BITCOIN SECURITY HARDWARE DON'T TRUST. VERIFY.
Coinkite: @OPENDIME, 1st &only Bitcoin bearer instrument. @COLDCARDwallet ultra-secure open hardware wallet. @theBLOCKCLOCK @BitcoinBackup est. block 141,000
The number of free subscribers for Coinkite’s Substack over time since it was added to the directory.