Frequently Asked Questions

Here you will find answers to our most frequently asked questions. To learn more about Bitcoin or our product, please check the 'Bitcoin' and 'Self Custody' headings located on our website menu. You can also find more information about our product in the ‘Support’ section on our website. If you have any additional questions that we have not addressed, please do not hesitate to contact us.

What is self-custody?

When you buy or store Bitcoin with custodial exchanges such as Binance, Coinbase or Celsius, they have full control over your assets. This is because they control the private key to your Bitcoin. Until you withdraw your Bitcoin to a self-custody storage solution, you have no control over your private keys, which exposes your assets to severe privacy and security risks. In the case of bankruptcy, hack or confiscation, you can lose everything.

Numbrs is a self-custody solution that gives you complete control over your Bitcoin. A self-custody solution is made for clients that have understood the full potential of Bitcoin and want to take advantage of it. For Numbrs, this is a matter of principle. Bitcoin was created to give people control over their money. Individual sovereignty is the idea that brought us into the Bitcoin space in the first place. This principle is in our DNA. That is why we offer the world’s best offline storage solution for sovereign individuals.

What are the advantages of self-custody?

With Numbrs, your Bitcoin belongs to you and you alone. Your private key is fully encrypted and secured in Switzerland and you are the sole owner of your Bitcoin, granting you complete independence from banks and third-party influences.

Nobody can decrypt your private key - not even Numbrs. This means you are the only person who can access your Bitcoin. Your private key will be safely stored and encrypted in Switzerland. Numbrs has developed the world’s best institutional grade self-custody solution.

Numbrs Self Custody

Bank or Exchange (Custodial)

Freedom. Send and store your Bitcoin without any restrictions.

Limitations. Restrictions on how you can use digital assets held in custody. For example, you are not able to send your Bitcoin to a third-party provider.

Full ownership. Only the Private Key constitutes Bitcoin ownership. With Numbrs, you hold it - no one else.

No Ownership. The custodial company holds your private keys and can access your Bitcoin at any time.

Low risk. You are in full control of your Bitcoin at any time.

Higher risk. Entrusting the custodial company with security and all the decisions relating to your assets.

Decentralized. Owning your private keys means no one can take your Bitcoin away from you. There is no institutional or governmental influence.

Centralized. Custodial services operate under government control. As such, they may be forced to freeze assets or disclose personal information to authorities.

Independence. Numbrs supports you in becoming a sovereign individual. We want our clients to be independent.

Dependence. Custodial services don’t want you to be independent, as they control your assets.

Numbrs Self Custody

Freedom. Send and store your Bitcoin without any restrictions.

Full ownership. Only the Private Key constitutes Bitcoin ownership. With Numbrs, you hold it - no one else.

Low risk. You are in full control of your Bitcoin at any time.

Decentralized. Owning your private keys means no one can take your Bitcoin away from you. There is no institutional or governmental influence.

Independence. Numbrs supports you in becoming a sovereign individual. We want our clients to be independent.

Bank or Exchange (Custodial)

Limitations. Restrictions on how you can use digital assets held in custody. For example, you are not able to send your Bitcoin to a third-party provider.

No Ownership. The custodial company holds your private keys and can access your Bitcoin at any time.

Higher risk. Entrusting the custodial company with security and all the decisions relating to your assets.

Centralized. Custodial services operate under government control. As such, they may be forced to freeze assets or disclose personal information to authorities.

Dependence. Custodial services don’t want you to be independent, as they control your assets.

What is Offline Storage?

Offline Storage means that the server on which your Bitcoin is stored, is completely offline. Offline storage is used to store digital currencies for the long term. By definition, offline storage is a form of storage that is never connected to the internet. It is the equivalent of storing assets in a bank vault.

What are the advantages of Offline Storage?

We have developed the most secure Offline Storage solution in the industry. With the Numbrs Offline Storage solution, your private key is protected against any form of online threat or hack. We are located in the most stable country in the world and utilize cutting-edge technology to ensure the safety and integrity of our clients’ Bitcoin holdings. The secure location of our servers make them impenetrable. Our Offline Storage solution thus ensures our clients’ Bitcoin is safe from online threats.

Once a client decides to store their Bitcoin in our Offline Storage solution, they simply and securely deposit their Bitcoin via the Numbrs web dashboard.

Where is the data center located?

Numbrs’ Offline Storage solution stores its clients’ Bitcoin offline in a state-of-the art, highly-secure data center in Switzerland. Our servers, which are never connected to the internet, are located in the high-security data center of an “ISO 27001”-certified colocation partner in the region of Zug in Switzerland.