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Bitcoin doesn't have an autoupdate feature like many of the other (especially centralized) software do - so for starters, if devs will go rogue and release a malicious version, the community will simply not accept it. Bitcoin users generally don't rush to upgrade their nodes asap, it's a pretty long process. And even if someone gets careless and updates their node without reviewing the code, they can always downgrade it. This is why decentralization of nodes is important - nodes are the most powerful entity in Bitcoin, both miners and developers don't have full control over Bitcoin.
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Warren Buffet is so insignificant to Bitcoin, he's not a cryptographer, he's not a computer scientist, he's a boomer with zero understanding of new technologies - can't even use a smartphone or email. So why do so many Bitcoiners care about his opinions? Because average Bitcoiners only view Bitcoin as an investment, but this is wrong because even if you only want to see profits, you still have to learn the technology so you can make educated decisions about its future. This is why Warren Buffet's "rat poison" opinion is worthless, despite his legendary reputation as a trader.
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This isn't evidence, it's just some links to articles about some people. You're not bringing anything new to the table, you're just posting some public knowledge that has been known for many years, and try to bring new meaning to it - this isn't how evidence works. |
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There's a lot of ways how a transaction can be invalid - you can have invalid signature, you can have invalid input by trying to spend coins that don't exist, you can spend higher amount than you have, you can have incorrect transaction format, you can have incorrect output or fee amount and so on. Basically, look at the structure of a transaction and think how can you edit its values to make them invalid.
But what exactly do you want to achieve? You won't be able to spam the network, your peers will just refuse to broadcast it further, won't put it on their mempool and will likely ban you if you do it too much.
I don't want to spam the network, just create a single invalid transaction. I experimented a bit with my own BTC Payment Processor and I would like to know how it handles rejected transactions Then one of the easiest methods is to take some existing transaction that is already mined and just try to broadcast it again. Although if you want to handle different errors, you would have to hand-craft invalid transactions yourself for different cases, if you can somehow get a reason why your transaction got rejected. |
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There's a lot of ways how a transaction can be invalid - you can have invalid signature, you can have invalid input by trying to spend coins that don't exist, you can spend higher amount than you have, you can have incorrect transaction format, you can have incorrect output or fee amount and so on. Basically, look at the structure of a transaction and think how can you edit its values to make them invalid.
But what exactly do you want to achieve? You won't be able to spam the network, your peers will just refuse to broadcast it further, won't put it on their mempool and will likely ban you if you do it too much.
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Second question, not that important:
I also want to divide the whole amount to let's say 8 and send the whole thing to 8 different addresses, and the gas fees, etc. make it complicated. It would be nice if the method calculated the fees and subtract from the money sent, and makes it equal for all addresses.
I don't want to hear things like: just use a calculator, I am perfectly capable of doing that, but gas fees, etc. take time, if there is something automatic, why not use it, right.
This sounds like you run some sort of service that needs to do payouts. If so, you can achieve this with any bitcoin library for the programming language that you use. I could make you an example for node.js if you want. Alternatively, if you don't trust programmatic Bitcoin clients, you can write (or ask someone to) a script that will either create unsigned transactions with the calculated amounts, and you then will just sign and broadcast it, or at the very least automate calculating the fees. |
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In the past we never saw the price skyrocketing right after the halvening like Tom Lee suggests here, it usually was taking quite some time, like a year or a year and a half. Even if this time it will be faster, it still unlikely to be that fast - maybe the market will be growing that fast by the end of this year, no in the middle of it.
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So what is the ultimate solution? The best way is to use the keys generated by wallets but if you want to independently dive into the quest, use secure generators like randomBytes npm module in Node.js.
randomBytes npm module is kinda useless in node, since it just calls node's own crypto module, so you can bypass that module and call it directly - https://nodejs.org/api/crypto.html#crypto_crypto_randombytes_size_callbackAnd browsers are also equipped with strong pseudorandom generator - it is used in production by browser-based wallets like MEW and MetaMask. |
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What is exactly the point of forcing miners to fill blocks in the first place? If you add a new rule that says that blocks are only valid if they are full up to some threshold, but a miner for some strange reason doesn't want to mine that much transactions, then they would just create transactions between their own wallets. As you can see, it solves absolutely nothing, just puts a mildly annoying obstacle for miners.
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Both Facebook and Telegram failed to officially launch their coins as they were shutdown by regulators. VK also have created their coin, in fact it happened a year ago, but it's still unclear if its a real crypto or not, and it seems like it largely flopped as there's no much adoption even on their own platform.
So, it seems like so far social networks failed to enter the crypto space, and it's a good thing - we don't need these centralized data-harvesting companies in this sphere, we have plenty of centralized shitcoins even without them.
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Hi,
Iam planning to start a new project regarding the blockchain systems and I also need a basic understanding of the bitcoins and their relations with the block chains.
I am planning to start a project around the investment plans that can be related to these block chain technologies.
Who in their right mind would invest in a project created by a person with zero knowledge of the field? Would you as a non-doctor to perform a life-saving surgery? If you are asking such basic questions, forget about your project, you will need to spend years to learn about cryptography and only then you might be able to create something, providing that you also know how to code. Because right now your project is doomed from the start. |
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Nice guide, I'm a JS developer myself and I love how you made those ECC functions from scratch, very educating! const convertPvtKey = pvtKey => {
const hexKey = '0x'+pvtKey;
const decimalKey = BigInt(hexKey).toString(10);
return BigInt(decimalKey);
}Is this necessary? What's the point of converting a BigInt to decimal string only to convert it back to BigInt? In Javascript all numbers are always in base 10, so BigInt(hexKey) and BigInt(decimalKey) are already the same. For example: console.log(BigInt("0xff") === 255n) //true
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In terms of gambling, it is actually 50/50 situation of probability, it is either you will win or lose except if you are really good at it so you can play even the bets are high without having any fear. Maybe signature campaign is not really a passive one if you do really want what you are doing with it, then continue even if the market experienced a downfall.
It's a pretty common fallacy in probability analysis to think that all outcomes are equally possible hence the probability is 1/n where n is the number of probabilities. The truth about gambling that many people are unfamiliar with is that in gambling you simply have less chances to win than the casino - and this isn't some conspiracy, it's a public knowledge. ~
You seem to be quite knowledgeable about gambling and its math, so why did you put gambling as an earning method in the first place? You know that you can't profit from it, that it's a money spending method, right? |
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Any individual who joins into the decentralized field has a hell lot of variety in front of him in order to start a stream of income. The above charts mentioned by OP might make it a bit easier for such people to understand and find their perfect job role into the blockchain networks. I would prefer newbies to join the roles which are less riskier no matter if the profits there are moderate too.
That's really not true, there's not much opportunities in crypto and the competition is huge these days - new signature campaigns pay only a couple of bucks per week, tons of news sites and blogs compete with each other, there's very little freelance work offers, mining has low margins. Early days were the golden era of earning, you could get hundreds of dollars from bounties or mine coins with CPU or single GPU for decent profit, and entrepreneurs had higher degree of success. Nowadays, it's better to focus on real life jobs and use earnings to buy crypto, instead of trying to earn crypto directly. |
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- Around 30,000-60,000 people with more than $1 million worth of bitcoins
Really? How do you determine this? Is it assuming one address = one person? I don't buy it either, this number is way too high, if it was true, this forum would be full of Bitcoin millionaires. Most likely they just used the logic that 1 address = 1 person, and then took addresses with more than $1mil, but it's obviously deeply flawed, as one person can and usually does own multiple addresses. And then there are exchanges which hold enormous amounts of coins, and many of them are in cold storage so it's even harder to determine how many coins people own. |
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How can people seriously look at this horrible marketing and think "wow, I'll put more money in TRON" instead of "TRON is definitely a scam that will crash sooner or later". This isn't the first time, nor the last time when Justin Sun tries to create hype for his coin and inadvertently exposes it as a complete shitcoin. If a coin you hold measures its success in PR stunts and hype instead of technical merit, you need to seriously rethink your investment decisions.
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Alternative to coinmarketcap - coingecko: https://www.coingecko.com/en/apiThey provide free public api, so you don't need to register any accounts and get api keys. The link I included has the official API docs, it seems you will be most interested in these endpoints: /coins/{id}/market_chart
/coins/{id}/market_chart/range
. Coingecko supports thousands of coins and tokens, so you can include much more than top 100 coins into your research, if you want to. |
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Anyways past can't changed. If you are still try to keep you alive in crypto is keep calm, Trust in your choice, and HODL it. One more thing you should be in
a very potential coin, if you are HODLING shit coins, So you need to be brave and jump into a better coins.
The only coin worth hodling is Bitcoin. If you try to hodl alts, and if you are in red because you bought close to the ATH, you are setting yourself up for a 100% loss - because chances for seeing those prices again are extremely slim. The only right course of action is to dump your alts, buy BTC and try to hodl it up until the new peak of the bull market cycle. Good traders know when to cut their losses and look for new opportunities, bad traders are fixated on their investments and wait for them to recover even if it can't happen. |
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Yes, things aren't looking good for alts - Bitcoin is already at 50% of its ATH, but ETH is only at 18%, Bcash is at 10%, and it looks the same for pretty much every other coins. In 2017 alts often outperformed Bitcoin, now we have the opposite - severe underperformance across the board with no signs of improvement. Ask yourself, do you want to keep risking your money for nothing or is it finally the time to admit that altcoins = shitcoins and go back to Bitcoin.
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I rarely mention it to people. If they told me it was a scam I'd simply wink and carry on.
If someone believes it's a scam when thousands of legit companies are building around it, the price is listed in newspaper finance columns and certain governments are legitimising it then good luck to them. I'm certainly not going to waste any of my own energy disavowing such mindlessness.
this^ Being cautious is a very good thing, but some people take it way too far (and often very selectively), so they view quite legitimate things untrustworthy. Just like there will always be antivaxxers, science denialists, conspiracy nuts - there will also always be people who view cryptocurrencies as scams or a bubble that will soon crash to the ground - and these people feel good about themselves because they see the "truth". You can't change their mind, so don't waste your time. |
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