Every transaction checked against policy before any signature. ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌
Blockstream Enterprise
Custody & Treasury
Hardware-Isolated Keys. Local Policy Execution. Integration on Your Terms.
Key security, customizable policy frameworks, and full auditability. Bank-grade security on proven, Bitcoin-native infrastructure.
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A transaction passes through a policy engine that checks limits, roles, timing, and risk before signing in an HSM.
Keys never leave the HSM  ·  RBAC + IAM  ·  On-chain verifiability
  
Policy Enforced up to Signing Lead
A policy engine checks every transaction against limits, roles, approval authorities, timing, and risk conditions before any signature, so there's no policy drift between what you configured and what actually executes.
  
Keys Never Leave the HSM
Private keys stay in cold storage under a zero-trust architecture; approved transactions sign in a secure, customer-owned multi-approval environment.
  
Full Auditability & Segregation
Tamper-resistant audit logging and end-to-end traceability, with a multi-account architecture and on-chain verifiability to segregate by client.
Who controls the signing environment?
You do. Signing happens in a customer-owned multi-approval environment, and private keys never leave the HSM.
Can we deploy inside our own perimeter?
Yes. Desktop, mobile, and SDK access, delivered turnkey or unbundled, deployed cloud, hybrid, or on-premises.
Custody That Your Regulators Can Underwrite.
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Satoshi · Enterprise, Blockstream
Blockstream Corporation Inc., 1055 Canada Place, Suite 33800, Vancouver, BC, Canada
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