The Tomb · Robinhood Chain
Wrap it now, open it later.
Write a message of up to 140 characters and choose when it may be opened, from a few minutes to a year away. The tomb book keeps the date: before it, nobody can unwrap the message, not even you. After it, only the wallet that wrapped it can.
Wrap a message
Only a fingerprint goes on chain. The text and its random key stay in this browser until you unwrap; lose the key and the message stays wrapped for good.
Everything on Robinhood Chain is public and permanent. Do not wrap personal data, secrets or anything you would not want read later. Gas only; the token is not needed.
Your wraps
Connect a wallet to see the messages it wrapped.
The wall
Reading… · tomb bookNo wraps yet. Be the first name on the wall.
What goes on chain
Sealed wraps store a fingerprint (keccak-256 of a random 32-byte key plus your text), the date and your address. The text itself appears only when you unwrap. Open wraps publish the text at once. All of it is public and cannot be deleted.
What the tomb cannot do
It is not encryption storage: a short, guessable sealed text could be found by trying fingerprints. It cannot recover a lost key. It does not judge words; this site checks a short list before wrapping, but other apps can call the contract directly.