Bitcoin Treasury Self-Custody Services
Architecture, implementation, hardware provisioning, and ongoing support for corporate Bitcoin self-custody – delivered collaboratively and supported like a professional IT consultancy.
Proud to partner with
CLIENT-SPECIFIC POSITIONING
CUSTOM
BITCOIN
SOLUTIONS FOR
BUSINESS & LIFE
From corporate treasuries to private wealth preservation, we turn your digital asset strategy into a highly secure, repeatable self-custody operating system. Implement robust controls, resilient backups, and rehearsed recovery procedures—allowing you to maintain complete ownership of your wealth without relying on third-party custodians.
Our services at a glance
Ongoing Support
& Education
Comprehensive Bitcoin services with a subscription model for updates, 24/7 emergency support, and expert-led certifications.
Our services at a glance
Inheritance
Planning &
Custody
Secure Bitcoin inheritance and hybrid custody solutions blending personal control with institutional-grade security."
LEAD ARCHITECT
MAX HILLEBRAND
CO-FOUNDER & HEAD OF SECURITY
Max is a globally respected expert in Bitcoin privacy and self-custody infrastructure. As former CEO of zkSNACKs, creator of Wasabi Wallet, he has led work across privacypreserving wallets, multisig architecture, airgapped signing workflows, open-source Bitcoin tooling, and adversarial threat modelling.
TEAM CAPABILITIES
- Multi-device key management and hardware signer configuration.
- Multisig architecture design: 2-of-3, 3-of-5, and custom quorum.
- Secure device provisioning: GrapheneOS and airgapped workflows.
- Node deployment, BTCPay Server, and Lightning Network integration.
- Recovery planning, documentation, and live drill execution.
- Ongoing IT-style support desk with response targets and security advisories.
Max speaking on Bitcoin privacy and self-sovereignty.
BOUNDARY OF RESPONSIBILITY
We are not a custody provider, fund administrator, broker, or managed-service vendor. We are an implementation and support partner.
Why Use SMS
WHAT WE DELIVER
TREASURY CUSTODY, PAYMENT RAILS, AND OPERATIONAL RESILIENCE
01
Security
Architecture
Multi-device key management
Approval workflows
Resilient backups and recovery drills
Signer and coordinator hardening
02
Operational
Payments
Receiving Bitcoin and vendor payments
Lightning workflows
Invoice infrastructure
Node and BTCPay integration
03
Continuity &
Governance
Receiving Bitcoin and vendor payments
Lightning workflows
Invoice infrastructure
Node and BTCPay integration
CORE SECURITY RULE
We never custody Bitcoin. We never ask for seed words, private keys, passwords, or backup locations.
RECOMMENDED PACKAGE
BITCOIN TREASURY PACKAGE
For organizations holding a Bitcoin treasury in self-custody with a hardened operational model, continuity planning, and the ability to transact without reliance on custodians.
module 01
Architecture
Approvals, roles, quorum design, and authority boundaries are written and rehearsed.
module 02
Key Ceremony
Guided wallet and private-key generation with Autris signers only; SMS never handles secrets.
module 03
Provisioning
Secure device hardening, GrapheneOS coordinator setup, signer configuration, and password/access-control architecture.
module 04
Implementation Support
Bitcoin software setup, multisig wallet configuration, runbook creation, and 10 hours of included support.
HARDWARE AND SETUP
Hardware lists are adapted to policy, geography, procurement constraints, and desired signer distribution.
DEVICE
- Foundation Passport
- Blockstream Jade Plus
- TapSigner
- Pixel 9 Pro XL / GrapheneOS
- Kangaru USB 36 GB
- SeedHammer2
- SeedHammer plates x10
PURPOSE
- Airgapped hardware signer with camera and microSD workflows
- Secondary signer with airgapped QR option
- NFC-enabled mobile signer for operational use
- Hardened coordinator device
- Encrypted offline storage
- Steel backup etcher for seed plates
- Tamper-resistant metal backup media
IMPLEMENTATION ROADMAP
A GUIDED BUILD, TESTED HANDOFF, AND SUPPORT TRANSITION
The engagement is structured so Autris learns the system while it is being built. Every procedure is documented, tested, and accessible under stress.
01
Consultation
Max maps treasury goals, constraints, threat model, and governance require-
02
Architecture
Custody structure, quorum, signer distribution, approval flow, backup plan, and recovery
03
Implementation
Device provisioning, guided key generation, wallet configuration, documentation, and initial
04
Handoff
Complete runbook, team training, stress-tested procedures, and recovery drill certifica-
05
Support Retainer
Support desk onboarding, incident response, firmware updates, quarterly reviews, and threat intelligence
WHAT YOU RECEIVES
- Custom security architecture document
- Steel-etched seed backups and distribution plan
- Multi-signature wallet configuration
- Complete operational runbook
- Hardware signer fleet, configured and tested
- Recovery drill certification
- Hardened coordinator device
- Support desk onboarding and quarterly cadence
Choose Your Path
Three routes to sovereignty
Begin with a proven package — transparent, fixed pricing. Refine every detail in the builder below. Final hardware scope is confirmed after your Threat Analysis. All prices payable in Bitcoin.
At a glance
What changes as you step up
| Foundations€1,500 | Pillars€5,000 | Apex€8,500 | |
|---|---|---|---|
| Expert modules | 3 | 6 | 10 |
| Bitcoin education & threat model | — | ✓ | ✓ |
| Secure device walkthrough | ✓ | ✓ | ✓ |
| Hardware signers | Coldcard Q | CCQ + Passport | 2× CCQ + Passport + Jade |
| Seed backup | 2× Trezor Keep (steel) | SeedHammer 2 + steel | SeedHammer 2 + steel |
| Tapsigner (mobile signer) | — | ✓ | ✓ |
| Secure mobile device | — | ✓ | ✓ |
| Your own Start9 node | — | ✓ | ✓ |
| Online privacy & passwords | — | — | ✓ |
| 2-of-3 multisig vault | — | — | ✓ |
| Inheritance planning | — | — | ✓ |
| Faraday / EMP protection | — | — | ✓ |
| SD card pair + tamper-evident bag | — | ✓ | ✓ |
| Staged payment plan | — | ✓ | ✓ |
| Sovereign aftercare | — | — | 3 months |
| Investment | €1,500 | €5,000 | €8,500 |
Build Your Own
Configure your custody ceremony
A guided build, not a download. Answer a few questions, explore each module in depth, then secure your place with a Fit Call — your configuration updates live.
Let's size the build
We build the smallest system that makes every answer "yes" — then we document it. Two quick questions point you to the right starting package.
Where are you on your journey?
What matters most right now?
Recommended for you
Apex of Sovereignty
Explore & tailor your modules
Ten modules, delivered in a deliberate build order across four layers. Tap any module to see exactly what you'll do, what you'll walk away with, and where it happens.
Ongoing aftercare
High-value custody isn't "set once." Choose a level of ongoing protection as tools, threats, and life change — or decide after your build. Apex includes three months of Sovereign aftercare.
Corporate & Treasury Aftercare
A bespoke aftercare programme for companies, family offices and treasuries — dedicated security consultant, 24/7 emergency response, quarterly security & multisig governance reviews, employee onboarding, continuity & inheritance planning, and custom SLAs.
Your sovereignty configuration
Here's your tailored build. Hardware is scoped precisely after Module 02 (Threat Analysis) and shipped in four tranches aligned to the build — final figures confirmed on your Fit Call.
Hardware — staged delivery
How payment works
faq
frequently asked questions
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