Satodime — Why and how to use your bearer crypto card

Satodime — The bearer crypto card.

Table of content

  1. Introduction
  2. Usecases
  3. Prerequisites
  4. Create a new vault == SEAL
  5. Store your cryptocurrency == LOAD
  6. Check the balance and the state == VERIFY
  7. Retrieve the private key == UNSEAL
  8. Wipe out the vault == RESET
  9. Conclusion

Introduction

Usecases

  • Buy goods
Satodime allows you to buy goods.
Satodime allows you to buy goods physically.
  • Exchange art (NFTs)
Satodime allows you to exchange NFT physically.
  • Cold storage for crypto-currencies
Stacking sats with your Satodime.
Stacking sats with your Satodime.

Prerequisites

  1. Grab a Satodime bearer crypto card 💳 on the official Satochip webshop.
  2. Optionally: grab a chip card reader to be able to setup your Satodime on your computer.
  3. Download and install the Satodime-Tool, the all-in-one application that will allow you to create and manage wallets/vaults within your card:

Create a new vault = SEAL

  • Bitcoin ($BTC)
  • Litecoin ($LTC)
  • Bitcoin Cash ($BCH)
  • Ethereum ($ETH)
  • The ERC-20 and ERC-721 tokens (NFT).
Satodime-Tool — Interface.
Satodime-Tool — Interface.
Seal key! will open a new menu.
Seal key! will open a new menu.
Satodime’s entropy is co-generated by the user and the chip card.
Satodime’s entropy is co-generated by the user and the chip card.
Specify the asset and coin type.
Specify the asset and coin type.
Satodime — Seal a new vault. A new wallet will be generated.
Seal a new vault. A new wallet will be generated.

Store your cryptocurrency == LOAD

Satodime — The vault #0 aka “Key #0” is in a “Sealed” mode.
The vault #0 aka “Key #0” is in a “Sealed” mode.
  • The status of the keyslot : ‘Sealed’ => ‘Unsealed’ => ‘Uninitialized’;
  • The public key (PubKey) of the wallet;
  • The asset type : ‘Coin’, ‘Token’, ‘ERC20’, ‘NFT’, ‘ERC721’;
  • The blockchain used for such wallet;
  • And the addresses.
Satodime — Details tab for keyslot #0
Details tab for keyslot #0
Satodime — QR code of the freshly generated Segwit Bitcoin address
QR code of the freshly generated Segwit Bitcoin address

Check the balance and the state == VERIFY

  • Uninitialized: the keypair has not been generated yet;
  • Sealed: the keypair has been generated securely inside the chip;
  • Unsealed: the private key has been revealed.
Satodime — An example of the different Keyslot status.
An example of the different keyslot status.
Green == SAFE — The private key is not known by anybody.
Orange == UNSAFE — The private key is known by someone.

Retrieve the private key == UNSEAL

Unsealing a keyslot will ask the secure chip to expose the private key.
Satodime — Warning message that explains the private key exposure.
Warning message that explains the private key exposure.
An unsealed Bitcoin vault.
An unsealed Bitcoin vault.
Details about an unsealed keyslot.
Details about an unsealed keyslot.

Wipe out the vault == RESET

Press the reset key button to wipe out the wallet.
  • The public key (pubkey) and the wallet address
  • The private key
Warning message about the keyslot reset process.
Satodime main menu.
Satodime main menu.

Conclusion

  • Multi-crypto: your Satodime card supports many cryptocurrencies. You can generate private keys for Bitcoin, Litecoin, Bitcoin Cash, Ethereum and the ERC20 tokens. The card supports ERC20 and ERC721 based tokens and many more to come… You can even store your favorite #NFT.
  • Multi-vault: you can generate up to 3 different vaults. It allows you to manage multiple private keys at once. For example, you can safely store some Bitcoin, some Ethereum and your favorite shitcoin in one single Satodime bearer crypto card. The Satodime supports the MainNet and the TestNet coins and tokens.
  • Secure: your Satodime is not only a storage device. It embbeds an EAL6+ certified smart chip that acts as a secure element (SE) to handle your keys (public and private) with care. Thanks to cryptography, your privates keys and sensitive information are safely isolated within the secure chip and never leave it.
  • Trustless: private keys are stritcly sealed within the secure chip. You don’t know the keys until you redeem the key slot. The color of the key slot turns from green to red when it’s unsealed. Just like a fiat bill, it has never been so easy to safely transfer cryptocurrencies hand-to-hand.
  • Reusable: no need to break the device to use it again. You can redeem the private key and reset the vault again and again.
  • Customizable: just like the Satochip hardware wallet, your Satodime card can be customized to fit your need. You can, for example, print your favorite #NFT on your Satodime and load it. Amazing!

More information about Satodime

--

--

--

Open source and affordable hardware wallet on smart card. More information on https://satochip.io — Follow us on Twitter : @SatochipWallet

Love podcasts or audiobooks? Learn on the go with our new app.

Recommended from Medium

Trusted Cars Flex Changing Car Ownership Forever

AMA STP Network x cryptocaliburchat

CoinTiger Pool Adds KGO

Has Terra LUNA Alt Coin Season Arrived!?

GOAT! 🤣 #cryptocurrency #cryptotrader #BuyLowSellHigh #bitcoin #ovato

316VC PRESENTS THE MIC

Next Generation Crypto Companies

GAME Credits update — May 2020

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Satochip

Satochip

Open source and affordable hardware wallet on smart card. More information on https://satochip.io — Follow us on Twitter : @SatochipWallet

More from Medium

5 steps to install plug-in MetaMask

Spook Inu — The community grows as we edge closer to our launch.

The Crypto Community Welcomes CapitalVerse by ProtoBank Protocol Investements & Associates

The Astroverse Club January Update