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What is a private key?

A private key is a secret number that allows the bitcoins to be spent. Every Bitcoin address has a matching private key. The private key is mathematically related to the Bitcoin address, and is designed so that the Bitcoin address can be calculated from the private key. Importantly, the private key can not be calculated from the Bitcoin address.

Because the private key is the "pin number" that allows to spend the bitcoins, it is important to keep it secure and secret!

Private keys can be kept on computer files, but they are also short enough to be written down or printed out.

An example of a private key is: 5Kb8kLf9zgWQnogidDA76MzPL6TsZZY36hWXMssSzNydYXYB9KF

Any Bitcoins sent to the address 1CC3X2gu58d6wXUWMffpuzN9JAfTUWu4Kj can be spent by anybody who knows the private key 5Kb8kLf9zgWQnogidDA76MzPL6TsZZY36hWXMssSzNydYXYB9KF.

About Us

The 5C-Basic GmbH & Co. KG was founded in 2010 with headquarters in Leipzig. We have been fascinated by the Bitcoin since 2012 and in the beginning of 2013 we implemented the project Bit-Card.

legal information

Feel free to contact us if you have any problems.

Company 5C-Basic GmbH & Co. KG
Address Stauffacherweg 16
04129 Leipzig, Germany
Email support@bit-card.com
Register Court AG Leipzig, HRB 26544