sathian.aiPROOFLearn with Tanda

A gift for a
child you love.

A keepsake to hold.
Savings their parent controls.

For your child, or a child and parent you love.

Create a gift · US$59 ↗Buying for your own child? Start here ↗
Official sample Vault Book front cover: Proof of Growth No. 1.

Proof of Growth

Their drawing, kept in print.

Official matching Vault Book back cover: Proof of Love.

Proof of Love

Your photo and message.

How it works

  1. Choose a drawing

  2. We print and mail it

  3. Their parent claims the vault

US$59 once

A personalized Vault Book with a US$10 starting digital-asset deposit.
Standard shipping and tax included · US & Canada.

Details ↗ · Terms ↗

Create a gift · US$59 ↗

Seven short films

Tanda, a father and two children exploring the classroom together.

Learn with Tanda

Stories, drawing and big questions to explore together.

Explore ↗

Questions

Drawings of childhood milestones, family and a keepsake.
What does US$59 include?

A personalized printed Vault Book, your chosen picture/message and a US$10 starting digital-asset deposit and certificate. Charged in USD. Standard shipping and tax are included for US/Canada.

Why a digital vault?

A keepsake alongside digital assets their parent controls. Digital-asset transactions on open networks can be checked independently.

Why no subscription?

This is a one-time purchase of today’s printed product and starting digital-asset deposit. There is no monthly subscription. Future tools or network activity may have separate terms or fees.

Does the parent need an account first?

You can start the gift first. Their parent accepts it through the book’s QR and controls the vault, subject to the published access and settlement terms.

When does it arrive?

The current estimate is about one week in the US and two weeks in Canada. Check the live delivery, refund and reprint terms before ordering.

More questions ↗ Full terms ↗

For a child and parent you love.

Create a gift · US$59 ↗Buy for your own child ↗

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