privacy layer · solana

Your wallet is public.
Encrypt the view.

SHROUD shields balances and payments, then lets you show an auditor exactly what you choose. Nothing more.

shroud@solana:~
01 exposure

What the chain shows anyone.

Every payment, salary and habit sits in public view. Flip the switch to see the same feed with SHROUD on. Example data only.

PUBLICSHROUDED
02 three_views

Same wallet. Three audiences.

Demo data. Each audience gets a different window onto the same account.

The public

block explorer
  • Address7xQ…9fK2
  • Balancehidden
  • Counterpartieshidden
  • Amountshidden

You

full spend authority
  • Address7xQ…9fK2
  • Balance42.80 SOL
  • Counterpartiesall
  • Amountsall

Your auditor

scoped view key
  • Address7xQ…9fK2
  • Balancescoped
  • Counterpartiesscoped
  • Amountsscoped
03 demo

Shield. Send. Unshield.

A simulation running in your browser. No SOL moves and no contract exists yet.

PUBLIC10.00
SHIELDED0.00
// simulated session. nothing is on-chain.
04 how

Three moves. Proof, not trust.

This is the intended design of the product once it launches.

STEP 01

Shield

Deposit SOL or an SPL token into the pool. Your balance becomes a private note.

STEP 02

Prove

A zero-knowledge proof shows inputs equal outputs without revealing who or how much.

STEP 03

Unshield

Withdraw to any address. A relayer can pay gas so your fee payer does not link back to you.

05 disclosure

Private by default. Provable on demand.

View keys are read-only. Scope one by token and time range, then give it to a person who needs to check your books. Demo only.

No key yet.

Sharing a key cannot be undone. Anyone holding it can see its scope forever.

AUDITOR VIEW
06 limits

What privacy cannot do.

Be skeptical of any privacy claim without limits. Ours:

Small crowds leak

A pool with few users hides you poorly. Privacy grows with the number of participants.

Timing gives hints

Shielding and unshielding the same amount minutes apart is easy to link. Wait and vary amounts.

Lose the key, lose access

There is no reset. Back up your spending key and treat view keys like documents.

Not audited yet

This is a preview. No contract is deployed. Do not treat it as production software.

07 faq

Questions.

Is this live?

No. It is a pre-launch preview. The demo is a simulation and moves no funds.

Can the team see my balance?

The design is that nobody can, including the team. Only holders of a view key you create can see its scope.

What do relayers know?

A relayer submits your transaction and pays gas. It sees the request but not your wallet balance.

Is it legal to use?

Rules differ by country. Selective disclosure exists so you can meet reporting duties. Check your local law.

Which wallets connect?

Phantom, Solflare and Backpack. Only your public address is read.

Close the book.

Try the shielded wallet demo. Nothing is real yet, and that is on purpose.