Every message is sealed on your device and settled on the chain. It cannot be seized, delisted, or switched off.
In an eclipse, the umbra is the region where light cannot reach. Your messages live there. In public, on the chain, forever. And not one of them can be read.
No email. No phone number. No recovery desk to social-engineer. Your wallet is your identity and the chain is the only witness.
Connect a wallet. Activation and holdings are read from the chain. Nothing is signed, nothing moves.
One signature derives your keys, X25519 and Ed25519. They exist only on your device, and vanish when you disconnect.
Your public key is registered on-chain so anyone can seal a message to you. From here, you speak from the shadow.
End-to-end encryption happens before the network exists. Keys never leave your device. There is no readable middle, and no one to subpoena.
Every message settles on the chain as a permanent, verifiable receipt. Delivery cannot be denied. History cannot be rewritten.
UMBRA is a web application. It has never been in an app store, so no store can be pressured into removing it.
Every message is padded to an identical size before sealing. A greeting and a confession cast the same shadow.
View tags keep recipient addresses off the chain entirely. Observers see that something was said. Never to whom.
If every relay refuses you, post directly to the chain yourself for about one cent. Censorship becomes arithmetic, and loses.
Write anything. The sealed silhouette never changes, so no observer can tell a greeting from a confession.
Creates your account and your @handle. No renewal. Yours for as long as the chain exists.
Group rooms, paid by the keeper of the room. Members pay nothing. Rent lapses, the chamber seals.
Sending is free, forever. Self-posting to the chain costs about one cent, only if you choose to bypass every relay.
One token gates entry, pays the rent and captures half of everything. Holding more unlocks standing, not yield tricks.
Tier badge
Handles of 6+ characters
Chambers up to 64
Tier badge
Handles of 4+ characters
Chambers up to 256
Tier badge
Handles of 3 characters
Chambers up to 1,024
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Handles of 2 characters
Chambers up to 4,096
The only official $UMBRA contract will be published here and pinned on @UmbraMessenger. Until then, every address you see in the light is a fake.
The address appears here and on the pinned post the moment we launch. Verify every character before you touch it. Nothing arrives early. Nothing arrives by DM.
Connect a wallet at launch, sign once, and step out of the light. Until then, watch for first contact.
REQUEST PASSAGE