Who can benefit from Chainlock?

The Chainlock card is the ideal solution for sellers and traders of cryptocurrencies and values. It is also perfectly matched to the requirements of their customers, who need to know their investments are stored in a highly secure place both in the medium and long run. This is true for a small cryptocurrency gift in the private sphere as much as for large amounts in an investment portfolio.

Benefits of using the Chainlock card as a secure wallet:

  • Key generation

    Key generation in the high-security zone of the Austrian State Printing House (OeSD): the generation procedure, for which a patent application has been filed, ensures that nobody can view the key pair – not even OeSD staff.

  • Effective counterfeiting protection

    the security seal ensures that the private key cannot be secretly read; the signature procedure, for which a patent application has been filed, protects against an exchange of the address.

  • Secure and convenient hardware

    the card is robust, handy, credit-card-sized as well as water- and heat-resistant.

  • Secure storage

    at any secure place (private safe or safe deposit box in a bank).

  • Simple use

    an IT background is not necessary

  • 100 % offline

    unauthorised access to the private key via internet, WLAN, NFC, CryptoLocker, private-key scammers, etc. can be ruled out entirely.

  • 100 % independence

    coins created through forks benefit the private key’s owner.

  • 100 % user autonomy

    the user is the sole person who can access the private key.

Application fields

With this cold wallet, cryptocurrencies (Bitcoin, Ethereum, etc.) and digital values can be:

  • securely stored

  • securely gifted

  • securely bequeathed

  • securely transferred

Physical Security Check


Card Wallet ETH

Card Wallet ethereum
Buy at our partner coinfinity
Buy and sell Bitcoin in Vienna.

Buy at our partner bitbuy.at

Where can I buy a Chainlock card?

The Chainlock Card is available in the shop of our cooperation partner coinfinity.
Click here for more informations.

Interested in becoming a business partner?

Contact: Sebastian Zehetbauer 
We look forward to hearing from you!


What is Chainlock?


The future of safe storage

Our cold storage Chainlock is an innovative product for storing digital values. As opposed to online storage solutions, this cold wallet cannot be manipulated by cybercriminals. The process for creating a private key was developed in cooperation with Coinfinity based on its secure entropy technology. This private key ranks among the most secure in the world:

  • The key pair is generated in a high-quality procedure, for which a patent application has been filed: not a single person can ever see this private key.
  • Key verification is carried out by a machine without human input.
  • The cold wallet’s private key is stored offline and at no point available online.
  • It is known to the user only.
  • The high-quality materials used for the offline wallet minimise security risks.


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How does Chainlock work?

Charging the Chainlock card:
  • Scan an address as a QR code using the digital wallet of your choice. Alternatively, you can manually enter data or directly send coins to the card from the wallet.
  • Charge any amount of a cryptocurrency to the Chainlock card – you can also recharge the card several times.

You can check the amount of the cryptocurrency using a block explorer (e.g. blockchain.info or blockexplorer.com) or the Chainlock app.

Discharging the Chainlock card:
  • Expose the private key beneath the security seal / protective sticker.
  • Scan the private key as a QR code (or, alternatively, enter it manually) using your preferred digital wallet.
  • Load the cryptocurrency (e.g. Bitcoin, Ethereum) from the Chainlock card into your digital wallet.


Once you have removed the security seal so that the private key is visible, you can hide it again using the protective sticker that is provided with the private key. The protective sticker is sufficient to make sure that the human eye cannot decipher the key information.

The private key should only be read by the Chainlock card’s user in safe surroundings. The private key provides access to all cryptocurrency amounts linked to the card.

If the security seal has been removed, this is made apparent by a VOID effect.

A wallet is a storage solution for cryptocurrencies (Bitcoin, Ethereum, etc.) and digital values. Our cold storage is a highly secure offline storage solution.
The safest way to store Bitcoins is to store them offline using a card. This card must be stored in a safe place, for instance in a private safe or safe deposit box in a bank.
The card is produced in the high-security zone of the Austrian State Printing House within a system that is isolated from the internet. The private key is hidden under a manipulation-proof seal while still in the production machine and then immediately erased. Nobody sees the key before the card is used. Only the user can see the private key when he or she first removes the seal.

You can buy a card in the shop of our partner coinfinity

All industries that require secure storage and documentation of values. This covers a broad range of fields, from cryptocurrencies to luxury goods (jewellery, watches) and art to company shares.

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