White label crypto wallet

This leadership explains how to configure the coldcard vehicle sparrow, to recreate a safe solution for storing bitcoins. If you have not read the leadership of a quick start, this is a great place to find out how to install and get acquainted with sparrow. When you followed the leadership of a quick start, you will already have a run on sparrow with a software wallet. This is a good place in order to start studying by sending and obtaining bitcoins transactions, and such a moment is the best way to carry small amounts. If your balance will grow, however (to such an extent that you agree to take care of its loss), then it’s time to think about the purchase of a hardware wallet.

Hardware wallets provide something that software wallets cannot - our hackers cannot - they are simple devices that take care of your individual keys and transactions, however, the rest of them play a very limited connection and practicality . This is soundly, due to the fact that this means that it is very difficult to hack them! In the connected world of viral infection and other malicious programs, hardware wallets are a significant improvement in protecting your bitcoin. Buy. Coldcard, however, is similar to sparrow Wallet security features in the sense that it is: 

- Only bitcoin (no sites, do not go to another place of coins) - transparently displays the details of the future wallet and transactions - contains a good set of functions that are associated with anonymity and safety 

It should be noted that other methods are also reasonable, and in fact it is preferable when setting up a multisig wallet for mining several suppliers. /> Application, and receipt 

The cost of a cold card can be ordered exclusively in the coincite store, and not third parties. Ideally, send it to the address that does not remain your home, but, do not allow this to be the reason not to buy it! However, you will need to pay money for this in bitcoins. This is a good idea to buy a microsd card - we will use one later. Personally, you also have to have a microsd card reader for your computer. 

As soon as you find coldcard, inspect the bag for the object of fake. This photo shows a new bag on the left, and the open bag on the right: 

The note on the bag has a number (hidden in the photographs above). This led will be used later - as a further check. If you are sure that your bag has not risen faked, you can get it and inspect the cold card. This should look as follows: 

If you are sure that the package has not been forged, you can continue to configure holdcard. 

Up your cold card 

To nourish your cold card, you will need to connect it to a usb cable (microusb type). The management leads the client through the installation in the air, which means that the viewer does not connect coldcard to your personal computer! It makes it even safer. 

It is the most correct to use a banal battery, since more experienced do not remain for low -power devices. Coincite himself offers coldpower adapter, which uses a standard 9-volt battery. After all, when you do not have any of them, use a usb -digit device connected to the wall outlet. Do not connect it to the designed computer settings. Confirm that such a match. Then you will need to agree with the rules of sale. Then you should choose a pin code. 

Similar to the telephone code, this pin code is the right protection from others using the printer to sign the operations and the theft of your bitcoin. On the cold map, the pin includes several parts, for example, 1234-5678. You need to find a pin, which others will not be able to easily guess, and what useful thing you can remember. If you forget your pin code, you cannot secure yourself quick access to the cold card performed. Coldcard recommends using the four plus four numbers in your pin code, as in the example above. Such words will be unique to any cold deck and will not always allow someone to replace your cold card with a fake copy and study your pin code. In the case when in the future, anti-ping words do not coincide with those that are displayed now do not contact the second four digits of your pin code. As soon as you can confirm the anti-fingering word and enter the second four digits, you will be asked to confirm the pin code, introducing it again. > Now you should present the following screen: 

For such a leadership, we constantly configure a new wallet, so choose a new wallet. Then the cold card will generate a unique, long random number, which is a seed for its wallet.Then this led will be encoded this random number in a set of 24 words that should be displayed today. To be sure that your seed can be created only once. To do this, get normal 6-pipe bones. Later, click 4 on a cold map. Cover the bones and click the number 1-6 on the cold map that occurs on the bone throw. Do this 100 years, and film amateurs can be sure that your seed is personal, and yours and one! You undertake to do this carefully only on paper (or what is additional better, on a metal plate). Then you will make sure that you did it reasonably. If the player does not understand what you are doing, you are never obliged to introduce these words anywhere, in addition to another hardware wallet. Keep the words in an optimally safe place, about which you can speculate and reflect on how to make a second copy for the second zone in the fire version, etc. D. 

Congratulations! Your cold card is now ready. 

Coldcard import into a sparrow 

Although your cold card is very suitable for guaranteeing the secrecy of your seed, it is not able to create a transaction or transaction to display its balance. You need a sparrow to improve. The import of your cold card in a sparrow means the import of materials about an open manner in a sparrow, so that it can display your balance and addresses, and, among other things, send and receive a transfer to another wallet. The scope of this leadership, but knows how one of the players who have your public key can see your wallet transactions, but should not steal your money. Coldcard will never export your personal key. (Recall that you can also do this in an impossible way by connecting your cold card to your computer, and after choosing a “connected hardware wallet in a sparrow). Insert the microsd card into the slot in the upper left corner from the cold map until it clicks on the terrain. Select advanced> microsd card> export wallet> geneeric json from a price list. Enter 0 for account numbers. This will write a file with the name coldcard-export.Json on the sd card. From now on, you can throw away the coldcard diabetes, first pressing the places in carefully, so that it jumps out. Insert the sd card into the microsd card reader on any pc. > accordingly, you will see the screen "settings of the sparrow wallet." You can leave each column on default values and select a “hardware wallet with an air agent” of 4 buttons below. (We remind you that you do not set up in the atmosphere and connected your cold card to your personal computer, you must choose a “connected hardware wallet.” For different hardware wallets. Look for the coldcard option and find the “import file ...” (Note, squeeze the link “detailed data”, displays instructions for making a file on coldcard, what we did earlier.) 

Select a coldcard-export.Json video from the sd card. Sparrow will read the file and import advertising about the open -man coldcard: 

Now you get a chance to click "apply" below. You must find a reliable password for separating the wallet file - even if coldcard protects your funds from stolen, the password on the wallet sparrow protects yours confidentiality. If the sparrow is connected, it turns out to order all transactions, however, since this is a new wallet, it does not happen. 

Congratulations! Settings are completed, and your wallet is able to take bitcoin. The address will be displayed in the column of the address. The first address of admission in your wallet: 

You can similarly confirm this address on coldcard using the exceller explorer function. In the general coldcard menu, select the “address researcher”, press 4, and then scroll down to the record that corresponds to the display of the address “sparrow”. Select it to check the full address. After the exchange sent funds, you will see a new transaction on the transaction display (upper button on the blue menu) in sparrows. As a rule, you will need to wait for at least one confirmation of this transaction (within ten-30 minutes), before you want to send bitcoin from this wallet. However, if you send yourself, the viewer can immediately send a transaction. To this end, go to the departure monitor and enter the destination, label and size address: 

Take into account that you can use the address from this wallet (send yourself) using the fall-arrow on the right in the right address field. Then you have the opportunity to click "create a transaction." This will open an editor of operations with your new transaction, here you have the opportunity to inspect the entrances and outputs. Now we will practice signing with coldcard. 

Click the large blue button "complete the transaction for signing." From this moment, you can see the field of signatures: 

Since we use a cold card at the top, we, in turn, will be signed through the file on the diabetes.Make sure that the sd card is read on the gadget and click the "save psbt" button. You will save the .Psbt file on the cd card, which is a file type that contains a partially signed bitcoin transaction. Throw the sd card from the laptop and insert it into the cold card. Porn that you just saved. Coldcard will read content - and offer you the details of the transaction. It is important to have complete confidence that these details are true. Make sure that the delivery point and the amount correspond. You are in your power to dwell on the outputs on the left in the sparrow transaction editor to view these subtleties. 

, As soon as you will be satisfied, ask the cold card to sign the transaction. It will save the signed psbt file on a diagram in the file name similar to first send-signed.Psbt. 

Now throw the cd card from the coldcard and is re-included on the laptop. Press the psbt and download the signed psbt file. The progress bar will be filled to indicate that the transaction is now signed! Your transaction will be transmitted to bitcoin tente -and i hope it will soon be confirmed in the blockchain. 

Congratulations! Now the buyer has a safe idea to place bitcoins, and you can send and receive from it. Think about the topic to update your coldcard to the last firmware to take advantage of its diverse functions. Keep it at a reliable point and it will make sure that you do not know you don’t have to worry about the loss of funds! Now it is possible to add accounting registration to the existing wallet, which actually creates a second bitcoin -chosel on the platform of the same seed, but another way of receiving. The second account allows the owner to share funds (for example, kyc and not kyc funds), which is guaranteed to ensure that utxo is not constrained with various sources at costs. You can always use accounts to separate devices designed for various tasks. Everyone will manage to choose up to 8 different accounts - at the moment, select account no. 1. The account of the wallet, in which case you recently set up, will be marked with a deposit, and the new account of the wallet - account no. 1. For this, select advanced> microsd card > export wallet> geneer json from the pricecard price, and this time enter no. 1 for the account number. Click the "hardware wallet from the air" of four buttons into sparrows and upload a file just saved to the sd card. After that, it is possible to click “apply”, so your second account is ready for use! 

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