Bitcoin Private Keys Directory

I have an old lealana physical bitcoin whats the best site to upload the private key and redeem it? Hoping to not have to download qt wallet and wait days for the blockchain to download. Thanks

submitted by ubettercall1 to Bitcoin [link] [comments]

How do I move private keys from Bitcoin-QT to another wallet without having the blockchain downloaded?

I currently access my bitcoins on Bitcoin-QT and have used a pretty good passphrase to encrypt the wallet.dat file. I would like to eventually move my coins to a paper wallet for offline storage, but currently want to get my coins over to blockchain.info (I set it up the account on a thumb-drive linux system with 2FA and a great password). I've read instances of people decrypting their wallet, then finding some unknown malware on their computer immediately emptying their wallets. I don't want to rely on the computer I currently have my wallet.dat file on just in case this happens to me. I'm trying to get my private keys into something like electrum or multibit using pywallet to decrypt my wallet.dat on a fresh linux system (thumb-drive again). However, the format from pywallet doesn't seem to be right to get it on electrum nor multibit.
Is there a special way to extract the private keys from wallet.dat to import them into multibit or electrum? I don't think using Bitcoin-QT on my thumb drive is an option since the blockchain is so huge and I think the blockchain is needed to do anything with Bitcoin-QT.
I didn't find too much help via google or the security guide on the right side of this page.
submitted by dyrich20 to BitcoinBeginners [link] [comments]

Gridcoin 5.0.0.0-Mandatory "Fern" Release

https://github.com/gridcoin-community/Gridcoin-Research/releases/tag/5.0.0.0
Finally! After over ten months of development and testing, "Fern" has arrived! This is a whopper. 240 pull requests merged. Essentially a complete rewrite that was started with the scraper (the "neural net" rewrite) in "Denise" has now been completed. Practically the ENTIRE Gridcoin specific codebase resting on top of the vanilla Bitcoin/Peercoin/Blackcoin vanilla PoS code has been rewritten. This removes the team requirement at last (see below), although there are many other important improvements besides that.
Fern was a monumental undertaking. We had to encode all of the old rules active for the v10 block protocol in new code and ensure that the new code was 100% compatible. This had to be done in such a way as to clear out all of the old spaghetti and ring-fence it with tightly controlled class implementations. We then wrote an entirely new, simplified ruleset for research rewards and reengineered contracts (which includes beacon management, polls, and voting) using properly classed code. The fundamentals of Gridcoin with this release are now on a very sound and maintainable footing, and the developers believe the codebase as updated here will serve as the fundamental basis for Gridcoin's future roadmap.
We have been testing this for MONTHS on testnet in various stages. The v10 (legacy) compatibility code has been running on testnet continuously as it was developed to ensure compatibility with existing nodes. During the last few months, we have done two private testnet forks and then the full public testnet testing for v11 code (the new protocol which is what Fern implements). The developers have also been running non-staking "sentinel" nodes on mainnet with this code to verify that the consensus rules are problem-free for the legacy compatibility code on the broader mainnet. We believe this amount of testing is going to result in a smooth rollout.
Given the amount of changes in Fern, I am presenting TWO changelogs below. One is high level, which summarizes the most significant changes in the protocol. The second changelog is the detailed one in the usual format, and gives you an inkling of the size of this release.

Highlights

Protocol

Note that the protocol changes will not become active until we cross the hard-fork transition height to v11, which has been set at 2053000. Given current average block spacing, this should happen around October 4, about one month from now.
Note that to get all of the beacons in the network on the new protocol, we are requiring ALL beacons to be validated. A two week (14 day) grace period is provided by the code, starting at the time of the transition height, for people currently holding a beacon to validate the beacon and prevent it from expiring. That means that EVERY CRUNCHER must advertise and validate their beacon AFTER the v11 transition (around Oct 4th) and BEFORE October 18th (or more precisely, 14 days from the actual date of the v11 transition). If you do not advertise and validate your beacon by this time, your beacon will expire and you will stop earning research rewards until you advertise and validate a new beacon. This process has been made much easier by a brand new beacon "wizard" that helps manage beacon advertisements and renewals. Once a beacon has been validated and is a v11 protocol beacon, the normal 180 day expiration rules apply. Note, however, that the 180 day expiration on research rewards has been removed with the Fern update. This means that while your beacon might expire after 180 days, your earned research rewards will be retained and can be claimed by advertising a beacon with the same CPID and going through the validation process again. In other words, you do not lose any earned research rewards if you do not stake a block within 180 days and keep your beacon up-to-date.
The transition height is also when the team requirement will be relaxed for the network.

GUI

Besides the beacon wizard, there are a number of improvements to the GUI, including new UI transaction types (and icons) for staking the superblock, sidestake sends, beacon advertisement, voting, poll creation, and transactions with a message. The main screen has been revamped with a better summary section, and better status icons. Several changes under the hood have improved GUI performance. And finally, the diagnostics have been revamped.

Blockchain

The wallet sync speed has been DRASTICALLY improved. A decent machine with a good network connection should be able to sync the entire mainnet blockchain in less than 4 hours. A fast machine with a really fast network connection and a good SSD can do it in about 2.5 hours. One of our goals was to reduce or eliminate the reliance on snapshots for mainnet, and I think we have accomplished that goal with the new sync speed. We have also streamlined the in-memory structures for the blockchain which shaves some memory use.
There are so many goodies here it is hard to summarize them all.
I would like to thank all of the contributors to this release, but especially thank @cyrossignol, whose incredible contributions formed the backbone of this release. I would also like to pay special thanks to @barton2526, @caraka, and @Quezacoatl1, who tirelessly helped during the testing and polishing phase on testnet with testing and repeated builds for all architectures.
The developers are proud to present this release to the community and we believe this represents the starting point for a true renaissance for Gridcoin!

Summary Changelog

Accrual

Changed

Most significantly, nodes calculate research rewards directly from the magnitudes in EACH superblock between stakes instead of using a two- or three- point average based on a CPID's current magnitude and the magnitude for the CPID when it last staked. For those long-timers in the community, this has been referred to as "Superblock Windows," and was first done in proof-of-concept form by @denravonska.

Removed

Beacons

Added

Changed

Removed

Unaltered

As a reminder:

Superblocks

Added

Changed

Removed

Voting

Added

Changed

Removed

Detailed Changelog

[5.0.0.0] 2020-09-03, mandatory, "Fern"

Added

Changed

Removed

Fixed

submitted by jamescowens to gridcoin [link] [comments]

Guide for novice crypto investors

Bitcoin is a decentralized system, any user of which could control the movement of their own funds. You can use the currency to make transactions, pay for purchases, receive transfers, and exchange it for cash. For transactions, a special address is used, encrypted with a 16-character key. The buyer decodes the code to transfer bitcoins to the specified address.

Bitcoin Mining

Mining is a process that ensures the security of the BTC system, which adds new blocks to the blockchain in chronological order (new transactions). Blocks are added when the codes are decrypted, the transaction is completed, and bitcoins are transferred or exchanged.
The main cryptocurrency is generated by miners using software that solves cryptographic problems. The reward for a new block is agreed by all network participants, but usually amounts to 12.5 bitcoins. Part of the user fees for transactions also goes to reward the miners. Cryptographic tasks become more complex every year to prevent inflation (mining complexity).

Features of the transaction

  1. Anonymity. The address that Bitcoin is sent to consists of 30 characters. You can track the flow of transactions, but the address is not always associated with a real person.
  2. Security. The balance of bitcoins is fixed in a cryptographic system with a public key. Only the owner of a private key can send cryptocurrency to other addresses.
  3. Unable to cancel. It is no longer possible to cancel the transaction after the transaction has been completed.
  4. Deregulation. Everyone can use cryptocurrency.
  5. Coverage and speed. Information about the transaction is transmitted incredibly quickly, and confirmation is received within a few minutes. No one knows the buyer’s physical location.

Where to buy Bitcoin?

There are Deposit systems that use crypto-exchanges. So, to buy Bitcoin, you will first need to top up your balance, buy the digital currency itself, and then withdraw it to your Bitcoin wallet, paying a Commission for withdrawing coins. The cheapest method of buying is buying on the stock exchange. The exchange rate is as close as possible to the market rate.

BTC rate

The current exchange rate of the coin is calculated based on the average price on the largest currency exchanges. For example, you can track the exchange rate on our Bitniex exchange. The Bitcoin exchange rate is constantly changing, during the day it can change by 10% in one direction or another.

The choice of crypto-currency wallet

A cryptocurrency wallet is a place where digital currency will be stored. The most secure method of storage is using paper or electronic wallets.

TOP secure cryptocurrency wallets

These wallets are one of the most secure crypto wallets in the world:
submitted by Bitniex to Bitniex [link] [comments]

Noob friendly guide on how to verify the message about Craig Wright.

Noob friendly guide on how to verify the message about Craig Wright.

https://preview.redd.it/wxw5k0z7t1151.png?width=1288&format=png&auto=webp&s=b564a9cfdaa85e33cbb642d70396957714a10a71
Instructions
Step 1: Go to https://reinproject.org/bitcoin-signature-tool/ (click Bitcoin QT)
Step 2: Go to https://paste.debian.net/1148565
Step 3: Copy the message without quotes
Step 4: Copy wallet address and digital signature (there are 144 pairs to choose from)
Step 5: Go to https://www.blockchain.com/explorer
Step 6: Copy the wallet address and click enter to see when the first transaction was made with that wallet (all from early days of Bitcoin)

What does this prove?
  • It proves someone else has private keys (passwords) for wallets Craig Wright claims to have access to in the court case (Craig may not even have access himself, although he claims he does). This means he either lied in court (purjury) or need to provide evidence he actually has access to these wallets too.
  • This proves someone involved in the early days of Bitcoin (mathematically verifiable) thinks Craig Wright is not Satoshi.
  • This does not mean Satoshi signed this message (it could be though). It does not matter anyway, we are all Satoshi.
Note: DO NOT COPY YOUR OWN PRIVATE KEY ONTO ANY OF THESE WEBSITES.
submitted by amansaggu26 to CryptoCurrency [link] [comments]

How-to: setup your multisignature Cold wallet in Bitcoin Core 0.20 (highest security setup)

Last release of Core is amazing !
The main new feature is sortedmulti descriptor. This allows you to import your multisig setup in Core almost as if it was Electrum when combine to the new PSBT export in GUI !
As it needs command line and some weird checksum, you also need to input very long command in the console and if you made a mistake, you cannot copy the last command you made. So take your time when the commands are long to check everything and don't miss anything, use copy paste before validating the long command. You only have to do this once fortunately :)
I detail here how you do it with a k of n setup, good luck:
And you are DONE ! You should get the exact same addresses than Electrum and you can created receiving addresses in Qt ! To send money, just go to the send section, use the new coin control feature and export a partially signed transaction. You can use HWI or Electrum to sign it with your hardware wallets !
Notice: You can import more or less than 2000 addresses of each type. If less, blockchain rescan is faster but you may need to redo what we have done here later when all addresses will have been used once. If more, it is the contrary.

You now have the most possibly secure setup in one software: multisig with hardware on the full node wallet. When Bitcoin Core 0.21.0 will be out, we will also have native descriptor wallet so maybe we will have HD version of this. But for now, this is the best you can do ! Enjoy :)

P.S. : if you like doing things in one shot you can do the last two steps in one big command: importmulti '[{"desc": "wsh(sortedmulti(k,[path1]xpub1.../0/*,[path2]xpub2.../0/*,...,[pathn]xpubn/0/*))#check_sum0", "timestamp": birth_timestamp, "range": [0,2000], "watchonly": true, "keypool": true}, {"desc": "wsh(sortedmulti(k,[path1]xpub1.../1/*,[path2]xpub2.../1/*,...,[pathn]xpubn/1/*))#check_sum1", "timestamp": birth_timestamp, "range": [0,2000], "watchonly": true, "internal": true}]'
submitted by Pantamis to Bitcoin [link] [comments]

Just lost 160 BTC from address managed with blockchain.info MyWallet

I just had 160 bitcoins stolen by this transaction: https://blockchain.info/tx/5abb271eb6e2d0da1855b06282c84dcf7467dda9da6da9090cad10ddae957fc7
I use the blockchain.info wallet service to manage that address. My password was a random 18 character password with punctuation, uppelower case etc. I had two-factor authentication with Google Authenticator turned on and a second password on the account that was a random 8 characters.
I had logged into the account with my laptop at home to send a small transaction of 0.937 bitcoins half an hour earlier. I haven't left the house since so no one has had access to my laptop. I'm on WPA2 secured wifi but not using a VPN. Laptop is running Ubuntu. I also have the blockchain.info app on my phone. It doesn't use the 2-factor authentication or the main password but does prompt for the second password.
Update: As pointed out by metavox in the comments the same transaction that emptied my main vanity address that I had loaded into blockchain.info also stole from two other addresses, one of which I had sent 1 BTC to on Sept 5th 2012. I've worked out that I was attending a local bitcoin meetup in Vancouver at that time and my best guess is that I owned 1PcXspQbZWxUkS9bHcbgMUsb8HsUzP5noT in some other wallet that I was testing/demoing at the time and had also loaded my vanity address into. I'm not certain if that's for sure the case or what wallet software it might've been since I've experimented with so many of them, but it seems likely that my blockchain.info account wasn't the one that was compromised since the 1PcXspQbZWxUkS9bHcbgMUsb8HsUzP5noT address wasn't loaded in there and I did have other archived addresses in the blockchain wallet with some BTC left in them that wasn't stolen.
submitted by asoltys to Bitcoin [link] [comments]

IOTA funds were stolen (3.49Ti ~500k$) on 12th March 2020 after network relaunch [longread]

Hey CC comunity!
First of all, sorry for posting it a bit late I have some serious changes in my lifestyle and business due to Coronavirus situation in the world. For those who are infected I wish to get well soon and all the rest to stay safe and to stay home.
Here is my short story:On March 12th I made similar but short post regarding my stolen IOTA in the sub IOTA. First of all I met around 50% downvotes, I don’t know why but it seems that IOTA’s community don’t want to see posts regarding stolen IOTA, I got a lot of critics for using Trinity wallet instead of hardware and so on. But I see nothing strange using desktop wallet and it doesn’t matter whether it is IOTA Trinity or Bitcoin QT or Ethereum wallet unless in has strong manually typed password, VPN connection and some other security things. Or maybe IOTA’s community was afraid of unwanted bad attention during that market crash that day. So because of that experience I decided to make a post here at CC.
Some short reminder of what happened before my funds got stolen (https://status.iota.org)
Some news:https://www.coindesk.com/iota-foundation-suspends-network-probes-fund-theft-in-trinity-wallethttps://cointelegraph.com/news/iota-foundation-investigates-funds-allegedly-stolen-from-trinity-walletshttps://www.theblockcrypto.com/post/55955/iota-foundation-funds-stolen-users-of-trinity-wallet
If you don’t want to read that news here are some facts with timestamp:
February 12th 2020 - 18:55
As a precaution we ask you to keep your Trinity wallet closed for now.
February 12th 2020 - 19:20
After initial investigation we decided to turn off the Coordinator to make sure no further theft can occur until we find out the root cause of these thefts. (Lets say: “blockchain stopped”)
February 14th 2020 - 17:50
We have found the exploit.
February 15th 2020 - 00:50
After successfully identifying the attack on Trinity through a third-party integration
February 17th 2020 - 02:23
We have just released a safe version of Trinity Desktop to allow users to check their balance and transactions. This version (1.4.1) removes the vulnerability announced on 12th February 2020. (I’ve installed this particular version)
February 21st 2020 - 18:43
ACTION MAY BE REQUIRED TO PROTECT YOUR TOKENS IN TRINITY.
February 24th I left my country for some working trip
February 26th 2020 - 13:10
We are currently in the testing phase of the migration tools, once testing completes the tools will be audited by a external party. If this all goes well we are aiming to release these tools later this week.
February 29th 2020 - 19:15
The Seed Migration Tool is now available.
March 6th 2020 - 15:17
REMINDER: You have until 5PM (UTC), Saturday, 7th March to migrate your seed.
I’m still out of the country but I’m pretty sure I’m safe coz I’ve installed 1.4.1 wallet which removes the vulnerability.
March 8th 2020 - 18:15
The migration period has ended.
I got back to my country
March 10th 2020 - 16:45
We are aiming to resume value transactions around 5PM CET today.
March 10th 2020 - 18:15
The network coordinator has resumed operation. (Let’s say “blockchain restarted”)
Now my turn:
My balance by that time (https://imgur.com/EJiB6it)
March 10th
I’ve decided to send my IOTA to exchange until I buy Hardware wallet and sort it out how it worksTest transaction to exchange 5Gi:JQ9DZPGUFLBJTLDLIKQBWLUBOXJULKIQFSWKNYVFIHETSZJOTGRYEZZELE9BZFVUEBGATEITPDTXXHZVD
It took exchange 24 hours to credit it to my balance…
March 11thFirst large transaction to the exchange (~23% of my net holdings of IOTA) 1Ti9YGGTHDKARCBVEPWUYURYEAKSKUNITGCGKSCJRXBVKHLBHEXXTNAWOFNPOBGHG9IKCZRABFNBJHVWNZIZ
All over again… 24h to credit it to my balance.
March 12th
I’ve opened my Trinity wallet and found out that money were stolen 3.4TiPOUBLIDSDZSNLKYBHVDAAEGVKGZ9PGKCBKRGUKEKIUQGSEWZNBQCHLLKIAZKEYHJVGJD9GYHT9JJNY9VW
screenshot of transaction with stolen IOTA (https://imgur.com/DtXbjOs)
All performed transactions (https://imgur.com/M8Qj2jC)
Same day I’ve made first post on reddit to get some attention to the happened situation. At the same time I’ve start to search for some technical support through over official telegram groups:
iotatangle
(https://imgur.com/McmrF3L)I’ve send a message where I’ve stated that my funds were stolen after network relaunch. Got some response from user Basti he invited me to another group with general discussion.screen shot 1 (https://imgur.com/hvDuoQA)screen shot 2 (https://imgur.com/MewdNm5)
Our short dialogue continued at the general discussion group iotacafe
(https://imgur.com/e9ErcPW) Where Basti introduced me to the IOTA Foundation member Antonio Nardella (https://imgur.com/WxZRk8N)
Before I started my conversation with Antonio I decide to get some information about him. I’ve found a Medium post with some welcoming words to Antonio Nardella.
(https://imgur.com/KK4zoOv) telegram(https://imgur.com/VquNCpi) medium
Seems legit.
Of course I couldn't be 100% sure it was him but the information he asked for wasn’t really sensitive so decided to share all I knew and all I did.
(https://imgur.com/X3Ha02Q) He also mentioned a wallet integrated service MoonPay, whether I used the wallet with this service or not and it didn’t matter if I used the service it self.
I’ve informed him that I used 1.4.1 wallet which was recommended to install on February 17th 2020(https://imgur.com/iZdNcm7)
When he gathered all the necessary information regarding loss of funds he took the time for sending this information for investigation team.
After a long awaited answer I got the same day this:
“Hello, I was informed that the loss of tokens is associated to the person/team responsible for the Trinity wallet attack via a third-party dependency from Moonpay.
As suggested on https://status.iota.org/, please file a report with the local police and to cite the following case number when doing so: LKA Berlin, Center for Cybercrime, case number: 200213-1717-i00290.”(https://imgur.com/Gov1v0i)
So, reinstalling the wallet didn't help me to avoid the loss of funds.
Well if my funds are proved to be stolen then it means - yes, I’ve used the Trinity wallet between the December 17th 2019 and the February 17th 2020. And yes, I wasn’t able to make seed transition during the given period. I was out of the country starting form Feb 24th till March 8th. I can even proove it with my border passing stamps… You know I didn’t use to take 4.5Ti with me just in case I would need an urgent seed transition. Could you imagine thousands of people with their multimillion Bitcoin holdings carrying private keys everyday with them just in case they would need seed transition… The funds were stolen not by my mistake but IOTA developers/foundation/etc (lets say IOTA team) mistake.
At the end of my story I want to take your attention to the fact that I didn’t compromise my PC neither wallet nor password nor seed. All my fault was for using the desktop wallet… How can you imagine your user without using your software/services/etc… I want to publicly call IOTA team (especially mr David Sonstebo) to cover not only those which were to happen back in the Feb 2020 but all the loses which were caused by that wallet vulnerability. (https://www.coindesk.com/iota-founder-personally-refunding-hack-losses-to-safeguard-projects-remaining-reserve)
Thanks for reading and thanks for your time!
submitted by blockchainified to CryptoCurrency [link] [comments]

I want to remove my BTC from an online exchange... where to?

Title says it all really - not overly happy with them sitting on a server somewhere with all the recent legislation about centralised exchanges.
Where can I move them where I don't have toworry about any of this?
Cheers!
submitted by do_you_realise to Bitcoin [link] [comments]

Mentor Monday, August 01, 2016: Ask all your bitcoin questions!

Ask (and answer!) away! Here are the general rules:
And don't forget to check out /BitcoinBeginners
You can sort by new to see the latest questions that may not be answered yet.
submitted by BashCoBot to Bitcoin [link] [comments]

This obviously isn't reaching anyone

This obviously isn't reaching anyone submitted by themusicgod1 to Bitcoin [link] [comments]

Coinbase added 20k new wallets in one week. Now have 950k. Should hit 1 million by end of february.

Like the title says i looked on coinbase last week and they had 930k today Its updated to 950k. Bitcoin is going mainstream.
submitted by bitcoinchamp to Bitcoin [link] [comments]

Fed Banker Tries Criticizing Bitcoin, Ends Up Perfectly Describing The Fed

Fed Banker Tries Criticizing Bitcoin, Ends Up Perfectly Describing The Fed submitted by TheAgoristReport to Anarcho_Capitalism [link] [comments]

350 bitcoins, encrypted wallet.dat deleted - lost forever?

I know I am insanely stupid. There is no need to be upset and yell that at me through the screen. I am happy to not be a gun owner because tonight I would have killed myself. I am posting this because countless others have posted similar stories whereby they learned important lessons the hard way due to lack of technical knowledge. In my case, the reason for this lack of knowledge was likely, ironically, the same reason I bought some bitcoins: drugs. I won't get into that. What I will post is where I went wrong, and where I'm at now.
Here's the full story: I had a securely encrypted wallet.dat with about 400 bitcoins on it that were purchased back at $10 or so. I pulled said wallet out of cold storage recently to cash money out of this wallet a few times to get some gift cards from gyft.com. I missed something ABSOLUTELY CRITICAL in my understanding of encrypted wallets.
When you send money, your wallet.dat file changes. You ABSOLUTELY MUST make new backups before deleting this file. Please don't do what I did and simply disregard this file after making changes on the blockchain...and then, on the same PC (sigh) proceed to reinstall StarCraft II when it fails to run due to Virtu MVP being retarded, ruining any shot at recovery (NONO #2: NEVER run bitcoin on your primary machine FOR ANY REASON).
I was a fool. Now I'm staring at TestDisk and File Manager in Parted Magic (linux boot disc) in total, absolute disbelief. Unless my data is stored within ".sst" files (never worked with these before and I can't figure out what they are with google, though it looks like fucking chrome shit because I leave it open all the time), which it may be, I don't know what to do. Maybe I'll try GetDataBack NTFS next. Maybe I can actually read filenames proper more effectively there? Does anyone have experience with this?
I have turned off the main PC and booted it up into parted magic so there is no data being written to the drive anymore. If there is ANY shot at this wallet.dat being recovered I am not screwing myself over any more now.
If anyone helps me out with this, I will compensate you generously. I am scared and lost. I never deserved bitcoin to begin with. If I can't get them back...well...enjoy the value appreciation, I guess, everyone. =( Such shame I have never felt; such guilt I may never feel again.
I have tried my old wallet.dat files repeatedly before coming to the realization that encrypted wallets change with each and every transaction...and the one backup I thought I made (moved, not copied) says it is corrupt.
It's easy to pretend what this feels like, but it's much worse in person. Educate yourselves and split up your wallets - now. Don't let this happen to you. If anyone is a kind soul and willing to help, feel free to PM me.
EDIT: I just recovered everything with an old wallet.dat. Tonight I went full tard. Luckily, this was a throwaway. I will never forget this...all of you came together to help, to suggest, to fucking CARE.
I WILL NOW TAKE TOMORROW OFF (sick day since I still feel sick as hell) TO FIX MY OTHER ISSUES WITH THE WALLET (aka putting all my eggs in one basket, keeping on a machine that is not specifically fucking made only for bitcoin, not using electrum/armory, not having my primary storage machine OFFLINE, etc.) All of you - ALL of you - are less selfish and less stupid than me. You should all feel amazing.
submitted by commanderkilly to Bitcoin [link] [comments]

HELP! Bitcoin qt client crashed on my computer with a database error! Lost all my bitcoins?!

hey guys,
The bitcoin qt client was catching up with the blockchain (5 days worth), when after maybe 15 minutes, it comes up with an error, "database corrupted" or something along the lines of that. I looked it up and users said to delete everthing in my %appdata/roaming/bitcoin% directy except the wallet.dat file.
So I did that, and downloaded the latest bitcoin qt client, but as it's got 252 weeks to catch up on, it shows 0 btc, is this normal? Will it show my bitcoins whilst it's done updating?
It should show it at the end, right? Once it's seen the transactions on the blockchain? Sorry, I'm just ultra panicky atm from not seeing my bitcoins :S
EDIT: GOT MY BITCOINS. For anyone that has this problem in the future, it's 99.99% likely it's a RAM problem. Took my dodgy ram stick out and used a rescan tag & it was all good to go! You can also import the boostrap.dat file.
submitted by TheNewHero to Bitcoin [link] [comments]

Have I lost my BSV?

HI guys
So, I've been hodling some BTC in a BitcoinQT wallet since before the BCH and BSV forks and I finally decided to claim them.
My BTC wallet had 4 private keys. I swept those private keys into my Electron Cash wallet, which I had restored from my Electrum wallet seed and had used previously to successfully split the BTC that was in the Electrum wallet.
So far, no problems. All the BCH showed up in Electron Cash. But then I tried the next step, which was use ElectrumSV to copy my Electron Cash wallet and use the built in splitting feature in ElectrumSV. That procedure worked perfectly when I split the BTC that was in my Electrum wallet, but this time, ElectrumSV only showed the BSV that was split from 1 out of the 4 private keys. The other 3 were missing.
The one that did show up, I had actually previously swept that key into my Coinomi BCH wallet before I rembered I had to split the BSV/BCH.
I'm hoping someone here can offer some guidance going forward. Were the coins double-spent whenI swept my BTC keys into Electron Cash? Any idea why ElectrumSV isn't acurately copying my Electron Cash wallet like it's supposed to? The transactions appear on the BCH blockchain, but not the the BSV blockchain. Should I just sweep those BCH keys into Coinomi at this point?
Hope this post wasn't too rambling and convoluted to follow! Any help would be greatly appreciated. Cheers!
submitted by Spunkrawker to btc [link] [comments]

Something really weird just happened...

-- TECH NOOB ALERT --
I got a little confused with how paper wallets should be integrated into wallets and imported a private key manually into first my qt wallet using the debug window (and low and behold, the address got imported into my address book, which I deleted using the regular button), and then manually in my blockchain wallet (and the same thing happened, I think). Finally I discovered the correct way of doing it and it worked very well, the money went in. I felt relatively comfortable with the security.
Today however, I sent 3 people donations of the same amount simultaneously from my QT wallet, but immediately afterwards, my blockchain account emptied of the money from the paper wallet to a random address... It also registered the 3 transactions from my qt wallet as part of the same transaction.
I'm so confused. WTF just happened?
submitted by permanomad to Bitcoin [link] [comments]

I think I'm being abused by a blockchain...

Sorry if this is stupid, but someone tipped me $0.42 of bitcoins... thats kind and fun so I downloaded a wallet and its synching (and has been since the beginning of time).
My understanding is that the blockchain I need is 11-12 gb.
Am I seriously downloading 12 gb ($6.00 worth of internets) in order to hold my $0.42 cents?
Thanks!
Edit: I have successfully bumped my magic internet money into a 'lite' wallet. Thanks for all the help guys, honestly I'm shocked at how bloody active and helpful you guys are!
submitted by Surf_Science to Bitcoin [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

FOUND MY PRIVATE KEYS! But I need help determine the order. I have 11.171 BTC, I'll give 1.17 btc if you can order them correctly

Like title says
submitted by LAkingsAK to Bitcoin [link] [comments]

My wallet is out of sync by over 3 years, why?

Hi, I just recently got a bitcoin wallet.
I bought just under 0.1 BTC earlier and I was waiting for it to appear in my wallet but realised it was out of sync by 3 years and 14 weeks.
It doesn't appear to be snycing, how do I make it sync so I can check my BTC has been delivered?
submitted by timosaurus-rex to Bitcoin [link] [comments]

[TUTORIAL] -- How to SAFELY Claim New RNG Coins Using Your Private Keys

[TUTORIAL] -- How to SAFELY Claim New RNG Coins Using Your Private Keys

https://preview.redd.it/u4x1o4p37zc41.png?width=700&format=png&auto=webp&s=01d1ff52c0b7fc1c9ae5bb4f161979ad1f4bb559
I’m a longtime blockchain enthusiast and developer and one of my biggest gripes about this space is how quickly every new project is widely dismissed as a “scam” or “shitcoin” by so many people before it even gets off the ground. Sure, there is a lot of uncharted territory with pirates lurking to steal your bags left and right but with a small amount of personal education you can exist safely in the world of crypto I promise! With this article I aim to help lift your knowledge a little higher while helping keep your funds a little safer!

So What Is Happening?

On Tuesday February 18, 2020 a new coin named Ring (RNG) will be minted. This coin aims to bring two unique and fresh methods of proofing to the crypto game, quite literally: Agent-Based Hive Mining (borrowed from LCC) and Proof-of-Play Mining, where literal gameplay is used to hash and reward miners! To celebrate and help spread the word, the team is giving away claims of free RNG to all holders of the following coins:
  • Litecoin Cash (LCC)
  • Bitcoin (BTC)
  • Dash (DASH)
  • Dogecoin (DOGE)
It's being touted as the world's first crypto "4-way fork" but I'd really call it more of a "4-way claim" since its a brand new chain and not based on the code of any of the rewarded coins. It's simply a clever method of allowing a wider range of coin holders a chance to participate in the launch of these exciting new features!

How Will This Process Work?

On the 18th of February, a balance snapshot will be taken of the four chains listed above. Anyone holding a balance with any of these coins at the time of the snapshot will be forever eligible to claim their RNG at any time. Because the only way to prove ownership of a crypto address is to supply the private keys, and pretty much EVERYONE will tell you to guard those things with your life, below I will outline exactly what to do so there is absolutely 0% risk of losing a single satoshi! This method will apply to ANY claim rewards of any coin in the future as well. Always practice #SafeForking!

How Do I Safely Claim My RNG?

STEP 1 -- BEFORE THE SNAPSHOT -- VERIFY ACCESS TO YOUR PRIVATE KEYS
All core wallets will allow you to export a private key of any address in your wallet but many third party services like exchanges and hot wallets do not allow access to them. In these cases you will need to send your funds out of the third party service and into some kind of personal wallet where you can reach the private keys yourself. Then just wait for the snapshot to happen…
To make things easier on yourself, you can optionally collect your original coins into as few addresses as possible BEFORE the snapshot. Doing so reduces the number of keys you will need to empty and import later. It’s just less work!
\** SNAPSHOT HAPPENS HERE... ****
STEP 2 -- ATER THE SNAPSHOT -- EMPTY ALL ADDRESSES YOU WISH TO CLAIM
After the snapshot is confirmed, withdraw all coins OUT of each of your origin coin addresses into brand new addresses leaving the original ones quite empty. This way when you import later there is NO risk of losing anything! Also know that after you import these private keys you should never use them again for safety’s sake! It’s kind of the whole reason you’re even reading this article in the first place.
STEP 3 -- EXPORT PRIVATE KEYS FOR ALL ADDRESS YOU WISH TO CLAIM
This is the most difficult part, are you ready? Once each claim address is confirmed to be EMPTY, you must obtain each one’s private keys. This will entirely depend on the wallet you use (QT example below) but for all core wallets there is generally an option for exporting private keys somewhere in there. Collect them all!
How to Export QT Wallet Private Keys:⛔️ — DISABLE INTERNET FOR SAFETY — ⛔️- Open the QT wallet client- Click on HELP in the menu bar- Click on DEBUG WINDOW- Click on the CONSOLE tab- Click inside the input box at the bottom(if your wallet is locked…)- Type: walletpassphrase [Password] 600(this unlocks your wallet for 10 minutes)- Type: dumpprivkey [Address]- Copy the output hash, paste it into a list somewhere.(repeat as needed, clear your clipboard history after)- Type: walletlock (if applicable)⚡ — RE-ENABLE YOUR INTERNET —
STEP 4 -- IMPORT ALL PRIVATE KEYS INTO RNG CORE WALLET
\** PLEASE VERIFY THAT EVERY CLAIM ADDRESS IS EMPTY BEFORE CONTINUING... ****
The final step is to simply import each of these private keys into the new Ring Core Wallet to claim your free RNG rewards. The wallet handles this part automatically and you will see your new RNG balance right away. You can find this option under the File > Import Private Keys menu.
Importing a private key is the only way to prove ownership of a crypto address so this is unavoidable if you want to claim new coins from it. The steps above will allow you to prove ownership of your snapshotted address balance plus use its empty key to then claim your new coins thus keeping your original coins completely protected in the brand new address with a new private key (which you should now also keep VERY private!)
By emptying the address before you import it’s private key you eliminate the risk of theft entirely. One cannot take from an already empty jar. It should also be noted to NEVER use the imported address again as an added safety precaution*!*
👏👏👏 DONE! ENJOY YOUR FREE MONEY! 👏👏👏

How Much RNG Will I Receive?

Litecoin Cash holders will receive the highest claim ratio (5000 LCC = 1 RNG) as the LCC team are the ones responsible for creating Ring and wanted to extend a heart-felt thank you to the LCC community for their years of support. All other coins will be based on a 1:1 ratio with the value of Bitcoin at the time of the fork. This of course means 1 BTC = 1 RNG. For DASH and DOGE, however, their BTC market prices will determine their reward ratios. (For example if DASH is trading at 0.015 BTC each, then each DASH coin will net you a reward of 0.015 RNG to match.) Of course you don't need whole coins to claim, partial decimals work just fine!

What Value Will RNG Have?

That, my friends, is entirely up to the markets. No one in the history of crypto has had a perfect track record of price predictions so I'm not even going to try here. I will say, though, having gotten to play with their Testnet a bit so far that I am very impressed with the new Proof-of-Play method and how they have initially implemented it. It bodes very good things for the future of their project and this coin so I personally would expect its value to hold and most likely rise steadily as more people become aware of this groundbreaking new tech and it's potential to expand outward!

Is Litecoin Cash Still Going To Exist?

Absolutely! At least, from what I can gather. LCC has it's own purposes and will continue to be developed on. Ring is not meant to be a replacement or upgrade of any kind to Litecoin Cash. It is an entirely different proofing algorithm and a different mission statement altogether. It's more so meant to help expose the amazing new technologies developed on the LCC blockchain to a wider audience beyond simply its own fan base. If anything it'll act a sister chain that can help expose more folks to LCC in the future!

Disclaimer

While I am a moderator for the Litecoin Cash Discord server, I am writing this from an independent point of view as an educated crypto enthusiast with a passion for helping others navigate these waters. Having been an initial forker and third party developer on top of LCC myself, I feel I have some valuable insight into the direction the team is taking and I wanted to offer some sound advice for the upcoming Ring fork before the FUD gets caked on too thick.
I know a lot of people get scared easily in crypto because of the rampant scamming that goes on but I've watched this team work their asses off for two years to get out from under the stain of Charlie Lee's very biased, uneducated "its a scam" tweet which was endlessly parroted throughout the Litecoin community with nothing but blind party loyalty and no due diligence. The LCC folks are kind, wonderful hard-working people with big hearts and ambition and they have actually developed a unique proofing methodology that is likely going to impress a lot of people!
So before you go jumping on the "it's just another shitcoin" bandwagon please stop and take a real hard look at both Litecoin Cash (LCC) and Ring (RNG): two viable projects with something to bring to the table! If nothing else, hey, just claim your new coins and dump them off for some free money. You literally cannot lose if you PRACTICE SAFE FORKING!!!
Good luck, cryptonauts!
=A=
submitted by auscoine to RingCoin [link] [comments]

Bitcoin Private and Public Keys Explained Simply - YouTube Hack bitcoin (private script) 2019 How to findee private key bitcoin with balance 2020 - YouTube Bitcoin Wallet Hack! A program that searches for the ... George Levy - What are Bitcoin Public and Private Keys ...

Using Blockchain.info. As of August 2012, possibly the easiest way to import a private key is using Blockchain.info's My Wallet service. When successully imported through the "Import/Export" screen, the bitcoins assigned to a private key can be immediately sent to any Bitcoin address. It is extremely risky and not recommended to use Blockchain.info or any online third-party service to import ... Importing private key text to your Bitcoin.com wallet This is how to import using the copy-to-clipboard method. If you receive an email on your device with your exported wallet, or choose "Copy to clipboard", on most devices you can press the screen and wait for a “Paste” button to appear, then paste the backup code in to the field. Bitcoin private key is a secret number that allows cryptocurrency to be spent. Every Bitcoin address has a matching private key, which is saved in the wallet file of the person who owns the balance. The private key is mathematically related to the address, and is designed so that the Bitcoin address can be calculated from the private key, but importantly, the same cannot be done in reverse. Bitcoin Private Keys Directory. PrivateKeys.pw is the most complete Bitcoin, Bitcoin Segwit, Bitcoin Cash, Bitcoin SV, Ethereum, Litecoin, Dogecoin, Dash, Zcash, CLAM private keys explorer. Our directory contains all possible Elliptic Curve Digital Signature Algorithm (ECDSA) secp256k1 private keys in decimal, hexadecimal, raw, and WIF formats. For each private key we list both compressed and ... Trying to use this posted method: To export a private key from your Satoshi bitcoin-qt client: launch your bitcoin client as usual and wait for it to load the blockchain and start up click on 'help' in the menu bar (top right) click on 'debug window' select the 'console' tab type: walletpassphrase "your walletpassphrase here" 600 type: dumpprivkey [your bitcoin address here] this will return ...

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Bitcoin Private and Public Keys Explained Simply - YouTube

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