Documentation Overview
On-chain banking you actually own.
A diversified commodity basket held as private property — encrypted account state on Aztec, public auditable reserves on Ethereum, and selective disclosure at your discretion.
What Zeracle Is
Zeracle is a non-custodial protocol for holding and transferring a diversified basket of tokenised commodities as private property. Account state is encrypted: balances and transfers within the protocol are readable only by the account owner and by any third party to whom the account owner grants a viewing key. Reserve backing is public and auditable on Ethereum. Entry and exit points on Ethereum are subject to KYC, AML, and sanctions screening.
The documentation follows the chapter order of the Zeracle whitepaper. Each section on the left corresponds to a chapter of that paper.
Confidential by Default
Account state is encrypted using zero-knowledge circuits on Aztec. Viewing keys give the account owner full control over disclosure.
Commodity Basket
Collateralised by tokenised gold and silver, established decentralised stablecoins, and Bitcoin. Approximately four percent annual volatility.
Pool Ownership
Every depositor is a co-owner of the shared liquidity pool and earns a proportional share of protocol fees with no lock-up.
Protocol Status
Getting Started
Concepts
Confidentiality model, architecture, basket design
Contracts
L1 and L2 contract surfaces and invariants
Features
Private transfers, Instant Pay, and merchant tools
APIs
Query public protocol data
The Deposit Flow
A deposit locks a supported asset in the L1 reserve and mints ZRCL as encrypted account state on Aztec. The deposit endpoint runs KYC, AML, and sanctions screening before ZRCL is minted; once minted, the account balance is encrypted and accessible only to the account owner.
Core Properties
| Property | Description |
|---|---|
| Encrypted account state | Balances and internal transfers are recorded in a form readable only by the account owner. |
| Selective disclosure | Viewing keys allow the account owner to share read-only access with auditors, counterparties, or regulators. |
| Commodity basket | Backing assets are tokenised commodities and established decentralised stablecoins. |
| Immutable economic floor | Fee cap (≤ 1%) and reserve ratio (≥ 95%) are locked in the contract and cannot be altered by governance. |
| Compliant endpoints | Deposits and withdrawals are subject to KYC, AML, and sanctions screening. |
| No custodial authority | No function exists to move reserves to any address outside the normal withdrawal pipeline. |
Architecture at a Glance
┌─────────────────┐
│ Ethereum L1 │ Reserve custody, compliance endpoints, public auditability
└────────┬────────┘
│ Bridge
┌────────▼────────┐
│ Aztec L2 │ Encrypted account state, private transfers, selective disclosure
│ │
│ ┌───────────┐ │
│ │ ZRCL │ │
│ │ notes │ │
│ └───────────┘ │
│ │
│ ┌───────────┐ │
│ │ Fee │ │
│ │ accrual │ │
│ └───────────┘ │
└─────────────────┘