bitValor avalia as exchanges) ou negócios duvidosos/golpes (ICOs, MMN, etc). Talvez exista espaço para um modelo de assinatura/sponsor de usuários individuais para ajudar a pagar a conta - os servidores recebem em média mais de 3 milhões de request por dia.  Uai. Por que você não põe uns anúncios do google adsense ou similares que aceitam criptomoedas. Tem vários por ai e que te dariam uma graninha extra para passar o final de semana. Pois é, isso q eu ia perguntar. Bitvalor é um ótimo site. Eu mesmo utilizo ele várias vezes por dia para ver cotações, além do api q eu utilizo em minhas planilhas do Excel. Você poderia estar monetizando legal com acessos, no mínimo. Dive, o que vc é do bitvalor? Único dono, sócio, parceiro? |
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Your first payment was only for the initial listing but that did not happen because you made a mistake. Now that you've fixed it and wanted to proceed with the listing, you have to pay for their extra time and effort in listing your coin. That's how I see it. It may seem unfair but that's business.
I don't think that is unfair, because the exchange does not have any interest in listing his coin (this is because he is paying to get listed). And he made a mistake and the coin must be listed again, which requires additional work for them (someone who receives a wage is responsible for listing coins, and will have to work again). |
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All fees must be transparent.
If you require KYC of any kind, this must be clear when creating the account. No surprise fee, no surprise KYC, etc.
Fast withdrawals and fast support is good too.
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I’ve read a couple of threads in the past by ICO launchers that explained how they were often provisioned with an upfront fee in order to get a good review. That kind of killed my confidence on review sites, and once many of those ICOs have taken place, you get to see how all those scores were pretty meaningless and barely ever came close to predicting which ICOs would make it and which wouldn’t.
This is certainly a problem... However I believe that in time some true websites that do not accept paid review will show up, and become trusted. Their "trust" by the community will be more valuable than this "paid" reviews... |
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In this case I would look for professionals: http://walletrecoveryservices.com/Also, move your topic to Technical Support, where more knowledge people will be able to help you. |
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In my opinion newbies should invest only in Bitcoin.
Actually, most of people should invest only in Bitcoin.
There are some other good projects around, such as Ethereum, which are proposing an interesting technology. However, to understand and being able to device what is a good and interesting technology or innovation you must have some years of experience here.
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What IF:
- I use official ledger hardware on a compromised PC?
- Isn't Ledger's official hardware prone to clipboard copy-paste scams where you copy a BTC address and a malware detects and changes it to another address? Is such hardware safe from it?
You can use it on compromised pc. They already patched it and now the address is displayed in Leger nano led visor. (On the device, theoretically unhackable) I got that, you actually got me wrong there.
You're mistaken here as you are taking it like $10 discount but I've asked my question based on - if some sellers sell it way cheaper for a measly $10 - $20 as that's what lures cheap buyers to fall for these deals.
I would not use it even for free. Not worth the risk. As I said, it is a permanently compromised device |
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You can find a lot of courses at Udemy, they are cheap and are worth doing, if you can pay.
It is better than just be googling around (you will lose a lot of time looking for good information, especially at first). I would go to some cheap course first.
I have already seen some courses on udemy, but my English is not so good to address such a difficult subject. I was seraching some book, but many are negative reviews. Maybe before solidity you should improve your knowledge on a more important language... English Take a look at mastering ethereum. You will learn the basics about ethereum and something about solidity. Written by ethereum co founder. https://github.com/ethereumbook/ethereumbook |
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There’s no realistic chance of getting those removed after spreading malware through a fake Ann thread. I mean, what is the justification that can exonerate the tagging?
This is why it is important to at least read what you are translating. Check links, do not work for shady users and websites.. If you had used virustotal or any other similar service you would have denied to translate the Ann. Working for scammers really ruins one's reputation, here and in the real world. |
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For 10 bucks it's not worth.
In this case, I consider any hardware that came from second hand user as permanently compromised. I would just discard it .
A hacker could have access to it and made hardware modifications, or even a firmware modification. I am no specialist, I know my limitations, I could be cheated this way. So I prefer and I advice only buying from official retailer.
Even if the seller is trusted or whatever they are not professionals. Someone who works there may have access to the hardwallet and made a modification.,
If you are buying a hardware wallet and want to save 10-20 bucks just wait for a Black Friday or some other promotion (ledger makes a lot of promotions in their website).
It is not worth trading security for 10-20 bucks, specially in a hardware wallet, that you are buying to feel 99.9999% safe.
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Interesting, i'll check it later. By any change, do you know article/docs which mention about how decentralized oracle works?
I was reading about it today in Mastering Ethereum, written by antonopoulos. Very reliable in my opinion. Decentralized Oracles While centralized data or computation oracles suffice for many applications, they represent single points of failure in the Ethereum network. A number of schemes have been proposed around the idea of decentralized oracles as a means of ensuring data availability and the creation of a network of individual data providers with an on-chain data aggregation system. ChainLink has proposed a decentralized oracle network consisting of three key smart contracts—a reputation contract, an order-matching contract, and an aggregation contract—and an off-chain registry of data providers. The reputation contract is used to keep track of data providers' performance. Scores in the reputation contract are used to populate the off-chain registry. The order-matching contract selects bids from oracles using the reputation contract. It then finalizes a service-level agreement, which includes query parameters and the number of oracles required. This means that the purchaser needn’t transact with the individual oracles directly. The aggregation contract collects responses (submitted using a commit–reveal scheme) from multiple oracles, calculates the final collective result of the query, and finally feeds the results back into the reputation contract. One of the main challenges with such a decentralized approach is the formulation of the aggregation function. ChainLink proposes calculating a weighted response, allowing a validity score to be reported for each oracle response. Detecting an 'invalid' score here is nontrivial, since it relies on the premise that outlying data points, measured by deviations from responses provided by peers, are incorrect. Calculating a validity score based on the location of an oracle response among a distribution of responses risks penalizing correct answers over average ones. Therefore, ChainLink offers a standard set of aggregation contracts, but also allows customized aggregation contracts to be specified. https://github.com/ethereumbook/ethereumbook/blob/develop/11oracles.asciidoc#decentralized-oraclesI know that this reputation system will rank nodes according to data, stake of link tokens, and some other stuff. I don't know exactly, and there will be some kind of consensus mechanism based on pos. I need to read more to explain lol |
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1. Require to trust the oracle being honest or/and neutral
That's not necessarily true, because you can have a decentralized oracle. There is one decentralized oracle, it is chainlink (top20in cmc). It is already running a mainnet.. it is still in it's infancy, but it is a possible solution. It has some node reputation and pos system, interesting project. . I think that if smartcontracts are to be one day used, it is going to be through decentralized oracles. But oracle problem can be solved. If nobody finds a solution to this problem, smartcontracts are probably going to be almost useless. But not a fraud as stated above.. |
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I think exchange market is already saturated. There are far too many exchanges, and few of them are reliable.
Why would anyone use a shitty exchanges such as cryptopia if you can use a reliable one such as Bistamp, Binance, Kraken, Coinbase?
it is very hard to compete against those big guys...
Of course IEOs can lead to great profits, but great losses are more probable.
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I think it is the opposite. I cannot see anyone´s skin color, race, nationality, anything here. I can just see what you write. I cannot see what you write and think "ah, this is a dark skin guy". If you are saying something useful and you are respectful with others, you will be respected here.
As we have people from all around the world here, most users countries cannot be identified, unless they say where they are from.
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I'd advise against taking a loan to take a Lightning Loan just to test LN  You won't be able to pay back the loan, because opening and closing channels costs miners fees , also txs to eclair wallet. So you will pay at least 4 transaction fees, and those open/close fees are quite obscure to me (spent much more than expected) |
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Satoshi called coinbase transactions as "incentive" in bitcoin whitepaper. It is just an incentive, and it is meant to end. I see no problem, as the incentive is needed only while adoption is growing. And as adopting grows, incentive get lower (halving). 6. Incentive
By convention, the first transaction in a block is a special transaction that starts a new coin owned by the creator of the block. This adds an incentive for nodes to support the network, and provides a way to initially distribute coins into circulation, since there is no central authority to issue them. The steady addition of a constant of amount of new coins is analogous to gold miners expending resources to add gold to circulation. In our case, it is CPU time and electricity that is expended.
The incentive can also be funded with transaction fees. If the output value of a transaction is less than its input value, the difference is a transaction fee that is added to the incentive value of the block containing the transaction. Once a predetermined number of coins have entered circulation, the incentive can transition entirely to transaction fees and be completely inflation free. In an “ideal” scenario where BTC is used on a daily basis for everyday purchases, the number of BTC TXs would increase drastically to levels very distant from the current ones, giving an edge to capitalizing on TX fees. TX fees themselves will also rise as well, and I’m pretty sure we’ll see some technological changes that facilitate all this.
I agree that we will have a drastically increase in the number of TXs, but I don't think fees will rise. If there are too many TXs, fees can be low and even so miners get a good reward. If fees are not enough to keep mining profitable at current hash rates, miners will leave and hash rate will drop, making mining profitable again. The system is able to auto regulate itself, and users are also part of this regulation, by choosing low fees when transactioning. |
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The owner cannot change the smart contract, but the smart contract purpose is to issue tokens. Most smart contracts have function to mint, remove tokens. This is complete centralization. You can call the smart contract functions from outside and ask it to block addresses, move money from one address to another, mint more tokens etc... The functionalities of the smart contract are totally centralized.
Smartcontract is not a smart token. Forget tokens man. You are talking about one use of smartcontracts, which is not the only one, but it is the most used now in this infancy of the technology. You are also talking about immoral uses of it, like blocking addresses. Ok, you can make a smart contract do that, but you cannot force anyone to participate in such a contract. Pasting bad smartcontract codes do not prove anything. You cannot force people to participate in such contracts. And once they are written in the blockchain, they are open source and cannot be changed. Bad smartcontracts do not make good smartcontracts a fraud.Why don't you talk about DApps, like cryptokitties, online games, etc? Are they fraud as well? DApps are just a smartcontract and a web interface. So cryptokitties are now a big fraud, and they want just to steal money from you, block addresses, centralize the ethereum blockchain? Think about what you are saying.
I think that you are mistaken in thinking that a Smart Contract is as good as a blockchain, because it is saved into a blockchain.
It is nothing more than a script saved in a block that can be executed by a node... but it is totally in control of the owner, who can control his tokens the way he wants and without oversee from outside by calling the smart contract and ask him to do what he wants.
Man, smartcontracts have nothing to do with tokens. Forget tokens. Smartcontract doesn't need tokens. It can be an agreement about tokens, or not. And no, it is not possible "call the smartcontract from outside and do whatever he wants". Unless it has a giant security back door or something like that, which can be audit as smartcontracts ARE PUBLIC, because they are in the blockchain. I suggest that you read more information about smartcontracts, you can begin with Mastering Ethereum from Andreas Antonopoulos. You think that smartcontract is like a smart token, which is not. It is much more than that. Smartcontract will allow you to buy anything you want (a house, a car, rent something, etc) , to gamble, etc (when oracles start working) |
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When dealing with cryptocurrencies you should do all the basic security procedures
-2fa on exchanges
-never let funds on exchanges for long periods
-use a safe wallet such as Electrum or a hardware wallet
-use an antivirus and scan your computer periodically.
Looks like you haven't done any of this....
I recommend that you buy a hardware wallet if you want to still invest in cryptocurrencies. I recommend ledger or trezor, but buy only from official retail
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Smart contracts are by definition centralized, the owner can stop it, start it, and do whatever he wants, the users of the smart contracts are naked, powerless and can lose everything.
So from the start a smart contract is a blockchain fraud.
The success of the smart contracts is just because it is an easy way to clean money by the mafia. They buy at the ICO, sell at the introduction and they have clean Bitcoins. Easier than any other washing money scheme.
Hello, I don't know where you read this, but you are completely wrong. Please don't spread this nonsense. Smartcontract is a great innovation. It is a tamperproof digital agreement that once created none of the parts control. The smartcontract can be audited and registered in the blockchain. Once in the blockchain, as it is decentralized, there is no "owner" anymore and the creator cannot change the contract anymore, as it is already in thousands of computers (i.e. in the blockchain). It is a great innovation because the smartcontract will be executed as written. You cannot say "I know I owe you 500 thousand dollars, but I won't pay. You can start a lawsuit against me, which will cost you thousands of dollars and take years, or we can arrange a discount now" . This is very common around the world, and smartcontracts will not allow that (funds will be under custody of the smartcontract, which none of the parts control, and there is no third party also). There is no fraud in it. ICOs have nothing to do with smartcontract. ICO is just a new funding method, and you can fund whatever you want through it. The problem with ICO are not the smartcontracts (which are sometimes used during the funding phase to send the tokens to whoever paid ETH), but the people involved and scams attempts. What you are saying is basically that technology is bad because there are scammers out there. Bitcoin is also used by "mafia" to receive funds and wash money. Is it a fraud as well? Pablo Escobar created a fake Taxi Service to wash money, so let's call all taxis a fraud? |
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These laws can't do much against bitcoin, but cryptocurrencies like Libra, Ripple, Ethereum, which has a company behind them, must obey those laws or the companies will be shut down. There is nothing to shut down in btc., As there is no company
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