Qualified Custodians

Hardware-Isolated Keys. Local Policy Execution. Integration on Your Terms.

Blockstream's enterprise custody stack combines key security, customizable policy frameworks, and full auditability to meet the demands of regulated financial environments. Bank-grade security on proven, Bitcoin-native infrastructure.

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Qualified Custodians

Hardware-Isolated Keys. Local Policy Execution. Integration on Your Terms.

Custody Built for Qualified Custodians

Safe, Flexible, Multi-Key Solutions
Isolate private keys in dedicated secure hardware. Adopt best practices for key ceremonies and backup and recovery.
HSM-Based Security
Cold storage of private keys, with workspace and client messages encrypted end-to-end under a zero-trust architecture.
Segregation of Funds
Multi-account architecture with on-chain verifiability. Segregate by client or business need using defense-in-depth structures.
Compliance
Tamper-resistant audit logging, end-to-end traceability, and fraud prevention.
Policy & IAM Framework
Granular Identity & Access Management and Role-Based Access Control, spend and resource policies, and multi-party authorization.
High Transaction Throughput
Streamline approvals with spend policies, and automate transaction signing with instant execution on securely isolated HSMs.
Policy enforced up to signing Policy enforced up to signing
Capability 01

Policy Enforced up to Signing

A policy engine checks every transaction against limits, roles, timing, and risk conditions before any signature, ensuring no policy drift.

Controlled signing Controlled signing
Capability 02

Controlled Signing

Approved transactions execute in a secure, customer-owned signing environment using multi-approval, and private keys never leave the HSM.

Access on your terms Access on your terms
Capability 03

Access on Your Terms

You can access the custody stack through a dedicated desktop app, a mobile companion app for on-the-go approvals, or via SDK. This architecture can be delivered as a turnkey package or as unbundled modular components. It offers complete deployment flexibility, allowing you to run the system on-premise, in the cloud, or a customized hybrid setup.

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Custody Built for Regulated Environments

  • ✓A direct line to our enterprise team
  • ✓Answers on custody, tokenization, and settlement
  • ✓A reply within one business day
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