OB3 Legacy

Your words, preserved forever.
Delivered exactly when you want.

A blockchain-secured digital legacy vault. Write letters, record instructions, and preserve what matters most. Delivered to the right people at the right time. Tamper-proof. Permanent. Private.

Create My Legacy VaultVerify a Legacy Record

Your message content is encrypted and private. Only a cryptographic proof lives on the blockchain.

$9.95
Starting price
One legacy letter
100%
Private content
Encrypted, not on-chain
Forever
Blockchain proof
Permanent record
Any
Trigger condition
Date, event, or manual
What Is It

More than a will. More than a note.

A Legacy Vault is a permanent, tamper-proof record that your messages and instructions existed at a specific date and time. The blockchain proves authenticity without exposing your private content to the public.

Legacy Letters
Personal messages to your children, spouse, friends, or anyone who matters to you. Written today. Delivered exactly when you specify.
Important Instructions
Account locations, digital asset instructions, insurance policies, property deeds, passwords, and final wishes. All organized in one place.
Proof of Existence
The blockchain creates a permanent cryptographic proof that your messages existed and have not been altered. This is not a legal will but it is legally significant evidence.

Your Privacy Is Absolute

Your actual message content is encrypted before it ever leaves your device. Only you and your designated recipients can read it. What goes on the blockchain is a cryptographic hash -- a mathematical fingerprint that proves the content existed and has not been changed, without revealing what the content says.

This is the same approach used by law firms for document notarization and courts for evidence integrity. The blockchain proves when something was written and that it has not been altered -- without making it public.

Pricing

Choose your vault

Legacy Letter
$9.95
one-time
+One message to one recipient
+Time-locked or trigger-based delivery
+Blockchain proof of existence
+Encrypted content storage
+Email delivery to recipient
+Permanent record
Most Popular
Legacy Vault
$24.95
one-time
+Unlimited messages
+Up to 10 recipients
+Document inventory section
+Multiple delivery triggers
+Annual keepalive ping
+Trustee designation
+Everything in Letter
Family Legacy
$49.95
one-time
+Everything in Vault
+Up to 25 recipients
+Family tree documentation
+Attorney notification option
+Audio and video messages
+Priority review
+Annual renewal $9.95

Annual keepalive subscription ($4.95/yr) available to confirm the vault owner is active and extend the delivery window indefinitely.

How It Works

Set it once. It works forever.

01
Create Your Vault
Choose your plan, enter your information, and designate a trustee if using event-based delivery.
02
Write Your Messages
Write letters, record instructions, upload documents. All content is encrypted before storage.
03
Set Delivery Triggers
Choose a specific date, a trustee confirmation event, or leave it manual. You control everything.
04
Blockchain Anchored
A cryptographic proof of your vault is permanently anchored on Polygon. Your OB3-LEG code is issued.

Important Note

OB3 Legacy is not a legal will or testament and does not replace professional legal advice. It is a permanent cryptographic record that your messages existed at a specific date. For legally binding estate planning, please consult a licensed attorney in your jurisdiction.

Video

Watch how it works

See how easy it is to get started in minutes.

The best time to do this is today

Starting at $9.95. Your content stays private. The blockchain proof lasts forever. The people you love will receive exactly what you intended.

Create My Legacy Vault

Questions? hello@onboard3.io

OB3 Legacy · Onboard3 · A BlockUserve Company