A history of bitcoin hacks Bitcoin The Guardian

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]

[OWL WATCH] Waiting for "IOTA TIME" 30;

Disclaimer: This is sort of my own arbitrary editing, so there could be some misunderstandings.
I root for the spread of good spirits and transparency of IF.
📷
Hans Moog [IF]어제 오후 2:45
So why don't we just copy Avalanche? Well that's pretty simple ...
📷
Hans Moog [IF]어제 오후 2:47
1. It doesn't scale very well with the amount of nodes in the network that have no say in the consensus process but are merely consensus consuming nodes (i.e. sensors, edge devices and so on). If you assume that the network will never have more than a few thousand nodes then thats fine but if you want to build a DLT that can cope with millions of devices then it wont work because of the message complexity.
2. If somebody starts spamming conflicts, then the whole network will stop to confirm any transactions and will grind to a halt until the conflict spamming stops. Avalanche thinks that this is not a huge problem because an attacker would have to spend fees for spamming conflicts which means that he couldn't do this forever and would at some point run out of funds.
IOTA tries to build a feeless protocol and a consensus that stops to function if somebody spams conflicts is really not an option for us.
3. If a medium sized validator goes offline due to whatever reason, then the whole network will again stop to confirm any transactions because whenever a query for a nodes opinion can not be answered they reset the counter for consecutive successful voting rounds which will prevent confirmations. Since nodes need to open some ports to be available for queries it is super easy to DDOS validators and again bring the network confirmations to 0.
📷
Hans Moog [IF]어제 오후 3:05
4. Avalanche still processes transactions in "chunks/blocks" by only applying them after they have gone through some consensus process (gathered enough successfull voting rounds), which means that the nodes will waste a significant amount of time where they "wait" for the next chunk to be finished before the transactions are applied to the ledger state. IOTA tries to streamline this process by decoupling consensus and the booking of transactions by using the "parallel reality based ledger state" which means that nodes in IOTA will never waste any time "waiting" for decisions to be made. This will give us much higher throughput numbers.
📷
Hans Moog [IF]어제 오후 3:11
5. Avalanche has some really severe game theoretic problems where nodes are incentivized to attach their transactions to the already decided parts of the DAG because then things like conflict spam won't affect these transactions as badly as the transactions issued by honest nodes. If however every node would follow this "better and selfish" tip selection mechanism then the network will stop to work at all.
Overall the "being able to stop consensus" might not be too bad since you can't really do anything really bad (i.e. double spend) which is why we might not see these kind of attacks in the immediate future but just wait until a few DeFi apps are running on their platform where smart contracts are actually relying on more or less real time execution of the contracts. Then there might be some actual financial gains to be made if the contract halts and we might see alot of these things appear (including selfish tip selection).
Avalanche is barely a top 100 project and nobody attacks these kind of low value networks unless there is something to be gained from such an attack. Saying that the fact that its live on mainnet and hasn't been attacked in 3 weeks is a proof for its security is completely wrong.
Especially considering that 95% of all stake are controlled by avalanche itself
If you control > 50% of the voting power then you essentially control the whole network and attacks can mostly be ignored
I guess there is a reason for avalanche only selling 10% of the token supply to the public because then some of the named problems are less likely to appear
📷
Navin Ramachandran [IF]어제 오후 3:21
I have to say that wtf's suggestion is pretty condescending to all our researchers. It seems heavy on the troll aspect to suggest that we should ditch all our work because iota is only good at industrial adoption. Does wtf actually expect a response to this? Or is this grand standing?
📷
Hans Moog [IF]어제 오후 3:22
The whole argument of "why don't you just use X instead of trying to build a better version" is also a completely idiotic argument. Why did ETH write their own protocol if Bitcoin was already around? Well because they saw problems in Bitcoins approach and tried to improve it.
📷
Hans Moog [IF]어제 오후 3:27
u/Navin Ramachandran [IF] Its like most of his arguments ... remember when he said we should implement colored coins in 2nd layer smart contracts instead of the base layer because they would be more expressive (i.e. turing complete) completely discarding that 2nd layer smart contracts only really work if you have a consensus on data and therefore state for which you need the "traceability" of funds to create these kind of mini blockchains in the tangle?
Colored coins "enable" smart contracts and it wouldnt work the other way round - unless you have a platform that works exactly like ETH where all the nodes validate a single shared execution platform of the smart contracts which is not really scalable and is exactly what we are trying to solve with our approach.
📷
Navin Ramachandran [IF]어제 오후 3:28
Always easier to criticise than build something yourself. But yet he keeps posting these inflammatory posts.
At this point is there any doubt if he is making these comments constructively?
📷
Hans Moog [IF]어제 오후 3:43
If he at least would try to understand IOTAs vision ... then maybe he wouldn't have to ask things like "Why don't you just copy a tech that only works with fees"
📷
Hans Moog [IF]어제 오후 4:35
u/Shaar
I thought this would only be used to 'override' finality, eg if there were network splits. But not in normal consensus
That is not correct. Every single transaction gets booked on arrival using the parallel reality based ledger state. If there are conflicts then we create a "branch" (container in the ledger state) that represents the perception that this particular double spend would be accepted by consensus. After consensus is reached, the container is simply marked as "accepted" and all transactions that are associated with this branch are immediately confirmed as well. This allows us to make the node use all of its computing ressources 24/7 without having to wait for any kind of decision to be made and allows us to scale the throughput to its physical limits. That's the whole idea of the "parallel reality based ledger state" instead of designing a data structure that models the ledger state "after consensus" like everybody else is doing it is tailored to model the ledger state "before consensus" and then you just flip a flag to persist your decision. The "resync mechanism" also uses the branches to measure the amount of approval a certain perception of the ledger state receives. So if my own opinion is not in line with what the rest of the network has accepted (i.e. because I was eclipsed or because there was a network split), then I can use the weight of these branches to detect this "being out of sync" and can do another larger query to re-evaluate my decision.(수정됨)
Also what happens in IOTA if DRNG notes would fall out, does the network continue if no new RNGs appear for a while? Or will new nodes be added sufficiently fast to the DRNG committee that no one notices?
Its a comittee and not just a single DRNG provider. If a few nodes fail then it will still produce random numbers. And even if the whole comittee fails there are fallback RNG's that would be used instead
📷
Hans Moog [IF]어제 오후 4:58
And multiverse doesn't use FPC but only the weight of these branches in the same way as blockchain uses the longest chain wins consensus to choose between conflicts. So nodes simply attach their transactions to the transactions that they have seen first and if there are conflicts then you simply monitor which version received more approval and adjust your opinion accordingly.
📷
Hans Moog [IF]어제 오후 5:07
We started integrating some of the non-controversial concepts (like the approval reset switch) into FPC and are currently refactoring goshimmer to support this
We are also planning to make the big mana holders publish their opinion in the tangle as a public statement, which allows us to measure the rate of approval in a similar way as multiverse would do it
So its starting to converge a bit but we are still using FPC as a metastability breaking mechanism
Once the changes are implemented it should be pretty easy to simulate and test both approaches in parallel
📷
Serguei Popov [IF]어제 오후 5:53
So the ask is that we ditch all our work and fork Avalanche because it has not been attacked in the month or so it has been up?
u/Navin Ramachandran [IF] yeah, that's hilarious. Avalanche consensus (at least their WP version) is clearly scientifically unsound.
📷
Hans Moog [IF]어제 오후 9:43
u/wtf maybe you should research avalanche before proposing such a stupid idea
and you will see that what I wrote is actually true
📷
Hans Moog [IF]어제 오후 9:44
paying fees is what "protects" them atm
and simply the fact that nobody uses the network for anything of value yet
we cant rely on fees making attack vectors "inattractive"
📷
Serguei Popov [IF]어제 오후 10:17
well (1.) very obviously the metastability problems are not a problem in practice,
putting "very obviously" before questionable statements very obviously shows that you are seeking a constructive dialogue 📷 (to make metastability work, the adversary needs to more-or-less know the current opinion vectors of most of the honest participants; I don't see why a sufficiently well-connected adversary cannot query enough honest nodes frequently enough to achieve that)
(2.) .... you'd need an unpredictable number every few tens/hundreds milliseconds, but your DRNG can only produce one every O(seconds).
the above assumption (about "every few tens/hundreds milliseconds") is wrong
We've had this discussion before, where you argued that the assumptions in the FPC-BI paper (incl. "all nodes must be known") are not to be taken 100% strictly, and that the results are to be seen more of an indication of overall performance.
Aham, I see. So, unfortunately, all that time that I invested into explaining that stuff during our last conversation was for nothing. Again, very briefly. The contents of the FPC-BI paper is not "an indication of overall performance". It rather shows (to someone who actually read and understood the paper) why the approach is sound and robust, as it makes one understand what is the mechanism that causes the consensus phenomenon occur.
Yet you don't allow for that same argument to be valid for the "metastability" problem in avalanche,
Incorrect. It's not "that same argument". FPC-BI is a decent academic paper that has precisely formulated results and proofs. The Ava WP (the probabilistic part of it), on the other hand, does not contain proofs of what they call results. More importantly, they don't even show a clear path to those proofs. That's why their system is scientifically unsound.
even when there's a live network that shows that it doesn't matter.
No, it doesn't show that it doesn't matter. It only shows that it works when not properly attacked. Their WP doesn't contain any insight on why those attacks would be difficult/impossible.
📷
Hans Moog [IF]어제 오후 10:56
That proposal was so stupid - Avalanche does several things completely different and we are putting quite a bit og effort into our solution to pretty much fix all of Avalanches shortcomings
If we just wanted to have a working product and dont care about security or performance then we could have just forked a blockchaib
I am pretty confident that once we are done - its going to be extremely close to the besttheoretical thresholds that DLTs will ever be able to achieve for an unsharded baselayer
​-------------------------------------------------------------------------------------------------------------
📷
Bas어제 오전 2:43
Yesterday I was asked how a reasonably big company no one has heard of could best move forward implementing Access for thousands of locations worldwide. (Sorry for the vagueness, it’s all confidential.) They read the article and want to implement it because it seems to fit a problem they’re currently trying to solve. Such moves will vastly increase the utility of protocols like IOTA, and is what the speculation is built on. I do not think you can overestimate what impact Access is going to have. It’s cutting out the middleman for simple things; no server or service needed. That’s huge.
So yes, I think this space will continue to grow u/Coinnave

--------------------------------------------------------------------------------------------------------------
📷
Angelo Capossele [IF]2020.10.02.
In short: we are planning a new v0.3.0 release that should happen very soon. This version will bring fundamental changes to the structure of the entire codebase (but without additional features) so that progressing with the development will be easier and more consistent. We have also obtained outstanding results with the dRNG committee managed by the GoShimmer X-Team, so that will also be integral part of v0.3.0. After that, we will merge the Value Tangle with the Message Tangle, so to have only one Tangle and make the TSA and the orphanage easier to manage. And we are also progressing really well with Mana, that will be the focus after the merge. More or less this is what is going to happen this month.
We will release further details with the upcoming Research Status Update 📷

submitted by btlkhs to Iota [link] [comments]

Coinbase customer support has been useless over the last 36hours in hack.

Timeline update. Radio silence from Coinbase over the last 108 hours.
Approximate timeline of events to Coinbase account compromise and ACH transfer from Chase Bank to Coinbase. Ticket #02674780.
Note that I'm unable too get in touch with coinbase at any point beyond automated emails.
• 2020-09-01 9:18PM: Notice login attempt to dormant Coinbase account.
• 2020-09-01 9:18PM: Notice suspicious activity on email with emails being received and immediately deleted.
• 2020-09-01 9:27PM: Requested my account Coinbase account sign-in be disabled.
• 2020-09-01 9:39PM: Initiate support case with Coinbase.
• 2020-09-02 9:45PM: Learn that cell phone does not appear to be working correctly and I am not receiving texts and cannot make outbound calls. I later come to the realization that the perpetrator has ported my cell phone number to bypass two factor authentication on Coinbase and email accounts.
• 2020-09-02 10:00PM: Contact Sprint after hours support via chat on website and am told that my account has been canceled and it is a system glitch. Support team will look into it and get my phone up and running within 24 hours.
• 2020-09-02 11:00PM: Initiate deleted email recovery from Yahoo Mail.
• 2020-09-02 11:00AM: Recover deleted Yahoo Mail emails and identify that password reset on Coinbase account has been performed by a person in the UK and that a $25,000 transfer and $65.00 transfer has been initiated. Note that I have a US based account and have not logged in in ages nor have I ever purchased anywhere near that amount of Bitcoin. This should set off alarm bells for Coinbase.
• 2020-09-02 11:00AM: Check chase account and ACH transfer does not appear in pending via online Chase portal. Assume Coinbase may have flagged this charge as fraudulent given prior activity and request for locking the account.
• 2020-09-02 11:28AM: Still no access to a cell phone. I placed call to chase fraud department from my work Skype account apprising them of the situation, performed a username reset, password reset and added a verbal password to my account. Fraud support fails to restrict my account despite me telling them that it was compromised via Coinbase and that an ACH transfer was going to be initiated from Coinbase for $25,000.
• 2020-09-02 11:49AM: Call Sprint and determine my phone number has been ported to John Anderson at T-Mobile. T-Mobile needs to investigate to give me my phone number back and estimates 24-48hours before they end their investigation.
• 2020-09-02 3:30PM: File an identity theft police report with Police.
• 2020-09-02 4:45PM: Regain access to my cell phone number and it is ported back to my name.
• 2020-09-02 5:00PM: Notice ACH transfers to Coinbase for $25,000 and $65 are pending in bank statement.
• 2020-09-02 5:05PM: Place call to Chase Fraud department. Tell them that they should cancel the ACH transfer marked as pending and that my account is compromised. I am transferred to Claims. I tell claims that my account is compromised and that they should cancel the transfer. Claims tells me that they will put some sort of hold on the transfer but that I may be liable for fees from Coinbase and that I will have to fill out a form.
• 2020-09-02 9:00PM: Initiate full scan across all my computers for viruses and worms with two different security suites. No viruses or worms detected.
• 2020-09-03 8:00AM: Identify that ACH transfer was processed despite my calls to the Chase Fraud department.
• 2020-09-03 9:00AM: Visit Chase Bank. Restriction is put on account. No one is able to explain why the ACH transfers were allowed to complete. Chase Bank requires I fill out a claims form before they can investigate my case which takes 24 hours to generate.
• 2020-09-03 2:00PM: File complaint with the FBI.
Updates because why not go live....
• 2020-09-03 4:30PM: Speak with a claims manager(?) at Chase bank. He informs me that if your account says pending the money is already out the door (fun fact). Still no one seems to be able to tell me why my account was not restricted prior to the transfer.
• 2020-09-03 7:45PM: File a complaint with the Department of Financial Institutions as it seems that Chase probably dropped the ball here.
• 2020-09-03 8:15PM: Email a couple lawyers to see what my options are. Not sure anything will come of this or whether it will be worthwhile but it probably makes sense to check tomorrow.
• 2020-09-03 8:45PM: I am still waiting on a response from Coinbase as to my case.
• 2020-09-03 10:00PM: Receive an automated email from Coinbase that they will hold the funds additional 7 business days before they can be withdrawn due to suspicious activity.
• 2020-09-04 3:00PM: Sign affidavit with Chase stating that I didn't initiate the ACH transfer with supporting timeline similar to this one but containing more details. Chase says they will credit my account with the $25,000. Not sure on the mechanics. I remain skeptical.
• 2020-09-05 10:00AM: Still no response from Coinbase beyond automated emails.
• 2020-09-06 10:05AM: A little positive progress here. It looks like I had ~$120 in BTC in my account that was transferred off. Not the end of the world as I forgot it was on there, but still no word on the ACH transfer which is my primary concern.
In the last 108 hours I am unable to get Coinbase on the phone or via email to tell me how their "investigation" is proceeding.
I'm sure I failed somewhere (many places) along the path here, but not being able to get in touch with anyone at Coinbase is disturbing. Maybe they'll read this and actually reply beyond asking for my support ticket number.
submitted by Quantifan 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]

To everyone rushing back into BTC from altcoins: What matters is that you learn why Bitcoin needs to be conservative in its development.

Over the past year, the prevailing thought among many in the cryptocurrency communities is that bitcoin is not keeping up with other coins. That somehow bitcoin was being intentionally crippled, or that the developers did not know what they were doing. As we are seeing with the bitcoin dominance going up, that prevailing thought was wrong. The coins who were supposedly going to kill bitcoin have been all but abandoned in many cases. Many others are in the process of dying a slow death (which may take years to fully play out).
To everyone who went heavy on these coins and sold all of their bitcoin, but are now coming back: Welcome back. We are glad to have you. But before you pretend like everything is great with bitcoin again, it's important to realize why you were wrong.
But first let's go back a few years. In 2015, I was a staunch big blocker. I want to share a post made during this time that I initially downvoted. (The reason I know this is because after a certain number of months/years, reddit does not let you change whether you upvoted/downvoted something). I downvoted it because it went against my biases which had already been built up around the scaling decision, and later I came back to this post after being referred to it again. The 2015 version of me had only been in Bitcoin for 2 years, and was disillusioned with what I thought bitcoin was. And not what it actually was, or what its limitations were. The 2018 me now realizes why I was wrong, but back then I spent far too much time thinking I had it all figured out. The post that I downvoted, is as relevant today as it ever was:
A trip to the moon requires a rocket with multiple stages or otherwise the rocket equation will eat your lunch... packing everyone in clown-car style into a trebuchet and hoping for success is right out.
A lot of people on Reddit think of Bitcoin primarily as a competitor to card payment networks. I think this is more than a little odd-- Bitcoin is a digital currency. Visa and the US dollar are not usually considered competitors, Mastercard and gold coins are not usually considered competitors. Bitcoin isn't a front end for something that provides credit, etc.
Never the less, some are mostly interested in Bitcoin for payments (not a new phenomenon)-- and are not so concerned about what are, in my view, Bitcoin's primary distinguishing values-- monetary sovereignty, censorship resistance, trust cost minimization, international accessibility/borderless operation, etc. (Or other areas we need to improve, like personal and commercial privacy) Instead some are very concerned about Bitcoin's competitive properties compared to legacy payment networks. ... And although consumer payments are only one small part of whole global space of money, ... money gains value from network effects, and so I would want all the "payments only" fans to love Bitcoin too, even if I didn't care about payments.
But what does it mean to be seriously competitive in that space? The existing payments solutions have huge deployed infrastructure and merchant adoption-- lets ignore that. What about capacity? Combined the major card networks are now doing something on the other of 5000 transactions per second on a year round average; and likely something on the order of 120,000 transactions per second on peak days.
The decentralized Bitcoin blockchain is globally shared broadcast medium-- probably the most insanely inefficient mode of communication ever devised by man. Yet, considering that, it has some impressive capacity. But relative to highly efficient non-decentralized networks, not so much. The issue is that in the basic Bitcoin system every node takes on the whole load of the system, that is how it achieves its monetary sovereignty, censorship resistance, trust cost minimization, etc. Adding nodes increases costs, but not capacity. Even the most reckless hopeful blocksize growth numbers don't come anywhere close to matching those TPS figures. And even if they did, card processing rates are rapidly increasing, especially as the developing world is brought into them-- a few more years of growth would have their traffic levels vastly beyond the Bitcoin figures again.
No amount of spin, inaccurately comparing a global broadcast consensus system to loading a webpage changes any of this.
So-- Does that mean that Bitcoin can't be a big winner as a payments technology? No. But to reach the kind of capacity required to serve the payments needs of the world we must work more intelligently.
From its very beginning Bitcoin was design to incorporate layers in secure ways through its smart contracting capability (What, do you think that was just put there so people could wax-philosophic about meaningless "DAOs"?). In effect we will use the Bitcoin system as a highly accessible and perfectly trustworthy robotic judge and conduct most of our business outside of the court room-- but transact in such a way that if something goes wrong we have all the evidence and established agreements so we can be confident that the robotic court will make it right. (Geek sidebar: If this seems impossible, go read this old post on transaction cut-through)
This is possible precisely because of the core properties of Bitcoin. A censorable or reversible base system is not very suitable to build powerful upper layer transaction processing on top of... and if the underlying asset isn't sound, there is little point in transacting with it at all.
The science around Bitcoin is new and we don't know exactly where the breaking points are-- I hope we never discover them for sure-- we do know that at the current load levels the decentralization of the system has not improved as the users base has grown (and appear to have reduced substantially: even businesses are largely relying on third party processing for all their transactions; something we didn't expect early on).
There are many ways of layering Bitcoin, with varying levels of security, ease of implementation, capacity, etc. Ranging from the strongest-- bidirectional payment channels (often discussed as the 'lightning' system), which provide nearly equal security and anti-censorship while also adding instantaneous payments and improved privacy-- to the simplest, using centralized payment processors, which I believe are (in spite of my reflexive distaste for all things centralized) a perfectly reasonable thing to do for low value transactions, and can be highly cost efficient. Many of these approaches are competing with each other, and from that we gain a vibrant ecosystem with the strongest features.
Growing by layers is the gold standard for technological innovation. It's how we build our understanding of mathematics and the physical sciences, it's how we build our communications protocols and networks... Not to mention payment networks. Thus far a multi-staged approach has been an integral part of the design of rockets which have, from time to time, brought mankind to the moon.
Bitcoin does many unprecedented things, but this doesn't release it from physical reality or from the existence of engineering trade-offs. It is not acceptable, in the mad dash to fulfill a particular application set, to turn our backs on the fundamentals that make the Bitcoin currency valuable to begin with-- especially not when established forms in engineering already tell us the path to have our cake and eat it too-- harmoniously satisfying all the demands.
Before and beyond the layers, there are other things being done to improve capacity-- e.g. Bitcoin Core's capacity plan from December (see also: the FAQ) proposes some new improvements and inventions to nearly double the system's capacity while offsetting many of the costs and risks, in a fully backwards compatible way. ... but, at least for those who are focused on payments, no amount of simple changes really makes a difference; not in the way layered engineering does.
by nullc (Mr. Gregory Maxwell) submitted to the bitcoin subreddit
If you're made it this far and want to read more, or perhaps from a different perspective, here is another article which influenced me more recently by Melik Manukyan
Lightning Network enables Unicast Transactions in Bitcoin. Lightning is Bitcoin’s TCP/IP stack.
It has recently come to my attention that there is a great deal of confusion revolving around the Lightning Network within the Bitcoin and Bitcoin Cash communities, and to an extent, the greater cryptocurrency ecosystem. I’d like to share with you my thoughts on Bitcoin, Blockchain, and Lightning from a strictly networking background.
To better understand how blockchain and the lightning network work, we should take a step back from the rage-infused battlegrounds of Twitter and Reddit (no good comes from this 😛) and review the very network protocols and systems that power our Internet. I believe that there is a great wealth of knowledge to be gained in understanding how computer networks and the Internet work that can be applied to Bitcoin’s own scaling constraints. The three protocols I will be primarily focusing on in this article are Ethernet, IP, and TCP. By understanding how these protocols work, I feel that we will all be better equipped to answer the great ‘scaling’ question for Bitcoin and all blockchains alike. With that said, let’s get started.
In computer networking, the two most common forms of data transmission today are broadcast and unicast. There are many other forms such as anycast and multicast, but we won’t touch up on them in this article. Let’s first start by defining and understanding these data transmission forms.
Broadcast — a data transmission type where information is sent from one point on a network to all other points; one-to-all.
Diagram: Broadcast Data Transmission https://cdn-images-1.medium.com/max/800/1*xbgXKepaeHZRqmHWsCb_qw.png
Unicast — a data transmission type where information is sent from one point on a network to another point; one-to-one.
Diagram: Unicast Data Transmission https://cdn-images-1.medium.com/max/800/1*i18TOm6hT_h7UQ8cnt8U_Q.png
Based on our understanding of these types of data transmission forms, we very quickly discover that blockchain transactions resemble Broadcast-like forms of communication. When a transaction is made on the Bitcoin network, the transaction is communicated or broadcasted to all connected nodes on the network. In other words, for a transaction to exist or happen in Bitcoin, all nodes must receive and record this transaction. Transactions on blockchains work very similarly to how legacy, ethernet hubs handled data transmissions.
A long time ago, we relied on ethernet hubs to transfer data between computers. Evidently, we discovered that they simply did not scale due to their limited nature. Old ethernet hubs strictly supported broadcast transmissions, data that would come in through one interface or port would need to be broadcasted and replicated out through all other interfaces or ports on the network. To help you visualize this, if you wanted to send me a 1MB image file over a network with 100 participants, that 1MB image file would, in turn, need to be replicated 99 times and broadcasted out to all other users on the network.
In Bitcoin, we see very similar behavior, data (a transaction or block) that comes from one node is broadcasted and replicated to all other nodes on the network. Blockchains similarly to old, legacy ethernet hubs are simply poor mediums to perform data transmission and communicate over. It is simply unrealistic to me as a network engineer to even consider scaling a global payment network such as Bitcoin via Broadcast-based on-chain transactions. Even to this very day, us network engineers take great care and caution in spanning our Ethernet and LAN networks, let alone on a global level.
To put it into perspective, if we were to redesign the Internet by strictly relying on broadcast data transmissions as exhibited in blockchains and ethernet hubs — we would have effectively put every single person, host, and device in the entire world on the same LAN segment or broadcast domain. The Internet would have been a giant, flat LAN network where all communication would need to be replicated and broadcasted to every single device. In you opening up to read this article, every other device on the Internet would have been forced to download this article. In other words, the internet would come to a screeching halt.
In computer networks, the most frequent form of communication relies on unicast data transmissions, or point-to-point. Most of the communication on the internet is routed from one computer to another, we no longer need to rely on blind broadcast transmissions of data with the hopes that our recipient will receive it or see it. We are able to accurately send, route and deliver our messages to our receiving party(ies). We learned that the transfer of a 1MB image file in a broadcast network would require the file to be replicated and broadcasted to every participant on that network. Instead, in a network that supports unicast data transmissions, we are able to appropriately route that image file from source to destination in a clearcut manner.
To me, the Lightning Network is the IP layer of Bitcoin. (I understand that these data transmission forms exist in both Ethernet and IP.) But, I do feel that these analogies help us to better understand these complex and largely abstract ideas: blockchain, lightning, channels, etc.
Let’s take a moment and ignore all explanations and overly simplistic definitions of Lightning that are perpetuated from both sides of the debate for a moment. Instead, lets objectively take a close look at Lightning and determine what we know. What do we know about lightning? It allows us to lock our Bitcoin and form channels with others. What else do we know? We can bidirectionally send and receive transactions between the two points that constitute the channel. What else do we know? We can further route transactions to their correct destination.
Based on these key understanding points, we are able to see that lightning enables unicast transactions in a system [Bitcoin] that previously only supported broadcast transactions. To me, Lightning nodes in Bitcoin are the equivalent of IP hosts — where we can finally conduct or route one-to-one or point-to-point transactions to their appropriate recipients. In traditional IP, we send and receive data packets; in Lightning, we send and receive Bitcoin. IP is what allowed us to scale our small and largely primitive networks of the past into the global giant that it is today, the Internet. In a similar manner, Lightning is what will allow us to scale our global Bitcoin network.
Where Lightning Nodes can be seen as IP hosts, I view Lightning Channels as established TCP connections. On the Internet today, when we try to connect to a website for example, we open a TCP connection to a web server through which we can then download the website’s HTML source code from. Alternatively, when we download a torrent file, we are opening TCP connections to other computers on the Internet which we then use to facilitate the transfer of the torrent data.
And in Lightning, we establish channels with our respective parties and are able to directly [point-to-point] send and receive data (transactions) similarly to TCP. Where Blockchain is similar to Ethernet, Lightning Nodes are our IPs and Lightning Channels our TCP connections.
To conclude, I see many similarities to our pre-existing network technologies and protocols that power our computer network(s) and I feel that we are redesigning the Internet. From a technical point of view, I don’t believe that scaling Bitcoin on-chain will ever work and fear broadcast storm-like events in the future. I welcome our new unicast transaction methods enabled by the Lightning Network. Even more so, I am excited for the ‘web’ moment in Bitcoin.
While everyone has their eyes fixed on blockchain technology, I look towards Lightning. Lightning is the TCP/IP stack of Bitcoin. Lightning is where we will transact on. Lightning is where everything will be built on. Lightning is what will power and enable our applications and additional protocols and layers. With this said, what is to become of the main Bitcoin blockchain? It will and should remain a decentralized, tamper-proof, immutable base or foundation layer which will provide us with cryptographic evidence of what is a Bitcoin.
Some individuals and groups within our communities and ranks spread fear and warn us of false narratives of “lightning hubs”, but fail to grasp that their scaling approach of on-chain transactions only pushes us in the direction of an actual (ethernet) hub design. If Bitcoin loses decentralization on its base layer, then we will lose Bitcoin. The past 9 years of work will have only resulted in a large, centralized broadcast hub with only a few remaining with the ability to operate such a monstrosity.
I wrote this article with hopes that it will help clear up the ongoing confusion about Bitcoin, Blockchain, and Lightning. It is designed to help better explain Blockchain and Lightning through analogies to concepts that we may be more familiar with. I also wrote this very quickly and it may contain typos. If you notice any typos, please bring it to my attention.
submitted by hybridsole to Bitcoin [link] [comments]

How to Unlock the Millions Stuck in Dead Coin Portfolios

How to Unlock the Millions Stuck in Dead Coin Portfolios

https://preview.redd.it/e18maexkmsh31.jpg?width=1920&format=pjpg&auto=webp&s=cc5ac6926b237018db5dd1e77a911b8079c6dfd5
There are over 2,000 cryptocurrencies in existence today, the majority of which do not present active value for their holders. These cryptos that present no value are responsible for a large amount of investment in the crypto market. In figuring out how to unlock the millions stuck in dead coin portfolios, one must revisit what happened around the 2017 ICO era.
How did Dead Coins come about?
Many of the investors whose funds are stuck in dead coin portfolios are those who rushed into the ICO market between 2016 and 2018. Others may have been involved before then. Unfortunately, while the 2017 ICO era brought a lot of awareness to the crypto industry, it was also a window for some negative developments. The aftermath is the millions stuck in dead coin portfolios.
Before this era, a number of projects had come into existence, even afterwards, more money has found its way into the crypto market. Placing this side-by-side with the number of dead coins being announced daily will give you an idea of the amount of wealth trapped in the crypto market.
The Impact of Dead Coins to the Crypto Market
The consequence of dead coins in the crypto market is enormous. It cuts across the investors themselves, and the market as a whole. These dead coins still have their data posted in the market and form part of the study tools for traders and investors. Therefore, beyond the risk borne by their direct investors, their influence on market analysis can be misleading.
Take for instance the popular coin listing platform, CoinmarketCap. It has over 2,400 coins listed on it at the time of writing. Majority of the altcoins listed there do not have sustainable network activity. Yet, because they are yet to overcome certain thresholds, they are still recognized as active cryptos. In reality, many of them are gone, and just this close to becoming officially declared as dead coins.
This development is why many people see cryptocurrency investments as a risky venture, especially with altcoins. Other factors include the lack of liquidity, dying communities and projects not finding necessary adoption. These factors leave investors stuck with tokens that they cannot get rid of.
How to Derive Value from Dead Coins
All that is about to become old news with the emergence of CoinJanitor’s rescue program. This is a program that is aimed at cleaning up the cryptocurrency market, and help to expose the true value of the market. For the crypto market to be sustained, there needs to be proper evaluation. This will be possible only when non-viable projects are removed from the ecosystem, thereby unlocking redundant assets.
Although this exercise is aimed at providing a lasting solution to the industry, it also serves as a restoration process for investors with locked funds. Investors that have put money into blockchain projects that have failed to deliver on promises. This group appears to be stuck with digital tokens that presently offer them no value whatsoever.
What CoinJanitor is doing is to help investors recover value by issuing them tokens from an active blockchain project. Tokens that have both immediate and sustainable value. The platform’s JAN tokens will be issued to victims of dead coins in exchange for the dead coins. This will enable CoinJanitor to burn the dead coins and clean up the crypto currency market.
While this happens, the investor can either trade their newly issued JAN tokens for Bitcoin, Ethereum or any other major cryptocurrency. They can also keep the JAN tokens and enjoy its own value. What is more important is that the ultimate goals are achieved, which involves cleaning up the industry and restoring value for investors.
This is how to unlock the millions stuck in dead coin portfolios!
https://coins.newbium.com/post/27804-how-to-unlock-the-millions-stuck-in-dead-coin-port
submitted by OliAustin101 to CryptoCurrency [link] [comments]

Run a 0.14 Full-Node on RaspberryPi3 Pruned(less than 16GB SD needed)

Hi!
Happy if this guide helps you.
Tip if you want: 19656Uwdwko5RjtnuwQENpjBwE3ChzD59v
UPDATE 04/06/17
Add 'uacomment=UASF-SegWit-BIP148' into your bitcoin.conf if you want to signal UASF.
UPDATE 03/13/17
ADDED a tl;dr; Version at the end of this Post.
UPDATE 03/12/17:
Just to test it - I reinstalled all on 8GB SD and it works as well. But maybe you should use at least 16GB for the beginning.
Using a 128GB card for the first version was a little bit stupid - so I reinstalled everything on a 8GB SD card. Including Linux and a pruned blockchain - and it works.
I used prune=550 and Jessie Lite (headless / command line) - without wallet and gui.
The SD is almost full, but it works so far
I also updated the whole manual a bit to make things more clear. Thank you for all your feedback!
Just started my Bitcoin Node today and wanted to share the way I did it with people who are interested in running their own full node. It took some time to write everything down - hopefully correct so far.
I am sure, many people around bitcoin are way more informed and educated as I am - I am the noob. So I wrote this manual to help users like me - noobs, to get started with a cheap, simple bitcoin node on raspberry pi.
Have fun!
I wanted to get my Raspberry Pi 3 working as a node to support the network. Actually the process of installing and running the node was more or less easy - but for Noobs (like I am) it might be a bit tricky to start the whole thing, because there are different ways.
Did you - like me - think you would need +120GB on the raspi, external USB HDD to be a full node? You won't!
If you have a Raspberry and you know what Bitcoin is, I guess, you are a little bit aware of linux, networks and of course bitcoin - so I won't go into detail too much.
This guide is just a little helper to get a full node running on your raspberry pi. Thanks to the help of the nice people in this sub and of course the documentation by the developers, I got it working - and of course also special thanks to raspnode.com - as I followed their tutorial to start - I went some other ways here and there - so please read carefully.
For the Part 2 I would suggest to have http://raspnode.com/diyBitcoin.html open and read through my manual.
I split the tutorial in 2 Parts - PART ONE is about installing the client on your PC and downloading the Blockchain.
PART TWO is about the setup of the raspberryPi and transferring the pruned blockchain to the pi and run it as a full node!
The first thing to be aware of is: You actually need to download the whole blockchain to get this working - if you already have your bitcoin client synced on the PC / MAC great you can reuse it!
Now you might think "but you said less than 16GB in the title!"
Yes, but the good thing is you won't need to download it on your Raspberry, neither you need to sync it completely on your raspberry which took ages (weeks!) before. When you finished this Guide, you will just have a max. 4GB Blockchain on your Raspberry Pi - but it still is a full node! The magic word is Pruning.
Maybe even a 8GB SD Card works just fine including Linux (jessie lite)!
So, if you already have a full node on your PC - Great you can almost skip PART ONE - BUT have at how to Prune in PART ONE if you don't know about it.
For PART TWO you'll need a Raspberry Pi 2 or 3 (I used 3) min. 8GB (works also) or better 16GB SD Card. (I used a 128GB for the first version of this manual - which is way too big)

PART ONE

This is the manual how to get started on you PC / MAC / Linux (I did it on Win7)
Go to: https://bitcoin.org/en/download and download the core Client for your Machine (I used win64).
Install it and configure it to save the Blockchaindata to the directory of your choice - so instead getting 120GB on your C drive, I would suggest to download it to another place like a USB drive.
You can set this up during the install. Standard folder for the blockchain folder is "%APPDATA%\Bitcoin" on Windows.
or you can do it after the install by creating a bitcoin.conf file inside your installation folder / or %APPDATA%\Bitcoin and add
datadir=l:\yourfolder
to the file. Line by line.
By the way here you could also just add dbcache - to use more memory to speed up the process a bit:
dbcache=4096
if you don't want to use the settings inside the program. (you can also set this inside the program under settings! If you have this inside the bitcoin.conf you will see the amount you set there from inside the program - it overrides the values)
You can check inside the windows client under settings, if you can see a manual dbcache is set by having a look at the left footer area. When your dbcache value shows up, everything is fine.
So the Blockchain download process will take time - maybe a few days! Depending on your machine, internet connection and HDD.
The Blockchain is huge as it contains every single transaction of the past until today. You won't need to keep your PC running all the time, you can turn it off and on and it will resync automatically when you start bitcoin-qt.exe!
Make sure to close the client always via "quit" - ctrl+q.
After you have your bitcoin core installed, the blockchain downloaded and synced - you are ready to PRUNE!
First - close the Client and let it close smoothly. After it is really closed you can follow these steps:
By pruning, your blockchain will dramatically shrink. From 120GB to just a few GB.
Be aware, that you will lose your Downloaded Blockchain as pruning will erase a big chunk of it! If you have enough space, you could of course keep the full blockchain saved somewhere on another HDD.
You can prune by editing your bitcoin.conf file by adding:
prune=550
I used prune=1024 - not sure where the differences are right now (min. prune=550). (for my 8GB version I used 550! I suggest to use this.)
Save the bitcoind.conf file and restart your windows client.
It will now clean up the Blockchain. So just the latest blocks are saved. The client should start without any problems. Maybe it takes some time to prune the blockchain data.
Check if everything works normally (the client opens as usual, you can see an empty wallet) than close the client.
Inside the Bitcoin Folder, you'll find two folders called:
blocks chainstate
those are the interesting folders containing the important data (now pruned) - and we will transfer those two to the raspberry later!
Now you are good to start the raspi transfer explained in the next part.

PART 2

Here is what I did:
1) I installed Raspian Pixel (https://www.raspberrypi.org/downloads/raspbian/) using a 128 GB SD - which is not needed because of "Pruning" - I think a 16GB card might work, too! (You can also install Raspian Jessie Lite - which saves you even more space, as it runs headless - only command line) (Updated: It is better to use Jessie Lite to save a lot of space - when you are fine with only command line)
2) I followed partly this tutorial to get everything running and setup:
http://raspnode.com/diyBitcoin.html
Please have a look at it - I have copied the Headlines in capitals to let you know what I did, and what I skipped.
On Tutorial Page: Start with RASPBIAN (OPTIONAL) CONFIG OPTIONS.
Set You RasPi up including "EDITING FILES" to save your Layout at the tutorial page and come back here.
I skipped the CONFIGURE USB AND SET AUTOMOUNT process, as we are going to use PRUNING to reduce the 120GB to a tiny filesize - so USB Devices are not needed here!
It was necessary to ENLARGE SWAP FILE to install bitcoin core - otherwise it didn't went through which ended in a frozen raspi.
So have a close look by following the raspnode tutorial at: ENLARGE SWAP FILE.
I have my raspi running via cable to router - but you can also WiFi setup everything described under NETWORKING ON THE RASPBERRY PI.
Now comes the interesting part: Follow the steps at DOWNLOADING BITCOIN CORE DEPENDENCIES - they work fine for 0.14.0 too. Git should be on Board already when you installed Pixel - otherwise you would need to install it.
sudo apt-get install git -y (only jessy lite)
I skipped the next command lines - as I don't use bitcoin-qt wallet. If you want to use it as wallet - do the step.
mkdir ~/bin cd ~bin
Now you are in the folder you want your bitcoin core data be downloaded to via git. I didn't Downloaded the Berkeley Database source code - so I also skipped the whole next command lines
[email protected]~/bin$ wget http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz [email protected]~/bin$ tar -xzvf db-4.8.30.NC.tar.gz [email protected]~/bin$ cd db-4.8.30.NC/build_unix/ [email protected]~/bin/db-4.8.30.NC/build_unix$ ../dist/configure --enable-cxx [email protected]~/bin/db-4.8.30.NC/build_unix$ make -j4
and went on with "INSTALLING BITCOIN"!
I followed the first part but instead downloading 0.13 I took of course the latest version:0.14
git clone -b 0.14 https://github.com/bitcoin/bitcoin.git cd bitcoin ./autogen.sh
this might take some time to start.
If you have trouble with hanging RESOLVING DELTAS - just restart the Raspberry Pi and remove the bitcoin folder inside /~bin using
rm -rf bitcoin
this command will delete the folder and you can reuse
git clone -b 0.14 https://github.com/bitcoin/bitcoin.git

For some reason RESOLVING DELTAS is a common problem with different downloads - so just retry it and at least after 3 times it should work!

as I didn't use the GUI/ Wallet, I ran
./configure --enable-upnp-default --disable-wallet
as I don't need the wallet functionality.
I didn't need to use "MAKE" which saves you maybe up to 2.5 hours.
instead you can just go ahead with:
sudo make install
(If I am wrong in doing so - please let me know)
The install takes some time - and just a heads up: when it gets stuck somewhere - just redo the installation process - it took three times to went through - stuck at some processing.
After the installation took place you can finally get your Raspberry Pi Node running in no time!
To test if the the installation went through - you can just start bitcoind using:
bitcoind &
than check if everything is working so far:
bitcoin-cli getinfo
after a few seconds you should see version: etc...
if not, something went wrong. Try to redo the steps in the raspnode tutorial.
(don't give up if it failed - retry! Ask your questions here)
IMPORTANT: you need to stop bitcoin on your raspberry now!
bitcoin-cli stop
If you don't need an external USB Drive - what I hope - as we are going to use pruning just go ahead and skip the USB part and create a file inside (or follow the raspnode tutorial on how to setup the USB drive):
cd .bitcoin
sudo nano bitcoin.conf
and enter the exact same pruning size you have used on your Desktop Machine to prune. I used 1024 but the minimum is 550. (used 550 for the 8GB SD card on PC and Raspberry)
prune=550
That's it for the raspi.
update: To signal UASF enter in a new line:
uacomment=UASF-SegWit-BIP148

TRANSFER

Now you have to transfer the two folders CHAINSTATE and BLOCKS from your PC bitcoind directory to your raspberry.
I am using a program called "WINSCP" - it is free and easy to use: https://winscp.net/eng/download.php
We need this to transfer the files to the Raspberry pi. Pretty sure you can also do it via SSH - but I am the noob. So let's keep it simple.
Open Winscp and put in the IP Address of your Raspberry Pi, User and Password (same as in SSH)
You should now see the directories on your Raspberry Pi. There is a folder called
.bitcoin
enter it and you will see the two folders
blocks & chainstate
you can delete them on the raspberry as they have some data from your previous test inside.
Make sure you can also see the bitcoin.conf file in that directory, which needs to contain the exact same prune line, like the one on your desktop machine. If not, make sure to edit it via SSH. The line "datadir=l:\yourfolder" is obviously not needed in the Raspberry bitcoin.conf file.
Now grab the two folders CHAINSTATE and BLOCKS from your PC and copy them to your .bitcoind folder.
I also copied banlist.dat, fee_estimation.dat, mempool.dat and peers.dat to the folder - not really knowing if needed! Not needed.
The whole copy process might take some minutes (against some weeks in the old way).
After copying is finished, you can now start bitcoind on the Raspberry.
bitcoind &
the & symbol let you still use the command line while the process is running btw.
The process - if succesfull - will take some time to finish.
bitcoin-cli getinfo
Will give you some informations what is going on right now. When you can see, that it is checking the blocks, this is good!
If you get an error - double check - if you have the correct prune size (same as on desktop machine) - in bitcoin.conf and that this file is inside .bitcoin on RaspberryPi. It took me some time, to find my mistakes.
Congrats! You are almost a part of the network!
To make your node now a fullnode, you will need to go to your router (often 192.168.1.1) and enable portforwarding for your raspberry pi - and open ports 8333 - that's it!
You can now go to: https://bitnodes.21.co/nodes/
scroll down to "JOIN THE NETWORK" and check check if your node IP is connected!
It will show up as soon as the blocks are checked and the raspi is running.
Well done!
Now you are running a full node, with a small Blockchain and got it working in Minutes, not weeks!
I really hope, my little tutorial worked for you and your are part of the Node network now.
If you have problems or I made a mistake in this helper tut, just let me know and I will try to make it better.
Have fun and NODL!
the noob
tl;dr; (if you are a real noob start with the non-tl;dr version!)
tl;dr; PART ONE
1) Download & install / setup bitcoincore @ https://bitcoin.org/de/download
2) change dbcache to something smaller than your memory and download the whole Blockchain (120GB).
3) create a file called bitcoin.conf put the line prune=550 (or higher) in to activate pruning on win inside %appData%/bitcoin
4) Open ports 8333 on your Router to make this a full node with a smaller Blockchain.
You are running a full node on your PC.
tl;dr; PART TWO
1) Install jessie lite and the needed dependencies on your SDCard - Raspberry
( >git clone -b 0.14 https://github.com/bitcoin/bitcoin.git )
  • see tutorial for more info.
2) create a file called bitcoin.conf inside .bitcoin and add the same prune=Number you had on your PC.
3) transfer the pruned folders BLOCKS and CHAINSTATE to the Raspberry Folder .bitcoin
4)Start "bitcoind &"
5) let everything sync
6) Make sure you have port 8333 opened on your router.
You are running a full node on your Raspberry with a super small Blockchain (I put all on a 8GB SDcard)
Tip if you want : 19656Uwdwko5RjtnuwQENpjBwE3ChzD59v
updated 03/12 - will update more, soon.
updated 03/12.2 - I updated the whole process a bit and also added some improvements.
updated 03/14/ Added a tl;dr version at the end.
submitted by I-am-the-noob to Bitcoin [link] [comments]

Mycelium announces Entropy project on Indiegogo

Today, Mycelium has announced the launch of an Indiegogo project for its Mycelium Entropy device. Mycelium Entropy is the newest addition to the Mycelium Bitcoin Wallet ecosystem, first announced at the Bitcoin2014 Conference in Amsterdam, and demonstrated at the Central Europe Bitcoin Expo in Vienna, as well as the recent Bitcoin in the Beltway conference in Washington DC. The project fundraiser was initially delayed when Kickstarter decided to deny it on the grounds that "Kickstarter's guidelines do not allow for offering money processing services." Attempts to explain that a hardware random number generator is not in any way a "money processing service" has failed, but the Mycelium team was not deterred, and we found a new place to host the fundraiser.
Mycelium Entropy is a small, simple USB device that is designed specifically to generate paper wallets. All you do is plug it into a printer's USB port, and the device uses specialized hardware to create a random number with 256-bits of entropy. It then uses that number to generate a paper wallet with public and private keys, which your printer sees as a JPG photo that it can print directly from the device. This is currently the most secure way to create paper wallets, since the keys are never exposed to the web, use true high level entropy, and only exist on paper. For extra security, Mycelium Entropy can also create M-of-N split keys, where the private key is split up in such a way that you need two out of three parts to spend from an address. In this way, if one of your paper backups is lost or stolen, the thief still can't steal your coins, and you can still access them using the remaining 2 paper backups. Since the Mycelium Bitcoin Wallet has full support for spending from paper wallets, using Mycelium Entropy in combination with the Mycelium Bitcoin Wallet can be a very safe and easy way to store and protect your savings. Think of it as being able to create your own bank deposit certificates that you can keep in a safe, while keeping only a bit of spending cash on your Android wallet. With this combination, the idea of "Be Your Own Bank" comes much closer to reality, and becomes much easier as well.
At this stage, the devices are fully functional, and need just a few minor software tweaks, such as fixing issues of incompatibility between US and European sized paper standards causing the headings on the paper wallet image to be cut off. Mostly minor things that will be resolved by the time we are ready to launch. Although the device hardware is open source, we need to raise money to be able to order them in sufficient enough quantities to make them cheaper for everyone, since mass production is much cheaper than ordering them one at a time. Also, about $1,500 of the money raised will go towards testing and compliance for these types of devices, like CE marks, FCC part 15 approvals, etc. While the devices are being developed, we will spend time testing printers and putting together a list of recommended printers to use with these, just to make sure that yours can handle this, or if it can't, to help you find the cheapest (and most secure) option you can get.
You can read many more details, and see examples, on our Indiegogo page.
submitted by Rassah to Bitcoin [link] [comments]

NYC Meetup - Full Summary!

Following up on my other post which shared only a few high level points I thought people would be interested in, here's a more in-depth summary of the meetup. THIS IS VERY LONG! I don't really have a TL;DR beyond my other short highlight thread, but I think there are some other high level summaries. This is for those who want a very thorough recap of what was discussed. I'm happy to update this with anything shared in the comments which I remember and think is additive to the summary, definitely didn't catch every single thing.
I'm leaving out a few talking points/questions that either 1) I didn't totally catch, 2) provided no incremental information or 3) were just bad questions (there were some).
Sunny's Speech
Sunny began with a history of blockchain, from the bitcoin whitepaper to the first few alt coins to the advent of Ethereum. He then went on to discuss the extent to which these various stages involved meaningful/useful innovation: original alt coins did not, ethereum of course did, but is heavily flawed for enterprise use. He then went on to discuss what those primary flaws are and how VeChain is trying to solve them (scalability, governance, cost, etc.) He noted that technology is not blockchain's biggest obstacle, it's adoption. He talked about how, although some people will tell him to "get lost or something" he doesn't really believe in full decentralization. I think his point was that although it's nice in theory, it just isn't really practical, and it's a bad approach in particular for trying to get this new blockchain technology adopted in the mainstream. This goes back to something he said in another interview at some point - you can't just come in with totally new, radical technology outside the existing framework and replace everything that exists from the outside. You have to start within the existing framework, show people what's possible, and then change the system from the inside out.
He went on to discuss what he sees as problems with some of the existing projects. Talked about how projects in the top 20 have ecosystems worth 2 billion dollars, hold hundreds of millions of dollars worth of their own tokens to be used for the project's development etc., but they don't have a CFO. He thinks that should concern people.
I don't remember exactly where it fit in the narrative, but he discussed valuation/speculation. He pointed out that they have a number of their university research partners trying to work out token valuation models. He made a general point that more utility should equal more value, the implication being VeChain will have more real utility (and should therefore have more value) than any other blockchain. They had a slide showing some calculations and pointed out that if you look at the known metrics, the dividends, etc., the price of Google's stock is 85.7% speculation. Only $161 of it's $1,128 value (at the time they ran these numbers) can be tied to the current value. For Tencent, it's 93.5% speculation. He jokingly pointed out that in crypto it's about 99.99%, but I think one of the unspoken points here is that it's silly to think that on mainnet launch speculation about the future value is going to go away and you'll just have token value based on current Thor production. That isn't how markets or valuation work.
He then basically mocked people complaining about the code not yet being open source, and there being no whitepaper - the people who think these are red flags and that the project might be a 'scam'. As if PwC and DNV GL didn't do extensive diligence.
On this point, I'll quote GarzyWarzy from another thread:
"Sunny mentioned that the crypto community as a whole doesn’t seem to appreciate the level of reputational risk that these multi billion dollar enterprise partners take by publicly backing a blockchain startup (“what do people think would happen if PwC backed us and we failed in 6 months?”). As an investment banker who deals extensively with corporate governance issues and every type of business risk imaginable, I will add my two cents that this risk is massive and that is it a clear sign of extensive diligence and extreme trust in the VeChain team to execute their business plan for developing their ecosystem. Always remember, “it takes many years to build a reputation, and seconds to ruin it”."
I'm a corporate lawyer and couldn't agree with this more. The people who think a whitepaper (which they likely wouldn't even understand) is more reassuring than the endorsement by DNV GL, PwC, Draper and Breyer (who would never, ever make such an investment without extensive due diligence) have no idea how things work in the corporate world. DNV GL and PwC are recommending VeChain to clients, and Draper and Breyer have made investments through their funds, where they have a fiduciary duty to the investors in those funds. The amount of diligence that occurs before taking those reputational and legal (negligence, breach of fiduciary duty, etc.) risks is truly exhaustive.
Back to adoption, Sunny went on to compare blockchain to TCP/IP, as he's done in the past. Most people use email every day, but do they care about TCP/IP? Of course not. Blockchain will be the protocol infrastructure for things people use every day, whether they know it or not.
At this point, continuing to talk about adoption and use cases, he mentioned that they signed a top 3 insurance company in China as a client, and he also mentioned a CRM use case that's in the works.
He said the whitepaper will be out in a few days, and will explain a lot of what they're doing/what they're trying to do, and what some of the use cases are. They are focused on developing as many practical use cases as possible - this is how you get adoption. Once the use cases are defined, you can start "developing killer dApps" in relation to them. I think this is, to some degree, a subtle shot at Ethereum - his point here being that developing lots of dApps on a platform doesn't really mean much unless those dApps actually relate to a practical, defined real world use cases which ensures they will be used and adopted.
The whitepaper took so long because, in Sunny's words, his "english sucks" and after he wrote it, his teams needed to double, triple, and quadruple review/edit/refine what he wrote so that it is in professional english.
Back to adoption, he stated there are around 13/14 crypto projects they are working with who intend to use VeChain (either porting over from Ethereum or launching an ICO on the platform. More on this in the Q&A section). One of them is a company that already generates $50 million/month in revenue and want to 'blockchain-ize' their business. He pointed out here this is a company that isn't just interested in padding their coffers - they have money, that isn't an issue. These are the types of projects they like to work with. They aren't interested in being a 'shitcoin generator' (this was said by Sunny in the Q&A and got a laugh and round of applause). Last point on this, he noted that BitOcean is taking so long because the "Japanese government are being assholes". That's a direct quote. Sunny is hilarious. I can't overstate how likable he is - he comes off as a down to earth, cool, funny and easy going guy.
Kevin's Speech
Next, Kevin spoke. This was a short update on authority nodes and the mainnet. He mentioned that most projects have masternodes as basically a marketing tool, they aren't that meaningful or necessary. VeChain's authority masternodes are essential to the ecosystem. You can not become an authority node if you can not meaningfully contribute to growing the ecosystem. There is no room for negotiation on this. They aren't interested in having random people running validating authority nodes for profit and nothing else. As far as the application process, they received over 100 applications and are expecting more (authority node application and monitoring process will be ongoing to make sure VeChain has the best authority nodes possible and that each node is continuing to fulfill all of its obligations). As far as the applicant pool, they were about 71% enterprise, 29% individual. About 52% China, 23% America, then a mix of HK, Singapore, Japan, and others.
He then addressed the mainnet. Internal testing is done, they are now moving on to the public alpha testing, which is by invite only and is not the open source phase. This phase starts today and includes a number of professional firms auditing the code: PwC's cybersecurity team, secureware.io, Slow Mist, and Hosho. They will also be putting a bug bounty on Hacken eventually, finding a critical vulnerability could get you up to 2000 VEN tokens. This private testing will go on for a few weeks, before the public testing begins in early June which involves the code becoming open source - as of now, they expect it to start in the first week or two of June.
Then, he announced the 1 VEN to 100 VET token split. The example he gave was talking to friends about buying Bitcoin - some responded "it's already $8000, I can't buy a bitcoin I can't afford it". Kevin would respond, well actually you can buy .001 bitcoin if you want... and then they'd lose interest. I think what he's getting at is they want to be prepared for years down the road when demand is enormous - they don't want people dealing in fractions. Yes, I'm also sure they are aware of the implications for this in terms of price and the attractiveness of a 5 cent token verses a 5 dollar token. I don't deny that. Look at fucking Tron.
The Q&A Session
Someone asked about how the authority nodes will be monitored. Kevin explained there will be a dedicated team for this. They are serious about having the highest quality authority nodes and holding them to the standards they expect. There will be a quarterly review process, and any issues will be brought to the Steering Committee, which may decide to remove/replace an authority nodeholder if they aren't contributing and fulfilling their obligations. He noted that the whitepaper will include a thorough section on their governance model.
Question about it being difficult, currently, for companies (especially in the west) to find out how to contact them and work with them. What are VeChain's plans in terms of a business development team, marketing, etc. Sunny explained that while obviously they'll have an internal BD team, and this is being built out, they also want to heavily leverage the resources of the community. In a way, the community will be a giant business development team, and they will create standard toolkits for the community to use to market/introduce VeChain to people in the first instance. The guy then asked what if I got you Pfizer - that's enormous, what's my incentive? Sunny responded there will be rewards in VET tokens for bringing them clients.
I don't remember what the exact question was, but it was noted at this point that although the private, consortium chain is an Ethereum fork, the mainnet was built from scratch and is not an Ethereum fork. They did intentionally use the Ethereum Virtual Machine, though, so that Ethereum dApps can be easily ported over to VeChain. It sounds like they expect this to happen quite a bit. They also talked about how they went through the web3 libraries and 80% will be able to work directly with VeChain. They want interoperability, compatibility, and ultimately, an easy transition for Ethereum developers and dApps.
Someone asked about them building out their own IoT business or letting others do the IoT work. Sunny talked about how he believes IoT is the way to connect blockchain to the physical world. There was a story not worth sharing about why they initially acquired an IoT team, but he gave this example: when Apple first released the app store and the ability to develop, nobody knew how or used it. So, Apple built the apps themselves and basically showed everybody what was possible and how to do it by example. So too will VeChain take this approach. They are partnering with IoT manufacturers and developing some of their own IoT solutions, and they'll continue to do this, but the point isn't to dominate IoT. They are showing the world by example what can be done in terms of IoT on the VeChain platform, and they ultimately want people/enterprises to be able to create their own value and their own IoT solutions on the VeChain blockchain. Anyone who wants to do so will be able to.
Question about enterprises buying once the enterprise pool runs out - what happens if enterprises aren't comfortable doing what all of us have done (wiring money to a fiat gateway exchange, buying bitcoin/ethereum, moving it to binance, buying in the market, transferring out of binance, etc.). Kevin isn't really worried about this. They are talking to exchanges and service providers about it, they're talking to Circle about fiat pairing, etc., but realistically Kevin can see that exchanges are becoming more advanced and that ultimately they will be institutionalized in a way that basically just mitigates this concern.
Question about storage of VET tokens after mainnet. There will be a mobile wallet launch at the exact same time. This mobile wallet will 1) facilitate the token swap from VEN to VET (most people will probably do this on exchanges, but eventually you'll be able to do it in the mobile wallet if you missed doing it on an exchange), 2) have a module that shows you what kind of node you are, 3) automatically receive your generated Thor, and 4) eventually allow you to hold other ERC-20 tokens. They also mentioned that although they're talking to ledger, etc. they are developing their own hardware wallet. Kevin explained this is essential for enterprises serving as authority nodes or holding large amounts of VET. They aren't going online and ordering a ledger and setting it up. VeChain needs to be able to provide this service and assurance for them, and they will. This is why these guys are lightyears ahead in terms of enterprise adoption. They've thought about these things.
Question about 'competitors' like Waltonchain. First, Sunny goes "who?" and Kevin goes "what's Waltonchain?" But then Sunny went on by saying the "right" thing - there are no competitors in such a fledgling industry. He would love to hold hands with the other blockchain projects trying to do good things, and walk into the future together. He thinks projects can learn from each other and help each other. They aren't trying to crush competitors or beat anyone or anything like that. However, Sunny also jokingly asked "Seriously, why do people think Waltonchain is our competitor? We are what, 15th biggest project, and they are...?" He also went on to say that he is judging some competition or tech demo later this month on the 26th-28th, and that Waltonchain is the demo product. He thinks this is sort of funny, but also said if their product is great and the demo is good, there is no reason he wouldn't support them, vote for them, etc.
Question about Breyer and Draper relationships. Draper is invested in many cryptocurrency projects and many companies, has tons of connections, and he gives VeChain a way of talking to all of those projects/companies. Breyer was the one who set them up with the research team at a Chinese university, he was the link to Circle to discuss fiat onramps, etc. The connections these guys bring are tremendous. I should note here that in a small group conversation with Kevin during the networking portion after the speeches, which was initiated by GarzyWarzy (perhaps he can elaborate further), he confirmed that Breyer and Draper are both meaningfully invested in tokens, not just equity of the technology portion of the company.
Some clown actually used up time to ask "is CCK here?" Sunny said someone asked him this at Harvard also, and he was absolutely adamant that he doesn't know who this person is or how they are getting the information they have. He did not comment on it beyond that. He clearly thought it was a dumb question and said seriously that once and for all, he really doesn't know who it is.
Question about how many projects will be running on the mainnet day 1. Sunny said it's hard to say for sure, but that there are currently between 20 and 25 use cases deployed on the consortium chain, all of which will be moved over in the first few months. He also mentioned the 15ish crypto projects that will be moving over to or launching on the platform, and the fact that their client pipeline is now over 250. He transitioned a bit from this point to discuss how they "don't want to be a shitcoin generator". If you come to them with a project that is just an ICO with a whitepaper and no product, no proof of concept, etc., they're not going to want you to launch that. They would rather invest in you if they think you're a good project, help you develop those things, prove out what you're trying to do, then help you launch a serious ICO or dApp with a real use case. Again, they are all about practical use cases, this is the path to adoption. That said, the project will be open source ("you guys asked for open source, so") there will be some shitcoins, it's unavoidable.
I think that covers most of what I remember. Hope you all enjoy!
submitted by CryptopherWalken to Vechain [link] [comments]

USB Bitcoin Miner - The Power of 1000's Computers - YouTube Minecraft: How-To fix Failed to Bind to Port Error - YouTube CNBC - YouTube emsigner error in gst portal - Step by step solution process Noob's Guide To Bitcoin Mining - Super Easy & Simple - YouTube

The world’s first cryptocurrency was the Bitcoin. When it was first created in 2008 (by an unknown person or group), it looked as if it might be a world-changing invention. Cryptocurrencies are forms of digital currency that exist without a central bank or administrator. They are relatively complex, and they can be “mined” using sophisticated graphics chips that use their processing ... Bitcoin Savings and Trust . Following the collapse of the first bitcoin bubble, hacking activity died down for a bit. With bitcoins worth single-digit dollars, there was less motivation to steal ... OSX 10.8 fails to build bitcoin → bitcoin: error: explicit instantiation of ... but no definition available Probably an incompatibility with the latest boost, like we've seen in lots of other ports. Moreover, it seems that this works for a simple netcat listener. If I start a container and open a port using netcat: λ docker run -it -p "12345" alpine /bin/sh / # nc -vvvv -l -p 12345 0.0.0.0 listening on 0.0.0.0:12345 ... I can show the open port on the WSL2 host: Craig Wright, the Australian entrepreneur who has claimed to be the inventor of Bitcoin, reneges on a promise to provide "extraordinary proof".

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USB Bitcoin Miner - The Power of 1000's Computers - YouTube

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