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4221  Local / Türkçe (Turkish) / Re: Bitcoin Private Keyler Ne kadar Güvende? on: December 09, 2018, 07:52:54 PM
Daha önce private key hakkında benzer konunun tartışıldığı bir başlıkta bir yazı yazdım. Merak ve endişeleri gidermek adına buraya aynen ekliyorum.


"Burada yapılan iş sıradan bir Bitcoin adresi yaratmak ve Block Explorer'lar aracılığı ile bakiye sorgulamak. Buna benzer yüzlerce proje bulunuyor. En bilineni "Large Bitcoin Collider" ve istatistiklerini buradan inceleyebilirsiniz:

https://lbc.cryptoguru.org/stats

Bunun dışında Plutus oldukça bilinen bir yöntem. Aynı işlemi yalnız başınıza yapmanızı sağlıyor. Proje açık kaynak kodlu sizlerde inceleyebilirsiniz. Kod temel olarak adres yaratma ve bu adresi kontrol etmek üzerine kurulu olduğu iç biraz deneyimi olanlar kendileri de kodlayabilir benzer bir programı. Plutus'u merak edenler buradan inceleyebilirler:

https://github.com/Isaacdelly/Plutus

Son olarak böyle bir deneme yapmaya başlamadan önce bir hatırlatma yapmak istiyorum sizlere. İki adresin çakışma ihtimali yaklaşık 2¹⁶⁰'da 1. Bu sayının büyüklüğünü açıklayan güzel bir yöntem var.

Saniyede 1 milyar deneme(2³⁰) yapıyor olsaydınız, kesin bir çakışma için 2¹³⁰ saniyeye ihtiyacınız olurdu.
Bu işlemi aynı anda 1 milyar makina ile yapabiliyor olsaydınız ihtiyacınız olan süreyi 2¹⁰⁰ 'e indirebilirdiniz.
Ayrıca sizin kadar zengin ve manyak 1 milyar yatırımcı daha bulabilseydiniz süreyi daha da azaltarak 2⁷⁰ 'e çekebilirdiniz.

Bu durumda,
Bir yıl içerisinde 2²⁵ saniye olduğunu göz önüne alırsak, 2⁴⁵ yıla ihtiyacınız olurdu.

Hala aranızda "Ama, ya olursa...?" diye düşünenler varsa şunu da ekleyeyim; Evrenimizin yaşı 2³⁴ yıl.


İlgilenen arkadaşlar için bu konu ile bağlantılı iki yazımı paylaşıyorum.
https://medium.com/@ahmetseyhan/sha-256-kriptografik-hash-algoritmas%C4%B1-294d13f0ca5d
https://medium.com/@ahmetseyhan/bitcoin-matemati%C4%9Fi-ve-bloklar%C4%B1n-dili-6cc6fa5d0ae2
"

Yani yazılarınızla teorileriniz çok mantıklı ve makul. Ama benimde bir çok insanında aklında olan şey aslında bugünün şartları değil. Yani birisi yarın deneyerek benim private key'imi kıramaz bunu bende biliyorum.

Ama nasıl ki, Bitcoin madenciliğinde zorluk seviyesi her geçen gün arttığı için daha iyi cihazlar madencilik yapıyor, aynı şekilde hash gücü arttıkça Bilgisayarların p. key arama hızı da artabilir. Tamamen sallıyorum ama 10 yıl sonra pc ler daha güçlü olduğunda tek başına P.key ile cüzdan güvenliği ne kadar yeterli olur emin değilim.
4222  Bitcoin / Bitcoin Discussion / Re: How many people have btc? on: December 08, 2018, 08:41:21 AM
I think the important thing is not how many people own Bitcoin. There is a Gini coefficient in the economy. This coefficient shows the justice in income distribution in a country.
We could do the same thing about Bitcoin. What is the distribution of bitcoin number? What is important is the percentage distribution of the number found in Bitcoin wallets.

It is not the same thing that I know. But I think, If Bitcoin distribution goes well, it would be better for all of us and Bitcoin's future.
4223  Bitcoin / Hardware wallets / Re: hardware wallet on: December 08, 2018, 08:33:49 AM
Only three hardware wallets that I know.

  • Ledger nano s
  • Trezor
  • Keepkey

But base on: https://bitcoin.org/en/wallets/hardware/

There's also Digital Bitbox.

I'm using Ledger nano s and I prefer using it, you just missed it's black friday sale but its still on 30% off  for their winter sale holidays special offer.



I always scare to use this wallet and I don't why. But actually it seems securest way of holding cryptocurrencies.

I saw a hardware wallet in blockchain.com. It name is Lockbox. Can you hear it or know it? It is written that "secure checkcout by Ledger. Is it a product of Ledger?
4224  Bitcoin / Bitcoin Discussion / Re: Last block... 22 minutes ago... ? on: December 08, 2018, 08:29:35 AM
Sometimes, even when mining power is at its highest level, such situations are taking place. There's nothing to panic. Yes, the number of miners may be reduced. But the number of transactions decreased. Technically, the number of pending transactions is not very different. This will move in free market conditions. When demand increases, the price will increase and then the number of miners will increase.
4225  Economy / Speculation / Re: CME Bitcoin futures started bear market - Federal Reserve on: December 05, 2018, 07:59:22 AM
I agree that future contracts start was not a good thing for BTC. At the first look, we thought it is ok! But we can see now crystal clear. It was not!

I think we need serious regulation. Regulation about trade, loan and interest. But this regulation also should let the market be decentralized. It is not easy, I can understand but we have to.
4226  Economy / Speculation / Re: Don't sell your bitcoin expert warn. on: December 05, 2018, 07:55:21 AM
There is a saying in my country. Someone is talking who has a mouth! Mean, mouth is enough for talking. But reliable words come out from clever people. So buy or sell but never trust like this "experts"!!!
4227  Bitcoin / Bitcoin Discussion / Re: G20 wants crypto Taxation? on: December 04, 2018, 12:37:46 PM
What i like about crypto is mainly because of no taxes and now this? Not only taxation but also regulation.

In fact, paying tax is a good thing, although at first glance it may seem like a bad thing. This means that states are now officially recognizing crypto money.
4228  Bitcoin / Bitcoin Discussion / Re: The Solution to Raise BTC's Value on: December 04, 2018, 12:36:06 PM
I just wish it was that easy. Bitcoin is in the hands of many different people. Also a stock exchange where manipulation is frequently used
4229  Bitcoin / Bitcoin Discussion / Re: Good news for those who love Bitcoin on: December 04, 2018, 11:42:36 AM
Bitcoin prices are down sharply, but there are still a lot of people interested in bitcoin. Evidence that the number of  people discussing bitcoin on Reddit has increased dramatically. TheMos moderator is also mentioned in this article. Has anyone explained to me about Themos's information, he's simply the bitcoin community manager on the big forums: Bitcoin talk, Reddit..  Or did he participate in Bitcoin's network development department, like Vitalik Buterin of Ethereum?


https://cointelegraph.com/news/subreddit-r-bitcoin-hits-one-million-subscriber-milestone

Vitalik has to work primarily for Ethereum. There are different opinions within the Bitcoin network. Unfortunately, the divisions in the mining network damaged the course of the network.

Both coins have aspects to be developed. A few important events on the side of Ethereum will take place in the near future. There's nothing I know for bitcoin.
4230  Alternate cryptocurrencies / Altcoin Discussion / Re: I need help, actually a little guidance. on: December 03, 2018, 09:44:12 AM
With there being so many options out there for obtaining cryptocurrency what do you think is the best? Would it be Cloud mining, trading with your own money, just buying and holding, spending the 2,000 plus dollars and buying a mining rig, I'm completely ignorant when it comes to these things and would love to know some insight from people who deal with this constantly. Thank you very much

Many cloud mining companies have made their customers suffer. They're obviously not very reliable. Nevertheless, those who are really successful can arise.
4231  Alternate cryptocurrencies / Altcoin Discussion / Re: Should ICOs be regulated on: December 03, 2018, 09:42:11 AM
There are two important points. Regulations for decentralized projects can be damaging. But these regulations also protect investors.
4232  Alternate cryptocurrencies / Altcoin Discussion / Re: How does a cryptocurrency gain followers? on: December 03, 2018, 09:40:50 AM
In other words, what makes you decide to follow a project?

It is about expectation. Expectation of profit. No one supports nothing without any profit. Good projects easily gain supporters. There are a lot sample this. For example NPXS. Everyone is expecting profit from Pundix token. And so many people is supporting.
4233  Alternate cryptocurrencies / Altcoin Discussion / Re: Someone has to stop this "forks" shit! on: December 02, 2018, 03:35:12 PM
I see the fork as a form of Ego, or way to get rich and selfish interest with no means , this crypto is turning to shit with all sort of fork , I wonder which fork will come next when this finish or if they have nothing again to say .

 I think your comment fully true. This people wants earn money and popularity. There is nothing to do that. We don't need any second Bitcoin, Ethereum, or any other coins. If we need anything on this market, it is only good and creative one. If this people wants to accomplish something, they can try to create good projects like Ethereum! Vitalik didn't steal someones idea. He created a great coin after Bitcoin. We can discuss and criticise  people who try to do something. For example everyone talking about Justin Sun and criticise him. But he didn't copy or fork any coin. He is trying to make a different project. We have to admire him in this point.
4234  Alternate cryptocurrencies / Speculation (Altcoins) / Re: Do you believe this is the highest bottom ? on: December 02, 2018, 03:27:20 PM
As per Charts , I believe this is the highest bottom we are touching. if we see 7 days charts there is a grow.  Most are touching now 90-95% decrements.

how about your views ?
 

It would be, yes. But what do you think after this point? Which charts will follow this one? I think we can see highest bottom fully soon.
4235  Local / Alternatif Kripto-Paralar / Re: Herşey planın bir parçası oyuna gelme ! on: November 28, 2018, 08:34:37 AM
Paranın olduğu yerde fiyat müdahalesi, yönlendirmesi ve spekülasyona dayalı hareketler her zaman olacaktır. Bu kesin. Oyun diye bakmamak lazım aslında herkesin amacı aynı, cebindeki parayı arttırmak. Beğenelim ya da beğenmeyelim basit satış veya alış ile fiyatın değiştirilmesi bence çok normal. Tabi ki hile yolu işin içine girince her şey değişir.
4236  Local / Alternatif Kripto-Paralar / Re: Stellar üzerinden 25$ anında çekim! ( ONAYLI HESAPLAR ) on: November 28, 2018, 08:32:36 AM
Ben ilk duyduğum anda kayıt oldum ve halen gelen giden yok. Neye göre gönderdiklerini bilmiyorum. Bir kaç yerde herkese gönderileceği garanti değil falan yazılmış ama KYC olana göndereceklerini söylüyorlar. Sonuçta bu bir airdrop ve bende gelecektir diye tahmin ediyorum. Zaten iddiaları 125 milyon $ gibi yüksek rakam. Bunu kolay kolay dolduramazlar.
4237  Bitcoin / Bitcoin Discussion / Re: Ohio accepts Bitcoin! on: November 26, 2018, 07:07:55 PM
Hi guys,
I saw this article: https://cointelegraph.com/news/ohio-appears-to-be-first-us-state-to-accept-bitcoin-for-taxes-wsj-report
which is about payments allowed in the US state, Ohio, that allows tax payments with bitcoin.
It's really cool that everyday more and more states/countries are starting to allow cypto payments. There is a real potential here i guess.

I think that in the future we might or we should have also some sort of marketplace that allows buying/selling from bananas to cars with cryptocurrencies. Won't that be cool?


In Switzerland, BTC accepted to pay taxes like this if I remember correctly. I read about a year ago. But a state in the United States is also very good.
4238  Alternate cryptocurrencies / Speculation (Altcoins) / Re: ETH double digits on: November 25, 2018, 03:00:08 PM
What do you think will ETH fall to double digits? And if it falls would you buy some?

Bitcoin crashes affect all coins but mostly Ethereum. Ethereum network has to be developed. But Buterin doesn't do anything in these days. Market cycle running harshly. We desperately need Ethereum's breakout.
4239  Economy / Speculation / Re: Short term forecast on: November 25, 2018, 02:57:55 PM
Unfortunately, the expectation was always below $ 4000. And after weeks of price decline, it is now difficult to estimate the price. I don't have a vision for myself right now.
4240  Bitcoin / Bitcoin Discussion / Re: Google trend for BTC is dead is on the rise. Think differently this time on: November 25, 2018, 02:53:10 PM
Google search's doesn't show us a anything, I guess. It is affected from news. News getting increasing when Bitcoin price moving fastly. Mean, Bitcoin price getting down in this month. So we can see a Bitcoin news in everywhere. So people starts to search it what happen this time. This is my opinion.
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