Digital Legacy · Messages · Crypto
Zero-knowledge

Your digital legacy,
safe for those who need it.

Protect your passwords, crypto assets and memories. The Heartbeat acts automatically if you become unavailable — without anyone, not even Arka, accessing it before.

E2E Encrypted
Non-custodial
Smart contracts
The cost of doing nothing

What if you can't manage this tomorrow?

Not a morbid question. The most practical one you can ask yourself today.

$140 billion

in crypto lost forever

Estimated in wallets with no instructions. Not from hacks — from lack of planning.

Crypto disappears with you

Without instructions, a wallet is a safe with no key. The capital evaporates permanently.

Accounts become locked

Banks, emails, digital subscriptions. Months or years of bureaucracy for your heirs.

Memories never arrive

Photos, videos, letters. Without clear instructions, they never reach those who need them most.

How it works

Four simple steps to protect what matters.

01

Encrypt your data

Store passwords, documents and messages. Everything is encrypted on your device with AES-256 before leaving it.

02

Assign guardians

Choose trusted people. Define how many must confirm access — your personal quorum system.

03

Stay active

A simple periodic check-in confirms you're fine. Arka notifies you before activating any process.

04

Controlled release with a safety margin

If there's no response, your guardians receive access — but with a 24-hour window where you can cancel if you're fine. Exactly as you configured, with an extra layer of protection.

Mi Legado
75%
75%

Legacy score

2 pasos para completarlo

Complete profile
Complete
Vault: 4 encrypted items
Complete
Farewell messages
Pending
3 subscriptions registered
Complete
Guardians assigned
Complete
Heartbeat configured
Pending
Legacy digitally signed
Complete
Crypto inheritance
Optional
Setup assistant

Your legacy in order,
nothing forgotten

A step-by-step guide detects what you've already configured and takes you directly to what's missing. No complex forms, no jargon.

  • Automatically detects what you have and what's missing
  • Real-time score from 0 to 100%
  • Each step links directly to its section
Start the guide for free
Certification

Advanced and verifiable certification

Every will is recorded immutably and can be verified at any time

Professional certificate

Structured legal format, downloadable as PDF and ready to present to any entity.

Public verification

A unique link so anyone can check the document's validity without needing an account.

Blockchain registration

The document hash is anchored on Arbitrum, guaranteeing immutability independently.

Cryptographic integrity

Unique SHA-256 hash certifying the content has not been altered since signing.

Verifiable document, built to legal standards

The certificate includes technical data, cryptographic hash and public verification URL.

VerifiableImmutableDownloadable
Arka

Your entire legacy, protected in three pillars

Messages that arrive at the right moment, secure data, and capital transferred without intermediaries.

Messages & Memories

Videos and letters that arrive at the right moment

Record videos, write letters or leave final instructions. All encrypted and automatically released when the Heartbeat detects prolonged absence.

  • E2E encrypted videos and letters
  • Automatic activation by Heartbeat
  • Guaranteed delivery to your guardians
Digital Safe

Passwords and documents in safe hands

Banking credentials, passwords, deeds, insurance. Organized and encrypted on your device. Only your guardians, with quorum, can access.

  • AES-256 end-to-end encryption
  • Organized by categories
  • Quorum-based guardian access
Web3 Assets

Capital transfer via Smart Contract

Connect your wallet and define beneficiaries. The smart contract executes the transfer automatically without intermediaries. Legal documentation generated for non-crypto heirs.

  • Non-custodial on Arbitrum L2
  • 2% fee only on execution
  • Automatic legal documentation for heirs
Real situations

People like you. Situations nobody plans for.

Arka isn't for when everything's fine. It's so nothing is lost when you can no longer control it.

C

Carlos, 38

Crypto investor

He had €60,000 in Ethereum. His family had no idea it existed — or how to access it. That wallet is now inaccessible.

With Arka: wallet configured, guardian assigned, automatic transfer when the protocol activates.
L

Laura, 44

Digital freelancer

Clients, contracts, banking access — all in her head and on an unprotected laptop. Her children spent 9 months untangling everything.

With Arka: encrypted vault, guardians assigned, delivered in hours — not months.
M

Martin, 52

Father

He wrote letters for his children 'just in case'. He kept them in a notebook nobody could find.

With Arka: encrypted messages, automatically delivered when the Heartbeat activates.
Security-first architecture

Security-first architecture

Built for maximum privacy. We cannot access your data even if we wanted to.

Client-side encryption

Your data is encrypted on your device before being sent. It never travels unencrypted.

Zero access architecture

Our servers only store encrypted data. Nobody at Arka can read your information.

Non-custodial crypto

For crypto assets, we never touch your private keys. You retain full custody.

No key storage

Encryption keys are never stored in our systems. Only you have them.

How the Heartbeat works

The system that knows when to act — without accessing your data

A life signal mechanism that acts on absence of response, never on access to your information.

01

You define the interval

Set how often you want to check in: 7, 30 or 90 days. Passive mode (login only) or active (explicit confirmation).

02

The system monitors without accessing

Arka detects activity through session signals. It never accesses your encrypted data to know if you are active.

03

Prior warning before acting

When 80% of the interval passes without activity, you receive a warning email. You have time to respond and reset the Heartbeat.

04

24-hour safety net

When your guardians reach quorum, access doesn't open immediately. You have 24 hours to cancel with one click if you're fine. Maximum protection against false alarms.

Passive mode: login = check-in
Active mode: explicit confirmation

We never have your keys. Arka acts on absence of a life signal, not on access to your information.

What can you protect?

Everything that matters, in one secure place.

Passwords & credentials

Access to bank accounts, social networks and digital services — encrypted and organized.

Sensitive documents

Wills, deeds, insurance policies. Accessible only when they need to be.

Personal messages

Letters for your children, final instructions. Words that will arrive at the right moment.

Crypto wallets

Premium

Digital asset inheritance via smart contracts. No intermediaries.

Your legacy test

Is your legacy really protected?

Three questions. Thirty seconds. The answer might change everything.

?

Do your trusted people know where your crypto assets are?

?

Can they access your passwords or bank accounts if needed?

?

Are there important messages or instructions that exist only in your head?

Protect my legacy now

Free · No card · Ready in 2 minutes

Transparent business model

No fine print. No surprises.

We know you trust your legacy to our platform. That's why we are completely transparent about how it works and how we make money.

Arkakey never holds your funds

We never touch your money, keys or assets at any time. The smart contract is the only temporary custodian, audited and open source.

2% fee, always and only on execution

We charge 2% on the capital transferred at the moment of inheritance execution. If the protocol never activates, you pay nothing extra. Applies to both crypto transfers and other declared assets.

Automatic legal documentation for heirs

We automatically generate the necessary documentation so heirs can legally justify the capital received before tax authorities, even if they have no crypto experience.

Simple, transparent pricing

Start free. Upgrade when you need more.

Free

€0/month

To get started

  • Up to 10 encrypted secrets
  • 1 guardian
  • Basic heartbeat
  • Email notifications
Get started free
Most popular

Premium

€39one-time

Full certification

  • Official notarial PDF certificate
  • Arbitrum blockchain anchoring
  • Permanent public verification
  • No subscription, one-time payment
Get Premium
Downloadable professional certificate
Blockchain registration
Permanent public verification

View full pricing →

We cannot access your data.

It's not just a promise — it's a technical impossibility.

Your data is encrypted on your device with a key derived from your password.

That key never reaches our servers.

Only you (and those you choose) can decrypt it.

The right time was yesterday.
The second best time is now.

Don't leave what matters most to chance. Create your vault free — no card, ready in 2 minutes.

Protect my legacy now
FAQ

Most Asked Questions

Everything you need to know about your digital vault, crypto inheritance, and how Arka keeps your legacy safe.

Security & Privacy

No. Your data is end-to-end encrypted on your device. Arka never has access to your keys, passwords, or encrypted vault contents — by design.

Everything is stored locally on your device or in your chosen cloud, fully end-to-end encrypted. We never hold or transmit your keys in plain form.

Without your password or recovery keys, Arka cannot unlock your data. This is intentional — it is the core of our non-custodial, zero-knowledge architecture.

The will content is strictly private and encrypted. Only minimal data is exposed to verify the certificate's authenticity: date, version and hash.

Functionality

From your dashboard you can add multiple trusted people as guardians. They only receive access if you become inactive for the period you define in your heartbeat settings.

The system monitors your heartbeat activity based on the parameters you configure. If inactivity thresholds are met, smart contracts automatically unlock access for your guardians.

Yes. You can always update, add, or remove guardians directly from your control panel. Changes take effect immediately.

Each certificate includes a public link where anyone can check its validity, signing date and status. No account or registration is required.

Yes. You can update it at any time. Each version is independently recorded with its own certificate and hash.

Crypto & Payments

Yes. Arka integrates smart contracts to securely transfer crypto assets to your heirs in a fully non-custodial, trustless way — no intermediary holds your funds.

We accept Stripe, credit and debit cards, and USDC on Arbitrum depending on your selected plan. Crypto payments are available for users who prefer on-chain transactions.

Gas fees may be charged to the client or included in the transaction cost depending on your platform configuration and selected plan. Details are shown at checkout.

The document's hash is recorded on the Arbitrum network, ensuring it has not been modified since its creation. It is an immutable proof independent of Arka.

Legal & Compliance

Arka is designed to comply with general digital legacy regulations. However, legal validity varies by jurisdiction, so we recommend consulting a local legal advisor for full compliance.

The system works technically regardless of jurisdiction. However, legal validity may vary and Arka recommends complementary legal support to ensure your digital estate is enforceable.

Only the technical events required for smart contract execution are logged. All vault data remains encrypted and inaccessible to Arka at all times.

The certificate attests to the existence and integrity of your digital will through cryptographic technology. It does not replace a notarial will, but adds a verifiable, secure and permanent layer.

General

Arka combines end-to-end encryption, full user control, and non-custodial crypto inheritance in one platform. No other service offers all three together with a modern, seamless experience.

Unlimited secrets, multiple guardians, priority notifications, crypto inheritance via smart contracts, extended digital vault features, and dedicated support.

Yes. The platform operates globally and supports multiple languages. Note that the legal validity of digital inheritance may vary by country or jurisdiction.

The PDF certificate and its hash remain in your possession. If the hash was anchored on blockchain, the proof of existence is permanent and independent of Arka.