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2361  Bitcoin / Development & Technical Discussion / Re: The year is 2020 - Lightning Network is a huge success! What now? on: February 20, 2018, 11:10:57 AM
They have been feasting on the high miners fees for a long time and with the Halving in +/- 119966 Blocks, their Block reward will also be reduced by 50%. < http://www.thehalvening.com/ >

The have been feasting on high transaction fees for half a year or so. Before that transaction fees were negligible. Heck, 2 years ago the price of BTC was negligible compared to nowadays. So even accounting for the upcoming halving I wouldn't be to worried about the balance sheet of miners.


How long until Bitcoin mining becomes unprofitable, if most miners fees would be eliminated by the introduction on the Lightning Network?

While Lightning Network will vastly improve Bitcoin's transaction throughput, keep in mind that overall adoption and thus the amount of transactions is also likely to increase significantly. This means while each individual will send less transactions on-chain, the overall demand for on-chain transactions will persist.

Also keep in mind that Bitcoin mining will always remain profitable. Worst case you'll see hashrate growing at a slower rate and a decrease in Bitcoin's power consumption.


Will these miners have to change their business model? Running Lightning Network hubs to make up for the miners fees that they are going to lose?

Running LN nodes is unlikely to be profitable. It might be a nice little side income, but unlikely to be worthy of a business model.


Will increased adoption with the Lightning Network, increase settlement fees <on-chain>, when channels are opened and closed? Will this make up for the reduction of miners fees, because most micro transactions moved to channels in the Lightning Network?

The fees per kb for channel opening and closing transactions won't differ much from the fees per kb for regular on-chain transactions. But as mentioned above, you can expect an overall increase of userbase and thus transactions to offset the "loss" of transactions moving off-chain.
2362  Bitcoin / Development & Technical Discussion / Re: Misconceptions about the Lightning Network on: February 20, 2018, 10:21:50 AM
They are not as "desperate" as you believe. They have also been developing something.

Take a look.

https://twitter.com/CryptAxe/status/964666919885271040

https://github.com/drivechain-project/docs/commits?author=CryptAxe

Paul Storzc's "Drivechains" might be Bitcoin Cash's scaling solution, maybe to be announced in their "Satoshi's Vision" conference on 3/23/2018.

I believe it was a mistake selling all my Bitcoin Cash. Hahaha.

Funny. A couple of months ago r/btc was still criticizing Bitcoin Core for scaling with what they perceived as federated sidechains. Now sidechains appear to be one of the main innovations coming to Bitcoin Cash.

Also the motivation behind implementing drivechain reads like a checklist of what they critizied about Core when SegWit was still debated (ie. protecting Bitcoin from hard forks, ignoring ideas...)

I digress though and I still need to read through it from a technical perspective.

But you definitely got a good point. The alts aren't sleeping. Ethereum also has some interesting developments going. And I'm sure some of the other alts as well.

Keep in mind though that a lot of these innovations are not exclusive to each respective blockchain. Sidechains have been in the works for Bitcoin even before Bitcoin Cash entered the stage. Vice versa Lightning Network can be implemented on any blockchain that doesn't suffer from transaction malleability.
2363  Other / Beginners & Help / Re: Is block chain bad for the environment? on: February 20, 2018, 12:05:10 AM
I read that a lot of electricity is consumed in mining bitcoins. Is block chain bad for the environment?

A lot of human resources is consumed by banking and finance. Cryptocurrencies could free up much of what is basically a waste of workforce.


You can operate a blockchain without any mining power needed if you would want to. It's simply a ledger that isn't distributed by a central system, but rather peer 2 peer. Look at ripple et al. They don't need hashing power.

Ripple is centrally issued and requires a network of trust. Ripple and the likes of it fail at providing some of the core value propositions made by cryptocurrencies, namely being permissionless, trustless and decentralized.


I would however conclude that the bitcoin mining process is pretty wasteful. With most miners located in china (where clean energy is a word they don't know.)

You might want to rethink your conception of China:

https://www.theguardian.com/environment/2018/jan/10/china-on-track-to-lead-in-renewables-as-us-retreats-report-says
2364  Other / Beginners & Help / Re: Protect Your Earned cryptocurrency : Tips on Security on: February 19, 2018, 11:17:38 PM
All in all, good list. However:

2.Use a good Anti-virus software.
 Use a reputed anti virus software such as Avira, Kaspersky etc and keep it updated to the latest update available. This can prevent viruses, trojans, keyloggers infecting your computer.

I'd actually recommend simply using the out-of-the-box Windows Defender software instead of third party anti virus software.

Most actually open up more attack vectors than they close:
http://robert.ocallahan.org/2017/01/disable-your-antivirus-software-except.html

Many anti virus solutions basically MitM your https connection in a misguided effort to protect you:
https://www.securityweek.com/antivirus-software-has-negative-impact-https-security-researcher

Making sure to keep your operating system up-to-date is key. Luckily by default Windows pretty much forces its user to update on a regular basis. Good malware usually doesn't get caught by anti virus software anyway.
2365  Alternate cryptocurrencies / Altcoin Discussion / Re: "Ethereum" founder warns cryptocurrencies ‘could drop to near-zero at any time’ on: February 19, 2018, 05:31:14 PM
should we be worried?  Undecided

No, ETH is one major shithole and it will not going anywhere.

ETH is NOT decentralised, ETH is NOT a world super computer. I'm wiping my ass off with diarrhea with ETH  Undecided

Rootstock will bring a real smart contract platform to Bitcoin.

I would have put it slightly differently, but you're not wrong.

I'm still not holding my breath for Rootstock though.


Gold and silver will never be out of the league and also don't forget that real estate is another one. I remembered the video I watched that Robert Kiyosaki said, real estate is the best investment.

Real estate is the best investment? Tell that to the USA of 2007. Or early 90's Japan. Real estate bubbles are a thing too.


Buterin is parroting almost the exact same thing that Gavin Andresen said about bitcoin 4-5 years ago. When lead devs start talking like that it always makes me a little nervous. What insider info do they have that I don’t have? Are they just trying to wash their conscience clean if something they see on the horizon actually happens? That kind of statement is just too valueless and convenient but it does provide a segue to the future statement of, “well, I did warn you people so you can’t blame me.”

Edit: Andresen was a cofounder of The Bitcoin Foundation with Mark Karpeles. Andresen made his statement to that effect shortly before we all found out that Karpeles was about to “lose” a half million bitcoins.

Bitcoin has sold itself as an "economic experiment" since the very beginning, so such statements are nothing new. In fact it is indeed something that needs repeating during times of overinflated expectations. Good observation though. I hope there's nothing bad waiting in the bushes for our fellow ETHers.
2366  Alternate cryptocurrencies / Altcoin Discussion / Re: "Ethereum" founder warns cryptocurrencies ‘could drop to near-zero at any time’ on: February 19, 2018, 03:26:48 PM
Lots of people on social media sites like Facebook are raging against Vitalik due to what he said. But he's actually right. The cryptocurrency could take a nosedive anytime and could take years and years on end to rebound in price. In my opinion what Vitalik said is better than shilling Ethereum for price rises. People on Facebook are saying that Vitalik is spreading FUD; but Vitalik is a very smart guy, and he's just being very realistic.

I 100% concur.

Personally, I still strongly believe that technologically sound cryptos have a higher chance of increasing in value and utility rather than dropping to near zero and vanishing completely. But nonetheless there still is a chance that cryptos become utterly worthless in the future. And definitely no one should invest more than they can afford to lose (technically true for pretty much every riskier investment, to be honest). Claiming otherwise would be irresponsible, so hats off to Vitalik for speaking the truth.


Old time buyers/investors have earned 10,000 times profit by all those talks and now they fear "total loss"

I don't think anyone is worried about the early adopters. It's mostly the new money that needs to be made aware of the risk, as they lack the experience and stand to lose the most.
2367  Economy / Economics / Re: How justified will it be to use a blockchain without a cryptocurrency? on: February 19, 2018, 10:34:44 AM
Coin is not a necessary condition for a proof of stake blockchain. Not all coins are dependent on blockchain, just the standards might get changed. And the real problem will be the loss of postions such as miners will be eradicated.
Exactly, you don't need tokens or coins to store data in the blockchain. There could be a blockchain just to store all names and basic birth data of all citizens and new data could be added with smart contracts (births, deaths, name changes...). There is no purpose for a currency here. Of course, such blockchain would need to be proof of stake or other concept which is not proof of work because no-one would want to mine new blocks for a blockchain that has no block rewards.

How do you secure a public blockchain without financial incentive though? Proof of Stake still implies that the system uses some form of valuable token, otherwise there'd be nothing to stake with. For Proof of Stake to work there needs to be something at stake apart from the data being stored. And even then its security is not without dispute.

Of course you could create a permissioned or private blockchain, but then you lose all the benefits of a blockchain and are just back at distributed databases.
2368  Bitcoin / Development & Technical Discussion / Re: Hash & Block in Bitcoin on: February 19, 2018, 07:47:33 AM
HASH
In computer term, hash is results of complex from mathematic calculation which is easy to reproduction but quite difficult to repeat, and quite difficult to predicted.

What do you mean by difficult to repeat? The amount of processing power that goes into hashing the data? That entirely depends on the hashing algorithm being used. All (cryptographic) hashing algorithms are by definition easy to reproduce and hard to predict. However, by design, some require more processing power than others. Compared to some more modern hashing algorithms, SHA-256 uses only few resources.


The function of Hash is an algorithm that changes the text or message to be series of random characters. That random characters has some same characters inside.

Both the input and output of a hashing function is just binary data. It's just that in the case of text or messages the input is usually depicted as Unicode characters or similar, while the output is usually depicted in a hexadecimal format, which encompasses only a subset of characters (0-9a-f).

2369  Bitcoin / Development & Technical Discussion / Re: Do you think Bitcoin need to change it's PoW algorithm? on: February 18, 2018, 11:09:50 PM
Also note that requiring ASICs to mine BTC makes it less susceptible to hashrate fluctuations caused by rising alt coins. We got a glimpse of the possible impact of such competition during the early days of BCH. Most alts that share BTC's PoW scheme are irrelevant today, but if BTC were CPU / GPU mineable again this could have serious implications regarding the stability and security of the network. Back then BTC was the only game in town, but nowadays sudden alt price surges could result in network slowdown and thus congestion.

ASICs leading to centralization has been mostly due to there being only a handfull of mining hardware manufacturers on the market, using a signficiant amount of hardware for mining themselves. With the likes of Samsung entering the mining market we might see wider availability of mining hardware again, or at least some serious competition for the existing manufacturers. Assuming Samsung actually pulls through this will increase decentralization either way.
2370  Bitcoin / Development & Technical Discussion / Re: Bad Code Has Lost $500M of Cryptocurrency in Under a Year on: February 18, 2018, 11:26:09 AM
As these events occur again and again we get to reflect on code developers and their skills.  Should they even be allow to release these coins?

Everyone should be allowed to release coins. That's the whole point of being able to fork open source code -- cryptocurrencies are no different in that matter. It's only that people should be smarter than throwing their money at every new coin and token that enters the market.


I see many people signing up for bounty programs for new coin announcements even though much of the business and/or technical details are missing.  The only thing the announcements seem to boast are the bounty programs.  These coins still raise millions of USD.

People that sign up for bounty programs don't care much about a project's feasability. Why should they, it's free money for the most part (ignoring time spent).

It's only when people start literally buying into it that things get problematic. But they can mostly blame it on themselves, if you're honest. No one is forcing anyone to invest in something that they don't understand.


By looking at some meetups activities, it looks like the waves of new coins will continue if not pick up more speed.  With such a madness to release coins so quickly, the coding errors are inevitable.  But prior to talking about code bugs, the requirement errors should be first identified.  I wonder if all these rapid releases even understand their own requirement.

It seems like every now and then people need to take a lesson. Many people will waste their time and money, but in the end the worthile projects will prevail and some people will hopefully end up smarter regarding what makes a good project.


Most of the Bad code is a result of companies using proprietary software. In the Open source environment, proper Peer review are done, before the code is submitted and applied. Some of these companies are in such a rush to be "first to market" that they skip beta testing and review. They want to be "first to market" and then patch like cowboys in a live environment.  Angry

An open source environment doesn't prevent one from writing incorrect code. Case in point:

We saw what happened with rush implementation with Bitcoin XT.  Roll Eyes

I guess you are mostly referring to applying a proper engineering methodology. Whether you do proper engineering has nothing to do with being open source or being proprietary -- it's a matter of properly assessing how critical your code is. And in crypto pretty much every bit of code is critical while most devs still seem to be in happy-go-lucky start-up land, instead of in finance.
2371  Economy / Speculation / Re: Do you believe in TA for cryptos? on: February 15, 2018, 11:20:41 PM
In general I find TA rather silly, however it is definitely worth knowing some of the basics as to be able to understand how the other market participants tick. At least support and resistance levels seem to play an important role in crypto, if only because other people believe them to be true, making the confirmation of support and resistance levels a self fulfilling prophecy.
2372  Bitcoin / Development & Technical Discussion / Re: Modulo Bias on: February 15, 2018, 11:07:44 PM
Let's say I have some 6-sided dice and want to generate a new Bitcoin wallet. The goal is to get a 64-character long hex string that can be passed to BIP39 converter to get xprv and a nice mnemonic.
When I was researching about using dice for password generation, I've seen that you can just generate a long string of your dice throws and pass it to SHA256. So, in my case I have 5d6 and concatenating results of 28 rolls will give me slightly more than 128 bits of entropy, that will get passed to SHA-256 to get a hex string. Is this approach correct?

SHA-256 being a cryptographic hash function the output should by definition be uniformly distributed, ie. not be affected by the problem described by nullius.

The tricky part is selecting an input with sufficient entropy, as to make it hard for an attacker to guess the input itself. Dice throws meet this condition.
2373  Bitcoin / Legal / Re: Can I really just sell huge amounts through Coinbase? on: February 15, 2018, 04:54:17 PM
Yes

*slow clap*


I will be contacting my bank and making sure everything is OK, as well as tax attorneys in my state and CPA's and try to make sure I'm doing everything right.

Your bank and the feds are the only ones you need to worry about, so as long as you get in touch with your bank and tax attorneys you should be fine. There's not much else you can do anyways.

Coinbase themselves probably won't care much about the size of your transactions, as long as you have taken care of the required verification steps and your bank account data checks out.
2374  Other / Archival / Re: Too many vulnerability/Hacks on: February 15, 2018, 04:08:46 PM

/thread


Blackhat hackers are finally able to turn security vulnerabilities straight into cash, without having to go through secondary markets by either selling stolen data or the exploits themselves. Questionable security has always been a problem with online businesses, it's only now that in the case of crypto people are actually aware of being hacked because money is missing. No one notices stolen data because the "original" is still there. How many corporate databases do you think got silently stolen and sold on the black market without companies noticing? IT Security is neglected most of the time. The majority of people barely give a fuck about it until they painfully learn that properly securing a server is more than just an academic excercise.

Luckily with Bitcoin itself the security aspect is an inherent property. It's a solid technology, it's just that people need to learn how to handle it properly.
2375  Bitcoin / Bitcoin Discussion / Re: Lighting Network is a BANK'S TRAP? on: February 15, 2018, 02:32:06 PM
There is no need for a debate.  These people won't listen anyway.  [...]  The market will 'vote'.  Has voted.  Let these guys talk all day long. [...]

Funny, I was just thinking the same thing Grin

I've evaluated all the information that is available to me and came to my own conclusion. I'm sure you did the same. Only time will tell which perspective is closest to reality. Enjoy the ride, see you on the other side mate.
2376  Bitcoin / Development & Technical Discussion / Re: Lightning Network & bigger amounts? on: February 15, 2018, 10:41:39 AM
Yes you are absolutely spot on that there will be large hubs. Most estimates say there will be about 2-3 such hubs that will form.
This is a general critic of the lightning network being centralized.

Define "most"? Source?


[...]

Lightning is best suited for making multiple "repeat payments". It is unlikely that you have multiple HUGE payments.
Setting up a channel and closing it requires 2 on chain transactions. If you make only one payment in the channel, you'd be paying the transaction fees twice (once for the setting up and one for closing). You could rather make an onchain transfer, paying the transaction fees only once.

What do you mean by "best suited for making multiple repeat payments"? The same channel can be used to send transactions to any number of market participants, not just the ones that you deal with on a regular basis. In other words, LN is suited for any form of day-to-day payments. If day-to-day payments aren't your thing, ie. you don't plan on transacting BTC on a regular basis, then you are not using BTC as a payment network anyway and are only marginally affected by transaction fees in the first place.
2377  Bitcoin / Bitcoin Discussion / Re: Lighting Network is a BANK'S TRAP? on: February 15, 2018, 09:49:11 AM
But I was watching today some videos trying to understand the lighting network better, and I came across this one - and the guy makes a point, that lighting network has to be pre-funded with the money. And he makes a conclusion, that it is somehow related to banks.
What do you guys think?

Your BTC wallet has to be pre-funded with money before you are able to use it. Same with your ETH and LTC wallet. So what's the argument?


LN is a giant raging disaster.

Please expand on how LN is turning out to be disaster?


Scaling is not easy.

Indeed. Not as easy as simply increasing the block size, for example.


But Blockstream tries to takeover Bitcoin and act like it is the Daddy.  That is bank mentality. Sure to fail.  100% not going to work.

Blockstream is only one of multiple development teams working on LN. LN is decentralized both in regards of how transactions are handled and how it is developed. Using LN is and will remain optional. It does not lock out other scaling solutions that may turn up in the future.


Ethereum is trying other scaling solutions.

Payment channels being one of them. Nonetheless as mentioned above, LN does not prevent other scaling solutions to be deployed in the future, instead of LN.


Why do you think all the alts are rising so much over the last year?

FOMO, greed and misinformation.


Because nobody believes in the Blockstream approach to hostile takeover of Bitcoin.

How is multiple development teams working on an optional scaling solution a hostile takeover of Bitcoin?
2378  Bitcoin / Development & Technical Discussion / Re: Lightning Network & bigger amounts? on: February 15, 2018, 08:22:50 AM
People are waiting for this, wondering how long it takes for lighting network to be done and can be implemented?
I always thought whether it will going through the drama such as when segwit has not been activated or it will just apply to the main network.
[...]

What do you mean? In its basic form Lightning Network has already been implemented and deployed on main net without much drama. It's just that right now the network is still only used by enthusiasts and early adopters, being not quite ready for day-to-day usage yet.

This what I mean:
"Currently, there is a Proof-of-Concept implementation running on the Bitcoin Testnet. So everybody can try out the Lightning Network and even set up their own Lightning Node. A date when the Lightning Network will be launched on the Bitcoin mainnet is not yet set, but chances are high it will be sometime this year."
Read here
It's not on main net, still on testnet.
And this is the first one: Read here

I mean; Lightning network still not being used massively as you said: still only used by enthusiasts and early adopters
Even for segwit which has been implemented over 6 months is not really used by exchanges or most people in bitcoin-world.
in short, I'm waiting for an official announcement about everyone can transact using Lightning network easily, in most case, people transact in exchanges.

Lightning Network being used by only a small group of people is not the same as Lightning Network being only deployed on testnet.

There's currently 700 nodes connected via 1700 channels on mainnet. A lot has happened since the Bitrefill transaction.

https://lnmainnet.gaben.win/


The anonymous VPN provider Torguard has been accepting mainnet Lightning Network transaction for a couple of weeks now:

https://dowbit.com/torguard-lightning-payments/


I'm not sure if there will ever be such a thing as an "official announcement". A real-life rollout is progressively taking place already though.

2379  Bitcoin / Legal / Re: KYC requirement from ICOs will open up a whole news area of scam on: February 14, 2018, 09:09:33 PM
The solution to the first problem is something that the market -- ie. ICO investors -- need to enforce. If people would actually demand proper documentation instead of simply throwing money at every shiny new project they see this problem wouldn't exist. No documentation, no funding. It could be easy as that, but fact of the matter is that most people don't really care all that much as long as there's a quick buck to be made.

The second problem is definitely the most interesting one. Given how much KYC data is being shuffled around in this space, I wouldn't be surprised if at one point gathering exploitable passport selfies becomes a core part of scammy ICO-based "businesses". I'm pretty sure most ICOs already break a bunch EU regulations concerning the gathering, handling and storing of personal data. But of course preventing possible attempts at small scale money laundering is much more important than protecting the personal data of private citizens. In practice I guess the solution is pretty much the same as with the first problem -- stop throwing money at questionable ICOs.

The third problem is simply scammy behaviour and indeed just needs honest up-front communication.
2380  Bitcoin / Development & Technical Discussion / Re: Bad Code Has Lost $500M of Cryptocurrency in Under a Year on: February 14, 2018, 08:21:35 PM
This is why I am drooling over the concept of Simplicity (PDF) for Bitcoin.  A powerful smart-contracts DSL with formally verified properties, which is designed to support writing of formally verifiable contracts, is exactly what we need.

Oh yes. Solutions such as Simplicity are exactly why I give Bitcoin a better chance of survival than most of the alts. The academic work being done around Bitcoin is amazing. It might not be as flashy as the snakeoil that some of the alts are selling, but at least it has substance.


Not just that.
Bitgrail Shitgrail had 2 more bugs:

1) You were able to withdraw twice the amount when following this procedure:
  • Request withdrawals
  • Wait for email confirmation; Don't confirm.
  • Request a second withdrawal (same amount)
  • Wait for email confirmation; Click on the link and confirm
  • Success. You just received 2 withdrawals

2) You were able to withdraw an amount you didn't have as balance:
  • Request a withdrawal
  • Realize the check for the maximum amount happens client-side instead of server-side
  • Manipulate the javascript (yes, javascript.. WTF)
  • Profit. You just withdrew a way bigger amount, leaving your balance on Bitgrail Shitgrail at a negative amount

Those bugs don't happen by accident.
Such bugs appear when the coder has zero (really: ZERO) knowledge.

[...]

That reads less like bug descriptions and more like a checklist of what not to do. The second point -- not entrusting critical verification to client-side code -- is literally one of the first things that gets drummed into your head when learning web development.
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