monero-site/_i18n/zh-tw/resources/user-guides/securely_purchase.md

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Simplify versioning system for user guides This new approach doesn't require version numbers and make easier for contributors to understand the status of the document. There are only 3 states: - Outdated: The page is outdated and might not work as expected - Untranslated: The page needs to be translated - Translation outdated: The page is translated, but the original (English) document has been updated To mark a guide as outdated, we change the boolean of the front matter entry 'outdated' in /resources/user-guides/GUIDE. If 'False', the guide is updated. If 'True' all versions of the guide (English included) will show a warning at the bottom of the page. The other 2 states are related to the status of the translated pages and we control them from the language-specific user guides: /_i18n/LANG/resources/user-guides/GUIDE. At the top of the page a snippet will include 2 parameters: - translated: "yes" if the page is translated, "no" if it's not. - translationOutdated: "yes" if the translation is outdated, "no" if it's not This new system aims to be simpler than the precedent, avoiding to compare versioning numbers and using a higher level system instead (yes, no, True, False). I also removed the middle way status 'only minor changes', because if there are only minor changes that don't affect the usability of the guide, we don't need to point it out. The old system was complex and people didn't use it. These changes will hopefully make things easier for translators and other contributors.
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{% include disclaimer.html translated="no" translationOutdated="no" %}
## Step 1: Acquire Monero
There are multiple ways to acquire Monero: You can mine it, you can exchange services or goods for it, or you can convert other cryptocurrencies and fiat money to XMR. If you choose the latter, the most convenient way to do it is to use an exchange.
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There are multiple exchanges supporting Monero. Some are centralized, which usually have great liquidity and fast service, but requires you to provide personal information before starting the trade (KYC). Some are decentralized and don't require any identification, but usually have less volume and can be harder to use. There are also services that allow people to meet and perform a trade without third parties involved.
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An incomplete list of Exchanges that support Monero is on our [Merchants page]({{ site.baseurl }}/community/merchants/#exchanges).
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## Step 2: Download and create a Paper Wallet on a secure and air-gapped computer.
Download the @paper-wallet generator at: [moneroaddress.org](https://moneroaddress.org) and copy it to a USB stick (Direct link: [https://github.com/moneromooo-monero/monero-wallet-generator/archive/master.zip](https://github.com/moneromooo-monero/monero-wallet-generator/archive/master.zip)).
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Unzip and open the paper wallet generator (monero-wallet-generator.html) into a web browser on an air-gapped (@airgap) computer that hasn't been used before, or has had a clean installation of the operative system.
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Your paper wallet will have four important items:
- Monero Public @Address: The public address is used to receive funds to the @wallet. You give this to anyone who will be sending funds to your wallet.
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- Monero @Mnemonic-Seed: The mnemonic seed is a method of storing the entire wallet that is easily recognizable to humans. This is all you need to restore your wallet at a later date.
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- Monero @Spend-Key: The private spend key is used to send funds from the wallet.
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- Monero @View-Key: The private view key is to view transactions entering the wallet. Commonly this is used to setup a view-only wallet which can see incoming transactions live on the blockchain as they are sent to a cold storage wallet.
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At this point you have many options. You can print the wallet on paper, save it as a PDF or text on a USB stick, burn it to CD/DVD, etc. Most likely you will want at least two or three copies, stored securely in different locations. If storing digitally, encrypt everything with a strong password. If storing on paper, do not show the wallet to anyone else who can memorize your 25 word key, or take a picture of the wallet without your permission. Sending someone a picture of the wallet is the same as giving away all of your funds.
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Whichever method you chose, be sure there's no copy of the Monero wallet left over on the device you used. You may need to securely delete the Monero wallet if you saved it to a disk, or make sure your printer does not save a copy in memory.
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*If you lose access to your Monero paper wallet the Monero will not be available to you or anyone else, ever. You wont be able to recover them!*
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#### Side Note
Option to encrypt an XMR mnemonic seed: https://xmr.llcoins.net/
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Download the html page and place it on your airgapped computer. Check the part "Encrypt/Decrypt Mnemonic Seed" and make sure you use "CN Add" with a decent password. Thanks manicminer5.
## Step 3: Send your Moneroj to the paper wallet
Now that you have everything you need, you are ready to send your XMR to your paper wallet. Simply send the coins to the wallet address you noted earlier. Make sure the address is correct, even if you copy-pasted it! Remember that if you send the coins to a wrong address, there is no way to have them back!
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#### Notes and How to Verify Funds
Because the Monero blockchain is private and untraceable, you won't be able to lookup your Monero Public Address and confirm that the funds have arrived like you might with Bitcoin. This is good for privacy, but bad for convenience.
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To securely verify the funds have arrived at your wallet, you will need to setup a View Only wallet. This is where that view-key comes in. To create a view-only wallet see the entry: [View Only Wallets]({{site.baseurl}}/resources/user-guides/view_only.html)
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To verify the funds are *still in* your wallet and have not been spent you need to create a Cold Wallet with your mnemonic key (all your funds) on an airgapped computer with an up-to-date copy of the Monero Blockchain. When finished you will have to securely erase the wallet or connect it to the internet and it becomes a Hot Wallet.