Don't trust us. Check.

Sanctum holds everyone's funds in one shared wallet. So every five minutes it publishes a fingerprint of every balance it owes, and every hour it writes that onto Solana. Anyone can check the wallet holds enough. You can check your own balance is counted, without seeing anyone else's.

Owed to users + fees

… SOL

Held by Sanctum

… SOL

Coverage

100%

Accounts in the tree

…

Check your balance

Your browser downloads your proof, rebuilds the fingerprint from it, and compares it to the published one. Each step adds up balances, so nothing can be left out or counted negative.

Check the wallet

The shared wallet is public. Its SOL and every coin it holds are on chain for anyone to count.

Written on Solana

every hour

The first on-chain fingerprint lands within the hour.

How it works

Every account's balance becomes a leaf: a hash of the account, a secret per-snapshot code and its balances.
Your balance is split into four random pieces, mixed with everyone's, so a proof never shows anyone's full balance. Pieces pair up into branches; each branch hashes both children and each child's balance sum, up to one root.
The root fixes the total owed. Hiding a debt would change the root; a negative balance is refused by the checker.
Every journal entry extends a hash chain, so history can't be rewritten without the published head changing.
Every hour the root and journal head are written to Solana in a memo from the shared wallet.