Not your keys,
not your bots.

Now your keys. Your bots.

Your AI knows you because OpenAI told it to.
Exo lets your AI know you because you told it to.
On-chain. Encrypted. Yours.

The Problem

Feb 2025

OpenAI wiped 6 months of user memories.

No warning. No recovery. No accountability. Affected users lost months of conversation history forever.

[OpenAI Status Page, Feb 2025]

Every time

When you switch models, your AI starts from zero.

ChatGPT to Claude. Claude to Gemini. Each switch resets everything. You re-explain yourself every session.

Always

Your AI's memory belongs to the company.

You are a user, not an owner. The platform controls what it knows about you — and can delete it without notice.

The Exo Answer

Every memory lives on Arkiv

Wallet-signed. Tamper-proof. Immutable $creator field on every entity. Not even we can delete your memories.

Encrypted before it leaves your browser

AES-256-GCM encryption. Your key is derived from your wallet signature — never stored anywhere.

Works with any model

Claude today. GPT tomorrow. Gemini next week. Your context travels with you across every model.

Architecture

↓User connects wallet

↓Exo derives encryption key from wallet signature (client-side only)

↓AI fetches context from Arkiv Braga (public read)

↓Decrypted in browser · Server never sees plaintext

↓AI responds with full knowledge of who you are

↓New memories written to Arkiv · Signed by your wallet

↓You own the memories · Platform owns nothing

6 Entity Types on Arkiv

Semantic Memory

Facts about you — permanent

Episodic Memory

Past sessions — 90 day TTL

Instructions

Standing rules — permanent

Documents

Reference files — 1 year TTL

Access Grants

Time-scoped sharing

Snapshots

Version history — 1 year TTL

Your keys.
Your bots.

Start building your sovereign AI memory on Arkiv Braga. It takes 60 seconds.

Not your keys,not your bots.