FAQ

What is this site for?

This site is created to list all possible Bitcoin private keys and addresses.

What is Bitcoin?

Bitcoin is a decentralized digital crypto-currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: transaction management and money issuance are carried out collectively by the network.

What is a private key?

A private key in the context of Bitcoin is a secret number that allows bitcoins to be spent. Because the private key is the "ticket" that allows someone to spend bitcoins, it is important that these are kept secure. Private keys can be kept on computer files, but in some cases are also short enough that they can be printed on paper.

What is WIF?

WIF is an abbreviation of Wallet Import Format (also known as Wallet Export Format) and is a way of encoding a private key to make it shorter and easier to copy.

Every single private key can be represented as two different WIF private keys: compressed and uncompressed. A compressed WIF private key starts with "K" or "L" and corresponds to a compressed public key/address. An uncompressed WIF key starts with "5" and corresponds to an uncompressed public key/address.

On our site, we list both, compressed and uncompressed WIF keys/addresses.

What is the range of private keys?

All Bitcoin private keys are a number between 1 and 115 792 089 237 316 195 423 570 985 008 687 907 852 837 564 279 074 904 382 605 163 141 518 161 494 337 or in hexadecimal from 0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0001 to 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140.

The range of valid private keys is governed by the secp256k1 ECDSA standard used by Bitcoin.

Do you store all the private keys?

No. Since there are a huge number of private keys (nearly 1077) we just generate a range of these keys on the fly from a page number in the URL.

What is a brainwallet?

A brainwallet is the concept of storing Bitcoins in one's own mind by memorizing a recovery passphrase. An early old-style brainwallet was created by memorization of a passphrase and converting it to a private key with a hashing or key derivation algorithm (example: SHA-256). This method was found to be very insecure and should not be used because humans are not a good source of entropy.

How many are there Bitcoin addresses?

While Bitcoin address is just BASE-58 encoding of RIPEMD-160 hash of your public key, there are 2160 (nearly 1048) addresses.

How many are there Bitcoin addresses with balance?

There are about 22M addresses with non-zero balance as of September 23, 2018. However, there are only 730K addresses with balance over 1 BTC.

Where I can find my wallet.dat file?

By default wallet.dat file is located here:

Windows: C:\Users\YourUserName\Appdata\Roaming\Bitcoin
Mac: ~/Library/Application Support/Bitcoin
Linux: ~/.bitcoin