


Digital asset custody solution for capital markets.
Scalable custody infrastructure with end-to-end encryption and built-in redundancy, designed to meet the highest industry standards with enterprise-grade governance.
Programmable policies
Built for the evolution of digital finance.

Segregate client assets by account.
Prevent disruptions with provable on-chain balances for auditors.
Secured in layers.
Multi-layered infrastructure designed for resilience, scalability, and operational control.
Prevent unauthorized access with configurable policy controls.
RBAC and access control confirm the requesting role is permitted to create proposals. The policy engine evaluates it against configured spend policies, determining approval quorum and approver identity.
Mirror your operating model to spending policies.
Scale without switching platforms.
Start on managed services and move fully on-premises as the business grows, with the same policy controls and audit trail behind every account.
Managed
Go live without buying or staffing hardware.
Blockstream operates the platform, with each client isolated on its own HSM partition.
Dedicated
Keep your own HSMs without running them.
Blockstream operates it like the managed service, without the shared clusters.
On-premises
Run the full stack in your own facilities.
The front end, message broker, TEE back end, HSM, database, and blockchain nodes all run on your premises.
Maintain business continuity without depending on Blockstream.
You own the keys and the restoration process, and shared environments include a seed backup held independently of Blockstream.
Stay online with redundancy at every level.
HSMs, databases, and servers are duplicated across geographic sites, with at least two HSMs in every deployment.
Scale with your business.
Easy migration path between deployment models to accommodate your business’s growth.
Flexible signer configuration.
Choose the signing model and design a custody setup that fits your security and governance requirements.

Single-signature
Cryptographic operations take place inside HSMs
Private keys and MPC key shares never leave the HSM security boundary.
Hardware security module (HSM) support
Cloud key management services (KMS)
Air-gapped offline signers for physical isolation

Multi-signature
Cryptographic operations take place inside HSMs
Private keys and MPC key shares never leave the HSM security boundary.
Hardware security module (HSM) support
Cloud key management services (KMS)
Air-gapped offline signers for physical isolation

MPC
Cryptographic operations take place inside HSMs
Private keys and MPC key shares never leave the HSM security boundary.
Hardware security module (HSM) support
Cloud key management services (KMS)
Air-gapped offline signers for physical isolation
Granular control of every asset,
from issuance to settlement.
Governed by your defined rules, enforced for every transfer that follows.

Issue, reissue, and burn.
Set the initial supply, add supply when you need it, and burn from circulation under issuer authority.
Freeze.
Lock a wallet, an asset, or a single holding whenever your policy requires it.
Settle.
Delivery and payment in one transaction, with two-minute finality.

Enable tokenization when you’re ready.
Run issuance and custody without a second system to keep in sync. Tokenize, manage, and custody your digital assets on one platform under the same controls.
Integrate with
your existing infrastructure.
Deploy alongside your existing core banking, identity providers, and operational systems with no disruption to current workflows.

Why choose Blockstream?


Build your financial infrastructure on bitcoin.
Speak with our enterprise solutions team to design custody, settlement, and operational workflows tailored to your firm's standards and operations.