Cryptnox supports Cartesi (CTSI) as the CTSI ERC-20 token on Ethereum after you add it once through Add a Token. CTSI is not pre-programmed on the cards. Use the Ethereum contract 0x491604c0FDF08347Dd1fa4Ee062a822A5DD06B5D with a 0x-prefixed 20-byte EVM address, then manage that Ethereum account with the Cryptnox Crypto Hardware Wallet – Dual-Card Set, the free Cryptnox app, WalletConnect, and MetaMask.
CRYPTNOX products are also available worldwide through our official Amazon stores.
Cartesi (CTSI) is held on Cryptnox through Ethereum as an ERC-20 token. It is not a separate pre-programmed asset on the cards, and it does not use a different address format inside the Cryptnox setup. The account you use for CTSI is a 0x-prefixed 20-byte EVM address controlled by the card.
The Cartesi CTSI token page identifies CTSI as the token associated with Cartesi, and the Etherscan CTSI token record lists the Ethereum contract as 0x491604c0FDF08347Dd1fa4Ee062a822A5DD06B5D. That is the contract to enter when adding CTSI manually.
The buying point is straightforward: the Cryptnox card protects the Ethereum account, and CTSI is added to that account as a token. You verify the Ethereum contract once, then use the card-controlled 0x address as the address that holds CTSI.
For CTSI, the sensitive item is the Ethereum private key for the 0x address that holds the ERC-20 token. Cryptnox generates that private key inside the secure element, and the private key never leaves it. Adding the CTSI contract changes how the token is shown and managed; it does not move the Ethereum private key into the phone, MetaMask, or a WalletConnect session.
The card uses an EAL6+-certified chip. That chip-level security model matters for CTSI because the Ethereum account key is created and retained inside the secure element before CTSI is added for display. CTSI remains tied to the Ethereum account controlled by the card, not to the token entry screen itself.
If you are comparing CTSI with other assets in the Cryptnox hardware wallet collection, the CTSI-specific requirement is accurate Ethereum ERC-20 setup with the correct token contract.
CTSI is not pre-programmed on the Cryptnox cards. If Ethereum is not already present in your setup, add Ethereum through Add a Network. Then add CTSI through Add a Token using 0x491604c0FDF08347Dd1fa4Ee062a822A5DD06B5D as the token contract.
The contract address and your receiving address are different values. Your receiving address is the 0x-prefixed Ethereum account controlled by the card. The CTSI contract is the ERC-20 identifier used so the token can be added and shown under that Ethereum account.
This distinction prevents a common setup error: pasting your wallet address where the token contract belongs, or treating the CTSI contract as a receiving address. For CTSI on Cryptnox, the card controls the Ethereum account; the contract identifies the token added to that account.
The Cryptnox Crypto Hardware Wallet – Dual-Card Set ships uninitialised. During setup, the seed is generated inside both secure elements, so the second card is the backup for the same Ethereum account that can later hold CTSI.
That backup model fits CTSI because access to the token follows access to the Ethereum account. The second card is not a different CTSI account, and it is not a separate CTSI receiving address. It is the backup for the same card-controlled Ethereum account route.
For a buyer who wants to hold CTSI without relying on a single card, the Dual-Card Set gives the same Ethereum account a second card from the start of setup.
The Cryptnox card is a contact and NFC smart card. For CTSI, that means you can tap the card to a phone or insert it into a reader when working with the Ethereum account that holds the token. It is a dual-interface card, so CTSI management is not limited to a single card interaction method.
The free Cryptnox app is available on iOS and Android. When you use the app, unlock can use the phone’s biometrics; the card itself has no biometric sensor. The important CTSI detail is that this app unlock flow does not change where the Ethereum private key is held. The private key for the CTSI address remains inside the secure element.
Cryptnox connects to Web3 through WalletConnect and works with MetaMask. For CTSI, that means the card-controlled Ethereum account can be used in those workflows after the CTSI ERC-20 token has been added with the correct contract address.
For operating guidance on the card and app, use the Cryptnox hardware wallet tutorials. The CTSI-specific setup item is the ERC-20 token entry on Ethereum.
CTSI belongs on this wallet through the Ethereum ERC-20 route. The broader Cryptnox coin and blockchain support page helps buyers check wider asset coverage, while CTSI specifically depends on adding the Ethereum token contract 0x491604c0FDF08347Dd1fa4Ee062a822A5DD06B5D.
If you hold other EVM assets, the 0x address format may look familiar, but the setup details still depend on the asset and network. A buyer comparing CTSI with Polygon assets can review the Cryptnox hardware wallet for Polygon page for that separate network route. Ronin has its own asset path as well, covered on the Cryptnox hardware wallet for Ronin page.
CTSI should not be set up like Bitcoin, because Bitcoin does not use an Ethereum ERC-20 contract. If your portfolio includes Bitcoin alongside CTSI, the Cryptnox hardware wallet for Bitcoin page covers that separate model. The CTSI rule is to choose Ethereum, add the CTSI token contract, and use the card-controlled 0x address as the account that holds the token.
A CTSI buyer needs a wallet that protects an Ethereum private key, lets the CTSI ERC-20 token be added accurately, and gives the same Ethereum account a practical backup. Cryptnox matches that CTSI route with a Swiss-engineered smart-card design, secure-element key generation, and a second card created as the backup during initialisation.
The card format is also useful for CTSI because ERC-20 management often happens from a phone, a reader-based setup, WalletConnect, or MetaMask. The Cryptnox card can be tapped to a phone or inserted into a reader, and CTSI remains tied to the Ethereum account controlled by the secure element.
If your main requirement is a Cartesi wallet for the CTSI ERC-20 token, start with the Dual-Card Set, add Ethereum if needed, and enter the CTSI contract under Add a Token. If your portfolio also includes TRON, the Cryptnox hardware wallet for TRON page covers that separate route.
No. CTSI is not pre-programmed on the cards. Add it once as an ERC-20 token on Ethereum. If Ethereum is not already available in your setup, use Add a Network for Ethereum, then use Add a Token with contract 0x491604c0FDF08347Dd1fa4Ee062a822A5DD06B5D.
CTSI on Cryptnox uses the Ethereum route, so the wallet address is a 0x-prefixed 20-byte EVM address. That address is the Ethereum account controlled by the card. The CTSI contract address is a separate value used only when adding the ERC-20 token.
Use the Ethereum ERC-20 contract 0x491604c0FDF08347Dd1fa4Ee062a822A5DD06B5D. Enter it when adding CTSI as a token. Do not use the token contract as your receiving address; your receiving address is the 0x-prefixed Ethereum account controlled by the Cryptnox card.
The Dual-Card Set ships uninitialised. During setup, the seed is generated inside both secure elements, so the second card is the backup for the same Ethereum account that can hold CTSI. Normal setup does not require writing down recovery words.
No. For CTSI, the Ethereum private key for the 0x address is generated inside the secure element and never leaves it. Adding the CTSI token contract, using WalletConnect, or working with MetaMask does not export that private key from the card.
Yes. The free Cryptnox app on iOS and Android connects to Web3 through WalletConnect and works with MetaMask. CTSI still needs to be added as an Ethereum ERC-20 token with the correct contract address before it appears through that route.
No. When you use the app for a CTSI-related Ethereum account, unlock can use the phone’s biometrics through the Cryptnox app. The card itself has no biometric sensor, and the CTSI-holding account is protected by the secure element and the Dual-Card Set backup design.
No, and on this network that is not a limitation. The Cryptnox wallet uses one address per chain. HD address rotation comes from Bitcoin’s UTXO model and the BIP32/BIP44/BIP49/BIP84 derivation scheme; on account-model networks each account is a single fixed address by design, so the question does not apply in the same way. Cryptnox’s single-address-per-chain behaviour matches how these networks work.
At the cryptography layer the card derives keys along BIP32 and SLIP-10 paths, one path per supported chain, though that is not exposed in the app as multi-address management.
Yes. Cryptnox ships worldwide from the official CRYPTNOX store. Orders to Switzerland, the European Union and the United States are dispatched from stock already held in each of those regions, so the parcel does not cross a customs border into your country and there are no import duties to pay. Orders to other destinations are shipped internationally, and any import duties or local taxes are set by the destination country and are the recipient’s responsibility. Current shipping rates are shown at checkout.