What happens to my crypto if I die?

Without a plan, your crypto is lost forever. Deadhand uses Shamir's Secret Sharing to split your seed phrase into 3 shards. If you stop checking in, your beneficiary receives the missing piece to recover your assets.

Yes. Deadhand uses information-theoretically secure cryptography. We never see your full seed phrase. Each shard alone reveals zero information about your secret.

What if Deadhand gets hacked?

Attackers would only get one shard, which is mathematically useless. They cannot recover any seed phrase without the other shards held by you and your beneficiary.

How much does Deadhand cost?

Deadhand costs $100/year or $400 for lifetime access. There's also a Self-Hosted Pro option for $299 one-time.

Codestin Search App

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      your crypto shouldn't be lost forever

You are the tech-savvy one. They are not.

If you die tomorrow, your crypto dies with you. Your family will be left fighting banks, funeral homes, and grief, alone. Don't add poverty to their heartache.

Deadhand is your final act of protection. It delivers your assets, exactly when they need them most.

start the apex defense →

if you got hit by a bus today, who in your life could access your crypto to pay your bills?

the fail-safe system

We use Shamir’s Secret Sharing, an industry-standard protocol that splits your "emergency access" into three unique pieces. We handle the heavy cryptography; you just keep the keys.

2 shards = full recovery. 1 shard = zero information.

it’s like points on a paper: one point tells you nothing about the line. with two, the path is absolute.

shard a
you keep

shard b
your family holds

shard c
deadhand guards

1. you're always in control: you keep one piece, your family keeps another. you can recover your keys anytime, completely offline, without needing us.

2. we guard the safety net: we guard the third piece. if you ever stop checking in, we release it to your family so they can unlock the legacy you worked to build.

f(x) = S + a_1x + a_2x^2 + \dots + a_{k-1}x^{k-1}

no custodians. no tracking. no middlemen. just a private bridge to your family. we don't hold your funds, keys, or passwords. your data is encrypted at rest and in transit. deadhand is the safety net that ensures your family isn't left empty-handed.

Privacy is the strongest credential

The Apex Defense

ONLY 11 SLOTS REMAINING

Lifetime Sovereignty

$400

Equivalent to 30 minutes with a specialized estate attorney.

• The Watch (Permanent Heartbeat)
• Recurrent Updates
• Priority Sovereign Support
• Single one-time payment

Activate The Watch →

Annual Guard

$100/year

Protection for the price of a monthly subscription.

• The Watch (Standard Heartbeat)
• Secure Shard Storage
• Email Escalation Alerts
• Cancel anytime

Protect Your Legacy

don't trust us? run it yourself. (1,700+ clones, last 2 weeks)

100% money-back guarantee within 30 days. No questions asked.

there's nothing else like this

i spent weeks looking. exchanges, lawyers, multisig, custodial apps, tokenized DAOs, metal plates... all garbage.

exchanges: kyc hell. they'll freeze your family's money for "verification" while the market crashes.
lawyers: they understand houses, not private keys. too slow and too expensive.
multisig: good luck explaining "cosigning" to your mom.
private wealth firms: $6,000/yr for 'white glove' service.

custodial apps: they hold your keys. If they go bankrupt (FTX?), you're a creditor, not an heir.
tokenized daos: if the token crashes, the nodes quit, your sarcophagus stays buried.
metal plates: great against fire, terrible against a $5 wrench.

want a deep technical audit? read our 2026 crypto inheritance guide: deadhand vs casa vs unchained vs sarcophagus

social proof

security

we get hacked

deadhand only touches shard c. it is cryptographically useless without the other pieces.

we go rogue

the protocol is non-custodial by design. reconstruction requires 2 shards; we only have 1.

deadhand shuts down

you always possess shard a and shard b. recovery is possible entirely offline.

man in the middle

all splitting logic executes in your browser. your seed never traverses the network.

community audited

our cryptographic core is battle-tested and constantly reviewed by the security community.

absolute privacy

no kyc, no tracking. your legacy is your business, not a public record.

code is open source. go read it and ask ai.

no lock-in

we use standard BIP-39 and Shamir's Secret Sharing. if deadhand disappears tomorrow, you can recover your keys using ssss-split on linux or any other standard offline tool. the emergency exit is always open.

not just crypto

deadhand works with any secret: GPG keys, SSH keys, password managers, hardware security keys.

faq

The core cryptography is 100% trustless. The only service component is email delivery. We use Resend with a Gmail fallback to ensure 100% delivery of activation emails. Our database is immutable. Even as administrators, we cannot access or modify beneficiary shards.

Absolutely not. Deadhand is architected as a non-custodial protocol. We only hold Shard C, which is mathematically insufficient to reconstruct your private key. The recovery process requires two out of three shards. Since only you and your beneficiary hold the remaining pieces, we have zero access to your assets.

No. We believe in transparent, flat-rate pricing. Whether you are protecting $1,000 or $100,000,000, the protocol cost remains the same. We do not charge percentage-based success fees or performance taxes on your inheritance.

The protocol is built on open standards. Because we use standard Shamir's Secret Sharing (SSS) and BIP-39 mnemonic logic, you are never locked into our service. If our servers ever went offline, you could use any standard offline SSS utility like ssss-split on Linux to combine your shards and recover your assets. Your legacy is protected by math, not a company.

Deadhand supports any secret that can be represented as a string, including all BIP-39 compliant seed phrases. This makes it universally compatible with Bitcoin, Ethereum, Solana, and thousands of other assets across all major hardware and software wallets.

This is precisely why the protocol exists. You can combine Shard A (which you keep) with Shard B (held by your family) at any time to instantly reconstruct your original 12 or 24-word seed phrase without any assistance from our servers.

Never. The Deadhand switch is governed by strict, autonomous logic with no manual override capability. This Hard Logic ensures that no amount of social engineering can force a premature release of Shard C. The safety of your vault is absolute.

No. Your beneficiary only holds Shard B. To recover the seed, they need a second shard. Shard C is held in our secure vault and is only released after our autonomous monitoring confirms 90 days of total inactivity, following multiple failed check-in attempts via your primary contact method.

Institutional actors understand that the primary risk in digital asset management is the Probabilistic Finality of Loss. If you manage $10M+ in digital assets ($ A $), with a conservative 1% annual risk of accidental technical entropy ($ P_{entropy} $, e.g., lost seeds, sudden incapacitation), your expected annual loss is $ A \times P_{entropy} = \$100,000 $.

The Deadhand Protocol re-engineers this equation. By distributing recovery risk across a 2-of-3 non-custodial threshold, the Expected Value ($ EV $) of protecting your legacy is calculated as:

\[ EV = \left[ A \cdot (1 - P_{failure\_red}) \right] - C_{lic} \]

Where $ C_{lic} $ is the nominal protocol license. For HNW users, this results in an asymmetric ROI that scales exponentially with the size of your vault. It is not an expense; it is a vital hedge against catastrophic technical finality.

Comparative Efficiency: For a $1,000,000 portfolio, the probabilistic cost of technical neglect is approximately $10,000 per annum. At a $100 entrance fee, the protocol provides a 100:1 risk-mitigation ratio. For a $10,000,000 vault, the ratio scales to 1,000:1. The cost is mathematically negligible; the protection is absolute.

Deadhand Protocol: Trustless Crypto Inheritance & Dead Man's Switch