Nordic Bitcoin Vaults

Sovereign vaults, forged in the north.

Heimdall Vaults pairs collaborative control with unstoppable user exits. Heimdall protects your Bitcoin from everyone, including your own mistakes, while still giving you the option of unilaterally exit the vaults.

Secure Heimdall server enforces safety
Simple Low user burden
Sovereign User can unilaterally withdraw
Concept art of Heimdall Vaults hero interface
Protocol flow

Server protection, sovereign exit.

Heimdall enforces safety and handles operations, so users face almost no complexity. Yet every vault includes one unbreakable path for unilateral withdrawal, guaranteed by the Bitcoin protocol itself. Heimdall achieves all this without ever being in a position where we custody or control your funds.

I

Vault Collaborative 2-of-2

All funds sit in a co-signed multisig vault.

In normal use, Heimdall co-signs instantly with you, keeping withdrawals and transfers simple and immediate.

  • Secure 2-of-2 P2WSH
  • Instant happy-path exits with Heimdall
II

Transit Resilient timelocks

A presigned transaction moves funds to a transit vault built to recover from failure on either side.

If Heimdall disappears, you can exit unilaterally after three months. Both parties also hold timelocked, presigned recovery transactions so funds are always reclaimable.

Lose every key and backup? Heimdall can publish the recovery package after six months to restore your access.

  • 0s: joint recovery anytime
  • 3 months: unilateral user recovery if Heimdall is gone
  • 6 months: Heimdall-assisted recovery if user lost all keys and backups
III

Recovery Destination Wherever you choose

When funds leave the vault, whether routine spend or recovery, they land in destinations you preselect.

Heimdall only relays transactions and never takes custody.

  • Presigned recovery to Self-custody, heirs, or to a third party custodian
  • Heimdall never unilaterally controls your funds
Scenario protections

Every failure mode is modeled and defended.

Heimdall Vaults is built for chaos-resilience. Explore each scenario to see how the vault, transit script, and recovery packages respond when things go wrong.

Vault 2-of-2 multisig
Protected scenario

Normal operations

User initiates a spend, Heimdall runs policy checks, and both parties co-sign directly from the multisig vault for instant settlement.

  1. 1
    Request

    User initiates a withdrawal request inside the Heimdall app.

  2. 2
    Policy checks

    Heimdall enforces approvals, spending limits, and role separation in real time.

  3. 3
    Joint signature

    Heimdall and the user co-sign directly from the vault and broadcast instantly.

Recovery clock Immediate
Outcome Funds land at the user’s chosen destination.
Why Heimdall

Resilient custody without the burden.

Self-custody is brittle. Custodians require trust. Multisig adds complexity. Heimdall offers a new path: operational protection handled for you, with sovereignty guaranteed by Bitcoin itself.

Multisig without the burden

All the security of a 2-of-2 vault, none of the user headaches. Heimdall handles the coordination and policy checks — you just approve and move. Your key lives locally in the Heimdall app while Heimdall's secure key co-signs, so you never need a hardware wallet to stay protected.

Easy

Stronger than custody

Heimdall never has unilateral control of funds. You always hold an unstoppable exit path.

Sovereign

Recovery when it counts

If keys are lost or compromised, Heimdall helps you restore access — without ever taking custody.

Safe

Proven Bitcoin-native design

Built only from standard Bitcoin primitives: multisig, timelocks, presigned transactions. No new chains, no bridges.

Bitcoin-first

Built for teams

Role separation, approval flows, and audit trails support treasury and finance teams out of the box.

Team-ready

No lock-in

Clear documentation of keys and exits means you can migrate or self-manage anytime.

Portable
For investors

Bridging the gap in Bitcoin custody.

Heimdall Vaults delivers what neither self-custody nor custodians can: operational protection without surrendering control. This unlocks a global market of treasuries, funds, and institutions seeking Bitcoin exposure without operational fragility.

  • Massive addressable market: individuals, corporate treasuries, funds, DAOs, family offices
  • Unique model: server-enforced safety with sovereign user exits
  • Inheritance solved: presigned recovery paths unlock safe wealth transfer
  • Team governance: roles, policies, and approvals built into self-custody
  • Revenue via service retainers, enterprise integrations, and team vault packages
FAQ

Answers for security teams and curious vikings.

We designed Heimdall Vaults to remove doubt. If your question isn’t answered here, it should be — reach out.

Is this a multisig wallet or a new blockchain?
It’s pure Bitcoin. Standard P2WSH multisig, timelocks, and presigned transactions. No new chains, no bridges, no wrapped assets.
Is Heimdall Vaults a custodial service?
No. Heimdall never has unilateral control over your Bitcoin. All funds reside in 2-of-2 multisig vaults, where you always retain an independent exit path enforced by the Bitcoin protocol itself. Heimdall’s role is to provide the protections you’d expect from a custodian — policy enforcement, monitoring, and recovery options — but without ever holding custody. This way you get maximum safety and support, with sovereignty guaranteed in code.
What if the exit transaction leaks?
No risk. A leaked exit tx only moves funds into the Transit vault, which still allows immediate joint spend. Leak ≠ loss.
What if Heimdall goes offline or is compromised?
You can broadcast your copy of the exit transaction and unilaterally spend after the 3-month timelock. Heimdall is never a single point of failure.
What if the user loses their key?
After 6 months, Heimdall can help publish the presigned recovery transaction you approved in advance. Funds flow directly to your chosen destination; Heimdall never takes custody.
How does inheritance work?
You can designate heirs or executors as recovery destinations. If keys are lost, Heimdall ensures funds are broadcast to those wallets after the timelock — without ever taking control.
Can teams use Heimdall for shared treasuries?
Yes. Role separation, approval workflows, and audit trails are built in. Teams can enforce policies without adding user complexity.
Are the timelock durations configurable?
Yes. Default is 3 months (user exit) and 6 months (assisted recovery). Enterprises can adjust with clear security trade-offs.
What if Heimdall disappears completely?
The unilateral exit path is enforced by Bitcoin itself. You don’t need Heimdall to recover your funds — sovereignty is guaranteed at the protocol level.
Can we migrate away from Heimdall later?
Yes. All key material, seed rotation, and exit mechanics are documented. You can always move to self-management or another provider.
Pilot access

Join the watch.

We are actively building. Contact us to receive updates and the first pilot invitation.

Reach us anytime at enlightened.dev21@gmail.com.