ONCEINK How it works Docs Proof CA at launch

Text notes · one read, then ash · no account

READONCE.

Notes that burn after one read. Nothing kept, nothing to sell.

Write a note How it works
  • Encrypted in your browser
  • Key never reaches the server
  • Burn receipts on Robinhood Chain
New note Free
0 / 10,000

What we see: size, time, your IP while you post. Not the text, not the key.

notes burned
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expired unread
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last burn
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01 · KEPT

Somewhere, your chats are inventory.

Many chat apps keep your messages on their servers. That archive is an asset. An AI companion app filed for Chapter 11 this month, and in a bankruptcy, what a company owns goes into an estate that can be sold.

A note here never joins an archive. It is sealed in your browser, opened once, then deleted. There is nothing to list.

02 · SEALED

The server holds a locked box. Never the key.

Three steps, no account. The key lives in the link, after the #, and browsers never send that part to any server.

  1. 1 · seal

    Sealed in your browser

    A random 256-bit key encrypts the text before it leaves your device.

  2. 2 · send

    The key rides after the #

    The server stores ciphertext only. Link previews never open the note.

  3. 3 · burn

    One open, then delete

    Opening and deleting happen in one step. A second click finds ash.

03 · ASH

Every burn, in public.

Each burn leaves a leaf with no text and no key in it. Leaves go on Robinhood Chain in batches, so anyone can check a receipt.

Furnace connecting
—notes burned
—expired unread

    Write something that should exist once.

    Write a note CA at launch See the proof