Overview
Cryptocurrency transactions cannot be rolled back. Once transactions are signed, they are permanently recorded on the blockchain. About a quarter* of issued bitcoin in circulation (now worth xxx billion USD) is believed to have been lost or stolen due to private key mismanagement by their owners or counterparties.
When you own cryptocurrencies, you will have to decide how your private keys should be secured. The common choices available to you are: write it on paper, save it in a digital file, use a hardware wallet or trust online crypto wallets.
But is there an even safer option to store large amounts of cryptocurrency for the long term?
Silver Bullion’s Physical Crypto Storage is our answer to that question. Developed with the Gregersen-Gono Standard, we believe that Physical Crypto Storage is the safest long term crypto storage solution in the world. Just as we have been trusted to securely store physical gold and silver, we now secure the crypto wealth of our clients.

Our
Services
No Digital Storage
No Digital Theft

No Digital Storage
No Digital Theft
The major security breaches at major cryptocurrency exchanges so far have been the result of digital theft. Attackers have been able to surreptitiously access crypto private keys as long as they are stored digitally.
Silver Bullion’s Physical Crypto Storage secures private keys as encrypted QR codes in a non-digital medium. These encrypted QR codes are etched by laser onto durable polycarbonate cards for storage in our vault. With no digital trace of the private keys, there can be no possibility of digital theft.
Card Encryption
No Physical Theft

Card Encryption
No Physical Theft
Card encryption solves the "Anyone who can see it, can steal it" risk typical of paper wallets and the mnemonic phrases of hardware wallets by making the physically etched private keys indecipherable to the eye.
Our customers’ private keys are secured with the strongest industry standard cryptography - AES-256 encryption for the primary customer card and RSA-2048 encryption for the recovery card.
The encryption ensures internal security and makes stealing of the cards itself useless. The encrypted private keys can only be decrypted by our vault’s offline software which requires active multi-party authorization from independent functional groups within Silver Bullion.
Durable Storage Medium
No Private Key Degradation

Durable Storage Medium
No Private Key Degradation
Private keys are encrypted into QR codes that are laser etched with precision onto durable polycarbonate cards. The quality of the laser etching is extremely high as QR codes etched on cards have been tested to be resistant to even forceful scratching (link to scratching video). As the etching is not ink-based, there is no chance for any ink degradation or smear over time.
In addition, the use of polycarbonate cards, a material also used in the manufacture of bullet-resistant panels, ensure that encrypted private keys can be securely stored for long periods of time. Cards are stored in their own miniboxes with uniquely identifiable one-time metal seals. Our storage method solves the possibility of decay with paper wallets and the reliability issues with digital storage on hard disks and flash drives. See long term storage durability.
Private Key Redundancy
No Private Key Loss

Private Key Redundancy
No Private Key Loss
As a precautionary measure in the unlikely event that the primary customer card is damaged or lost, each encrypted private key is also laser etched onto a separate recovery card which is stored in a different secure location away from our vault.
The recovery card’s private key is encrypted with a different encryption(RSA-2048) from the primary customer card(AES-256). As an additional security measure, the decryption process used for the primary customer card cannot be used to decrypt the recovery card.
The decryption process for the recovery card requires access to a key card which is stored in a third party Certis Cisco Safe Deposit Box. The provision of the recovery card ensures that private keys are not lost.
Visual Verification
No Impersonation of Identity
Any changes to critical information on customers’ accounts will require visual verification by our staff. This is done either with the customer present in person at our shop or using video conference to verify the identities of customers requesting any change of critical information.
This ensures that customers’ accounts are secure and prevents potential attackers from changing critical customer information for the purpose of impersonating their identity.
Succession Management
No Wealth Loss Beyond Death
We understand the importance of our customers’ desire to bequeath crypto wealth to their loved ones should something unfortunate happen leading to their demise. We have processes in place, from our years of experience in securing customers’ precious metals, to ensure smooth transition of assets to estate administrators.
Storage Services
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Deposit bitcoin anytime from anywhere
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With Silver Bullion’s Physical Crypto Storage, you will have a new wallet which has its own private key, public key and bitcoin addresses.
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You can add to your bitcoin holdings by sending bitcoin to your personal bitcoin address with Physical Crypto Storage.
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Convert bitcoin to gold, silver or platinum or vice versa
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Integration with Silver Bullion’s online precious metals platform allows you to convert your wealth between bitcoin, precious metals(gold, silver & platinum) and fiat currencies.
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Our platform provides you with transparent rates for bitcoin and precious metals.
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Bitcoin withdrawal
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our withdrawal request will be executed by Silver Bullion during our vault’s operational hours(Mon – Fri, 10am to 6pm, SGT)
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Collateralize bitcoin to get P2P fiat loans (coming soon)
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Insure Optional Third-party insurance (coming soon)