Cuvex

Cuvex is an offline encryption and signing device, meaning it has no connection to the internet or any other device, and operates 100% offline.

The Cuvex system offers comprehensive support so that anyone, regardless of their knowledge or experience in the crypto sector, can:

* Create and manage a seed phrase recovery process for any wallet, with high-security redundancy and low cost. It encrypts the seed phrase using AES 256 GCM, creates backups, and stores these cryptograms on NFC cards. A patented system that eliminates the need and risks associated with storing seed phrase backups on paper or steel.

* 3 cards are included. Each card comes in a different color for easy identification. These cards enable multisig setups in a 6 of 6 format, or for example, 3 of 3 or 4 of 4.

* 1 Card for 8K Transactions. The double air-gapped PSBT transactions enabled by your Cuvex device are prepared using the Cuvex smartphone app and transferred to the device via NFC, utilizing a dedicated NFC card. This card, intended exclusively for transactions, allows you to record transactions involving multiple recipients and reuse it for each new transaction.

* 1 Set of Four Colored Dice. With your Cuvex device, you can generate your seed phrase using sovereign and secure entropy—eliminating the need to trust seed phrases generated by software. This is achieved through a manual process involving the roll of these four colored dice and a coin toss. You then input the results into the device, enabling you to construct the most secure seed phrase possible—powered by truly random, high-quality entropy.

• Create a 100% offline BTC wallet, participating in the entropy process of the seed phrase manually and physically, using the "Dice and Coin" standard, which ensures the highest quality seed phrase creation. Software-generated seed phrase creation systems have already made too many errors, with cases where software iteration and recurrence have been proven.

• Manage the wallet via the Cuvex Smartphone App "Watch Only Wallet," with privacy features like "Coin Control," maximizing privacy by design. Whether the user has knowledge or not, address creation and tracking is always tagged, allowing the establishment of observers, reasons, and future value data. It allows creating as many accounts as needed, and among many other processes, it enables freezing UTXOs for proper privacy management. All of this is done in the simplest and easiest way for all types of users.

• Sign transactions with Double AirGap PSBT. This process ensures the physical separation of 100% offline components required to move funds. The Cuvex hardware device does not store any user data. The Cuvex app only manages "Watch Only Wallet" processes and does not require user account creation or the submission of any personal data. The AirGap PSBT function is actually Double AirGap. The app configures the unsigned transaction and records it on an NFC card. This card is read by the Cuvex device for the "1st AirGap," and once verified on the Cuvex device, it requests the NFC card where the wallet's private key is encrypted for the "2nd AirGap." Upon signing the transaction, all data is deleted from the device. The same device can manage unlimited wallets, as it does not store private keys, unlike all other market options.