http://fqborhzh62bgdwbir7lad47jgupvl7wajsjbo56kbm75vthdtoclxiyd.onion/aboutpk
Because the private key is the "ticket" that allows someone to spend bitcoins, it is important that these are kept secret and safe. Private keys can be kept on computer files, but are also often written on paper. The second way to purchase is email!
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