Bitcoin Qt Debian Install - FEDEC

Gridcoin "Fern" Release
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.



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.


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.


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



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.







As a reminder:









Detailed Changelog

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





submitted by jamescowens to gridcoin [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.
Step 1: Go to (click Bitcoin QT)
Step 2: Go to
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
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.
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]

Groestlcoin 6th Anniversary Release


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?

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.
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.

Other Linux


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


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.





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.



Main Release (Main Net)
Testnet Release


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.


Live Version (Not Recommended)



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).





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).




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.


Remastered Improvements



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.



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


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.



Linux / OSX (Instructions)


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.



Main Net
Main Net (FDroid)
Test Net


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.




UPDATED – P2Pool Test Net



Pre-Hosted Testnet P2Pool is available via


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]

Yep, I did it officially.

It was not intentional, not not at all. I sent my 1BTC to my computers assigned bitcoin address, saved the .dat file and formatted my PC and re-installed bitcoin. About to restore my saved .dat file to notice it did not save at all to my external drive (WTF - Crazy moment and recoveries started) to no avail I lost my bitcoin.
Long live in peace!
From: (to...)
submitted by Sparrow-Sean to Bitcoin [link] [comments]

(Updated) [Staking] Reddcoin Core client GUI wallet on a Raspberry Pi Model 3B


This thread is an update to my first Reddcoin staking tutorial that was written 7 months ago.
The reason for the update
My Reddcoin Core software crashed and became unusable. My Raspberry Pi 3B would lag and freeze, I couldn't stake anymore.
Instead of just redoing everything the same way, I wanted to see if I could improve on 3 points:
The updates
If you would like to tip me
Writing a tutorial like this takes time and effort; tips are appreciated. My Reddcoin address: RqvdnNX5MTam855Y2Vudv7yVgtXdcYaQAW.





This video shows how long it takes to start Reddcoin Core.   TL;DR:


Backup your wallet to prevent losing the RDDs in your wallet! There are two methods to backup, do both. Make new backups if you create a new receiving address!
Boot with only 1 USB drive plugged in:
Make sure only the USB drive (with the swap partition and data partition) is plugged in when you boot up your Raspberry Pi. This to make sure the swap partition (/dev/sda1) is recognized correctly.   If you boot up with multiple USB drives, Lubuntu might see the USB drive with the swap partition as the second drive (instead of the first drive), and ignore the 2 GB swap partition. If this happens, starting Reddcoin can render the Raspberry Pi unresponsive.
Connection issues If you have issues syncing the blockchain because you have 0 network connections, please follow the instructions in this thread.
Start Reddcoin Core easier
Run a shell script (.sh file), so you can start Reddcoin just by double clicking on an icon on your Desktop.
Minimization options
Adjust minimization options, so you can safely press on the X button (the close/exit button on the upper right corner).
RealVNC VNC Viewer (client) and VNC Connect (server): To remote connect to the Raspberry Pi, I use VNC Viewer ad VNC Connect from RealVNC.
Chromium as browser: The updates break Firefox, the browser crashes when you try to run it. Install another browser, Chromium, to solve this issue.
Updates / Upgrades
If Software Updater shows up and tells you that there is updated software available, do not install the updates using Software Updater. Use LXTerminal to update Lubuntu.  


Credits in previous tutorial:
submitted by Yavuz_Selim to reddCoin [link] [comments]

Proposed Statement Of Work (SOW) For PIVX Blockchain Wallet Tutorial Campaign

Date: February 11, 2019
Client’s Name: PIVX
Project Name: PIVX Blockchain Wallet Tutorial Campaign
Representatives For Each Cryptocurrency Project: PIVX Community
Representatives For www.Cryptocurrency.Market:
Denni Lovejoy, Software Tutorial Specialist

I. Summary

Currently there are over 2,000 cryptocurrency projects listed on Many of these cryptocurrency projects have their own official “decentralized wallets”, use recommended third-party wallets or are in the process of developing their wallet software.
For example, the PIVX community created the PIVX QT Wallet.
Many newcomers entering the crypto market will not be computer or software savvy and will not properly set up, protect and secure their cryptocurrency wallets. Crypto projects such as PIVX will need Blockchain Tutorials for the PIVX Wallet to help new users understand how to use the wallet correctly.
The goal of this proposal is to obtain funding to create:
  1. Create a set of PIVX tutorials to help educate the public on how to use the the PIVX wallet and PIVX Central account in a step by step user friendly way. This set of tutorials will include:

II. Introduction

My name is Denni Lovejoy, I am a Blockchain Tutorial Specialist at www.Cryptocurrency.Market and you can view the quality of my past blockchain tutorials here:
Blockchain Tutorial Playlist
Blockchain Tutorial #41 - How To Setup A PIVX Wallet
I started creating blockchain tutorials to help newbies avoid getting hacked by bad actors in the crypto community. I chose to work with Tai Zen & Leon Fu Dot Com’s www.Cryptocurrency.Market channel because they were the 1st and only channel on the internet back in early 2013 that I found to be talking about trading and investing in bitcoin and cryptocurrencies. For example, they were the only channel that I know of to recommend investing in Bitcoin, Bitcoin Cash, Ethereum, Ethereum Classic, Stratis, Monero, Decred, NXT, Antshares, etc. when everyone else was afraid to do so. These coins all turned out to be huge winners.
I learned from the www.Cryptocurrency.Market channel that the #1 most important thing in cryptocurrencies is to survive. Unfortunately, many people who have bought cryptocurrencies lost them because of a lack of security, privacy and formal education on how to use their digital wallets correctly. The lack of blockchain tutorials amongst all cryptocurrencies is why I started my Blockchain Tutorial playlist on the Cryptocurrency Market channel. I believe uneducated newbies in the crypto community who do not understand what it takes to secure, protect and use their digital wallets will mistakenly leave their crypto on exchanges which is subject to being hacked or stolen and will not back up their private keys.
I have been monitoring the digital wallet space for quite some time now and I have chosen to associate my brand/ reputation & seek funding from the PIVX community for due to the project’s a) professionalism b) software engineering/technical abilities and most importantly c) a working privacy cryptocurrency and lastly d) the PIVX team has working decentralized wallets located on
For the above reasons and the fact that I am more comfortable working with people I have personally met in person, I RESPECTFULLY submit this formal proposal to the PIVX community to request funding for myself to create an ambitious, 3rd party, independent, unbiased blockchain tutorials to educate the public on how to use the PIVX wallet and PIVX Central account correctly.

III. Objectives

To create a series of tutorial videos to:
  1. Educate the public on how to setup and use the PIVX wallet with a set of user friendly Blockchain Tutorials.
  2. Educate the public on how to set up a PIVX Central account and make a PIVX proposal.
  3. Educate the public on how to avoid common mistakes and pitfalls in key parts of the tutorials.

IV. “Blockchain Tutorial” Deliverables

TUTORIAL 1: How To Set Up & Use The PIVX QT Wallet ($500) [VIDEO FORMAT]
  1. In this phase, I will help viewers understand the initial process on how to download and install the PIVX QT wallet.
  2. Explain how to send and receive PIVX on the PIVX wallet.
  3. Explain how to backup, protect and update the PIVX wallet.
TUTORIAL 2: How to Set Up The Deterministic zPIV Wallet & Stake zPIV ($500) [VIDEO FORMAT]
  1. In this phase, I will demonstrate how to set up a zPIV wallet and stake zPIV.
TUTORIAL 3: How To Make A PIVX Central Account, Upvote/ Downvote, Comment & Make a PIVX Proposal ($500) [VIDEO FORMAT]
  1. In this phase, I will demonstrate how to make a PIVX Central account, show users how to upvote/ downvote and comment on the proposals.
  2. In this phase, I will provide the step by step details on how to make a PIVX Proposal.

V. Pricing & Terms

If you are interested in having me create the video tutorials mentioned in Section IV. “Blockchain Tutorial” Deliverables for your crypto project the cost will be as follows:
  1. I respectfully request $1,500 worth of PIVX for me to complete the section IV. “Blockchain Tutorial” Deliverables.
  2. The grand total cost of section IV. “Blockchain Tutorial” Deliverables = $1,550. (Includes Proposal Submission Fee)
  3. The estimated completion time for this entire proposal: 10 Hours x 4 Videos = 40 Hours x $37.5 USD/hour = $1,500 USD for Content Creation. This proposed schedule is to do this work in under 1 month allowing me to create 1 tutorial per week.
  4. Payment will be paid in PIVX (PIVX) by a PIVX Representative to me and will be processed after all 3 tutorials are accepted by the PIVX community. I will email a PIVX Representative an invoice with the details.
  5. I will include 1 revision per video.

VI. Conditions

  1. The tutorials will be hosted on the PIVX YouTube channel or any other official platform and not hosted anywhere else.
  2. I will get all my basic questions answered on PIVX support channels.
  3. I will state in the videos that I’m being sponsored by the PIVX Community anywhere that is deemed appropriate.
  4. PIVX will own the copyrights to the content created in this SOW and the PIVX Project has the right to use the content without asking me for permission.
  5. Videos will follow the PIVX design guidelines.
  6. Videos will be reviewed for accuracy by representatives of the PIVX community before being released to the public.
I am submitting this first draft of my proposed Statement Of Work (SOW) to invite feedback and commentary from the PIVX community.

The following are questions are for PIVX to consider and are not part of the SOW.

Statement Of Work (SOW) FAQ:
1. What is Denni Lovejoy’s big picture approach to help educate and promote PIVX to the public?
This entire SOW is based on the premise that PIVX is sponsoring me to do a series of educational/ tutorial style videos of the cryptocurrency governance coin sector.
2. Why are you taking a tutorial-based style approach to the videos?
The reason for this approach is to help viewers AVOID any mistakes they may make while going through ANY of the processes associated with using PIVX software.
3. Will you follow the PIVX design guidelines and have consistent screen-design intro/ outros?
Yes, I plan to use consistent screen-design and leverage anything additional the PIVX design and support team can offer me including intro, outros, disclaimers, ideas, etc. I will be following the guidelines found on
4. Do you plan to publish the videos on the Youtube channel of your company or will they go into the official PIVX Youtube channel?
No, I do not plan to publish the videos on our 'Cryptocurrency Market' YouTube channel which has over 26,000 subscribers and over 700 videos. PIVX will have all the rights to the videos and will not be hosted elsewhere.
5. What is your target reach expectations and how do you want to keep the videos up-to-date if something changes in the GUI/software?
I do not plan on doing any advertising or marketing for the tutorials and will let the PIVX PR marketing team strategize that. I can speak with the PR team as needed, but my proposal is to create video content only suggested by the community.
I will give 1 revision per video if any of the videos need updating.
6. Did the other cryptocurrency projects you made video tutorials for also pay for their production?
No. My approach has been to create 66 blockchain tutorials for free first, to then leverage this work portfolio as my Proof-Of-Skill so that I can approach projects like PIVX with my proposal.
7. After watching your videos on youtube the production does not feel in step with our current educational videos:
I can adapt to the current style of educational videos listed on the PIVX Class channel. The main differences I can adjust to are: a) include background music during the intro and outro b) use themed transitions and text pop ups. If this is what the community prefers, let me know. However, I can add one element to the tutorials for consideration. I can record my face while guiding viewers through the tutorial to offer a more human feel as if I'm holding your hand or you're looking over my shoulders in every step of the process.
Please let me know if you have any questions or suggestions about my proposal.
submitted by DenniLovejoy to pivx [link] [comments]

Homelab collective ressources post!

Hey guys!
I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
Latest Additions
Homelab Dashboard
Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
User Screenshot Source
yours truly
NiknakSi TBA
yourofl10 TBA
mescon & SyNiK4L
Or build yours from scratch: PRTG API, ELK, Grafana, freeboard, JumpSquares
Some other resources: Custom Monitoring Scripts by 0110010001100010
Credits to apt64 for his original post
= Pi specific =
= Download Automation =
= Virtualization =
= Monitoring =
= Media Center =
= Remote access =
= VOIP =
= Networking =
= File Servers/Storage/RAID =
= Cameras =
= Documentation =
= Dynamic DNS =
= Backup =
= Creating network diagrams =
= Guides =
= Misc =
That's all I could come up with on top of my head + some research, passing over to you guys so we can get a nice complete list!
Let's try and stick with free(or mostly) softwares, let me know if you guys feel otherwise.
submitted by Gabisonfire to homelab [link] [comments]

[ELI5] Extracting Privkeys from QT/Core

We have a constant stream of people coming back after abandoning Dogecoin and the sub in 2014 when the price fell. These people all have old versions of QT and are now basically trying to recover their coins, presumably to cash out and abandon us again. This is causing strain for the network, as far more people are trying to leech blocks than seed them.
The thing is, none of this is necessary. Especially if you're just going to dump coins. With resources such as all you need are your private keys, and you can create, sign and broadcast transactions yourself. No client required, let alone one as resource-hungry as QT.

"So, how do I get my keys?"

First of all, lets talk about data management. The overwhelming majority of coins are not lost through theft, especially direct theft of wallets (as distinct from wholesale thefts/scams/implosions like Moolah, GAW, MtGox, Cryptsy, and even our own beloved Dogetipbot). Most coins are lost because people forget about their wallets and do silly things like reformat hard drives, lose passwords and so on.
So, everyone should have a wallet list. Here is a sample bit of HTML that gives you a page with two columns of wallets, one for local wallets you would withdraw coins to, the other the third-party wallets you would deposit coins to third parties through (do note that many services use temporary addresses generated for deposits which expire after 24h or so). A page like this is how I manage my 100+ wallets, and I have copies on my network and hidden online. Such a page makes it easy to at least keep track of all your wallets, for a trivial amount of work to set up.
 Sample - Twitter Fr DFXXz9gq3WkgJaHn9tXRChMhFQcwm4Y251 To DByYgzd4ec5Ku9vPag8XqoBfyRpsoj8Xs3 @TipDoge Sample - Backslash Fr DSDyv83VC1QtEnmJ4ATKFn5Sw3iC12VLmX To D9MsxSyJe5Mq7fWFRpC7zQQt1gexHccN4w Backslash To DJ3GL68kw8vh99RvxnEmQKE8A3cWRoEEqo Backslash Faucet Sample - To DE5QamzWVnxK2HmCS61cUsrn9iwgTArunU 

"OK, great, so now I have a list of my wallets. Now what?"

Now you're going to need the private keys for each of those wallets. Obviously you're not going to store these in a public place though. So you will need a separate file, which can just be plain text. Copy each of those addresses into it.
Now go ahead and fire up QT. If you haven't synced it in 3 years, its going to take forever, but that doesn't matter. You don't actually need the blockchain for this, so you don't have to wait for it to catch up.
Open up the console which is in the Help menu. Then give the command dumpprivkey with the wallet address you want the key to. Then use the up-arrow key to bring that command back, replace the address with the next one, and keep going until you have them all.
It will look something like this:
 13:05:18 Welcome to the Dogecoin RPC console. Use up and down arrows to navigate history, and Ctrl-L to clear screen. Type help for an overview of available commands. 13:11:06 dumpprivkey D9xDcRthB6XP4vRGqiyKdDfVJ7CWhYuBBi 13:11:06 6KEcssuq1wWUrFVmMF8yDxHuAdQMiRezz53zDxADLmyoXnix7iM 13:12:00 dumpprivkey DUDARNrGHVTFcCgriwRWgDQJPKDuDQr9jg 13:12:00 6JNk6NNFZcr49fbsD2jcTfTxFLjJKq9DHQ5JU8CYeZ2Cz6JdKMY 13:12:25 dumpprivkey DG6xnwCT6BXePaySqU85XocobZmhbJczQH 13:12:25 6JNXFv95Mp9SzehHw9jojjdxHRNPeh77qCsRbaNwJZMp9MKCAu3 
Yes, those are real wallets. But don't bother trying to steal my coins, I just generated them on and they're empty.
That's basically it. All you need to do is add some descriptions of what the wallets are, pretty up the format to your liking, and save copies in multiple, secure places, including printed out.

Remember, if you lose your keys, OR someone else sees them, you lose your coins!

If those were my real wallets above, you could use the keys and spend my coins. So obviously, don't let anyone else, especially annoying little brothers, get their grubby hands on them. But also make sure they can be discovered if anything happens to you. That's why the printed copies... nobody is going to go trolling through your porn or warez collection on the offchance there's something valuable in there. But they will look in your safe or wherever you store other important documents. Just be sure to leave a note as to what they are and how to use them. Remember the woman who came here a couple years ago who had found a USB stick with 110 BTC in a locked wallet.dat on it from her dead husband? I sometimes wonder if she ever got the money. Don't be her. Or him.

"OK, great. Now I have my keys. What now?"

Well, you can spend coins using from any wallet you have the keys to. First step is to choose the network. Dogecoin (mainnet) obviously. Then go to Transaction in the +New menu. Enter your address and hit the Load button. It will pull in the first 100 transactions. Now enter the address to pay, and the amount.
Note the Transaction Fee box!
You want this amount to be zero. Depending on whether you're moving coins to another of your wallets to consolidate them (a very good idea.. go read the UTXO ELI5, which you will find a couple pages into - Yes, I'm going to make you work for it, cos there's tons of useful stuff there you need to know), or paying someone else, you may want to select which inputs to use.
Once you're happy with the transaction, go ahead and submit it. You will now get a block of text, which is the raw, unsigned transaction. Copy this. Go to the Sign tab. Paste it. Add your private key and Submit to sign it.
After a little bit, you will get a signed transaction. Copy it. Go to the Broadcast tab, paste it and hit Submit.
That's it. It should go into the next block in a minute or two. Yes, even without paying a mining fee. Our network is so lightly loaded that there are no contention issues like the Bitcoin people have to put up with.

"That's it? So why do I need QT?"

You don't. The process above is all that's involved in spending coins. Everything else is window dressing. So there is no need to run QT, or any other client. Oh, and since you can download the site and run it locally (mostly offline), there is no security issue beyond the usual keyloggers/spyware that can compromise anything. And by knowing how to do this, you are much better protected from accidental loss than someone who blindly trusts black boxes they don't understand.
Oh, one final thing... if you really want to help the network by seeding rather than leeching, go ahead and run a full node. Instructions are in that link above. AND you may want to help seed the bootstrap file torrent from a couple of days ago. Just because YOU don't need it, doesn't mean others don't, right?
submitted by Fulvio55 to dogecoin [link] [comments]

Lost most of my Doge late 2013. There may be one last solution to getting some back. Does anyone have a copy of "DogeCoin version v0.6.4.0-unk-beta" or know which release it is directly linked to?

My keys corrupted and i didn't have a recent backup, after the upgrade lost all the doges.

I think there might be one more hope of finding some, and would appreciate if anyone knows which version " v0.6.4.0-unk-beta" which is on the debug.log output.

Noticed after all this time after digging through Bitcoin release notes that before bip32/hd wallets came in or as a matter of fact As they came in too (thanks devs). Most if not everyone i asked thought backing up the wallet.dat file is good enough, or the old --salvagewallet nor -zapwalletxes. They either aggressively scrambled the wallet making it more likely destroy even more keys, sure saved a few coins but most of the addresses in the keypool which has a size of 100 didn't have a corresponding private key anywhere in the wallet AFAIKT,
Sorry before i rant, i just need some info on if this wallet if linked to a specific Dogecoin version and just happens to say v0.6.4.0 in the debug log file.

I can't update directly to any other version without the wallet breaking up. Apparently i need the exact version that was last used, and turn it off extra safely so the log files which hold some parts of the keys go back to the Wallet.dat or something.

I tried all solutions, this might just work. from the "Bitcoin version 0.7.1 Readme file."
How to Upgrade
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 (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or bitcoind/bitcoin-qt (on Linux).
If you were running on Linux with a version that might have been compiled with a different version of Berkeley DB (for example, if you were using an Ubuntu PPA version), then run the old version again with the -detachdb argument and shut it down; if you do not, then the new version will not be able to read the database files and will exit with an error.
Explanation of -detachdb (and the new “stop true” RPC command): The Berkeley DB database library stores data in both “.dat” and “log” files, so the database is always in a consistent state, even in case of power failure or other sudden shutdown. The format of the “.dat” files is portable between different versions of Berkeley DB, but the “log” files are not– even minor version differences may have incompatible “log” files. The -detachdb option moves any pending changes from the “log” files to the “blkindex.dat” file for maximum compatibility, but makes shutdown much slower. Note that the “wallet.dat” file is always detached, and versions prior to 0.6.0 detached all databases at shutdown.
or on shut down the coin client using the -detatchdb comas coins use both log and dat files with berkeley.



submitted by doge_messiah to dogecoin [link] [comments]

How To Use Coin Control & Stake More With 'PoS' DEAL Coins

How To Use Coin Control & Stake More With 'PoS' DEAL Coins
When you are using Proof of Stake (PoS) coins, active coin control is essential to ensuring that you maximize your PoS rewards. If you do not use coin control you may benefit less from the compounding of your rewards, and you may lose more rewards than necessary when you make a payment from your wallet.
Exactly how much difference this makes will depend on the specifications of the coin itself, and what transactions you make. It is particularly important for coins such as IdealCash, in which small and medium-sized holders must wait a long time between each time they stake and get a reward.
This presents a manual method of coin control for users of Qt wallets!
Why You Need to Use Coin Control
As I already stated, small and medium-sized IdealCash holders must wait a long time before they stake. When you do finally get to stake some coins, you do not get the interest due on your whole balance; instead, one of the payments you have received is selected and you earn the rewards due on that amount. The rest of your interest is not lost, it keeps building up and you get it later. But what this means is that if you receive a single payment for 10,000 coins, for example, you will earn more compound interest than if you receive 10 payments for 1,000 coins, even though your balance is the same. This is because in both cases you will wait the same amount of time before getting your first reward, but in the first instance you will receive all of your interest at once, whereas in the second example you will receive only 10% as much on your first stake. Because you can earn PoS rewards on your PoS rewards (compounding) that mean you will eventually end up with more money in the first example when you got a single payment than you would in the second example where you got 10 payments that added up to the same amount.
In the example above you could easily fix this without getting into any advanced techniques simply by using your wallet in the ordinary way to send yourself 10,000 coins. By doing this you would combine all of the outputs – all 10 of the 1,000 IdealCash payments – into a single output. But sometimes things can be a little more complicated. For example, let's say you receive a single payment of 10,000 coins, and leave it in your wallet to stake. After 8 weeks you still haven’t earned your first reward, but have built up a nice bit of ‘interest owed’ on these coins. You now receive those 10 payments for 1,000 each we looked at before. When you spend any coins in your wallet, you lose the unpaid rewards owed to you for staking them. So in this example, you would want to send a 10,000 IdealCash payment to yourself using these 10 new payments. But if you simply use the wallet as normal to send a payment to yourself it will probably not do this – it will use the 10,000 you got in your first deposit, destroying your earned rewards and doing nothing to consolidate the smaller payments. To do this, you need to be able to specify which outputs (which payments received) you want to use to create your transaction; that is what I am going to show you how to accomplish in this guide.
Coin control can also be useful when sending payments from your wallet. By specifying which outputs to use in order to make a payment you can ensure that you are not losing rewards unnecessarily. Please be aware, however, that when sending payments to somebody else you will probably need to send yourself change because each output is used entirely in each transaction. I will explain this properly later on in the guide, but for now just be aware that if you don’t do this you may lose some of your coins.
Manual Coin Control Using the Qt Wallet Console
Manual coin control requires you to use the console rather than the GUI. That means instead of just selecting options from menus, you have to manually type commands. These commands must be precise and use the correct grammar or they won’t work, so please read the instructions carefully and check that you have typed each command correctly before hitting enter.
To open a console window you just need to click ‘Help’ from the navigation menu of your wallet, then select ‘Debug Window’. This will open up a new window with two tabs: click ‘console’ to get to the tab that we are going to use here.
Step One: List Unspent Outputs In your console window type “listunspent” (without the quotation marks) and hit enter. This will give you a list of all the outputs of previous transactions which belong to you, or in more plain language, all of the payments that you have received.
Each one will appear between curly brackets and should look something like this:
"txid" : "a long list of random looking characters should be here",
"vout" : "this should be a number",
"address" : "this is the IdealCash address belonging to you that these coins where sent to",
"account" : "",
"scriptPubKey" : "another long list of random looking characters",
"amount" : "the number of coins you received",
"confirmations" : "the number of confirmations for this transaction"
You can use this list to select the outputs you want to use to make a payment. For example, IdealCash owners may want to select smaller and newer outputs (newer outputs will have fewer confirmations) and leave any older and larger ones.
When you have chosen which ones you want to use, make a note of the exact “amount” for each one. If you have received coins with more than one address then you will also need a list of each address that appears in one of the outputs you are going to use.
Once you have made a note of these things separately, we only need the “txid”, “vout” and “scriptPubKey” to put into the next step. You may like to copy and paste each one into a text editor and then delete every line apart from those three, to leave something like this:
"txid" : "a long list of random looking characters should be here",
"vout" : "this should be a number",
"scriptPubKey" : "another long list of random looking characters"
Notice that I have removed the comma from the end of the “scriptPubKey” line. Commas must always be included at the end of each line, apart from the last one. This is one of those annoying grammar things that you have to get right (and which I personally mess up more often than not). Don’t worry too much, if you get this kind of thing wrong you won’t lose any coins, it just won’t accept the command. Also please note that if you are not a programmer then you officially will be after you’ve done this, so feel free to be a bit proud of yourself.
Creating a Raw Transaction
The next step is to use the outputs we have selected to build the code for a complete transaction.
You should have a list of edited outputs from the last section. Put them, complete with brackets, into the command below:
createrawtransaction '[output1, output2]' '{"address you want to send coins to" : number of coins to send}' The number of coins you are sending must be exactly equal to total of all the outputs you have used minus the transaction fee (0.01). It is very important that you get this right as you could lose coins if you make a mistake here. For example, if you have one output with an amount of 1,000 and another with an amount of 2,000 then you must send 2999.99 coins (1000+2000-0.01). If you were to make a mistake and send just 2,000 coins, then you would end up paying a fee of 1,000 coins that you would never see again.
To give you an idea of what this should look you can see an example of a raw bitcoin transaction taken from this Reddit thread below:
createrawtransaction '[{"txid":"c7e5e03d2ab5458819eedec46d0ba38ca7a6525e38b493073277cf4a1550a348","vout":1,"scriptPubKey":"76a9144a06df74729aef1dce5e4641960da3a439d2460b88ac"},
IdealCash and most other altcoins will use the exact same format. In this example you can hopefully see that two addresses are listed to send coins to, with an amount for each one and a comma between them. If you are manually creating a transaction to send coins to somebody else then you will probably need to do this, because you will probably need to select outputs which add up to more than the amount you want to send, and then send the change to yourself. For example, you may have outputs of 10 and 15, but you want to send 20 coins – so you need to send the remaining 5 to your own address, otherwise they will be added to the transaction fee and lost.
When you have pasted this command into the console and hit enter, if you have managed to get all the grammar right, then you will get a long list of random looking characters as a response. This is your ‘raw transaction hex code’. Copy this for use in the next step.
Signing Your Transaction
You now need to sign your transaction with the private keys of all addresses used in the outputs you chose earlier. You can find your private key for any address using the following console command:
Obviously, you should replace
with the public address you want to get the private key for. If you have encrypted your wallet then you will need to unlock it before doing this.
You can now sign your raw transaction using the following command:
signrawtransaction 'your hex code generated in the last step' '[output1, output2]' '["privatekeyone", "privatekeytwoifneeded"]'
The middle section with output1 and output2 should be exactly the same as you used in the last step when you created the raw transaction.
When you hit the enter button on that command you will get a new, signed hex code. Copy and paste that into the final command:
Sending Your Transaction
The last bit is easy:
sendrawtransaction 'your signed hex code' When you hit enter on that final command your transaction will be broadcast to the network and your console will reply with a transaction id. If you have used this to send coins to yourself in order to consolidate smaller payments for staking, then your wallet GUI should now show ‘payment to yourself -0.01’.
submitted by Tyler__Z to IdealCash [link] [comments]

How to Find the private key of any blockchain address ... Hack bitcoin (private script) 2019 Bitcoin Privat Key Scanner 2017 Bitcoin: How to get Bitcoins off Paper Wallet (import private keys) Bitcoin recovery watch only hack Live Stream

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