Custody
Custody Overview OZ Vault Digital Custody Physical Custody
Security
Post-Quantum Security ProbeChain Verification ProScan Audit

PHYSICAL ASSET CUSTODY

Tangible assets. Digital verification.

Gold bullion, silver, precious metals, and mineral certificates -- each asset registered on ProbeChain, continuously audited by IoT sensors, and verified through the ZK-Rollup Truth Layer.

What We Custody Verification
ASSETS

What we custody

OZ Vault provides institutional-grade physical custody for a range of tangible assets, from precious metals to certified mineral rights.

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Gold Bullion
LBMA-certified gold bricks, bars, and sovereign coins in 99.99% purity. Individually serialized and stored in bank-grade vault facilities across multiple sovereign jurisdictions.
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Silver
Industrial and investment-grade silver bars and coins. LBMA Good Delivery standard. Segregated storage with on-chain registration and verifiable proof of reserves.
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Precious Metals
Platinum, palladium, and other precious metals. Institutional-grade custody with IoT-monitored vault conditions, post-quantum secured records, and real-time audit trails.
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Mineral Certificates
Tokenized mineral rights and mining certificates from verified operations. Copper-gold mining reserves and other proven mineral assets registered on ProbeChain.
VERIFICATION

Every asset, cryptographically verified

Each physical asset in OZ Vault is registered on ProbeChain and continuously verified through IoT sensors and the ZK-Rollup Truth Layer via ProScan V2.0.

1
On-Chain Registration
Each physical asset is assigned a unique on-chain identifier on ProbeChain. Ownership, weight, purity, location, and custody chain are immutably recorded.
2
IoT Sensor Monitoring
ProScan V2.0 IoT sensors continuously monitor vault conditions: weight, temperature, humidity, access logs. Data streamed to the Truth Layer in real time.
3
ZK-Rollup Truth Layer
Zero-knowledge proofs verify that physical assets exist and match on-chain records, without exposing sensitive custody details. Anyone can verify, on-chain.
REDEMPTION

Physical delivery, worldwide

Redeem your custodied assets for physical delivery anywhere in the world. From sovereign gold coins to custom minting, OZ Vault puts tangible wealth in your hands.

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Global Physical Delivery
Redeem OZ tokens or custody certificates for physical delivery of gold, silver, or precious metals to any address worldwide. Insured, tracked, and verified.
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Sovereign Coin Minting
Convert your gold holdings into 99.99% pure 1oz sovereign gold coins. Custom minting available. The ultimate sovereign settlement instrument for the AI economy.
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On-Chain Swap
Prefer digital? Swap custody certificates for OZ stablecoins, sUSD, or sCNH instantly on-chain. Seamless conversion between physical and digital value.
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Verifiable Redemption Trail
Every redemption is recorded on ProbeChain with a complete audit trail. From vault departure to delivery confirmation, every step is immutably logged.

Custody your physical assets
with digital certainty

On-chain registration, IoT verification, and sovereign redemption. The bridge between tangible wealth and digital trust.

Get Started Explore OZ Vault