Sealed sends · Robinhood Chain · z‑addr

Send to someone the chain can't name.

Your keys come from one signature and never leave this tab. Nothing is uploaded anywhere.

How to use $SEALED

Send any coin to someone's normal wallet address. They connect once, and only they can find what you sent.

Connect a wallet (top right, pick yours). It switches you to Robinhood Chain and sets up your sealed inbox automatically. You will sign one message and confirm one small setup transaction, then people can reach you by your normal wallet address.
To send on the Send tab: paste the recipient's wallet address (or their z‑addr), the coin's contract address, and the amount. Leave a tiny ETH gas drip so they can move it later, then Send. If their wallet has never connected here, it will tell you to send them the link first.
To receive on the Inbox tab: hit Scan. Your incoming sealed sends light up with the coin and amount. Nobody else can see they are yours.
Sweep to a fresh wallet the chain does not already know as yours. Sweeping to a wallet tied to you undoes the whole point.

$SEALED hides who receives. It does not hide the sender, the coin, the amount or the time. Keys are derived in this tab from one signature and never leave it. Only sign the $SEALED key message on sealedrh.fun.

Step 1 · Derive your keys

Sign the $SEALED key message once. Your browser derives a viewing key and a spending key from that signature. Neither leaves this tab.

Step 2 · Publish it once

Register your z‑addr to the ERC‑6538 registry so anyone can send to you without ever paying your wallet. One transaction.

Step 3 · Share your link

Give people a link and QR that pays you privately. Opening it prefills your wallet as the recipient. You can also add $SEALED to your wallet.

Token contract address

Recipient wallet address or z‑addr

Paste their normal wallet address and the app finds their sealed inbox automatically (they need to have connected here once). Or paste a st:rh:0x… z-addr directly.

Amount (token)

Gas drip (ETH, optional)

Your inbox

Your viewing key walks the wall of announcements. Most mean nothing to you. Yours light up. Each sealed send tells your inbox which coin it carries, so any token shows up on its own. Sweep to a fresh wallet you control.

Check a specific coin (optional)

Sweep destination (fresh address)

Crypto self-check

Runs the full stealth-address round trip in your browser: derive a one-time address as a sender, then detect it and recover the matching key as the receiver. No wallet or network needed. This is the same math the app uses.