How it works

Trustless inheritance,
enforced on-chain.

Pass on Bitcoin and Ethereum to your family — no lawyers, no custodians, no middlemen. Secure, automated estate planning for crypto.

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How it works

Every step is enforced by smart contracts. No custodian, no company, no individual can move funds alone.

01Create a threshold multi-sig

Default 2-of-3 (configurable). You generate three keys — Key A stays with you, Key B is for your heir, and Key C is encrypted on your device and escrowed by the protocol (the protocol never sees the plaintext).

While alive, you control all three keys. After distribution and escrow, no single party — heir or protocol — can move funds alone.
02Your heir initiates a claim

When the time comes, your heir starts a claim on the protocol. A staked verifier pool is randomly selected and assigned.

Verifiers have funds at risk and are slashable for bad behavior.
03Waiting & verification

A waiting period begins — default 3 months, configurable longer. Verifiers must contact you to confirm you’re alive. Optional extra evidence such as a death certificate can be required.

If you confirm you’re alive on-chain, the claim is canceled.
04Automatic release

If the waiting period elapses without objection and conditions are met, the protocol enables a valid 2-of-3 path for your heir to receive the assets.

Funds move only when quorum is satisfied. No party can bypass policy.
05Heir Readiness Kit (offline)

Step-by-step instructions to prepare a USB disk for your heir (wallet app, public info, recovery guides). Private keys are never stored unencrypted.

Security model
  • Trustless: Keys, policies, and claims enforced by smart contracts.
  • Key privacy: Protocol stores only an encrypted key (never usable alone).
  • Quorum required: No single party can move funds unilaterally.
  • Incentive aligned: Verifiers are staked and slashable.
  • Auditability: All actions are visible on-chain, personal data stays off-chain.
Policy options
  • Waiting period: 3+ months (configurable).
  • Extra documents: death certificate, notarized proof, etc.
  • Multi-heir, multi-jurisdiction, and higher quorums (e.g., 3-of-5).

Frequently asked

Questions we hear most often.

You submit a simple on-chain objection (or respond to verifier outreach). The claim is canceled and funds remain in place.

No. The protocol only holds an encrypted key. Neither the protocol, a company, nor an individual can meet quorum alone.

No. You can choose higher thresholds (e.g., 3-of-5) or multiple heirs. The same trustless rules apply.

Yes. You can make release conditions stricter by requiring documents such as a death certificate in addition to the waiting period and verifier checks.

This app may generate private keys for heirs and the protocol-related escrow key entirely client-side in your browser. All cryptographic operations occur locally; plaintext keys are never transmitted. The codebase is open-source for transparency and auditability.

We use Safe (formerly Gnosis Safe), a widely adopted and well-audited multisig smart contract system. Learn more in the Safe documentation.

To bring BTC into an EVM policy, use an ERC-20 representation:
  • wBTC — Wrapped Bitcoin (custodial): BTC is held by a custodian; you receive ERC-20 wBTC on Ethereum.
  • tBTC — tBTC (trustless): a decentralized bridge mints ERC-20 tBTC backed by BTC without a single custodian.

For clarity and security, create a separate Safe per heir or asset bundle. This isolates risk, lets you customize thresholds per heir, and simplifies execution.

No. Only the attestors you assign can decrypt your contact details and Safe address. The public sees only encrypted blobs on-chain.

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