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8341  Local / Português (Portuguese) / Re: 1º Concurso Luso-Brasileiro de Artes do Bitcointalk (+PRÊMIOS!) on: May 08, 2020, 06:08:58 PM
Te digo que se isso acontecesse lá nos boards gringos, você ia 100% levar no mínimo um feedback neutral e no máximo vários negativos

Ainda pode levar se voce entrar em uma campanha concorrida. O pessoal aqui nao tem dó nem piedade pra te queimar e pegarem sua vaga.

Sugiro fortemente que voce  nunca mais fale nesse assunto kkkk
8342  Bitcoin / Electrum / Re: Just paid 6$ to move $230. Is that acceptable to you ? on: May 08, 2020, 06:06:02 PM
Quite some time ago they added the features to (almost) completely adjust the fee.
Even though you can't directly type the fee you want to use, the slider lets you always choose 1 sat/B.

It is divided into 4 groups (low-priority, economy, normal, high-priority), of which each group has 10-12 fees to choose from.
That's a bit inconvenient that you can't choose the exact fee, but i guess its good enough for not that techy people.

Most of those wallets that have those low-high priority overprice fees.
I think lowpriority should always be 1-2sat/byte. However, I have seen those wallets (even coinomi, which is a little better than most) setting like 20-30 sat/byte a low priority transaction. Even if the network is highly congested a 1 sat/byte transaction will be confirmed eventually.

Just as easy as it is to slide from low to high, a no techy person can slide from 1 to 100 sat/byte.
8343  Other / Beginners & Help / Re: What is the minimum fee for a transaction? on: May 08, 2020, 05:59:14 PM
Note: sending '1 input - 1 output transaction' are pretty uncommon unless you have a UTXO with the exact balance (+few satoshi more) to be sent.
Otherwise you'll be sending all of that UTXO's amount (minus the fee) or send the desired amount but use the excess as fee.

They are not very uncommon, at least for me. I made some in my life, especially when I used a lot of exchanges, when I was buying and selling bitcoin.

A few times I have dumped all BTC from some wallet to an exchange address, or just to another wallet. In this case it would be more than 1 input but only 1 output.
8344  Economy / Gambling discussion / Re: Why there are no Stable coin gambling sites? on: May 08, 2020, 02:29:16 PM
I am not an expert on this field, but probably because most of casinos can't operate with fiat due legislation and they are "forced" to use crypto currency. Legally speaking Stable coins have a TOS (Terms of Service) and probably gambling isn't an usage that they don't allow.

This was the first thing I tought as well.

However, usdt and others are not really fiat, si there must be some other reason...I would certainly prefer to gamble with btc, just because holding btc is a gamble by itself
8345  Bitcoin / Bitcoin Discussion / Re: live preview of current blockchains in Bitcoin Network? on: May 08, 2020, 02:24:35 PM
Thanks for your response.
AYK there are times when SPV mining or Selfish mning happens & some pools/miners mine empty blocks only sending block reward to their address. In such situations they don't reveal their mind blocks making a secret chain until creating a longer chain thus dropping other candidate chains after a while.

I was wondering if there is a way to watch every candidate chain being created to see which chains & which blocks were mined through a selfish style. I know its hard to address this kind of attack using current protocol state, but may be there is a way to find some solution by watching/logging & analyzing pools/miners behaviors in the past.

I don't think that mining an empty block can be considered an attack, neither selfish.
The miner usually just was luck and found the nonce before updating mempool data, or it may be even empty if the block is too fast. It is a run and a competition...
And imo this has nothing to do with orphan blocks (temporary side chains).

And we don't see an orphan block for years, according to blockchain.com data
8346  Economy / Digital goods / Re: Selling custom BITCOIN addresses on: May 07, 2020, 06:15:55 PM
The reason why I am charging for bigger addresses, it requires a lot of CPU power to generate, the servers I have are costly and it's only fair to earn something right?
I apologize if I came across looking bad.

This is not the best way to sell your CPU power.

You can look to join pools to generate vanity addresses, or even mining.

What you are proposing here will certainly look bad because you have no reputation. You are a newbie with 0 merits, which is highly suspicious. Many users like you came here offering services just to steal people' money.

If you want to do this, you need to build a reputation here first.
8347  Other / Beginners & Help / Re: How can anyone block coins or transaction in blockchain ?! on: May 07, 2020, 02:55:37 PM
In Bitcoin network an address or output or coins or whatever cannot be blocked.
I don't know what shitcoin you are using, maybe you could tell us more....... But it is highly unlikely that your coins are "blocked" by this hacker.
8348  Economy / Digital goods / Re: Selling custom BITCOIN addresses on: May 07, 2020, 01:15:40 PM
I'll provide you with a set up on ubuntu and open source files
Open source makes no different, as you are selling the private key ofc you know it.

You can just withdrawal the funds from any address you sell at any moment.
8349  Bitcoin / Development & Technical Discussion / Re: Would this be a realistic BIP? on: May 07, 2020, 01:01:10 PM

So the idea is to submit a contract with in parameters: A1:owner public address, RTL:relative time lock(probably in days) and A2:failover address (could be third party escrow or another owner address not related to the same seed)
...

I hope you understand what I have in mind: people often write there hardware wallets mnemonic on paper and it could be compromised without they know it, adding a relative time lock will alow owner to secure there funds to another secure place once it has been compromised.

Of course I suppose it have to be part of hardfork since all the network has to implement it to be functional.

Thanks for reading, hope it wasn't so silly idea Wink

I don't think the idea is silly. The thing is, you are suggesting people to store 2 seeds instead of one with this failover address.
If people lack responsibility to store one seed, they will just store 2 seeds together.

You can split your seed, use a mnemonic phrase, etc to increase security.
8350  Other / Beginners & Help / Re: What is the minimum fee for a transaction? on: May 07, 2020, 12:43:57 PM
What will be the minimum required fee for a transaction in bitcoin? Imagine, we have 1 input, 1 output (paying to myself) and the fee is 1 sat/byte. Then how much total fee we have to pay? Does this vary when it is segwit and legacy? If so, I am using native segwit address for both input and output.

This website is very good to calculate fees:




I made last week a transaction with 1 sat byte from a native segwit to a native segwit, 1 input and 2 output, and the price was less than 0.01 usd at the time. And it confirmed pretty fast, in about 3 hours.

Personally, I always tell people to use 1 sat byte in transaction. It is cheap and gets confirmed in less than a day.
8351  Bitcoin / Electrum / Re: Just paid 6$ to move $230. Is that acceptable to you ? on: May 07, 2020, 11:49:37 AM
If I haven't made any mistakes, then we're fucked. This whole cryptocurrency thing is going nowhere, this is absolutely outrageous.


Have a nice day.





You made mistakes. You didnt searched for the minimum information about how to pay low fees in a transaction.
I transferred btc last week for less than 0.01 usd, because I wasn't in a hurry.
You looks like to transferring coin to yourself in another wallet , right? Why did you make an urgent transaction?
You could have set it to 1 sat per byte and it would be ridiculously cheap... but you paid 93 sat per byte.
8352  Economy / Investor-based games / Re: Ever curious about investing with high daily rates? on: May 07, 2020, 04:47:41 AM
4% per day is insane, how is this sustainable OP?
It is not sustainable, good websites pay that per year.

He will just run away with the money of everyone who invested in his plataform. Stay away, obvious scam.
8353  Bitcoin / Bitcoin Discussion / Re: live preview of current blockchains in Bitcoin Network? on: May 07, 2020, 04:24:18 AM
There are not multiple chains.
Those involuntary forks you are talking about happen when 2 miners find a block about the same time. But in the next block the situation is solved



Quote
Fork, Accidental Fork
Search
This definition comes from the technical glossary.

Definition
When two or more blocks have the same block height, forking the block chain. Typically occurs when two or more miners find blocks at nearly the same time. Can also happen as part of an attack.
https://bitcoin.org/en/glossary/fork


You can track them here
https://www.blockchain.com/charts/n-orphaned-blocks

very few in the last years
8354  Economy / Service Discussion / Re: NEED an exchange with USDT !!! on: May 07, 2020, 03:59:27 AM
I would certainly stick to binance. Imo, the best exchange in the world... I don't know for how long, but so far so good.

Bittrex and Kucoin and nice as well.
8355  Bitcoin / Project Development / Re: Project Covid-19 : An approach to support the Bitcoin community on: May 07, 2020, 03:45:54 AM
Your idea is very good.
I hope we can find someone who really needs it. It would be amazing if it could be an anonymous person to receive... I think many established forum members may need, but they are afraid their reputation could be damaged, like "tainted" as a beggar or something.

Maybe if the user could prove his situation jsut for you, in private, it would be better.
8356  Alternate cryptocurrencies / Altcoin Discussion / Re: Help me understand TrustWallet. on: May 06, 2020, 03:03:55 AM
Now it becomes much more used as a personal wallet than an exchange interface. Some don't even know that it belongs to binance.

And I can see their logo everywhere in trust wallet website.



I saw a link about it:
https://binance.zendesk.com/hc/en-us/articles/360010790652
Quote
Binance Acquires Trust Wallet - A Secure Mobile Crypto Wallet
2 years ago
2018/07/31

Fellow Binancians,

Binance has completed the acquisition of Trust Wallet, a secure and intuitive mobile wallet. Through this acquisition, Binance aims to provide a better service and to enhance the safety for all of our users.


About what you said at OP:
I read somewhere that TrustWallet user has access to the private keys of each coin supported by the wallet.
This doesn't happen. Binance or Trust wallet has not access to the keys, which are only stored locally according to their website.
8357  Local / Português (Portuguese) / Re: CAMPANHAS DE ASSINATURAS ATUALIZADAS on: May 06, 2020, 03:00:48 AM
|YOLOdice|Full, Senior|2|

Essa já está cheia de novo, o manager escolheu 2 hoje.
8358  Alternate cryptocurrencies / Altcoin Discussion / Re: Help me understand TrustWallet. on: May 05, 2020, 11:41:34 PM
Binance is controlling everything.
And they are good in everything they do. On the other hand, this ecosystem  is basically scammers-only... so if someone honest, serious and competent shows up, like Zhao, he really emerge.
8359  Bitcoin / Bitcoin Discussion / Re: CEO of Bitcoin according to Google is Roger Ver. WTF Google?! on: May 05, 2020, 10:16:04 PM
It's not really a wrong answer, but rather not suitable because Google doesn't make the difference correctly between Bitcoin and bitcoin.com.

Bitcoin should at least be linked to Bitcoin.org...

But the problem is in Wikipedia. I think we should report it


WTF Google, is there a way to report this sh!t?

We need to report that bitcoin.com is not a reliable source, but bitcoin.org

8360  Bitcoin / Project Development / Re: I am developing a secure hardware wallet solution on: May 05, 2020, 08:39:30 PM
Hello,
I am developing a secure hardware wallet solution, can anyone tell how to bring it out to the market I'm talking 2-3 month from now.

Well, you should already have a website by now if you plan launching in 2 weeks.

-What is it name?
-How does it looks?
-How much it costs?
-You need to be in social media: Bitcoin, Reddit, Twitter, at least.
- You can make some advertising in Bitcointalk through a signature campaign, or google ads or something like that.
- You can give some members of bitcoin community some hardware wallets so they can review them for you (bitcointalk members, article writers, news websites, etc)
-Plan to launch press releases.


TL;DR: you need money.
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