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Don’t trust lawyers. Trust math. Private, zero-knowledge Bitcoin inheritance using Shamir’s Secret Sharing ⚡

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Deadhand Protocol

Trustless dead man's switch for crypto inheritance.

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What is this?

You die. Your family gets $0.

Deadhand solves crypto inheritance without trusting a lawyer, a bank, or even us.

It uses Shamir's Secret Sharing to split your seed phrase into 3 "shards".

  • Shard A: You keep.
  • Shard B: You give to your beneficiary.
  • Shard C: We hold (encrypted).

If you don't check in for 90 days, we send Shard C to your beneficiary. They combine B + C to recover your funds.

Until then, nobody, not even the FBI, can access your money.

Why use Deadhand?

Feature Deadhand Traditional Wills Exchange Custody
Trustless ✅ Yes ❌ No (Trust Lawyer) ❌ No (Trust CEO)
Cost $0 $500 - $5,000 0% - 1% fees
Privacy Client-Side Public Probate KYC / Gov ID
Setup Time 2 Mins Weeks Days
Censorship Impossible Possible Likely

Features

  • 🛡️ Zero Knowledge Architecture: We never see your seed phrase. Encryption happens in your browser.
  • Automated Heartbeat: 30-day email check-ins. 90-day trigger.
  • 🦀 Rust Core Power: High-performance Wasm crypto engine for maximum security and speed.
  • 🧩 Shamir's Secret Sharing: Mathematically proven 2-of-3 threshold scheme.
  • 🔊 Steganography Tools: Hide your shards inside audio files or images for plausible deniability.

Quick Install

Want to run the protocol yourself?

# 1. Clone the repo
git clone https://github.com/pyoneerC/deadhand.git

# 2. Install dependencies
pip install -r requirements.txt

# 3. Run the server
python -m uvicorn app.main:app --reload

Note: For production use, we strongly recommend using our hosted version at deadhandprotocol.com to ensure heartbeat reliability.

Documentation

Full documentation is available at deadhandprotocol.com/docs.

Recognition

"Un outil open source pour léguer vos cryptos en cas de décès (sans tiers de confiance)." — Korben.info

"Опенсорс-протокол для передачи крипто-наследства." — Habr.com

Contributing

We love contributors!

  1. Fork the repo.
  2. Create a new branch.
  3. Make your changes (and add tests!).
  4. Submit a PR.

Current Priorities:

  • Hardware wallet integration (Ledger/Trezor)
  • Mobile app wrapper (React Native)
  • More steganography formats (Video/PDF)

License

This project is licensed under the Business Source License 1.1 (BSL).

  • Free for personal use.
  • Free to audit and research.
  • Paid for commercial hosting.

On January 1, 2030, it becomes fully open source (AGPL v3).


Built for sovereignty.

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Don’t trust lawyers. Trust math. Private, zero-knowledge Bitcoin inheritance using Shamir’s Secret Sharing ⚡

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