FAQs Archive - Page 3 of 5

Q: Is there a password to access the card?

No, there is no password nor seedphrase. The physical holder of the card is the owner of the keys and can, at anytime, anywhere, unseal a specific keyslot to recover the private key in its own wallet. Read our dedicated article: " Satodime - How to export the private key ".

Q: Can I safely let my friend scan my card?

You can safely let another person scan the Satodime with its smartphone, e.g. to check the balance. If you want to physically give a Satodime to another user, you have to initiate transfer before to release the ownership. Get more information about the ownership by reading: " Satodime - Ownership explained ".

Q: Can somebody steal the content of my Satodime?

No, a Satodime is paired with a specific device on its first use. Only the legitimate owner can perform sensitive operations such as unsealing and revealing a private key.

Q: How do I see the deposit address?

Using the desktop or mobile app, you can clearly see the deposit address for each keyslot. You will be able to copy/past the address or display it as a QR-code.

Q: How many keyslots can I use?

You can use up to 3 keyslots at the same time. Meaning you can store up to 3 different cryptocurrencies using a single Satodime card.

Q: How to check the card authenticity?

Each product includes a cryptographic mechanism that allows you to check whether the card is an authentic one or not. The authentication mechanism is based on a unique digital certificate issued for each card and verified with a trusted PKI. To check the card authenticity, use the desktop or mobile application and go to the settings.

Q: How do I get funds out?

First, you have to unseal the corresponding keyslot to be able to export the private key (in plaintext or WIF format). Import the private key using your favorite software wallet such Electrum or MyEtherWallet. For more information, read this article: " Satodime - How to export my private key "

Q: Is the private key unique and secret?

Yes of course! Address and key generation are done through a co-generated entropy. The user provides the first part while the rest is randomly generated by the chip. It ensures the keys are not pre-generated during manufacturing.

Q: How to check the keys generation randomness?

When the keyslot is unsealed, the entropy used to compute the private key is revealed, allowing to verify that the key was generated randomly as specified.