Did you hear about them? What is masternode? What adventages do they bring. Let's dig into that a little bit deeper.
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Then there are another solutions, one of them is Proof of Stake (PoS). You do not need the army of graphic cards, but you need coins. Usually it works in the way, that if you have more coins, there is higher chance you will be selected for verifying current block (batch of transactions) and you will get some reward for that. If you would try to verify nonvalid block, you would be penalized and lose your coins (collateral). Then some cryptocurrencies which offer masternodes, nodes which provide these verifications plus some other stuff as securing messages, support voting for some proposals etc. These nodes usually has longer setup and need to run 24/7 and of course has higher rewards than pure PoS. Sounds interesting, right?
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But there is something interesting about masternodes coins. They offer to you to have a passive income, but their value depend on the current rate of the coin (and there are lot of "masternode coins"). So, you can find sites which provide overviews as masternodes.online, masternode.pro or masternodo.com where you can find interesting stats about how much they may make you rich. Is it really like that? Let's have a closer look at it.
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There was craziness about altcoins, bitcon was quite "stable" and there was chance to "discover" something new. After few days of tracking this market and a little research on bitcointalk, discord channels and other places on the internet I found interesting that there are coins with high interests, which are somehow tradeable. My criterias were ROI (Return On Investment), value of the coin, amount of coins as collateral, daily volume, available supply, available exchanges and community. Let's describe them more.
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a) ROI - indicates how much coins on rewards you should get during one year due to the collateral (locked coins for masternode), it decreases with rising amount of masternodes, on the other hand the price should rise with higher demand (which might not be true, if sellers sell their coins in any price, especially when there is only one exchange, then it is easy to manipulate the price). Higher ROI seems better, but be careful, when it sounds too good to be true... you know that, right? :)
b) Value - some devs premined new coin or decide for ICO (wtf? ICO for masternode coins? yeah, some do that) than they can set the initial price as they want. Some dev teams are really greedy, I would be very careful with that.
c) Collateral - well, it depends on current rate to find real value of that. But some are really crazy even for new coins. Spent over 5,000 USD per masternode for unknown coin? Obviously some people are able to risk that, for me it is suspicious for new coin
d) Volume - is that coin tradeable? well, if not, I would not be able to exchange my rewards, so the coin would be useless, at least in my own eyes. So, "masternoding" the coin, which you would not be able to trade, does not make sense (i.e. ICO coins which are not listed on exchanges)
e) Exchanges - well, it is a little bit connected to the previous point. If your coin is not listed on any reliable exchange (more then one is better), than it will be hard to trade that coin. It happened after coinsmarkets "upgrade". (Since start of January, this exchange still upgrading their system, so, you are not able to cashout your coins, when dev team of the coin is not active in searching for other exchanges - I would mention for example GOA, at least what I observed). Nowadays, there is a boom of CryptoBride DEX, where you can find many masternode coins, but there is still lack of volume for some coins. For me, I was OK for example with Cryptopia and even with CryptoBridge.
f) Community - why is that important? When you need help, you can ask for help, i.e. setting masternode, problems with updates, etc. When there is no community, there is even no value (again, my own personal opinion)
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What more, these coins are forks of DASH, PIVX or Zerocoin or what I consider funny, some are forks of other sh*tcoins. They are all "unique" in the same way. They offer peer-2-peer transactions (wow), anonymity (wee), untraceable transactions (whoa), etc... I guess we all know, that it is not anything special. But for fun I tried to read some whitepapers, honestly, it is waste of time. It reminds me student during exam who has no clue about the answer, but he still try to act as smart guy and talk some nonsenses. Even roadmaps might be more or less considered as jokes - everyone will implement mobile wallet during one year, finish/edit whitepaper (good point was mentioned on reddit, that someone asks if is it possible to start a coin without vision, that the whitepaper will be created in next 6 months after coin started).
Setting was quite easy, but I had to find some info about it, for common IT guy it is not problem to do that (in short, find VPS and usually set masternode with guide (usually pdf), which is very similar or even the same for these coins, some devs even forget to change the name for their coin, or amount for collateral in the guide, i.e. Tokugawa - Gainer). There was soon a big boom of altcoins when TOK got over 7 USD and SAGA over 22 USD. And to answer your question... yes, I missed that and HODLing. But rewards were generated, rewards were high and everything was OK. Before the dip of altcoins came I found coin called Gainer. It started with ICO, there were rumors the dev is the same as for Tokugawa, which was not good for me, since it meant that there will be no future development for TOK (well, it was not since the realease even before, but now... even hope died). So, I decided to get rid of that sh*t at 4.4 USD (as I understood after that, market is not rational, but retarded, even after these rumors which were confrimed even by dev itself, its price went day after to 6 USD but then during I guess 4 days fell to 2-3 USD)
I started looking for anything which would replace my missing masternode. I found 3 candidates: CrowdCoin, Phills Currency and Syndicate. CrowdCoin was strong in community (in my eyes) and their "marketing" looked well, because they are quite active on twitter. But nothing more and at that time, it was overpriced, around 20 USD.
Phills looked nice, in short, it should be a coin for developers, but they did not have any exchange and volume, when they joined to CryptoBridge, it was overpriced (around 1 USD) and its attractiveness disappeared.
Then there was Syndicate. Coin which is listed on Bitterx and Upbit. I found some info, that it should be reborn with new team (sounds good) and some exciting announcements should be revealed (actually not that much), and its price was around 0.7 USD. So, I found the winner, Syndicate. Setting up mastenode was quite OK and it is run well. Price is quite stable and there is place where to trade coins (Bittrex is really strog argument for this).
After some time, I spotted that there is some SmartCash, it is in Top 100 and it is not on any bigger exchange. It has volume and interesting community. So, it was my third and last try so far. It was I guess the easiest setup of masternode (they call that smartnode) thanks to their setup guide, which is really well written with great description. But there were some issues with wallet and some people had troubles that they masternodes just stopped working. They still work on updates and improvements, since that project is quite young, it is expectable there will be some issues.
Tokugawa - ICO coin with no active development and nice ROI. It is purely pump and dump coin with nothing special. Average reward per day was around 22 coins (one reward has fixed value of 11.2 coins).
SagaCoin - coin without big promises, dev team release updates which fixes some minor bugs, lets see what their whitepaper will bring. Average reward per day is around 25 coins, rewards are random, so you can get as one reward 44 coins or 0.3, it depends how much good luck you will have
Syndicate - quite stable coin, listed on big exchanges, so there is no problem to trade rewards. Average reward is around 12 coins per day (one reward has fixed value of 5 coins)
SmartCash - zerocoin fork based on community, now a little buggy, but with big plans for future, might be successful as dogecoin was. Average reward per day is around 31 coins (one rewards has value of 220 coins).