October 2015
Beginner to intermediate
236 pages
5h 16m
English
Content preview from Learning BitcoinBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Private keys and wallets
While Bitcoin addresses appear to be a string of random numbers, they are actually computed from a private key. Private keys are long strings of random characters generated by your Bitcoin wallet software. There can only be one address generated from your private key, thus your private key is both the seed and password to your Bitcoin address.
Note
IMPORTANT
The private keys are normally hidden by your Bitcoin wallet, but they can be occasionally printed on paper as a physical backup. They should never be shared publicly as they control access to your funds.
Bitcoin private keys generally contain 51 characters and start with a 5, such as in the following example:
5Jd54v5mVLvyRsjDGTFbTZFGvwLosYKayRosbLYMxZFBLfEpCS7
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