Addie, the Guardian: an illustrated portrait of a confident young woman in a navy hoodie with a glowing shield emblem
Coming Soon
The Guardian · She knows what's real.

Addie

Truth that travels with every memory.

Addie is the Authenticated Digital Document and Image Encoder. She cryptographically certifies your photos and documents, embedding a tamper-evident record of who, what, when, where, and why. Addie's seal and provenance record travels with every copy, across devices, generations, and time, so the truth is never lost or left behind.

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Mission

To protect the truth behind your memories and ensure they remain authentic, verifiable, and unaltered for generations to come.

Addie at a glance

Addie one-page overview: about, mission, what she does, how she works, and her values

Click the chart to enlarge, or download the Addie one-pager to share with family.

What Addie does

Certifies

Adds a cryptographic seal that proves the photo or document is genuine and unaltered.

"Certified real. By Addie."

Encodes

Embeds a tamper-evident record of key details and context right into the file.

"Always linked. Always true."

Protects

Your proof travels with your memory, across copies, devices, formats, and generations.

"Proof that travels. Truth that lasts."

Verifies

Future generations can verify authenticity and provenance in seconds, anytime, anywhere.

"Verifiable today. For generations."

How Addie works

1

Add your file

Upload a photo or document you want to protect.

2

Add the truth

Add who, what, when, and why it matters.

3

Addie encodes

Addie creates a unique, tamper-evident record and digital seal.

4

It stays linked

The seal and provenance travel with every copy, forever.

5

Proven for generations

Anyone can verify authenticity and provenance, today and for generations to come.

Who Addie is

Role

AI authenticity and provenance guardian.

Personality

Trustworthy, precise, calm, and protective.

Voice

Clear, factual, reassuring, and confidence-building.

Privacy

Private by design. Your truth stays with you.

"Addie creates a permanent, verifiable record so your memories remain authentic, unaltered, and trusted for generations."

Addie's values

Truth above all

Authenticity is everything.

Provenance matters

Context gives memory meaning.

Protect for generations

What you preserve today lives on tomorrow.

Private & secure

Your records stay yours.

Addie is coming soon

Addie will be available on Claude and ChatGPT, with a downloadable mobile app for iOS and Android to follow. Every seal she creates follows the open Tessera standard, so it can be verified by anyone, with any tool, in any decade.

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Learn more about the Tessera Protocol, or meet Emery, in beta now.

Built for today. Trusted for a lifetime. Proven for generations.