Private Bitcoin Infrastructure for Corporate Clients.
Vault architecture, private education, and sovereign node deployments—engineered for discretion and long-term resilience.
Security. Privacy. Governance. Continuity.
Private Bitcoin Infrastructure for Corporate Clients.
Vault architecture, private education, and sovereign node deployments—engineered for discretion and long-term resilience.
Security. Privacy. Governance. Continuity.
The 21st Corporate Program
The 21st Corporate
Program
Exclusive service tiers for corporates and family offices that require sovereign custody, internal governance, and long-term continuity—without third-party control.
Exclusive service tiers for corporates and family offices that require sovereign custody, internal governance, and long-term continuity—without third-party control.
Smart Vault Corporate
Smart Vault Corporate
Private Bitcoin Vault Architecture & Custody Design
Private Bitcoin Vault Architecture & Custody Design
Custom multisig and recovery systems built around your governance and threat model—designed for full control and zero centralized access.
Custom multisig and recovery systems built around your governance and threat model—designed for full control and zero centralized access.
Corporate Education
Corporate Education
Private Bitcoin security training
Private Bitcoin security training
Build internal capability with structured education for principals and teams—focused on operational safety, decision-making, and long-term continuity.
Build internal capability with structured education for principals and teams—focused on operational safety, decision-making, and long-term continuity.
Private Node Deployments
Private Node Deployments
Sovereign node implementations
Sovereign node implementations
Dedicated Bitcoin node deployments configured for privacy and reliability, with optional support and maintenance.
Dedicated Bitcoin node deployments configured for privacy and reliability, with optional support and maintenance.
Private Courses
Private Courses
Hands-on sessions tailored to your workflow
Hands-on sessions tailored to your workflow
Bespoke workshops covering signing procedures, policy design, incident response, and continuity planning—delivered privately.
Bespoke workshops covering signing procedures, policy design, incident response, and continuity planning—delivered privately.
Private Bitcoin Vault Architecture & Custody Solutions
Tailored vault systems built for maximum privacy and resilience—combining multisignature control, time-locked recovery, and discreet engineering for complete asset sovereignty. Designed for corporates and family offices that require policy controls, approvals, and continuity across stakeholders.
Custom Vault Architecture
Custom Vault Architecture
Every Smart Vault Elite client receives a dedicated vault design, engineered with multisignature and timelock configurations that match personal custody requirements and threat models.
Every Smart Vault Elite client receives a dedicated vault design, engineered with multisignature and timelock configurations that match personal custody requirements and threat models.
Full Control, Zero Counterparty Risk
Full Control, Zero Counterparty Risk
Unlike traditional custodians, your keys never leave your control. Our infrastructure is self-sovereign, with no single point of failure or centralized access.
Unlike traditional custodians, your keys never leave your control. Our infrastructure is self-sovereign, with no single point of failure or centralized access.
Recovery & Continuity Protocols
Recovery & Continuity Protocols
A multi-stage time-lock recovery system ensures asset accessibility even in edge cases like loss, device compromise, or extended inactivity.
A multi-stage time-lock recovery system ensures asset accessibility even in edge cases like loss, device compromise, or extended inactivity.
Discreet Engineering & Ongoing Audits
Discreet Engineering & Ongoing Audits
All Elite vaults are deployed through a white-glove onboarding process, with optional third-party security audits and continuous configuration monitoring.
All Elite vaults are deployed through a white-glove onboarding process, with optional third-party security audits and continuous configuration monitoring.
Duress & Inheritance Protection
Duress & Inheritance Protection
Advanced inheritance scenarios and duress safeguards ensure continuity without compromising privacy or control.
Advanced inheritance scenarios and duress safeguards ensure continuity without compromising privacy or control.
Private onboarding sessions with our security engineers
Lifetime configuration
support
Optional hybrid cold storage strategies
Priority transaction processing
InfrastructurePrivate Node
Deployments
We deploy a private Bitcoin node in your environment—configured for reliability, privacy, and simple day-to-day operations.
Private Bitcoin Node
A dedicated node configured to your requirements, with hardened access and clear operating guidance.
Optional Wallet Connect
Connect your preferred wallet flow without exposing keys—keeping signing separate and secure.
Maintenance & Support
Upgrades, monitoring, and help when you need it—kept discreet and documented.
Private Bitcoin Node
A dedicated node configured to your requirements, with hardened access and clear operating guidance.
Optional Wallet Connect
Connect your preferred wallet flow without exposing keys—keeping signing separate and secure.
Maintenance & Support
Upgrades, monitoring, and help when you need it—kept discreet and documented.
Education & Private CoursesCorporate Education
& Private Courses
Private training designed to reduce operational risk and build internal capability—delivered discreetly for principals, teams, and trusted advisors.
Executive Briefing (90 minutes)
A private, non-technical orientation covering custody models, governance decisions, and key security tradeoffs.
Operator Course (Half-day / Full-day)
Hands-on workflows: signing, PSBT reviews, device hygiene, incident response, and safe coordination across teams.
Continuity & Inheritance Workshop
Define roles, thresholds, recovery timelines, and inheritance procedures aligned with privacy and control.
Private sessions only. No recordings. No public cohorts.
Built and Trusted by Market Experts
Built and Trusted by Market Experts
21st Corporate services are led by a multidisciplinary team of macro strategists, quantitative analysts, and Bitcoin-native security professionals. We combine discreet engineering, private education, and infrastructure expertise to deliver resilient vault and node systems—built around client sovereignty.
Security Engineering
Lead
Time-locks, recovery layers, threat modeling
Cryptography
Specialist
Multi-sig design, key ceremonies, secure enclaves
Protocol & Bitcoin
Layer Expert
Script-level validation, PSBT flows, deterministic key paths
Risk & Compliance
Analyst
Transaction policies, auditing frameworks, access governance
Built for Corporates & Family Offices
Built for Corporates & Family Offices
Governance-ready vault architecture for treasury, multi-stakeholder approvals, and long-term continuity—engineered for privacy and internal control.
Governance-ready vault architecture for treasury, multi-stakeholder approvals, and long-term continuity—engineered for privacy and internal control.