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We have pre-created thousands of Bitcoin addresses and topped them up with random amounts. These ready-made addresses are called "Fish." When you make a deposit, you don't send coins to a mixer in the classical sense. Instead, you get access to a pool of already existing "Fish" that were created long before your deposit. This completely breaks the link between your original coins and those you receive on the way out. Example: You deposited 0.1 BTC. You can choose any set of "Fish" from the pool, for example: 0.089 BTC 0.001 BTC 0.003 BTC The remainder (0.007 BTC) is withdrawn to a separate clean address of your choice.

A guarantee letter (or Guarantee Letter) is a cryptographically signed message that the service issues to you at the beginning of a session. It confirms that: The service acknowledges receipt of your deposit. The service undertakes to issue you the selected "Fish" and the remainder to the specified addresses. The letter contains a unique session identifier and the archive password.

Every guarantee letter is signed with our PGP key. Download our public key from bitcoinshark.cc/assets/pgp-public-key.asc, import it with `gpg --import pgp-public-key.asc`, save the full letter text to a file, and run `gpg --verify letter.txt`. A genuine letter shows "Good signature from BitcoinShark Support".

After selecting FISH, you need to enter this password to see the seeds.

You can wait for the next batch or provide a withdrawal address — we will send your funds directly as soon as one frees up.

Yes — exchanges are accepted between 0.5 BTC and 5 BTC per request, in line with the current batch sizes.

Reach us anytime via Jabber, TOX, or our Tor mirror — all contact details are listed in the footer below.

Yes, we offer a "Withdraw all coins to a single address" feature. This is convenient if you want to gather all received "Fish" into a single balance. However, keep in mind that combining coins reduces the level of anonymity. Use this feature only if confidentiality is not critical

Because: The "Fish" addresses were created and funded long before your deposit. They have no temporal or on-chain connection to your original coins. Blockchain analysts cannot prove that you are the owner of these "Fish." This multiplies your privacy and completely breaks any chains of connection between what you sent and what you received.

Yes, the service fee is selectable and ranges from 0.5% to 5% of the deposit amount. You can also additionally support the project through a voluntary donation system.

The minimum deposit is 0.001 BTC. The maximum deposit is unlimited, but the amount must not exceed the available "Fish" pool at the time of the operation.

Yes, because: We do not store transaction logs. All "Fish" are created in advance, with no link to users. We do not require registration, email, or personal data. All work happens through a secure connection (Tor is recommended).

Because "Fish" are living, independent addresses that already exist in the blockchain. You simply "catch" them from our pool. The more "Fish" you use, the more tangled your trail becomes for analysts. 🐟 Remember: good anonymity is not mixing, but complete replacement of traces.