The New Standard for Bitcoin Inheritance.
Introducing the first autonomous inheritance solution, designed to outlive us. Choose our breakthrough on-chain timelock or our proven off-chain recovery. Both include ongoing support and guided claims for your heirs. Always non-custodial. Always zero KYC.
New to estate planning? Read our Definitive Guide to Bitcoin Inheritance first→
No lock-in. Ever.
We believe you should never be trapped in a service. The Nunchuk inheritance plan is designed to be fully independent. While our platform makes claiming an inheritance simple, your Beneficiary always has the self-sovereign option to access the funds on their own, without our involvement. The choice is always theirs.
WHAT'S YOURS STAYS YOURS
We can't move your bitcoin. We hold only one key in your wallet, adding security while never having access on our own.
After the timelock expires, the wallet's rules automatically change on-chain: our Platform Key is removed, and the signing requirement drops. This empowers your Beneficiary's key, giving them sole control to claim the funds. We're your security partner, not your bank.
Maximum privacy
Nunchuk's inheritance plan is built on cryptographic secrets, not proof of identity. That means both you and your Beneficiary can keep your privacy.
Guaranteed execution
The inheritance unlocks precisely on the pre-determined date you set. Once committed to the blockchain, the parameters are immutable—guaranteeing the execution of your plan exactly as intended. Our platform allows you to leave customizable messages and set notification preferences for your Beneficiary.
COMPATIBILE WITH YOUR ESTATE PLAN
Nunchuk's inheritance plan can work independently or within your existing estate plan. Choose among a flexible set of inheritance options: direct inheritance, indirect inheritance, or joint control.
GLOBAL AVAILABILITY
Nunchuk's inheritance plan is completely digital and available to everyone around the world. Just like how Bitcoin is meant to be.
Future-proof architecture
Your legacy is secured by the world's most resilient network. We utilize advanced Bitcoin standards (Native Segwit and Miniscript) that minimize data exposure by keeping public keys hidden until spending. This provides practical resistance against long-term threats—including long-range quantum attacks—ensuring your plan persists for generations.
how inheritance plan works
The Magic Phrase is the simple way for your Beneficiary or Trustee to find the plan using our service. For complete independence, the wallet configuration (BSMS file) is their sovereign backup. Think of it as the map to the vault; it's the first piece needed to recover the wallet without our help.
This 12 or 24-word phrase is the master key to the inherited bitcoin. Your Beneficiary or Trustee will need this phrase to unlock and access the funds.
The timelock is a countdown you set directly on the Bitcoin network. The plan remains dormant until your chosen date arrives. After this date, the inheritance activates, and your Beneficiary or Trustee is officially able to claim the funds.
Thanks to our unique design, Nunchuk's inheritance plan is highly flexible and can adapt to many use cases.
The simplest way to use the plan is to give the Beneficiary direct control over the two secrets. After the timelock, they can claim it for themselves.
Alternatively, you can choose to leave both secrets with a trusted guardian. This can be the Trustee of your estate plan. After the timelock, the Trustee is empowered to claim the inheritance and deliver it to the Beneficiary.
The third option is to split the two secrets between the Beneficiary and the Trustee. This ensures that neither party has unilateral control over your bitcoin. After the timelock, the Beneficiary and Trustee will need to combine the two secrets in order to claim the inheritance.
Tutorial: How to set up a Bitcoin inheritance plan with an on-chain timelock
