or digital signing infrastructure, digital asset investors maintaining complete control of private keys, corporations and financial institutions ensuring treasury operation continuity, Canton network validators requiring system-level key management, and government and law enforcement agencies requiring resilient disaster recovery for mission-critical cryptographic materials.

Unlike traditional custody solutions, Stronghold does not store, access, or control client assets. All custody remains with the organization, while MPCH provides the infrastructure and processes for secure recovery and key management. This approach ensures organizations maintain complete control with operational integrity even in hostile or compromised environments.