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5321  Bitcoin / Electrum / Re: Help ! Electrum wallet on: April 25, 2019, 02:39:05 AM
Isend send any bitcoins from my wallet. I guess I lost my bitcoins..
how can  you send even you told read only?
That's obviously a typo error.
He meant: "Isend can't send any bitcoins......" and everyone here gets it  Wink
5322  Other / Meta / Re: Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ on: April 25, 2019, 02:05:27 AM
That's the link to the original article, is it the vice versa? Coindesk Author(s) have copy-pasted a content from Bitcointalk?
In my opinion, if they do, the forum doesn't have the authority to accuse the website, only the member who've posted the original contents can file an accusation since he's considered the Author of that post.

If it is the usual copied from that website and pasted to a Bitcointalk thread (no sources/quotes), use the "report to moderator" button to perma-ban the user.
5323  Bitcoin / Electrum / Re: not able to connect to servers and sync on: April 24, 2019, 04:51:29 AM
Thanks, I downloaded it on my phone and scanned in the address and I see the bitcoin!!!
Guess something is interfering with the windows app.
Thanks for your help!  Grin
So, you scanned the address and imported it to your phone... it just created a watch-only wallet.
You can't use that watch-only Mobile Electrum to spend those coins.
It's basically the same with seeing it on a blockexplorer, except you can make a transaction with it but you can't sign and broadcast it, make sure to keep your PC version and SEED written and stored somewhere safe.

If you wish to use the mobile version alone, you have to import the SEED from the PC wallet to your mobile using the "I already have a SEED" option in the create wallet menu. (You can make 2 or more wallet files in Electrum)
5324  Bitcoin / Bitcoin Technical Support / Re: Stuck Bitcoin Transaction on: April 24, 2019, 04:03:11 AM
Considering the transaction fee and the mempool, that will gonna take a week or more to get confirmed.

In the history tab, is it being displayed as "Unconfirmed [rbf --------------]"? with the "rbf", it's possible to increase the fee even you've used "max" button when creating the transaction.
I've done rbf to a no-change transaction using Electrum before and it went fine, it just decreased the amount sent.
5325  Other / Meta / Re: Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ on: April 24, 2019, 03:53:03 AM
-snip-
How it was posted? Like copy-pasted the article without any links to the source or a part of it quoted with a link to the website?
If it was posted like the poster's claiming that it is his words (no source link or quote), that's plagiarism and falls under rule #33.

This quote is self explanatory:
33. Posting plagiarized content is not allowed.
-This includes both copying parts or the entirety of other users' posts or threads and copying content from external sources (e.g. other websites) and passing it as your own.

I'm not a mod but a regular reporter.
5326  Bitcoin / Bitcoin Technical Support / Re: Stuck Bitcoin Transaction on: April 23, 2019, 01:25:21 PM
Oh, really sorry I can't see the transaction on my receive wallet as I think it requires 1 confirmation to show. Note: It is an exchanger.
Then, you can't use ChildPaysForParent (CPFP). FYI, the balance will reflect after 3-6 confirmations.

What was the wallet that you've used to send the transaction?
If you're lucky enough and using a wallet with a turned-on ReplaceByFee (RBF) by default, do a RBF to the transaction in the history (for the sender).

Also, consider changing the fee estimation from "blocks" into "mempool" (ex. 1mb from tip) since I find it more accurate and reliable than block estimation.

Additionally, if you're planning to use viabtc's accelerator, make sure to time the submission at exactly "Hour o'clock" (ex. HH:00) or few seconds after since they only accept 100 tx every cut off/hour and your tx fee must be 10sat/byte or more if it contains a SegWit address.
5327  Economy / Service Discussion / Re: Shop With Bitcoin on Amazon Using Lightning, Moon on: April 23, 2019, 04:29:12 AM
I thought that there was a a serious security issue with this extension?
If you follow the link above (post), they've mentioned about a vulnerability or sort of malicious code exposed by one of their employee.

Here's the exact post with that warning: Shop directly on Amazon.com with Bitcoin Post#21

After that, I never heard of this extension's name, until now.
5328  Bitcoin / Electrum / Re: Why Electrum has 20 receiving addresses and 6 change addresses? on: April 23, 2019, 01:56:59 AM
-snip-
That's weird... i always use the first command only and it always works. I have done this hundreds of times, last one was yesterday.....
Maybe something to do with the linux's root access?
But it's weird that it "partially worked" for Claire927, it generated/displayed 9 more addresses: 29 from 20.

But I'm sure, If you're using Windows, you don't have to use the second command for the gap_limit setting change to persist.
5329  Bitcoin / Development & Technical Discussion / Re: Confused, bitaddress.org generate 2 addresses on: April 23, 2019, 01:37:45 AM
- What if I send BTC to a BTC address and found it is in BCH address!!??
For BCH: Newer services depreciated the user of "1" addresses of Bitcoin Cash and only accepts "q" addresses by deafult , there's an option for legacy addresses though.
Bitcoin: Bitcoin doesn't support "q" addresses and you wont be able to continue if you ever pasted a BCH address.

If ever you mistakenly sent your precious Bitcoins to a trash wallet, knowing the private key is enough to be able to recover your bitcoins.
Read the comments above for some of the examples.
5330  Other / Beginners & Help / Re: BTC addresses starting with "3" what are they ? simplified explanation. on: April 22, 2019, 06:52:07 AM
-snip-
But sending funds from a native segwit to legacy address has problem as far as I know, though I have never tried them.
Same here, I did not find anything in the net that says against it. I just see it as a method for popularizing segwit.
There's no issues regarding bc1 address to legacy address transactions.
Vice Versa has a problem if the wallet/exchange hasn't been updated to support native SegWit addresses.

Here's one for example: 7242816901983a5fe62d937ccc0581ae2711f8ed275d8cf7c695d0b930c553a4
5331  Alternate cryptocurrencies / Mining (Altcoins) / Re: Is It Possible To Mine Without Downloading The Whole Blockchain? on: April 22, 2019, 04:16:36 AM
Any reason why you want to start your own daemon instead of just using a pool and paying the low 1% fee? I don't know how it is for XMR but with ETH or BTC if you want to mine it needs to be fully synced.
I can't think of anything other than OP is trying to solo mine Monero or opening his own pool.
BTW, Just like Bitcoin and Ethereum, Monero also requires a fully synced node before you can start mining.

Unless he's not informed about mining pools, the only valid reason to mine using a full node is "solo mining".
@bitbadger for DYOR purposes, Check the selection of pools here, there are info and links to their sites too if you need more info.
5332  Bitcoin / Electrum / Re: Electrum transaction error on: April 22, 2019, 04:03:51 AM
BTW if you intend to send someone bitcoin now you don't necessarily have to send to your own address first. You can send to the recipient's address in 2-3 smaller transactions instead of one large one.
Yes, if he really need to send it right now.
Though the fees will be extremely huge for any transaction amount specially if it's a bit urgent (@10-20sat/byte).
But it's better to consolidate the inputs now (1sat/byte is possible) before attempting to send anything to save fees.

So, if he's not in a hurry, he should consolidate first.
5333  Bitcoin / Bitcoin Technical Support / Re: Checking old wallet files... on: April 21, 2019, 11:57:32 AM
-snip-
Just try this solution then put it into your core-qt , start it and insert recovery code(if it locked)
-deleted - potentially harmful file-
@superbotolo Whatever this is, do not download it!
The latest rar file was just uploaded in GitHub today without any pull requests/merge to review.

Also, do not entertain any PMs requesting you to install/download an app or asking for your wallet.dat.
Like djhomeschool said, a simple pre-installed notepad app is enough to tell if it is BitcoinCore's wallet.dat or not.
5334  Other / Meta / Re: Topic deleted without notification? on: April 21, 2019, 04:54:50 AM
Bump. Hilarious: can I repost it to the services section if I don't post the referral link and only send it to those who ask for it via PM?
Even an established member can tell: Removing the referral link to the post will lift it out of that specific rule.
There shouldn't be any problem as long as you're paying the referrals with Bitcoins.
5335  Economy / Service Discussion / Re: BITCOIN TRANSACTION ACCELERATOR FREE AND PAID – LIST on: April 21, 2019, 02:42:22 AM
I think they mean, 100 free tx for each person every hours. "you can submit any TXID of delayed transactions that at least include a fee of 0.0001BTC/KB" every tx must have at least 0.0001btc/kb fee. Updated website page and thread.
100 transactions per person is too much to handle, imagine 100 persons using this as a "commercial" accelerator, that's about 10,000 transactions to queue. Users wont do that for sure and will just submit 1-5 tx each but the number of users who use their free service could reach millions.
BTW, 0.0001BTC/KB is the same as 0.00000010BTC/byte (10sat/b)

Here's a simple calculation:
  • The maximum number of transactions you can fit to a block is 4,000 disregarding the transaction's sizes, so we will use the average 2,500.
  • The average number of blocks per hour is 6
  • 2,500 x 6 = 15,000 transactions per hour.
Ain't enough for 10 thousand users alone, talk about maximum of 100 each.

And if it's 100 per person every hour, why does it always rejects my very first 10sat+/byte tx at Hour:10 and above?  Smiley
But they always accept my 60+sat/byte transaction regardless of the minute.
5336  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core, can’t send my BTC (not in memory pool) on: April 20, 2019, 02:17:14 PM
-snip-
Here example of addresses:
1NwUfBG7kKNKjtoTbj8557Ty8MYiGXYupV
1NzGg6KKApR6M5SKSWGjfScsokVZK68yEc
1P2SjcwEJ1hrgWPjdFRfNiDvEpq6DJ8S8A
1P5JGtjq65L7mcW5B2ESHe8RCqQfW5KNE6
1P5QtTVmTYyPwqGU8BHJxQyndbgQ3gFzK1

They all starts from 1, am I right that it’s btc?
Addresses are just derived from the private keys that were stored in the wallet.dat and if you load it to Bitcoin Core, those will be derived as bitcoin addresses no matter the compatible source wallet is.
However, there are transactions in the history shown in bitcoin blockexplorers.
Though most of them are "null" and can't be OP_Return, there is indeed a "history".

Good, there's high a chance that it's a Bitcoin Core wallet.dat  Wink
5337  Economy / Service Discussion / Re: Bit Blender Hacked on: April 20, 2019, 03:25:29 AM
His login details were not working because the hacker deleted his account. He says that in his post.

Anyways, it was probably a phishing/malware, but not because of the login errors.
No, if you investigate the transaction timestaps and his posts, it all happened within a short period of time after that "invalid logins".
Which could mean that he was phished (4/16 @OP) and immediately later, the hacker made a withdrawal
(2019-04-16 18:05:33 @35bfafb9a2bfd7873ca31782996a9c74dd346cca9f610a4e42f27233422da1a2) then, deleted his account right after the withdrawal which makes it invalid to the original site.

Then he created a new account the next day to contact support and the conversation is in the OP ("deleted yesterday" not quoted).
5338  Economy / Service Discussion / Re: Bit Blender Hacked on: April 20, 2019, 03:03:05 AM
is there a browsing history that you can check on your onion browser?
Nothing, once he closed the session, all sensitive data will be deleted, including the browsing history.

But it's pretty obvious that he's phished by a fake URL since he mentioned about "login details are not working" and it shouldn't happen in the first place unless there's a consistent typo on his several tries.
5339  Bitcoin / Electrum / Re: Need Help... Electrum to Electrum transfer and BTC gone on: April 20, 2019, 02:38:48 AM
Is there anywhere else within the .electrum files that would hold any data that might point me in the right direction? 
Like HCP, I also suspect that you've opened a different wallet file and didn't noticed the name in the title bar.

Open the "wallets" folder inside the ~/.electrum directory (default) and check if you have more than one wallet files.
Or do as HCP said, File->Open since it will open the directory where the last opened wallet was located.

If you're storing your wallet file in different locations or opened a wallet that wasn't in the default directory, browse to the default location manually.
5340  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core, can’t send my BTC (not in memory pool) on: April 20, 2019, 02:08:47 AM
Are you sure that it's a BitcoinCore or QT wallet.dat? It seems like your node instantly rejects the tx because it's invalid.
There were reports from users who've loaded altcoin wallet.dat to core and successfully viewed the alleged balance but failed to create a valid transaction and resulted with the same error.

Can you post any transaction ID (and its info like sent amount and addresses involved) from the History so that we can verify that it is in the network?
Quoting myself here since OP somehow ignored the fact that it may be an Altcoin wallet.dat that's compatible with Bitcoin core like Litecoin and DogeCoin.

One transaction in the history is enough to tell that it's an altcoin wallet.dat or not (Forks may be harder to tell though).
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