6/12/2023 0 Comments Bitcoin core wallet addressSneakernet for the win! If you want to reach the next level paranoia, you can use different cards for the data coming into versus out of the Coldcard, and/or use cards a single time only. Using our industrial grade MicroSD Cards or any standard MicroSD card, for each of the above steps that require data to come in and out. Advanced users can even setup a multisig wallet between multiple cosigners, entirely on-device, and air gapped.Sign transactions for spending your Bitcoin, using PSBT files (BIP174) from any standards-compliant wallet.Backup of seed and settings, which saves an encrypted 7z file. ![]()
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