Even
can't read it.

Write to any wallet. Your note is encrypted in your browser and opened by one address. Unreadable by everyone else, including us.

Open EveSee it encryptDocs
CA Not live yet
Note length
5,000 words
Plaintext on our servers
0 bytes
Cost to send
0 gas
Who you can write to
Any wallet
01Premise

Your note is locked before it leaves your browser, opened only by keys that their wallet can derive, and carried by servers that see nothing.

02The wire

Watch it leave. Watch what we get.

This is the production cipher running on this page with two throwaway identities. The middle column is everything our database would hold.

Live. Runs in your browser.
Recipient already has Eve keys. The note key is locked to them and delivered at once.
You writePlaintext
11 words. Type to re-encrypt.
Eve storesAll we ever hold
No key. No plaintext. Nothing to hand over.
They readDecrypted locally

Signature check failed
03Any wallet

Send first. They verify after.

Most encrypted messengers make the recipient sign up before you can write to them. Eve does not. Address a note to any wallet on Robinhood Chain today, and it waits, sealed, until its owner shows up.

A / SEAL

You seal the note to an address

Your browser encrypts it under a fresh one-time key. We store the ciphertext against the recipient's address. The key stays with you.

B / DELIVER THE KEY

The key travels without us

Private linkThe key rides in the URL fragment, which browsers never send to any server. Opens the instant they connect.
Automatic handoffNo link at all. When they join Eve, your device wraps the key to their verified public key next time you are online.
C / VERIFY

Their wallet proves the inbox is theirs

The recipient connects, signs once to derive their keys and once to publish them. We release ciphertext only to the address it was sealed for, and only they can open it.

04The ledger

Our database, in full.

If someone subpoenas it, steals it or leaks it, this is what they get. One row per note. No column holds anything readable, because nothing readable ever arrives.

ColumnWhat is storedWhat it reveals
idkJ3vQ0nX2cTt8mWq1yRb5ARandom. Says nothing about the note.
sender0x8f3c...a41ePublic wallet address.
recipient0x27b0...9d06Public wallet address.
nonceq2lWm8Jr0pX4vN7sKc1dZtY9hB3uEo6fPublic by design. Useless without the key.
ciphertextx9Fh2kLm...4,096 more bytes...Qw7Zr1The note, encrypted and padded so length leaks little.
recipient_wrapepk + nonce + 48 sealed bytesThe note key, locked to the recipient. We cannot open it.
sigEd25519, 64 bytesProves the sender. Checked by the reader, not by trust in us.
05Features

Small surface. Sharp edges.

Eve does one thing. It moves words from one wallet to another without anyone in between being able to read them.

5,000 words

Room for a real letter, a term sheet or a full set of instructions. Not a text box with a character cap.

Notes to self

Address a note to your own wallet. A private vault that follows your keys to any browser.

Burn after reading

Flag a note and it is erased from our database the moment the recipient opens it.

Signed by the sender

Every note carries a signature the reader verifies locally, so nobody can forge a sender. Not even us.

No gas, no transactions

Eve only asks your wallet for signatures. Nothing is written on chain and nothing is spent.

Nothing to install

No accounts, no email, no phone number. If you hold a Robinhood Chain wallet you already have an inbox.

06Network

Your Robinhood Chain wallet is your inbox.

Eve uses the wallet you already hold as your identity. Sending a note needs no approval, costs no fee and writes nothing on chain. Connecting adds the network to your wallet if it is missing, and that is the only thing it changes.

Chain ID4663
Gas tokenETH
Cost to send0
CA Not live yet
07Questions

Fair questions.

Privacy tools earn trust by being specific. The docs walk through every screen, and the protocol page goes field by field.

Can Eve read my notes?

No. Notes are encrypted in your browser before they are sent. Our servers and database only ever receive ciphertext, and the keys that open it are derived inside your browser from a signature only your wallet can produce. There is no master key and no recovery backdoor.

How can I write to a wallet that has never used Eve?

Your note is sealed with a one-time key that never reaches us. You get a private link that carries that key in the part of the URL browsers never send to servers. The recipient opens it, proves they own the wallet, and the note unlocks. If you would rather not share a link, just tell them to visit Eve. Once they set up their keys, your device hands the note key over automatically the next time you open the app.

What does "verify their key" mean?

When someone first unlocks Eve, their wallet signs a public statement naming their encryption keys. Every sender checks that signature in the browser before encrypting. If our directory ever served a swapped key, the check would fail and nothing would be sent.

What can your servers see?

Sender address, recipient address, a timestamp, the padded size of the ciphertext and whether the note has been opened. Never the text. The Protocol page lists every stored field.

What if I lose access to my wallet?

Your Eve keys are derived from your wallet, so whoever controls the wallet controls the inbox. Lose the wallet and the notes are unreadable forever. We cannot reset anything, by design.

Why is it called Eve?

In cryptography papers, Alice and Bob exchange messages while Eve, the eavesdropper, listens in. We built the listener who hears nothing.

Say it
privately.

Open Eve Read the docs