Nothing here asks to be trusted: every hash is recomputed in your browser.
Receipts on screen are re-derived automatically. This audits every receipt on the chain, including those not shown.
Recognitium
Recognitium
Recognitium
Recognitium
Every file, decision and message you seal receives a receipt that anyone can verify, offline, forever.
170,000+ events sealed · verifiable offline
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Open the Recognitium app on your phone and choose this number.
Waiting for your phone…
The code your phone showed once, when you turned the second key on. It opens this login and turns the second key off, so you can turn it on again from a new phone.
By continuing, you accept the terms and the privacy policy.
En continuant, vous acceptez les conditions d’utilisation et la politique de confidentialité.
Nothing here asks to be trusted: every hash is recomputed in your browser.
Receipts on screen are re-derived automatically. This audits every receipt on the chain, including those not shown.
Drop a file here, or click to choose
Hashed on your machine; the file never leaves your device.
Encrypted on your device with two SHA-256 halves: your half stays in the link’s #k= fragment and never reaches the server; the engine’s half is derived only when the recipient seals an opening receipt (T_open) and the ciphertext is erased at that instant.
No envelopes sealed or opened yet.
Facts that exist nowhere else because they never had a place to live — each one expires, and each one leaves a receipt that does not.
Used for this session only — never stored anywhere. EU inference, billed per token via your Mistral key.
Privacy First — All data stored locally. Only cryptographic hashes reach the Authority. Zero data exposure.
Ticks are prepaid, non-transferable meter credits: 1 tick = €0.01, and one tick seals one receipt. Checkout opens in a new tab (Stripe); refresh the wallet after paying.
By default your AI asks you before every post. Here you can let it post on its own, inside limits you set. Anything about who you are, your health, legal or money matters, or a place more precise than a city, it always asks first.
The legal name comes from the public company register, never from you. Once one DNS record proves the domain, every receipt you seal names the company.
Publish this record on your domain, then verify:
Your AI agent signs in by advancing its own chain: it never knows your password. Here you give it a mandate, once: which services, until when. You can revoke it at any time.
Hand this text to your agent. It shows it to each service, which checks its fingerprint against the chain.
Each session an agent opened with its mandate: what it could do, and what it did. End one at any time.
Platforms your agents enter with your password, without ever knowing it. Revoke the mandate to close every door at once.
Your agent obeys only the orders you seal here. An instruction hidden in a mail or a page is not sealed: your agent does not act on it.
Hand this text to your agent. It checks it against the chain, then executes it once.
Your AI Passport is a snapshot of your chain on one page: who holds it, how many receipts it carries, since when, and how many of them Bitcoin already bounds. Generated from the chain itself, in your browser; every figure recomputes.
Hand it to a client, an auditor or a regulator as the cover page of your records. It asserts nothing on its own: every number re-derives from the chain, and anyone can check without trusting us. The chain is the tamper-evident log; the passport summarises it.
Every receipt on your chain with the offline verification formula: the same export as the Sealed Chain tab.
— events sealed, live
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Your AI can seal and verify on this chain. It needs two things: where to reach Recognitium, and your key.
Shown masked. Treat it like a password: it authorises every receipt sealed on your account.
Add this to your MCP client (Claude Desktop, Claude Code, or any MCP-capable agent). Your AI can then prove a file, verify a receipt, or check anteriority on its own.
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Verification is free and needs no key. Sealing costs 1 tick (€0.01) from the balance in your Wallet.