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4381  Economy / Reputation / Re: Issue with neg trust rating - This must hit Lauda, i need help! on: April 21, 2019, 12:48:00 AM
So... in summary:

Alt account == "Wife's Account" == Trust farming with "loans" + probable ban evasion?

Is that about right or did I miss something?
4382  Bitcoin / Bitcoin Technical Support / Re: Recovery Non Spendable BTC on: April 20, 2019, 11:49:23 PM
If the new wallet that was created when you just installed multibit has a password setup (by default, they don't), you need to enter it so the keys can be imported...

However, if the password you are trying to use to unlock the .key file is not working (you get: "Private keys unlock failed" message)... then it doesn't matter if the new wallet has a password or not... As your password for the keyfile is incorrect and the .key file cannot be decrypted. Undecided

Unless you can unlock that .key file, you can't access your private keys from it.

You can always try using "file -> open wallet" and see if the application will read one of the other backup files that you have (ie. Not the .key file)... One of them *might* be a copy of your old wallet file.
4383  Bitcoin / Electrum / Re: are all severs displayed at the electrum software are safe and trusted? on: April 20, 2019, 11:22:28 PM
But the possibility of phishing is eliminated with latest 3.3.4 version
This is true.


Quote
and as OmegaStarScream say it is quite safe to say that all servers are safe for use.
This depends on your definition of "safe"... While the phishing possibility has been removed in the latest version of the client software, the servers can still do undesirable things (tracking IPs, tracking addresses/transactions, blocking outbound transactions, returning erroneous transaction data etc).


Quote
What is true in your statement that any bad server can not make any damage without users thoughtless actions.
Again, depends on your definition of "damage"... A bad server could be tracking your IP, your addresses and all your transactions... Building up a profile etc.

So, while none of these things may cause a direct loss of coins (as opposed to theft of seed mnemonics or private keys or  transactions manipulation etc like a bad client can)... It's still annoying and frustrating and has the potential to leak personal info... Which can "damage" your privacy.

But yes... Your "coins" should be safe, regardless of what server you end up connected to, as long as you don't install any bad clients!
4384  Economy / Service Discussion / Re: Withdraw from Arcbit on: April 20, 2019, 11:00:52 PM
Seems arcbit is now "defunct"... App removed from app stores and website has gone. Highly likely this means the backend servers or API that it was utilising are no longer operational either.

Did that wallet have a 12 word seed mnemonic/recovery phrase? Or provide the option to export your private keys? Huh

Seems like moving to another wallet app using one of those two methods might be your best option to access your funds at this point.
4385  Economy / Service Announcements / Re: [ANN] ChipMixer.com - Bitcoin mixer / Bitcoin tumbler - mixing reinvented on: April 20, 2019, 10:40:39 PM
Very nifty scripts... Hopefully they help new ChipMixer users understand how their deposits will be broken down into the various chip sizes and possibly avoid some of the confusion that often seems to arise from ChipMixer's somewhat unique system.



~snip giant wall of text~
Well done guys!!!!! Wink Thanks!!!
In other news... Was it entirely necessary to requote the entire posts including all the code, just to say thanks?? Huh Roll Eyes

Someone with 696 posts ought to have learnt how to quote (and edit quotes) properly by now! Tongue
4386  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core, can’t send my BTC (not in memory pool) on: April 20, 2019, 10:15:54 PM
No... It would appear the addresses posted DID receive dust (a lot of 0.00001000 btc UTXOs back in 2015)...

1NwUfBG7kKNKjtoTbj8557Ty8MYiGXYupV
1NzGg6KKApR6M5SKSWGjfScsokVZK68yEc
1P2SjcwEJ1hrgWPjdFRfNiDvEpq6DJ8S8A
1P5JGtjq65L7mcW5B2ESHe8RCqQfW5KNE6
1P5QtTVmTYyPwqGU8BHJxQyndbgQ3gFzK1

However, they were all effectively "burned" in "null data" transactions that used the 0.00001000 btc as a transaction fee.

An example is decoded here: https://api.blockcypher.com/v1/btc/main/txs/99967491afcdddb7e1b695ec19f14cd4093d8eb4304de7f120209f392a5c9ab6?limit=50&includeHex=true

You can see the null data output:
Quote
 "outputs": [
    {
      "value": 0,
      "script": "6a",
      "addresses": null,
      "script_type": "null-data"
    }
  ]
Outputs like this are able to be "ignored" by a node... That is to say, they don't get stored in the UTXO set.

Normally, you would use this for arbitrary "data storage"... But nothing is being stored here, the "script" is simply "6a" (aka OP_RETURN). So the dust is just being burned. Maybe to reduce the dust clutter in the UTXO set... Or maybe just piss off the wallet owner and destroy all their coins? Huh

I'd say that unless the "real" owner (or at least the person who created these null transactions) comes forward... We'll likely never know.
4387  Economy / Reputation / Re: [FABLE] The Resurrection of YoBit on: April 20, 2019, 09:45:42 PM
Damn... Looks like I need to pay more attention... I used YoBit a loooooong time ago when I was selling some coins as they had the lowest fees at the time... I never had any issues with withdrawals etc.

However, it looks like they have totally sold out and are just doing whatever they can to make some $$$... Undecided

It does indeed look like they're just ramping up the advertising to try and capture more fools and part them from their money with these shady "investments" Undecided

I don't see this situation working out well for anybody... Forum looks like it is going to get inundated with 20 post/day "experts"... Participants are likely to get tagged as either spammers or spam promoters... Less educated users might fall for the "scams" being promoted Undecided

At least the campaign is limited to Sr. Member and up... That might make one or two users a bit more cautious as they stand to lose a bit if their account gets banned for spamming... Or tagged... As opposed to newbie/jr throwaway accounts.
4388  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core, can’t send my BTC (not in memory pool) on: April 20, 2019, 09:38:35 AM
If the addresses you have in your wallet show balance and transactions, but those same address have zero transaction history on a Bitcoin block explorer, then that pretty much confirms that nc50lc was correct and you have most probably loaded an altcoin wallet into Bitcoin Core.

You can dump the wallet using PyWallet to see what the addresses are... The address prefix (first characters) should hopefully give you a clue as to the coin type...

Refer:
https://bitcoin.stackexchange.com/questions/19589/how-to-determine-what-type-of-coins-a-wallet-dat-contains

You can also use the "strings" method... Open the .dat in a text editor and look for "names" field. Refer:
https://bitcoin.stackexchange.com/questions/57122/have-a-bunch-of-wallet-dat-files-what-alt-coins-do-they-have-and-may-be-how-mu
4389  Bitcoin / Development & Technical Discussion / Re: size of transaction bitcoin ? on: April 20, 2019, 09:27:12 AM
thanks for reply poya and hcp
so the address like this 1F1tAaz5x1HUXrCNLbtMDqcw6o5GNn4xqX is compros  "uncompressed" P2PKH
You can't actually tell just from an address if it was created from a "compressed" or "uncompressed" public key. This is because the address is an encoding of the hash of the public key. The hashing function used is one way, so there is no way to get from address -> public key...

So, you need to start with the public key... And then check what address is generated from the compressed form and the uncompressed form and compare with the address you have.

Or, if you didn't already have the public key, you could look at a transaction involving spending from that address and you could see if the input script used the compressed or uncompressed public key.
4390  Economy / Reputation / Re: [FABLE] The Resurrection of YoBit on: April 20, 2019, 08:37:58 AM
Just because everyone else seems to have condemned this entire campaign (and all the participants) before it has even really started... But did anyone actually bother to read the campaign ToS?

Quote
★☆★ Rules ★☆★

Poor quality and unconstructive posts will not be tolerated on this campaign. You don't need to write an essay with each post but one word replies in spammy off topic threads or streams of constant half-assed one liners will immediately get you removed. Please just put some effort in to your posts and you'll be fine.

Users with negative feedback from defaulttrust members are no longer permitted on the campaign. If you sign up you will be removed.

Any user who hasn't made a post in over a month will also be removed.

Should we not actually give them a chance to prove themselves? See if they clamp down on the shitposters/spammers... before we start threatening to tag everyone involved? Huh

Don't get me wrong... I'm not here to promote YoBit as the poster boy for campaign management... And chances are high that there will be some shitposters/spammers striving for the 20post/day "target"... But I think YoBit deserves to be given the opportunity to  demonstrate that they are capable of running a "forum friendly" campaign before just shitlisting the campaign and all the participants.
4391  Other / Beginners & Help / Re: How To Start? Looking for suggestions! on: April 20, 2019, 04:47:06 AM
Could anyone recommend what resources are worth visiting in order to get decent knowledge on the tech side of cryptocurrency and mining?
For a "tech side" resource, I'm surprised no one has mentioned the very obvious "Mastering Bitcoin" ebook by Andreas Antonopoulos

Can be obtained free here: https://github.com/bitcoinbook/bitcoinbook
4392  Bitcoin / Development & Technical Discussion / Re: size of transaction bitcoin ? on: April 20, 2019, 04:29:38 AM
if isend to pub address "uncompressed" P2PKH i use this calculate
in*180 + out*34 + 10 plus or minus 'in'
As Pooya has mentioned... No "pub address"... You mean "Pay to Pub key hash" aka "P2PKH".. This version of the formula (inputs*180...) is when you are spending UTXOs belonging to "1-type" aka Legacy addresses that have been created using uncompressed public keys.


Quote
and for pubkey "compressed" P2PKH i use this
in*148 + out*34 + 10 plus or minus 'in'
That formula (input*148) is for "P2PKH" addresses using compressed public keys as they are 32bytes smaller than the original uncompressed public key.


Again, as Pooya has mentioned, the advent of P2SH-P2WPKH and P2WPKH SegWit transactions means these basic formulas for calculating Bitcoin are no longer valid for all transactions...

It is only valid when spending outputs from legacy "1-type" addresses. The correct method for estimating the effective "size" of a SegWit transaction is stated here: https://bitcoincore.org/en/segwit_wallet_dev/#transaction-fee-estimation

Transaction Fee Estimation
  • Instead of transaction size, a new metric is defined, called “virtual size” (vsize)
  • vsize of a transaction equals to 3 times of the size with original serialization, plus the size with new serialization, divide the result by 4 and round up to the next integer. For example, if a transaction is 200 bytes with new serialization, and becomes 99 bytes with marker, flag, and witness removed, the vsize is (99 * 3 + 200) / 4 = 125 with round up.
  • vsize of a non-segwit transaction is simply its size
  • Transaction fee should be estimated by comparing the vsize with other transactions, not the size.
  • Developers should be careful not to make an off-by-4-times mistake in fee estimation.
4393  Bitcoin / Electrum / Re: Need Help... Electrum to Electrum transfer and BTC gone on: April 20, 2019, 12:09:46 AM
In the "other" Electrum wallet (is it on a different device?) that you believe you generated the receive address from... If you use "File -> Open", how many files are displayed in the open file dialog window?

Electrum allows you to have multiple wallet files, so if you see more than one file displayed, it might be that you have simply used an address from a different wallet file.

Try opening each file shown to see if you can locate the address/coins.
4394  Bitcoin / Electrum / Re: Understanding Electrum on: April 19, 2019, 10:28:12 PM
My next dilemma would be about those mnemonic codes. I have three of them I am not sure what they belong to. One of them is for sure my Electrum wallet, the other two I have no idea, probably just from online wallets/exchanges I created in the last few days. They are empty for sure but they must belong to some websites.

Is there perhaps a way to tell my electrum wallet to regenerate those 12 words so I can match them to my list and see which one is which?
To answer this specific question... Yes, you can tell which one is the Electrum one.

Open Electrum and use the "Wallet -> Seed" menu option. If you have a password set, you'll be prompted to enter it... Then your 12 word seed mnemonic will be shown to you.

That way you can be confident that you have the correct 12 words safely written down!
4395  Bitcoin / Electrum / Re: Electrum mobile App - Gap limit on: April 19, 2019, 10:21:05 PM
The short answer is that you can't.

The longer answer would be that you'd have to modify the source code to change the default gap limit and then compile the APK yourself.

The mobile version of Electrum is missing quite a lot of the features that are in the desktop versions... The "console" being one of these features.

It should be considered as more of a companion app that provides some basic wallet features rather than a "full" version of Electrum.
4396  Bitcoin / Wallet software / Re: Best Linux Wallet 2019 on: April 19, 2019, 09:55:32 PM
Why not just use the Linux "app image" for Electrum, available on the download page? Huh https://electrum.org/#download

It is a self contained package that has all the necessary dependencies included... Avoids a lot of dicking around trying to get the various versions of Python and libraries playing nicely together.

4397  Bitcoin / Wallet software / Re: Exodus Mobile on: April 19, 2019, 09:47:38 PM
Doesn't seem to stop the legions of shitcoin™ users who "love it" because it enables them to store all their shitcoins in one easy location Roll Eyes

I downloaded the original exodus when it was first released... Then queried the Devs as to why there was no way to backup your wallet until after you made your first deposit!!?!

Like, it's one of the first things I do with any new wallet... Create wallet, create backup, test backup to confirm it works properly.

Not being able to do that until after you have commited funds is asking for trouble!

Also, queried lack of fee customisation.

I got some bullshit wishy-washy answers... Deleted the wallet and have never looked at it since.

TryNinja's comments indicate that they might have since changed the wallet so you can generate a backup before finding the wallet... Can anyone else confirm this?
4398  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core, can’t send my BTC (not in memory pool) on: April 19, 2019, 09:23:19 PM
Yes, I tried to use coin control and it writes me that transaction too big (there were 15k bytes).
Correct. There is no way you will be able to consolidate all 90,000 inputs in one transaction. You will need to do it in batches.


Quote
If I make a smaller transaction in writes "not in memory pool" in history.
If it is showing as "not in mempool", this is due to your transaction being refused by upstream nodes as invalid. This could be caused by missing inputs, missing signatures, invalid outputs etc... but generally, you should get a popup with an error code+message when sending "fails".

Do you get any sort of error message when attempting to send the smaller transactions? Huh

Or does it simply create and entry in "history"?

Is your Bitcoin Core fully synced?



Quote
Maybe it makes sense, I put recipient address, which from my Ledger, not generated inside Bitcoin Core.
That shouldn't make any difference... Bitcoin Core is able to send to addresses generated on a Ledger device.
4399  Bitcoin / Bitcoin Technical Support / Re: PLEASE SOMEONE HELP ??? on: April 19, 2019, 09:12:03 PM
I think you misunderstand how most "marketplace" (and exchange) wallets work... Generally, they give you a "deposit address"... You send Bitcoins to this address, the marketplace/exchange simply credits your account balance and will then consolidate the deposited coins into their general pool... This often shows as the coins in your deposit address being moved soon after they are confirmed.

When you go to buy or withdraw, the marketplace/exchange simply checks that your balance is sufficient for the purchase/withdrawal request and then executes that request using coins from it's general pool.

The end result is that the coins you put in, are not likely to be the coins you get back.

It's like depositing cash at your bank... You give them a $20 note, that note is just put in the cash drawer with all the other $20 notes and your account balance increases by $20. When you withdraw, they just give you some random $20 note from the drawer... Not necessarily the same $20 note you gave them.

However, if your problem is that you deposited coins to this tockha marketplace... And your account balance has not been correctly credited with those funds... Then the marketplace is either "broken"... Or it is a scam.
4400  Economy / Service Announcements / Re: [ANN] ChipMixer.com - Bitcoin mixer / Bitcoin tumbler - mixing reinvented on: April 19, 2019, 11:08:20 AM
It should also be noted that ChipMixer deals purely in BTC... BTC in... BTC out... There is no USD, $, Yen, GBP, EUR or any other fiat currency involved.

Also, given the volatility of BTC pricing, attempting to conduct transactions of "fiat amounts" (ie. I sent $50), while using Bitcoin as the medium is likely to end in unexpected results.

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