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1101  Bitcoin / Wallet software / Re: Searching for bitcoin wallet supporting old version of android on: November 10, 2020, 10:38:26 AM
IIRC, schildbach wallet was the first android wallet available... I have no idear what the minimum android version for the current release is tough... No harm in trying it out (i guess). AFAIK, it doesn't have any vulnerability's (but, truth be told, i haven't used this wallet in ages, so you should DYOR before testing)/

The minimum android version isn't shown on the google play store, and i don't have an android 4 device laying around, so i have no way of testing it out.

I would, however, urge you to be carefull when installing a bitcoin wallet on a device with such an old os... How long since android 4 received any security patches?
1102  Bitcoin / Bitcoin Technical Support / Re: Cold wallet damage on: November 10, 2020, 10:32:24 AM
Hey guys, what if my ledger wallet is damaged is there any way to recover my crypto? Any back up or something?

when initialising your device, you'll be presented with a seed phrase and you'll be asked to write this phrase down.

If you ever break/lose your wallet, you can buy a new one and restore it using said seed phrase... Or if you're in a hurry, you can use electrum to restore your wallet using exactly the same seed... However, when using electrum to restore from seed you should consider your wallet to be compromised... But it's nice to know this is possible in case there's a sense of urgency.

By the way, this is exactly why you should write the seed phrase on paper, and never store it online. Also, make sure you store the paper on a safe place... In order to protect you against somebody finding your seed, you can use a passphrase:
https://support.ledger.com/hc/en-us/articles/115005214529-Advanced-passphrase-security
1103  Bitcoin / Development & Technical Discussion / Re: is it Dusting ? on: November 06, 2020, 10:56:40 AM
I came to notice this below transaction and wondering what exactly its purpose ?  

https://www.blockchain.com/btc/tx/4ff35188b4cd5649c1578b8256b49fbb68e92006f81d83a6f224d96264fe9c31

It seems the first couple of outputs are actually some sort of spam, leading to https: [slash] [slash] memo [dot] sv [slash] topic [slash] hmwyda

Maybe the dust is meanth for the receivers to check the transaction funding their address and following the spam link?
1104  Bitcoin / Development & Technical Discussion / Re: Did I find a bug in the Bitcoin Core wallet? on: November 06, 2020, 08:16:39 AM
Ok, you updated your OP since i last posted and gave some extra information that make things a bit clearer.

Where did you get these wallet files from? I followed the link in your signature, and it seems you're trying to sell a collection of "hacked" or "lost" encrypted wallets with big balances in them.
Is this one of these wallets? Some of them are known to be edited... Some of these wallets are edited in such a way the seller can provide nice screenshots to his victims clients and sell them worthless wallets for a big premium by manually changing the wallet files.
1105  Bitcoin / Development & Technical Discussion / Re: Did I find a bug in the Bitcoin Core wallet? on: November 05, 2020, 07:45:12 PM
--snip--
Everything is fine in the explorer, but there is some mistake in the wallet program (Bitcoin Core version v0.20.1).

You've just shown 2 screenshots of the qt wallet, these screenshots look 100% fine...
It's impossible for us to check any explorer since the screenshot doesn't show addresses or tx id's, so we're unable to tell you if you found a bug or not...

However, it would supprise me if something was wrong... >95% chance either your wallet file was messed with, something went wrong during synchronisation or the explorer you used messed up (some explorers have quite a lot of bugs).
1106  Bitcoin / Development & Technical Discussion / Re: Did I find a bug in the Bitcoin Core wallet? on: November 05, 2020, 07:39:27 PM
Am i missing something?

You're checking 2 different wallets and you see 2 different history's?
1107  Alternate cryptocurrencies / Altcoin Discussion / Re: Monero "BADCACA" - XMR Tracking Project (with user's porn preferences) on: November 05, 2020, 12:55:03 PM
I do hope you're working together with law enforcement, especially for the users that prefer children... I mean, knowing the ip of pedophiles and not going to the police is morally wrong (imho).

I'm not a monero user myself, so i don't really know what this ciphertrace vulnerability is, but it'll certainly make a nice read once i have some spare time...
1108  Other / Meta / Re: Bitcointalk account hacked! . DT on: November 05, 2020, 12:48:24 PM
Could you provide a signed message from any staked account? The one you used to loan coins to Royse777 here will suffice.
It's not that I don't believe the account has been hacked, but seeing the other posts made from this account, I don't fully trust this claim is completely legit

^^ exactly!

I'm sorry if this is for real, but you (the OP) might aswell be somebody who has a problem with Parodium, and decided to claim to be the original owner so DT would tag the account and cause harm to the real owner.

I'm not saying this is the case here (defenately not), but i've seen stranger things happen in the past... If you can provide a signed message with a staked address, i'll tag the account straight away... If not, i'd discourage others from tagging the account due to the fact they could be helping somebody with a personal vendetta instead of helping the victim of a hacked account.
1109  Bitcoin / Bitcoin Technical Support / Re: Bitcoin-qt is not opening on: November 05, 2020, 12:15:37 PM
--snip--
And I cloned P2Pool and setup my own mining pool..
What's the point of cloning one if it's a small project? People can mine from their pc via Core. It must be hard, but according to your posts, you are an experienced miner so it wouldn't be that bad.

It's the same point as everything else in your thread: a learning experience... The point of setting up a pool for such a cloned coin is exactly the same point as having a block explorer or an spv wallet... After all: you can easily parse those couple of blocks manually instead of using an explorer, and you don't need an SPV wallet if the total size of your blockchain is only a couple Mb...
1110  Economy / Collectibles / Re: [Free Raffle] Polymerbit 20mBTC Coinfest 2018 on: November 05, 2020, 11:01:20 AM
98 - mocacinno

Thanks!
1111  Bitcoin / Bitcoin Technical Support / Re: Bitcoin-qt is not opening on: November 05, 2020, 10:15:52 AM
--snip--
  • Create an altcoin core with bitcoin core source code.
  • Create an altcoin wallet using electrum source code.
  • Create a block explorer for the altcoin.
--snip--

A long time ago, i have created my own (private) coins for learning purposes... So it's defenately possible.
I stared with litecoin's codebase since at that time it still had the code for a cpu miner, so that made things easyer to find the first couple of blocks. I had that network running between a couple of home computers for weeks...

I also setup a block explorer... Can't remember which one tough... And I cloned P2Pool and setup my own mining pool..

IIRC, the whole thing took me about a week... Including adapting litecoin's codebase for my own "coin", compiling linux and windows binaries, setting up an explorer and a pool... But since it was a private project I never applied any updates or improvements.

Later on, i got fed up by the sheer amount of low-effort worthless altcoins flooding the market, so i made a proof-of-concept to prove anybody with some basic skills could push an altcoin to the market in a couple of hours, so i created mocacoin in a timespan of 3 or 4 hours (IIRC): https://www.mocacinno.com/mocacoin
It's based on monero's coinbase (or was it based on a clone of a clone of XMR... Don't remember)

So, if that's TL;DR; : sure, it's possible to create your own altcoin, as long as it's for learning purposes... an explorer: sure... a pool: sure.... electrum: sure (i haven't done this personally, but i don't see why not)...
1112  Bitcoin / Electrum / Re: Using Electrum via Proxy on: November 05, 2020, 10:02:22 AM
i think you do need a tld (domainname) if you want to use certbot... IIRC, you'd have to execute following command after nginx is running correctly:

Code:
certbot --nginx -d yourdomain.com -d www.yourdomain.com

There's always the option of creating a self signed certificate, but you'll probably be confronted with warning messages later on if you do so...
1113  Economy / Services / Re: Expert Spreadsheet Updater Needed on: November 04, 2020, 01:16:29 PM
I'm not a spreadsheet updater per sé... But i did my fair share of scripting.

IF there's a source available for the data that's parseable (or even better, an api) i can probably write you a python script that fetches the data and places it in a spreadsheet automatically. That way you don't have to find somebody to manually update your spreadsheet, but you can just run the script yourself and have an automatically generated sheet available.

Offcourse, per hour, it's more expensive to let somebody write a script like this compared to finding somebody to update your values.. Only consider this if there's a nice (parseable, stable) source available and if you want frequent updates that require quite some time to complete.
1114  Bitcoin / Bitcoin Discussion / Re: Is there a tool to accurate estimate unconfirmed bitcoin transaction? on: November 04, 2020, 12:20:39 PM
It's pretty "simple"... First, check your transaction fee (in sat/vbyte). One of the easyest ways of doing this is looking up your tx on a block explorer:
https://blockstream.info/tx/4054df5d554a3a1c4a05f8582d31449db69f0b80c8dda4d507f8b41d2e070fcb

you payed 1 sat/vbyte

The, you look at the current state of the mempool on a site like this one:
https://jochen-hoenicke.de/queue/#0,24h

If you look at the bottom grahph, and you hover over the last couple of minutes, you'll see something like this:


A block can contain up to 1Mb of transaction data (not counting the witness data). You see that you should have payed a fee of >250 sat/vbyte to be in the top 1 Mb of the mempool.

You, on the other hand, are in the bottom 63 Mb... This means that IF everybody would suddenly stop broadcasting transactions, it would still take another >60 blocks before you'd have a decent chance of having your transaction confirmed...
~6 blocks/hours => >10 hours... and that is IF everybody would completely stop broadcasting transactions.

In your case it could take several days, even weeks or months before your transaction ends up in a block. There is no way of telling. Everybody who even attempts to give you a real estimation is basically guessing...

You didn't opt-in rbf, you payed less than 10 sat/vbyte, so if you want to speed up your transaction you'll have to pay a big mining pool (like viabtc) or execute a CPFP: https://bitcointalk.org/index.php?topic=5285192
1115  Economy / Service Discussion / Re: Anybody know a good Bitcoin price widget app for Linux? on: November 04, 2020, 11:50:13 AM
You could always write a small script that fetches the price from https://api.coindesk.com/v1/bpi/currentprice.json, put it in your crontab then push the output to notify-send or kdialog or yfiton or conky or use ImageMagick to print the output to your background image or... whatever tool is available for your distro/desktop env
1116  Bitcoin / Bitcoin Technical Support / Re: Sent coins to expired wallet on: November 04, 2020, 11:31:30 AM
You say they're honest, but are they competent? Seems like they have no clue about they payment method they're accepting...

From your point of view, it doesn't even matter all that much whether they used a third party payment gateway or not, you are the customer, they (or a third party working for them) generated a deposit address for you, you deposited funds to said address, they (or the third party working for them) now have access to your funds. That's it, end of discussion.
The only way this discussion would be able to continue is if you were victim of a copy/paste virus or a phishing site...

It IS possible they work with a third party, and they have little understanding of what's actually going on, but that does not excuse them from giving false information to their client. Least they should have done is contact the third party provider themselfs to sort things out, that's just good customer service. This, however, could be qualified as bad customer service IMHO.
1117  Bitcoin / Bitcoin Technical Support / Re: Using Electrum as a Backup to Ledger on: November 04, 2020, 07:46:39 AM
Quote
If it starts with '1' - select legacy; if '3' - p2sh-segwit; if bc1 - native-segwit.
Ah ha!  Thanks for the info, I was missing this piece Smiley  

What actually matters is if you missed this piece:

--snip--
That will defeat the purpose of using a hardware wallet since you've already typed your seed phrase on an online machine.
--snip--

Once you've typed your seed on an online machine, you should consider your wallet to be compromised...

My advice for you would be to create a new seed phrase with your hw wallet and move all your funds from your compromised wallet to the freshly generated wallet
1118  Economy / Reputation / Re: Complain about negative feedback on: November 03, 2020, 12:39:53 PM
Trust is not moderated... The only one who can remove your trust rating is the one who gave it.

In your case, it seems like the person who gave you negative trust did warn people that submitting more reports would lead to a negative tag:
https://bitcointalk.org/index.php?topic=5277165.msg55433650#msg55433650

For the rest, i don't know how that whole bounty hunting ecosystem works... I have no idear if what the person who gave you negative trust did so because of valid reasons... I just see that your account is only used to post "bounty"-posts, these things don't add any value nor discussion to bitcointalk, so i don't think many people will jump into this discussion, since you are unknown and haven't added anything usefull to the community.
1119  Economy / Collectibles / Re: [Free Raffle] 2017 and 2018 Zero Euro Notes - 7 slots remaining on: November 03, 2020, 11:59:07 AM
20-23 mocacinno

Thanks!


apparently, i was to late... 20-23 was already taken... Sorry!
1120  Other / Archival / Re: . on: November 03, 2020, 11:31:19 AM
99 - mocacinno

Thanks !
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