[00:00.000 --> 00:08.840]  Okay. So if you are watching right here, right now, then that's because you want to know how
[00:08.840 --> 00:13.840]  Monero's reference implementation GUI wallet works. You love the idea of Monero. You listen
[00:13.840 --> 00:18.580]  to all the talks. You're like, Diego, I need this. I need this in my life. I need to get
[00:18.580 --> 00:24.280]  on board with Monero. But just downloading things and using the wallet, it's all scary.
[00:24.280 --> 00:30.040]  What if my Monero just disappears? What if everything just goes away? So this is the
[00:30.040 --> 00:35.620]  workshop for you. I'm going to be kind of going through the... I'm going to be going
[00:35.620 --> 00:39.200]  through the Monero wallet, getting everybody comfortable with it. We're going to send a
[00:39.200 --> 00:44.820]  transaction. We're going to receive a transaction. We're going to go ahead and prove a transaction.
[00:44.820 --> 00:51.100]  So, you know, proving that I did in fact send from one place to another place. So, you know,
[00:51.100 --> 00:56.040]  and we'll talk about when somebody would want to do that, why they would want to do that,
[00:56.040 --> 00:59.380]  and then we'll go ahead and show you how we would go ahead and do that. And if you have
[00:59.380 --> 01:05.400]  any questions at any point in time, please, by all means, put them in the... put them in the
[01:05.400 --> 01:11.880]  chat. I have both a Twitch and a YouTube open. So I will go ahead and be watching both. Just
[01:11.880 --> 01:19.400]  put it in either. If you need me to slow down or any of these things. Ideally, as we're starting,
[01:19.400 --> 01:27.320]  I would recommend everyone to go to getmonero.org. There is a place for downloads. And, you know,
[01:27.320 --> 01:32.680]  as we're getting started here, if you want to follow along, go to getmonero.org slash downloads
[01:32.680 --> 01:38.220]  or click on the downloads in the navigation and go ahead and download the GUI wallet. Ideally,
[01:38.220 --> 01:43.080]  you would want to do the thing about where you're checking the hashes, which there is instructions
[01:43.080 --> 01:47.880]  for to do there as well. But we're not going to have time to go through that at present time.
[01:47.880 --> 01:53.020]  So you can go ahead and do that later. But you are going to want to check your hashes just to
[01:53.020 --> 01:56.900]  make sure you have the correct software that has not been hijacked or anything.
[01:57.340 --> 02:02.720]  So I'm going to go ahead and share my screen, if that's okay with everybody.
[02:03.160 --> 02:11.620]  Let's go ahead and do that. Just one second. Okay. So here is my lovely Monero wallpaper.
[02:12.500 --> 02:19.720]  And we have a freshly opened Monero GUI. It's not super freshly open, because when you do first
[02:19.720 --> 02:23.000]  open this, the first thing that you're going to see... oh, it's not this one. Although, hey,
[02:23.000 --> 02:28.140]  neat little feature. You can go ahead and switch light mode, dark mode. But basically,
[02:28.680 --> 02:32.660]  the first thing you're going to do is choose a language, I believe. Although maybe they updated
[02:32.660 --> 02:35.770]  that and it just takes it from your computer, but I don't think so. So you can go ahead and
[02:36.430 --> 02:42.150]  choose your language, and you're going to come to this thing. Simple mode, simple mode bootstrap,
[02:42.150 --> 02:49.410]  advanced mode. What do you choose? What do you do? How does this work? So this isn't really
[02:49.410 --> 02:55.970]  that scary. Basically, Monero wallets have two ways of connecting to the Monero network.
[02:55.970 --> 03:02.330]  Either you can download the blockchain onto your device. This is the one that has the least amount
[03:02.330 --> 03:06.870]  of trust, because now you're just... all the time, you're working with your own blockchain.
[03:07.070 --> 03:09.650]  You're not going to be working with anybody else's blockchain. You don't need to connect
[03:09.650 --> 03:14.450]  to any external computers. It's just all you, all the time. So you can do everything locally.
[03:14.570 --> 03:18.410]  But that's going to take time to download everything. That's going to take time to verify
[03:18.410 --> 03:23.670]  everything. That's going to take space. And right now, Monero blockchain is like, I don't know,
[03:23.670 --> 03:27.430]  like 80-ish. Somebody can correct me if I'm wrong. You can look it up. It's pretty easy. But 80-ish
[03:27.430 --> 03:33.170]  gigabytes. So it's a decent amount of space. It's a small investment. But with how big hard drives
[03:33.170 --> 03:38.390]  are these days, it's not too awful, I guess. So if that's what you want to do, you're probably
[03:38.390 --> 03:44.350]  going to want to go with simple mode bootstrap or advanced mode. And advanced mode just kind of
[03:44.350 --> 03:50.570]  lets you choose all the different things that you want to do. Simple mode bootstrap has fewer
[03:50.570 --> 03:56.330]  tweaking needed, but it still does put the blockchain onto your computer. Simple mode does
[03:56.330 --> 04:01.010]  the other way of connecting to the blockchain, which is basically this idea that you don't have
[04:01.010 --> 04:05.870]  the blockchain on your own computer, so you have to connect to somebody else's computer who is
[04:05.870 --> 04:10.510]  available to the internet, and you access their blockchain. So when you need to send a transaction
[04:11.050 --> 04:16.430]  and you need to kind of do the whole ring signature thing, you take stuff from them. You
[04:16.430 --> 04:23.070]  still have to scan the chain for your transactions, but you don't have to download the whole thing. So
[04:23.070 --> 04:27.290]  you're basically scanning somebody else's version. You don't have to have it on your own. This is
[04:27.710 --> 04:31.490]  so that way you don't have to use a bunch of bandwidth to put that all on your thing, and also
[04:31.490 --> 04:37.950]  so that way you don't have to store it yourself. For most people, unless you really want the
[04:37.950 --> 04:42.210]  blockchain, you could just go ahead and click simple mode, and it's going to take you and
[04:42.210 --> 04:46.290]  connect. It's going to find one of those and connect automatically the one that's going to
[04:46.290 --> 04:51.830]  be the closest to you. So I'm going to go ahead and click simple mode, and it's going to
[04:51.830 --> 04:57.570]  this thing. It's like, okay, are you sure? Just be aware. Just be aware. This is not the most
[04:57.570 --> 05:02.150]  private way that you can do it. Remote nodes could compromise some privacy. Let me go ahead
[05:02.150 --> 05:08.970]  and make this a little bit bigger. Wonderful. So we've made the window bigger, but we haven't
[05:08.970 --> 05:14.670]  scaled the text at all. I don't know if this is readable on the YouTube. I don't suspect that it
[05:14.670 --> 05:23.330]  is. Okay. We're just going to go ahead and move forward from here. You can ignore this. I'm going
[05:23.330 --> 05:27.730]  to go to advanced mode because I already have a local remote node set up that I'm going to connect
[05:27.730 --> 05:32.810]  to at my own place. But we're just going to pretend that you pressed simple mode and you
[05:32.810 --> 05:37.390]  pressed yes, I understand these consequences, and then you're going to come to here. Create new
[05:37.390 --> 05:41.510]  wallet. Create new wallet from hardware, open a wallet file, or restore wallet from keys and
[05:41.510 --> 05:45.690]  So these are pretty self-explanatory. Create a new wallet is what we're going to go through in
[05:45.690 --> 05:50.410]  just a second. That is going to let you create a brand new wallet. Hooray! Create a new wallet
[05:50.410 --> 05:53.990]  from hardware. I'm certain if you've been in the blockchain space for any length of time,
[05:53.990 --> 05:59.710]  you've probably heard the names Trezor and Ledger. These are hardware wallets that you can get. And
[05:59.710 --> 06:05.130]  they keep the keys on the hardware device. And in theory, they're supposed to be hard to extract,
[06:05.130 --> 06:10.090]  if not impossible. And it helps so that way, if you do have a virus on your computer,
[06:10.090 --> 06:14.230]  if you have any of these things, they really can't steal your Monero because all the keys
[06:14.230 --> 06:19.350]  are stored on the hardware and you need the hardware to be connected in order to send a
[06:19.350 --> 06:23.070]  transaction. So if you have access to one of those devices, you have one of those devices,
[06:23.070 --> 06:28.690]  or you want an extra layer of security, Monero does work with both Trezor and Ledger.
[06:28.690 --> 06:33.330]  So this is how you would make a new wallet if you were connecting it with the hardware.
[06:33.450 --> 06:38.710]  Open a wallet from file. So after you make a new wallet, it gets put on your file system. And so
[06:38.710 --> 06:43.310]  if you have multiple wallets for whatever reason, your wife has a wallet, your husband has a wallet,
[06:43.310 --> 06:47.730]  your dog has a wallet, and all of you guys have separate bank accounts, so to speak, right? You
[06:47.730 --> 06:52.790]  can click on this and navigate between wallets, if you have multiple ones on the computer.
[06:53.330 --> 06:57.090]  Restoring a wallet from keys or mnemonic seed. In just a second, when we create a new wallet,
[06:57.090 --> 07:01.590]  we're going to see what a seed looks like. It's basically 25 words that we're going to need to
[07:01.590 --> 07:07.030]  write down. And if your computer dies, if your phone dies, wherever the wallet is stored,
[07:07.030 --> 07:14.190]  you will be able to get your Monero by clicking on this option and typing those seeds in.
[07:15.050 --> 07:20.830]  And I will greatly stress the importance of seeds here in just a minute. They're extremely,
[07:20.830 --> 07:25.810]  extremely important. Is this bugging people that you want it more in the middle? I mean,
[07:25.810 --> 07:29.810]  yeah, we'll put it more in the middle. I don't know. Maybe some people are annoyed by that.
[07:30.810 --> 07:34.070]  So we're just going to go ahead. You can go ahead and ignore these ones right here. Change
[07:34.070 --> 07:38.890]  you back to simple, advanced, whatever. And change language is pretty self-explanatory.
[07:38.890 --> 07:43.350]  So we're going to go and create a new wallet. Okay. First thing we're going to find out.
[07:43.490 --> 07:49.530]  So on this virtual machine, I just named it funsies just because this is for funsies.
[07:50.270 --> 07:54.790]  And there is a wallet location. So this is where your wallet is actually going to be stored. You
[07:54.790 --> 08:00.030]  can click browse and change where that's going to be. Okay. So you can give your wallet a name.
[08:00.030 --> 08:06.610]  I'm going to call this Defcon new. You can name it whatever you want. Now we get to this thing,
[08:06.610 --> 08:14.410]  the mnemonic seed. And this is the single most important thing that you're going to do when you
[08:14.410 --> 08:23.490]  make a new wallet. You need to write these words down. You need to get out a pencil and a paper,
[08:23.490 --> 08:32.070]  10 papers, and write these words down. Okay. If you lose your wallet, meaning your computer dies,
[08:32.070 --> 08:36.390]  or it explodes, your house catches fire, and you don't get to save anything, you know,
[08:36.390 --> 08:44.150]  anything could happen. If you lose your computer, if you lose your wallet, but you have these words,
[08:44.150 --> 08:51.670]  then you have your Monero. If you lose your wallet and you do not have these words,
[08:51.670 --> 08:58.590]  then you have lost your Monero and nobody can help you get them back. These words are like a
[08:58.590 --> 09:04.950]  human readable representation of your private key. So if you do not have these words, you don't
[09:04.950 --> 09:12.770]  have your Monero. And further, if somebody else sees these words, they now have your Monero. Your
[09:12.770 --> 09:18.470]  wallet has no way to distinguish between whether that person is the actual owner of the wallet or
[09:18.470 --> 09:22.950]  not. All they know is, okay, they have access to these words, so they can spend the Monero.
[09:22.970 --> 09:26.990]  If you have these words, you can spend your Monero. So you need to write them down. It's
[09:26.990 --> 09:31.510]  not recommended to put them digitally, because what happens if your computer gets hacked or
[09:31.510 --> 09:36.030]  any number of things, right? And it's important that you have more than one of these in a very
[09:36.030 --> 09:40.950]  safe place, because if you only have one paper copy and it gets burned up, or something happens
[09:40.950 --> 09:47.410]  to it, or there's a flood, then you have lost your Monero. You must, must write this down.
[09:47.410 --> 09:55.450]  Do it now. Do it now. And for this particular presentation, I mean, I just pressed brand new,
[09:55.450 --> 09:59.970]  so if I click back to menu and create a new one, you're going to see that it's a new set of seed.
[09:59.970 --> 10:06.370]  It's a new set. It's just going to be different every time. So I would not recommend writing
[10:06.370 --> 10:11.870]  these down. I also would not recommend using the wallet with this seed for anything, because now
[10:11.870 --> 10:17.070]  this is available to the public. This is available on YouTube, on Twitch. And if anyone's writing
[10:17.070 --> 10:20.530]  this down, hoping, okay, Diego's going to be sending money to this wallet to prove things,
[10:20.530 --> 10:24.610]  and I'll just steal it, because I have the seed, ha-ha, you're mistaken. I have other wallets set
[10:24.610 --> 10:31.210]  up that we're going to do that for. So write this down. Don't send to this one. Don't send to this
[10:31.210 --> 10:38.650]  one. Wallet restore height. What does this mean? This is basically... so Monero's chain is really,
[10:38.650 --> 10:45.110]  really big. I told you it's several, several gigabytes large. And if you make a brand new
[10:45.110 --> 10:51.130]  wallet, right, if you make a brand new wallet, why would you want to scan the whole chain to
[10:51.130 --> 10:54.990]  see if you have any transactions? Because in theory, if it's a new wallet, you have no previous
[10:54.990 --> 10:59.410]  transactions. If you're restoring a wallet, then maybe it's important. But for a brand new wallet,
[10:59.410 --> 11:06.510]  it's not important. So we're telling it, okay, start 2 million blocks up. Don't start at block
[11:06.510 --> 11:13.210]  zero. Start 2 million blocks up. And the GUI's going to chew something to you relatively close.
[11:13.210 --> 11:18.670]  So we're going to go ahead and click next here. This is where you're going to put your password.
[11:18.790 --> 11:23.650]  Okay. If you forget your password, but you have your seed, then you have your Monero. If you
[11:23.650 --> 11:28.610]  forget your password and you don't have your seed, you don't have your Monero. So the seed is the
[11:28.610 --> 11:33.110]  most important thing. Write it down. The password is to make sure that anyone who gets access to
[11:33.110 --> 11:38.130]  your computer that maybe shouldn't have access to your computer can't send your Monero away or
[11:38.130 --> 11:41.570]  something. Because it doesn't require you to put in your seed every time. And we'll see that in
[11:41.570 --> 11:47.690]  just a moment. So I'm going to go ahead and click next. You can put no password here. I would not
[11:47.690 --> 11:55.710]  recommend it. But for these purposes, this is what I'm going to do. I do have a bootstrap node.
[11:55.710 --> 12:00.290]  So just one second. This should have been already filled in. But it's not. Which is a little
[12:00.290 --> 12:12.890]  annoying. Just one second. This is where I have put my temporary node. So now you all know where
[12:12.890 --> 12:20.070]  that is. Fantastic. Uh-oh. No. Connect to a remote. Do it here. Do it here. Okay. Create wallet.
[12:20.630 --> 12:25.470]  So here's where you would be putting in your password if you had one. I just press okay
[12:25.470 --> 12:29.710]  because I didn't put a password for this. And you come to this screen. And you see okay. Now we're
[12:29.710 --> 12:34.690]  scanning. But it's not from the beginning of the blockchain. It's from block 2 million. And bam.
[12:34.690 --> 12:39.770]  It's done. Super quick. This would have taken a long time. Hours, probably, if it was scanning
[12:39.770 --> 12:44.950]  from the beginning. But once it scans once, it doesn't have to do it again. So if you do scan
[12:44.950 --> 12:50.110]  from the beginning, then after it's gone through those hours, the next time you open your wallet,
[12:50.110 --> 12:55.470]  it won't have to do that process every single time. It's just that once. So we've got several
[12:55.470 --> 12:59.950]  screens over here. The GUI starts you out on the send screen. And as you can see, we're gonna put
[12:59.950 --> 13:05.090]  the address that you want to send to, the amount that you want to send, your transaction priority,
[13:05.090 --> 13:08.510]  which determines the fee that you give the miners. The higher the fee, the more likely you're gonna
[13:08.510 --> 13:14.110]  get in, unless the blocks aren't super full. In which case, pretty much everybody's gonna get in.
[13:14.110 --> 13:20.510]  So if we click on this, you can see slow, normal, fast, fastest. These are how much fee you can put.
[13:21.110 --> 13:23.590]  Monero also has this cool thing where you can add a description.
[13:25.070 --> 13:29.130]  Just for your personal thing. So when you send a transaction, you're like, oh, I sent this to
[13:29.130 --> 13:34.230]  my cousin for this reason. And so you just know what everything's for. We also have an address book.
[13:34.230 --> 13:39.210]  So if you use, you know, if you're paying an employee and you do it consistently every month,
[13:39.210 --> 13:42.730]  you can save their address here. So you don't have to ask them for it every time. Why would we want
[13:42.730 --> 13:46.470]  to do that? Well, if you've never seen a Monero address before, let's go to the receive screen.
[13:48.310 --> 13:53.490]  And this address is very, very long. You can't see it here because it's truncated. So actually,
[13:53.490 --> 14:02.250]  let's go ahead and open up a notepad. Boom. This is what it looks like. Okay. This is a
[14:02.250 --> 14:08.290]  Monero address. It's very long. It's very, very, very long. So you can't call your grandma and be
[14:08.290 --> 14:14.850]  like, okay, grandma, here it is. It's four, five, lowercase p, lowercase h, lowercase p,
[14:14.850 --> 14:18.810]  uppercase L. You can see how that's going to be prone to errors and stuff. So you really got to
[14:18.810 --> 14:25.190]  copy and paste it in every time. You got to ask for it. So the addresses, saved addresses on your
[14:25.190 --> 14:30.490]  address book is going to help with that. You also have a QR code. This is the same thing as this. So
[14:30.490 --> 14:36.510]  if you scan this QR code, we do have mobile wallets available. Cake wallet for iOS and Android and
[14:36.510 --> 14:43.750]  Monero for Android as well. You can go ahead and scan that. And send to it rather quickly.
[14:44.010 --> 14:47.610]  Transactions is going to be a list of transactions. Because this is a brand new wallet,
[14:47.610 --> 14:51.070]  we don't have anything here yet. And I'll show you one of the other wallets that I've made here
[14:51.070 --> 14:58.250]  pretty quick. Advanced for the most part. We're not going to cover those. It's outside of the
[14:58.250 --> 15:03.090]  scope. I've only got about 15 minutes left. And we still need to do some things. But you can mine
[15:03.090 --> 15:06.510]  from this. The only one we are going to touch on is this prove and check. This is how we're
[15:06.510 --> 15:09.950]  going to prove a transaction. And we're going to get to that in just a minute. Settings is where
[15:09.950 --> 15:13.550]  you adjust some things in the wallet. And you can go ahead and click around those and see for
[15:13.550 --> 15:17.910]  yourself. Accounts. We're not going to go ahead and worry about accounts for now. But there's
[15:17.910 --> 15:22.750]  just this idea that you can generate multiple subaddresses, which are addresses that link back
[15:22.750 --> 15:28.230]  to this one address. So, you can make multiple subaddresses that all go down to this one thing.
[15:28.230 --> 15:31.850]  And you don't have to have new seeds or make new wallets or anything like that. You can also do
[15:31.850 --> 15:39.950]  this from the receive screen. Create new address. What is this? This is subaddress 1. And Monero
[15:39.950 --> 15:45.450]  addresses start with 4. Subaddresses start with 8. And you see that the QR code changes every time
[15:46.110 --> 15:52.470]  to match the thing. Okay. So, this is the new wallet. We're gonna go ahead and push this aside
[15:53.070 --> 15:57.030]  because we know the seed for this wallet. The seed is for everybody. So, we're gonna go ahead
[15:57.030 --> 16:03.590]  and push this aside. And I'm going to grab some other wallets and bring them onto the screen.
[16:05.730 --> 16:11.030]  And here, we have Defcon send and Defcon receive. Let's go ahead and put this this way.
[16:11.990 --> 16:17.670]  Both of these, you don't know the seed for them. That's the point. But they do have some Monero on
[16:17.670 --> 16:22.830]  them. This one has three Monero on it. This one has one Monero. And we're gonna go through a
[16:22.830 --> 16:28.230]  couple of the flows. Before I move on, let's see if there's any questions. Blah, blah, blah.
[16:29.370 --> 16:33.110]  What about JavaScript? What about JavaScript? I don't understand.
[16:35.490 --> 16:43.430]  Okay. I think we're good. All righty. So, as we can probably tell by the names of the wallet,
[16:43.430 --> 16:48.150]  Defcon send is going to be sending to Defcon receive. So, how we're gonna do that, it's as
[16:48.150 --> 16:52.710]  simple as this. On the wallet that you want to receive from. So, if you are the recipient of
[16:52.710 --> 16:57.390]  money, you're going to go to receive. You're going to copy this. If you press this icon,
[16:57.390 --> 17:02.150]  it copies the address to clipboard. Or you can give them this QR code, which you can save as an
[17:02.150 --> 17:07.110]  image or also copy that to clipboard. And on the wallet that's send, if you're the sender,
[17:07.110 --> 17:13.450]  you're gonna go ahead and paste this in here. Now, you want to double check the address. Because
[17:13.450 --> 17:21.710]  there are there is malware out there that will replace the address in your clipboard with their
[17:21.710 --> 17:26.930]  own. And you want to double check that. You want to make sure that this address didn't get replaced.
[17:26.930 --> 17:35.390]  You don't have to do the whole thing. So, in this case, we see 47BXR3PB. And if we look here
[17:35.390 --> 17:45.570]  at the recipient address, we indeed see 47BXR3PBMKWI. And this truncates it, but it also
[17:45.570 --> 17:55.650]  has some at the end. You know, the last four are LQCW. If you want to be 100% sure that you're
[17:55.650 --> 18:01.430]  the correct address, you verify the entire thing. Most people, like, if you just do the first four
[18:01.430 --> 18:06.070]  and the last four, that's probably too little. Because it may be easy for somebody to generate
[18:06.070 --> 18:12.730]  something that looks similar. Verifying any of them is better than nothing. But, you know,
[18:12.730 --> 18:18.930]  verifying the first maybe 10, 16, the last 10, 16, it's the more you verify, the harder it is
[18:18.930 --> 18:22.590]  for somebody to kind of cheat you and make it so that way you don't know what's going on.
[18:22.590 --> 18:26.890]  So we've went ahead and put this in here. We can go ahead and add this to our address
[18:27.710 --> 18:31.450]  if we want to. I'm not going to go and do that, but you can go ahead and do that. If you click
[18:31.450 --> 18:35.230]  this, it'll take you to the address book. You know what? I am going to go ahead and do that.
[18:35.230 --> 18:42.750]  I'm going to add an address. And this is Diego. He's so cool. All right. So that's what this is
[18:42.750 --> 18:47.610]  added as. So now from the address book, I can actually click on this and it will autofill
[18:47.610 --> 18:52.850]  on the address here. It will autofill that. So I'm going to go ahead and send Def Con receive
[18:53.770 --> 19:00.890]  one Monero. For the most part, we're just going to like automatic on transaction priority is going
[19:00.890 --> 19:06.050]  to be okay for 99% of the time. I don't recommend touching this unless you know what you're doing.
[19:06.150 --> 19:09.810]  Advanced options, we don't really need any of this, so let's not worry about it.
[19:09.910 --> 19:13.690]  So now it's creating the transaction. It's building the ring signature,
[19:13.690 --> 19:17.350]  getting the cryptography ready, all this stuff. It's like, okay, this is where you're sending it
[19:17.350 --> 19:22.370]  to. This is the amount. This is the fee. Here's the ring size. Here's the description. Does all
[19:22.370 --> 19:28.110]  this sound good? Yes. Okay. It's going to prompt you to put in your password, which if we had one,
[19:28.110 --> 19:33.110]  I'd put it, but we don't, so I'm just going to press okay. All right. Monero sent successfully,
[19:33.110 --> 19:36.110]  is what this says, because I think it's a little too small and blurry for everybody to see.
[19:36.270 --> 19:42.030]  Monero sent successfully. And then it's got this huge long string of alphanumeric string.
[19:42.070 --> 19:45.170]  This is your transaction ID, and we're going to come back to this when we prove transactions.
[19:45.170 --> 19:51.910]  You can go to a Monero block explorer and put this in there, and we can see when it comes out.
[19:52.590 --> 20:00.150]  Okay. So I just sent one Monero, and if we go to transactions, we can see... you've seen here
[20:00.150 --> 20:04.250]  on the transaction screen, you can see that I have put some Monero onto this wallet for
[20:04.250 --> 20:14.370]  these purposes. These are the past transactions. I sent one XMR 28 seconds ago to this address.
[20:14.370 --> 20:19.450]  And boom! Oh, wait, no, this is the one that we have already that was already on here.
[20:19.590 --> 20:24.550]  If we click on transactions, you'll see... ha-ha! We do have one. This was the one that was already
[20:24.550 --> 20:29.230]  on here, but this was 46 seconds ago. The reason it's not showing up here is because it needs to
[20:29.230 --> 20:33.590]  be included in a block first. If you don't understand how a blockchain works, transactions
[20:33.590 --> 20:38.230]  need to be included in blocks, which then need to be mined and da-da-da-da-da. There's a lot of
[20:38.230 --> 20:41.730]  great resources out there that talk about how a blockchain works from the ground up. I would
[20:41.730 --> 20:47.150]  recommend giving it a look. But although that isn't super important right now, Monero's block
[20:47.150 --> 20:52.730]  time is two minutes, which means that the average amount of time it takes to find one block is two
[20:52.730 --> 20:58.150]  minutes. So this will be about two minutes, but it may be more, it may be less. It depends on the
[20:58.150 --> 21:05.450]  luck of the miners before this is going to start showing up here. So that is the send and receive
[21:05.450 --> 21:10.370]  flow. It's really not difficult. If you want to be the sender, you just got to know the address,
[21:10.370 --> 21:13.830]  know how much you're going to send to them. You can send all of your Monero there if you want
[21:13.830 --> 21:19.270]  and set a fee, which automatic is going to be okay most of the time. If you're the receiver,
[21:19.270 --> 21:24.290]  you're going to either copy the address and give it to them, double check that it wasn't replaced,
[21:25.050 --> 21:29.610]  or they can scan this QR code, which you can save as an image and send to them or whatever
[21:29.610 --> 21:33.990]  the case may be. In all cases, you're going to want to check to make sure that the alphanumeric
[21:33.990 --> 21:38.590]  string was not changed and the QR code was not changed. You just want to make sure that it's
[21:38.590 --> 21:41.790]  actually going to go where you want it to go. Because if you accidentally send to the wrong
[21:41.790 --> 21:47.330]  address, you have no way of getting that money back. There's nobody to call. There's no customer
[21:47.330 --> 21:51.690]  service. There's nobody who can get it for you. It's all cryptographically enforced and nobody
[21:51.690 --> 21:57.310]  can save you. So we're going to go ahead and prove a transaction really fast. And I hope this goes
[21:57.310 --> 22:03.670]  well. I hope this goes okay. This is the reason why I put a previous transaction of one because
[22:03.670 --> 22:08.890]  I don't want to wait for this one to come into a block before we start proving. So this one was
[22:08.890 --> 22:16.990]  sent three hours ago. And we're going to prove that this DEFCON send did in fact send to this
[22:16.990 --> 22:21.750]  DEFCON receive. So if you imagine that DEFCON receive is a merchant and DEFCON send, they
[22:21.750 --> 22:26.590]  purchased something in Monero from that merchant and the merchant says, oh, well, I didn't receive
[22:26.590 --> 22:32.970]  this Monero. I didn't get it. You can prove that you did. So let's go ahead and go to advanced
[22:32.970 --> 22:41.190]  and proof check. And here advanced proof check as well. So we need the transaction ID. So actually,
[22:41.190 --> 22:47.190]  let's go back to transactions. This was the one that I sent prior. And if we click on this,
[22:47.190 --> 22:50.850]  we see that there's details that drop down. Here's the transaction ID. You just find what's
[22:50.850 --> 22:55.970]  labeled transaction ID. And we just left click on it and it automatically copies it to clipboard.
[22:55.970 --> 23:01.790]  Great. So we're going to go to advanced proof check and paste in this transaction ID.
[23:02.470 --> 23:07.830]  Let's just double check that it's correct. A89BB64 blah, blah, blah, blah, blah. Yeah.
[23:07.830 --> 23:14.490]  It's all good. The address. We have to know what address we sent to. Once again, if you go to
[23:14.490 --> 23:21.750]  transactions, it has in the data about the transaction at the bottom, it has the address
[23:21.750 --> 23:30.510]  to send to. It's this one right here. So we're going to go ahead and copy this and put it
[23:31.950 --> 23:36.330]  in this proof check. Now, you can put an optional message here. And this is just
[23:36.930 --> 23:41.630]  an extra kind of fail safe. But the other person has to put this exact same message,
[23:41.630 --> 23:44.550]  otherwise it's not going to check correctly. So we're going to go ahead and put
[23:45.450 --> 23:48.350]  Defcon as the message here. Now, we're going to click generate.
[23:49.910 --> 23:55.330]  Now, once we click generate, it gives me this payment proof. This thing that starts with out
[23:55.330 --> 24:01.270]  proof V1 something, something. So we're going to copy this, double tap to copy the clipboard. And
[24:01.270 --> 24:07.110]  we would send this to the recipient. We would send this to them and say, this is the proof.
[24:07.110 --> 24:11.990]  This is the proof. Okay. Now, I'm the merchant. I want to say, okay, Diego says he sent it to me.
[24:12.450 --> 24:16.230]  For some reason, I'm not seeing it or I don't know. Okay. Let's go ahead and check this out.
[24:16.230 --> 24:21.710]  We're going to scroll down to the second part, check a transaction. The first thing we're going
[24:21.710 --> 24:25.270]  to do, we're going to paste in the signature. The out proof something, something, something that it
[24:25.270 --> 24:30.990]  gave to me. Okay. The transaction ID. I'm just going to copy it from here. But the transaction
[24:30.990 --> 24:35.710]  ID is a public thing. It's known to everybody. So sharing this or you can get it from the block
[24:35.710 --> 24:39.850]  explorer or whatever, it's not a big deal. I'm going to put that here as well. The address,
[24:39.850 --> 24:44.650]  I know what my address is. It's the address that I told them to send to me on. Oh, by the way,
[24:44.650 --> 24:48.630]  the other one has popped up now. So we have one, not two. And the message. If we put an
[24:48.630 --> 24:52.590]  optional message, once again, it has to be the exact same thing. So I have to put Defcon
[24:52.590 --> 24:59.990]  or whatever it is that they put. And we're going to click check. And it says, okay, this address,
[24:59.990 --> 25:05.230]  if it's too small for you guys to read, it says this address received one Monero with 107
[25:05.910 --> 25:12.830]  confirmations. This says you did indeed receive one Monero and there is 107 blocks on top of it.
[25:12.830 --> 25:16.050]  So you can look 107 blocks back and that's where you're going to find it.
[25:16.170 --> 25:20.430]  If any of these things is incorrect, so if we put an incorrect here and we click check,
[25:20.430 --> 25:23.690]  it's a bad signature. That's what it's going to say. It's going to say, nope, this isn't real,
[25:23.690 --> 25:27.350]  this isn't correct. So if the signature is not right or the address is not right or the
[25:27.350 --> 25:31.710]  transaction ID is not right, all of that stuff is going to be incorrect. It's only when everything
[25:31.710 --> 25:38.170]  matches 100%, which because everything is cryptographically generated, there is zero
[25:38.170 --> 25:42.490]  chance that if you put in everything correctly, the transaction ID, the address and the message
[25:42.490 --> 25:48.930]  that it will say bad. It's only if there's a big flaw in the software. Because all of the
[25:48.930 --> 25:52.090]  cryptography checks out, it's mathematically enforced, there's no way for somebody to...
[25:53.710 --> 26:00.070]  there's no way for a merchant to cheat you out and say, no, I didn't receive it. When you're
[26:00.070 --> 26:03.850]  watching them put in the ID, the address, the message and the signature and you verify that
[26:03.850 --> 26:10.230]  everything is correct, there's no way that this will be incorrect. So the address received one
[26:10.230 --> 26:19.930]  Monero. Great. Awesome. So that's how to prove and check a transaction. Not all wallets. So
[26:19.930 --> 26:26.510]  most mobile wallets and stuff come with this capability. So if you do need to prove or check
[26:26.630 --> 26:32.010]  a transaction, then, you know, where the ecosystem is still developing and blah, blah, blah. But
[26:32.010 --> 26:36.370]  there is a way to do it. There is a way to do it. And that's what I just showed you right here.
[26:36.370 --> 26:41.370]  That's the basics of the Monero wallet. As we're closing in, I got four minutes. That's the basics
[26:41.370 --> 26:49.970]  of Monero wallet and how it works. The last thing I'm gonna talk with you about is that this one
[26:49.970 --> 26:56.190]  Monero that I received, it's not yet spendable. You can see it says confirmations, 6 out of 10.
[26:56.310 --> 27:01.650]  The Monero protocol kind of has it so you have to wait 10 blocks before you can spend it again.
[27:01.650 --> 27:06.130]  And that's just a safety precaution to make sure that every organization doesn't ruin
[27:06.870 --> 27:10.510]  your transaction. And if that's a little technical, then I apologize. I don't have
[27:10.510 --> 27:15.690]  time to get into that at the moment. So are there any questions from anywhere?
[27:17.090 --> 27:22.390]  Can you please make the wallet a little bigger? Thanks. I'm sorry. I wish I could. But as you can
[27:22.390 --> 27:33.190]  see, when I make it bigger, the white space gets bigger. And the rest of the stuff doesn't. It's
[27:33.190 --> 27:40.310]  because the DPI of my monitor is too high, unfortunately. I don't know if there is a way
[27:40.310 --> 27:48.870]  to increase the size. Let's check it out. Settings. Interface. There's no way to change the
[27:48.870 --> 27:55.430]  size in there. You'd have to change it in the window settings or something. No, there's currently
[27:55.430 --> 28:01.610]  no way for us to make the interface bigger. That's something that should probably be there.
[28:01.610 --> 28:07.270]  We can talk. Maybe I'm just an idiot and it really is there and I just don't know.
[28:07.590 --> 28:13.790]  Yeah. So I do apologize for everybody. I do apologize, everybody, that the wallet
[28:14.310 --> 28:20.690]  transactions are so small. I hope you're able to squint and get a little bit of an idea. At the
[28:20.690 --> 28:25.890]  very least, where the general things are supposed to go. It's pretty self-explanatory where all the
[28:25.890 --> 28:32.690]  things are very neatly labeled. So hopefully this was marginally useful. If you get nothing else
[28:32.690 --> 28:40.010]  from this talk because everything is too small, write down your seed. Write down your seed.
[28:40.090 --> 28:44.970]  Remember that thing at the beginning? Those 25 words? Write them down. Write down your seed.
[28:44.970 --> 28:49.910]  Write it down. If you have your seed, you have your Monero. If you don't have your seed,
[28:49.910 --> 28:55.730]  you don't have your Monero. Write it down. And that's basically it for me, guys.
[28:55.890 --> 29:06.030]  Hope it was useful. Glad you all came. This will be available... you know, I'll probably record
[29:07.410 --> 29:13.210]  myself doing this a second time where you can actually see things if they're not too small.
[29:13.650 --> 29:18.750]  And we'll try to make that available on the Monero community YouTube channel that you're watching this
[29:18.750 --> 29:22.930]  on. So if you are still confused because you couldn't see anything, then be watching out for
[29:22.930 --> 29:26.490]  that. Hopefully within a week or so we can get that done and get that uploaded.
[29:28.770 --> 29:35.450]  That's it for me, ladies and gentlemen. We've got a meme competition coming up here fairly soon.
[29:35.450 --> 29:40.390]  I'm going to stop sharing my screen so you can see my lovely face. Hey, this is the guy that's
[29:40.390 --> 29:43.470]  been talking to you this whole time. Diego Sauzar. Rebrar.