How long should synchronizing your wallet for the first ...

I paid for a torrented movie, because it was easy: The Rise and Rise of Bitcoin. I was startled by the website updating in real-time and in synchronisation with my wallet. The utility and unprecedented freedom of Blockchain techs continue to impress me.

submitted by slackermanz to Bitcoin [link] [comments]

Synchronising your bitcoin wallet

Synchronising your bitcoin wallet submitted by BitclubAustralia to u/BitclubAustralia [link] [comments]

The latest version of the 64-Bit Armory Bitcoin Wallet (on Ubuntu) crashes after it finishes synchronisation, but before it does the scan. Any ideas?

It will reach the end of the sync, and then just exit/crash out, leaving bitcoin-qt running in the background.
I am running Armory off a small SSD & and bitcoin-qt off my main storage HDD. Could it be failing to allocate space to build the databases? with the terminal command:
armory --datadir="/media/username/HDD_name/FolderName/.armory/" 
submitted by slackermanz to Bitcoin [link] [comments]

I found a Bitcoin on a wallet on an old laptop I was going to throw out. I'ts taking forever to synchronise as it was last used about 2 years ago and it keeps overheating and switching itself off. Is there a way of speeding up the synch?

submitted by SnozzlesDurante to Bitcoin [link] [comments]

I was using Jaxx wallet and then I changed to Jaxx Liberty (I synchronised them), and I think I have AN ISSUE: on both wallets I have 0.001248 BTC but the fiat currency is different on these two. I have 6.20 EUR on Jaxx but ONLY 5.92 EUR on Jaxx Liberty. Does anyone know what is the probl /r/Bitcoin

I was using Jaxx wallet and then I changed to Jaxx Liberty (I synchronised them), and I think I have AN ISSUE: on both wallets I have 0.001248 BTC but the fiat currency is different on these two. I have 6.20 EUR on Jaxx but ONLY 5.92 EUR on Jaxx Liberty. Does anyone know what is the probl /Bitcoin submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

so i need help to know how to take my money from my wallet "bitcoin core" to put it in a way easier wallet " im a noob" because that god damn wallet is done synchronising in 5 years or whatever and i cant see my money until that , so i would just like to know how to achieve it , /r/Bitcoin

so i need help to know how to take my money from my wallet submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Bitcoins gone from wallet while synchronising.

Hi! I wanted to try out bitcoins so i bought some and imported them to my bitcoin-qt wallet. I still could not see the money in the wallet and realized I had to wait for it to synchronise. During the synchronisation my hard drive crashed... I managed to save some of my hard drive, including the bitcoin wallet. When I opened the wallet though it contained a new address and not the one with my BTC. I then tried importing the wallet to but there is still no BTC in any of the wallets. I have the address that the BTC is on and confirmed on blockchain that there still is BTC on it.
So is there any way for me to get my bitcoins back, since I still have the address where the money is on?
submitted by aikanden to Bitcoin [link] [comments]

Can you backup a wallet if it is not fully synchronised with the network? /r/Bitcoin

Can you backup a wallet if it is not fully synchronised with the network? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Monero GUI stuck in sync loop

Hi everyone,
I have been using Monero GUI with no hassle until today I converted some bitcoins to XMR via Changelly and noticed my funds did not update despite recieving confirmation that the transaction has been made.
I quit out of it and reopened and now Monero GUI is stuck in a loop where Daemon is synchronised and the wallet blocks will then sync until the blocks count down to zero and then demon will sync again and the process has been repeating for a couple of hours.
It wouldn't sync initially it would get stuck so I rebooted then disabled windows defender then I ran into this new looping problem
I'm using: Windows 10 V0.16.0.3
Any help would be much appreciated thanks
submitted by LemonScaping to monerosupport [link] [comments]

Can't Get Coin from Electrum Wallet due to High Number of txts

I have an old electrum wallet that has almost 2btc in it. These were a consolidation of an old janky bitcoin cart that I had that would not forward ALL of the coin people paid, but always kept a small amount of change. No big deal in 2014, but now its worth something! This one wallet has coin from almost 6800 tx's. Electrum simply can't handle it and will not synchronise. Any ideas?
submitted by cosmiccharlie88 to Bitcoin [link] [comments]

Why i’m bullish on Zilliqa (long read)

Hey all, I've been researching coins since 2017 and have gone through 100s of them in the last 3 years. I got introduced to blockchain via Bitcoin of course, analysed Ethereum thereafter and from that moment I have a keen interest in smart contact platforms. I’m passionate about Ethereum but I find Zilliqa to have a better risk reward ratio. Especially because Zilliqa has found an elegant balance between being secure, decentralised and scalable in my opinion.
Below I post my analysis why from all the coins I went through I’m most bullish on Zilliqa (yes I went through Tezos, EOS, NEO, VeChain, Harmony, Algorand, Cardano etc.). Note that this is not investment advice and although it's a thorough analysis there is obviously some bias involved. Looking forward to what you all think!
Fun fact: the name Zilliqa is a play on ‘silica’ silicon dioxide which means “Silicon for the high-throughput consensus computer.”
This post is divided into (i) Technology, (ii) Business & Partnerships, and (iii) Marketing & Community. I’ve tried to make the technology part readable for a broad audience. If you’ve ever tried understanding the inner workings of Bitcoin and Ethereum you should be able to grasp most parts. Otherwise just skim through and once you are zoning out head to the next part.
Technology and some more:
Introduction The technology is one of the main reasons why I’m so bullish on Zilliqa. First thing you see on their website is: “Zilliqa is a high-performance, high-security blockchain platform for enterprises and next-generation applications.” These are some bold statements.
Before we deep dive into the technology let’s take a step back in time first as they have quite the history. The initial research paper from which Zilliqa originated dates back to August 2016: Elastico: A Secure Sharding Protocol For Open Blockchains where Loi Luu (Kyber Network) is one of the co-authors. Other ideas that led to the development of what Zilliqa has become today are: Bitcoin-NG, collective signing CoSi, ByzCoin and Omniledger.
The technical white paper was made public in August 2017 and since then they have achieved everything stated in the white paper and also created their own open source intermediate level smart contract language called Scilla (functional programming language similar to OCaml) too.
Mainnet is live since end of January 2019 with daily transaction rate growing continuously. About a week ago mainnet reached 5 million transactions, 500.000+ addresses in total along with 2400 nodes keeping the network decentralised and secure. Circulating supply is nearing 11 billion and currently only mining rewards are left. Maximum supply is 21 billion with annual inflation being 7.13% currently and will only decrease with time.
Zilliqa realised early on that the usage of public cryptocurrencies and smart contracts were increasing but decentralised, secure and scalable alternatives were lacking in the crypto space. They proposed to apply sharding onto a public smart contract blockchain where the transaction rate increases almost linear with the increase in amount of nodes. More nodes = higher transaction throughput and increased decentralisation. Sharding comes in many forms and Zilliqa uses network-, transaction- and computational sharding. Network sharding opens up the possibility of using transaction- and computational sharding on top. Zilliqa does not use state sharding for now. We’ll come back to this later.
Before we continue disecting how Zilliqa achieves such from a technological standpoint it’s good to keep in mind that a blockchain being decentralised and secure and scalable is still one of the main hurdles in allowing widespread usage of decentralised networks. In my opinion this needs to be solved first before blockchains can get to the point where they can create and add large scale value. So I invite you to read the next section to grasp the underlying fundamentals. Because after all these premises need to be true otherwise there isn’t a fundamental case to be bullish on Zilliqa, right?
Down the rabbit hole
How have they achieved this? Let’s define the basics first: key players on Zilliqa are the users and the miners. A user is anybody who uses the blockchain to transfer funds or run smart contracts. Miners are the (shard) nodes in the network who run the consensus protocol and get rewarded for their service in Zillings (ZIL). The mining network is divided into several smaller networks called shards, which is also referred to as ‘network sharding’. Miners subsequently are randomly assigned to a shard by another set of miners called DS (Directory Service) nodes. The regular shards process transactions and the outputs of these shards are eventually combined by the DS shard as they reach consensus on the final state. More on how these DS shards reach consensus (via pBFT) will be explained later on.
The Zilliqa network produces two types of blocks: DS blocks and Tx blocks. One DS Block consists of 100 Tx Blocks. And as previously mentioned there are two types of nodes concerned with reaching consensus: shard nodes and DS nodes. Becoming a shard node or DS node is being defined by the result of a PoW cycle (Ethash) at the beginning of the DS Block. All candidate mining nodes compete with each other and run the PoW (Proof-of-Work) cycle for 60 seconds and the submissions achieving the highest difficulty will be allowed on the network. And to put it in perspective: the average difficulty for one DS node is ~ 2 Th/s equaling 2.000.000 Mh/s or 55 thousand+ GeForce GTX 1070 / 8 GB GPUs at 35.4 Mh/s. Each DS Block 10 new DS nodes are allowed. And a shard node needs to provide around 8.53 GH/s currently (around 240 GTX 1070s). Dual mining ETH/ETC and ZIL is possible and can be done via mining software such as Phoenix and Claymore. There are pools and if you have large amounts of hashing power (Ethash) available you could mine solo.
The PoW cycle of 60 seconds is a peak performance and acts as an entry ticket to the network. The entry ticket is called a sybil resistance mechanism and makes it incredibly hard for adversaries to spawn lots of identities and manipulate the network with these identities. And after every 100 Tx Blocks which corresponds to roughly 1,5 hour this PoW process repeats. In between these 1,5 hour no PoW needs to be done meaning Zilliqa’s energy consumption to keep the network secure is low. For more detailed information on how mining works click here.
Okay, hats off to you. You have made it this far. Before we go any deeper down the rabbit hole we first must understand why Zilliqa goes through all of the above technicalities and understand a bit more what a blockchain on a more fundamental level is. Because the core of Zilliqa’s consensus protocol relies on the usage of pBFT (practical Byzantine Fault Tolerance) we need to know more about state machines and their function. Navigate to Viewblock, a Zilliqa block explorer, and just come back to this article. We will use this site to navigate through a few concepts.
We have established that Zilliqa is a public and distributed blockchain. Meaning that everyone with an internet connection can send ZILs, trigger smart contracts etc. and there is no central authority who fully controls the network. Zilliqa and other public and distributed blockchains (like Bitcoin and Ethereum) can also be defined as state machines.
Taking the liberty of paraphrasing examples and definitions given by Samuel Brooks’ medium article, he describes the definition of a blockchain (like Zilliqa) as:
“A peer-to-peer, append-only datastore that uses consensus to synchronise cryptographically-secure data”.
Next he states that: >“blockchains are fundamentally systems for managing valid state transitions”.* For some more context, I recommend reading the whole medium article to get a better grasp of the definitions and understanding of state machines. Nevertheless, let’s try to simplify and compile it into a single paragraph. Take traffic lights as an example: all its states (red, amber and green) are predefined, all possible outcomes are known and it doesn’t matter if you encounter the traffic light today or tomorrow. It will still behave the same. Managing the states of a traffic light can be done by triggering a sensor on the road or pushing a button resulting in one traffic lights’ state going from green to red (via amber) and another light from red to green.
With public blockchains like Zilliqa this isn’t so straightforward and simple. It started with block #1 almost 1,5 years ago and every 45 seconds or so a new block linked to the previous block is being added. Resulting in a chain of blocks with transactions in it that everyone can verify from block #1 to the current #647.000+ block. The state is ever changing and the states it can find itself in are infinite. And while the traffic light might work together in tandem with various other traffic lights, it’s rather insignificant comparing it to a public blockchain. Because Zilliqa consists of 2400 nodes who need to work together to achieve consensus on what the latest valid state is while some of these nodes may have latency or broadcast issues, drop offline or are deliberately trying to attack the network etc.
Now go back to the Viewblock page take a look at the amount of transaction, addresses, block and DS height and then hit refresh. Obviously as expected you see new incremented values on one or all parameters. And how did the Zilliqa blockchain manage to transition from a previous valid state to the latest valid state? By using pBFT to reach consensus on the latest valid state.
After having obtained the entry ticket, miners execute pBFT to reach consensus on the ever changing state of the blockchain. pBFT requires a series of network communication between nodes, and as such there is no GPU involved (but CPU). Resulting in the total energy consumed to keep the blockchain secure, decentralised and scalable being low.
pBFT stands for practical Byzantine Fault Tolerance and is an optimisation on the Byzantine Fault Tolerant algorithm. To quote Blockonomi: “In the context of distributed systems, Byzantine Fault Tolerance is the ability of a distributed computer network to function as desired and correctly reach a sufficient consensus despite malicious components (nodes) of the system failing or propagating incorrect information to other peers.” Zilliqa is such a distributed computer network and depends on the honesty of the nodes (shard and DS) to reach consensus and to continuously update the state with the latest block. If pBFT is a new term for you I can highly recommend the Blockonomi article.
The idea of pBFT was introduced in 1999 - one of the authors even won a Turing award for it - and it is well researched and applied in various blockchains and distributed systems nowadays. If you want more advanced information than the Blockonomi link provides click here. And if you’re in between Blockonomi and University of Singapore read the Zilliqa Design Story Part 2 dating from October 2017.
Quoting from the Zilliqa tech whitepaper: “pBFT relies upon a correct leader (which is randomly selected) to begin each phase and proceed when the sufficient majority exists. In case the leader is byzantine it can stall the entire consensus protocol. To address this challenge, pBFT offers a view change protocol to replace the byzantine leader with another one.”
pBFT can tolerate ⅓ of the nodes being dishonest (offline counts as Byzantine = dishonest) and the consensus protocol will function without stalling or hiccups. Once there are more than ⅓ of dishonest nodes but no more than ⅔ the network will be stalled and a view change will be triggered to elect a new DS leader. Only when more than ⅔ of the nodes are dishonest (>66%) double spend attacks become possible.
If the network stalls no transactions can be processed and one has to wait until a new honest leader has been elected. When the mainnet was just launched and in its early phases, view changes happened regularly. As of today the last stalling of the network - and view change being triggered - was at the end of October 2019.
Another benefit of using pBFT for consensus besides low energy is the immediate finality it provides. Once your transaction is included in a block and the block is added to the chain it’s done. Lastly, take a look at this article where three types of finality are being defined: probabilistic, absolute and economic finality. Zilliqa falls under the absolute finality (just like Tendermint for example). Although lengthy already we skipped through some of the inner workings from Zilliqa’s consensus: read the Zilliqa Design Story Part 3 and you will be close to having a complete picture on it. Enough about PoW, sybil resistance mechanism, pBFT etc. Another thing we haven’t looked at yet is the amount of decentralisation.
Currently there are four shards, each one of them consisting of 600 nodes. 1 shard with 600 so called DS nodes (Directory Service - they need to achieve a higher difficulty than shard nodes) and 1800 shard nodes of which 250 are shard guards (centralised nodes controlled by the team). The amount of shard guards has been steadily declining from 1200 in January 2019 to 250 as of May 2020. On the Viewblock statistics you can see that many of the nodes are being located in the US but those are only the (CPU parts of the) shard nodes who perform pBFT. There is no data from where the PoW sources are coming. And when the Zilliqa blockchain starts reaching their transaction capacity limit, a network upgrade needs to be executed to lift the current cap of maximum 2400 nodes to allow more nodes and formation of more shards which will allow to network to keep on scaling according to demand.
Besides shard nodes there are also seed nodes. The main role of seed nodes is to serve as direct access points (for end users and clients) to the core Zilliqa network that validates transactions. Seed nodes consolidate transaction requests and forward these to the lookup nodes (another type of nodes) for distribution to the shards in the network. Seed nodes also maintain the entire transaction history and the global state of the blockchain which is needed to provide services such as block explorers. Seed nodes in the Zilliqa network are comparable to Infura on Ethereum.
The seed nodes were first only operated by Zilliqa themselves, exchanges and Viewblock. Operators of seed nodes like exchanges had no incentive to open them for the greater public.They were centralised at first. Decentralisation at the seed nodes level has been steadily rolled out since March 2020 ( Zilliqa Improvement Proposal 3 ). Currently the amount of seed nodes is being increased, they are public facing and at the same time PoS is applied to incentivize seed node operators and make it possible for ZIL holders to stake and earn passive yields. Important distinction: seed nodes are not involved with consensus! That is still PoW as entry ticket and pBFT for the actual consensus.
5% of the block rewards are being assigned to seed nodes (from the beginning in 2019) and those are being used to pay out ZIL stakers.The 5% block rewards with an annual yield of 10.03% translates to roughly 610 MM ZILs in total that can be staked. Exchanges use the custodial variant of staking and wallets like Moonlet will use the non custodial version (starting in Q3 2020). Staking is being done by sending ZILs to a smart contract created by Zilliqa and audited by Quantstamp.
With a high amount of DS & shard nodes and seed nodes becoming more decentralised too, Zilliqa qualifies for the label of decentralised in my opinion.
Smart contracts
Let me start by saying I’m not a developer and my programming skills are quite limited. So I‘m taking the ELI5 route (maybe 12) but if you are familiar with Javascript, Solidity or specifically OCaml please head straight to Scilla - read the docs to get a good initial grasp of how Zilliqa’s smart contract language Scilla works and if you ask yourself “why another programming language?” check this article. And if you want to play around with some sample contracts in an IDE click here. Faucet can be found here. And more information on architecture, dapp development and API can be found on the Developer Portal.
If you are more into listening and watching: check this recent webinar explaining Zilliqa and Scilla. Link is time stamped so you’ll start right away with a platform introduction, R&D roadmap 2020 and afterwards a proper Scilla introduction.
Generalised: programming languages can be divided into being ‘object oriented’ or ‘functional’. Here is an ELI5 given by software development academy: > “all programmes have two basic components, data – what the programme knows – and behaviour – what the programme can do with that data. So object-oriented programming states that combining data and related behaviours in one place, is called “object”, which makes it easier to understand how a particular program works. On the other hand, functional programming argues that data and behaviour are different things and should be separated to ensure their clarity.”
Scilla is on the functional side and shares similarities with OCaml: > OCaml is a general purpose programming language with an emphasis on expressiveness and safety. It has an advanced type system that helps catch your mistakes without getting in your way. It's used in environments where a single mistake can cost millions and speed matters, is supported by an active community, and has a rich set of libraries and development tools. For all its power, OCaml is also pretty simple, which is one reason it's often used as a teaching language.
Scilla is blockchain agnostic, can be implemented onto other blockchains as well, is recognised by academics and won a so called Distinguished Artifact Award award at the end of last year.
One of the reasons why the Zilliqa team decided to create their own programming language focused on preventing smart contract vulnerabilities safety is that adding logic on a blockchain, programming, means that you cannot afford to make mistakes. Otherwise it could cost you. It’s all great and fun blockchains being immutable but updating your code because you found a bug isn’t the same as with a regular web application for example. And with smart contracts it inherently involves cryptocurrencies in some form thus value.
Another difference with programming languages on a blockchain is gas. Every transaction you do on a smart contract platform like Zilliqa for Ethereum costs gas. With gas you basically pay for computational costs. Sending a ZIL from address A to address B costs 0.001 ZIL currently. Smart contracts are more complex, often involve various functions and require more gas (if gas is a new concept click here ).
So with Scilla, similar to Solidity, you need to make sure that “every function in your smart contract will run as expected without hitting gas limits. An improper resource analysis may lead to situations where funds may get stuck simply because a part of the smart contract code cannot be executed due to gas limits. Such constraints are not present in traditional software systems”. Scilla design story part 1
Some examples of smart contract issues you’d want to avoid are: leaking funds, ‘unexpected changes to critical state variables’ (example: someone other than you setting his or her address as the owner of the smart contract after creation) or simply killing a contract.
Scilla also allows for formal verification. Wikipedia to the rescue:
In the context of hardware and software systems, formal verification is the act of proving or disproving the correctness of intended algorithms underlying a system with respect to a certain formal specification or property, using formal methods of mathematics.
Formal verification can be helpful in proving the correctness of systems such as: cryptographic protocols, combinational circuits, digital circuits with internal memory, and software expressed as source code.
Scilla is being developed hand-in-hand with formalization of its semantics and its embedding into the Coq proof assistant — a state-of-the art tool for mechanized proofs about properties of programs.”
Simply put, with Scilla and accompanying tooling developers can be mathematically sure and proof that the smart contract they’ve written does what he or she intends it to do.
Smart contract on a sharded environment and state sharding
There is one more topic I’d like to touch on: smart contract execution in a sharded environment (and what is the effect of state sharding). This is a complex topic. I’m not able to explain it any easier than what is posted here. But I will try to compress the post into something easy to digest.
Earlier on we have established that Zilliqa can process transactions in parallel due to network sharding. This is where the linear scalability comes from. We can define simple transactions: a transaction from address A to B (Category 1), a transaction where a user interacts with one smart contract (Category 2) and the most complex ones where triggering a transaction results in multiple smart contracts being involved (Category 3). The shards are able to process transactions on their own without interference of the other shards. With Category 1 transactions that is doable, with Category 2 transactions sometimes if that address is in the same shard as the smart contract but with Category 3 you definitely need communication between the shards. Solving that requires to make a set of communication rules the protocol needs to follow in order to process all transactions in a generalised fashion.
And this is where the downsides of state sharding comes in currently. All shards in Zilliqa have access to the complete state. Yes the state size (0.1 GB at the moment) grows and all of the nodes need to store it but it also means that they don’t need to shop around for information available on other shards. Requiring more communication and adding more complexity. Computer science knowledge and/or developer knowledge required links if you want to dig further: Scilla - language grammar Scilla - Foundations for Verifiable Decentralised Computations on a Blockchain Gas Accounting NUS x Zilliqa: Smart contract language workshop
Easier to follow links on programming Scilla Ivan on Tech
Roadmap / Zilliqa 2.0
There is no strict defined roadmap but here are topics being worked on. And via the Zilliqa website there is also more information on the projects they are working on.
Business & Partnerships  
It’s not only technology in which Zilliqa seems to be excelling as their ecosystem has been expanding and starting to grow rapidly. The project is on a mission to provide OpenFinance (OpFi) to the world and Singapore is the right place to be due to its progressive regulations and futuristic thinking. Singapore has taken a proactive approach towards cryptocurrencies by introducing the Payment Services Act 2019 (PS Act). Among other things, the PS Act will regulate intermediaries dealing with certain cryptocurrencies, with a particular focus on consumer protection and anti-money laundering. It will also provide a stable regulatory licensing and operating framework for cryptocurrency entities, effectively covering all crypto businesses and exchanges based in Singapore. According to PWC 82% of the surveyed executives in Singapore reported blockchain initiatives underway and 13% of them have already brought the initiatives live to the market. There is also an increasing list of organisations that are starting to provide digital payment services. Moreover, Singaporean blockchain developers Building Cities Beyond has recently created an innovation $15 million grant to encourage development on its ecosystem. This all suggest that Singapore tries to position itself as (one of) the leading blockchain hubs in the world.
Zilliqa seems to already taking advantage of this and recently helped launch Hg Exchange on their platform, together with financial institutions PhillipCapital, PrimePartners and Fundnel. Hg Exchange, which is now approved by the Monetary Authority of Singapore (MAS), uses smart contracts to represent digital assets. Through Hg Exchange financial institutions worldwide can use Zilliqa's safe-by-design smart contracts to enable the trading of private equities. For example, think of companies such as Grab, AirBnB, SpaceX that are not available for public trading right now. Hg Exchange will allow investors to buy shares of private companies & unicorns and capture their value before an IPO. Anquan, the main company behind Zilliqa, has also recently announced that they became a partner and shareholder in TEN31 Bank, which is a fully regulated bank allowing for tokenization of assets and is aiming to bridge the gap between conventional banking and the blockchain world. If STOs, the tokenization of assets, and equity trading will continue to increase, then Zilliqa’s public blockchain would be the ideal candidate due to its strategic positioning, partnerships, regulatory compliance and the technology that is being built on top of it.
What is also very encouraging is their focus on banking the un(der)banked. They are launching a stablecoin basket starting with XSGD. As many of you know, stablecoins are currently mostly used for trading. However, Zilliqa is actively trying to broaden the use case of stablecoins. I recommend everybody to read this text that Amrit Kumar wrote (one of the co-founders). These stablecoins will be integrated in the traditional markets and bridge the gap between the crypto world and the traditional world. This could potentially revolutionize and legitimise the crypto space if retailers and companies will for example start to use stablecoins for payments or remittances, instead of it solely being used for trading.
Zilliqa also released their DeFi strategic roadmap (dating November 2019) which seems to be aligning well with their OpFi strategy. A non-custodial DEX is coming to Zilliqa made by Switcheo which allows cross-chain trading (atomic swaps) between ETH, EOS and ZIL based tokens. They also signed a Memorandum of Understanding for a (soon to be announced) USD stablecoin. And as Zilliqa is all about regulations and being compliant, I’m speculating on it to be a regulated USD stablecoin. Furthermore, XSGD is already created and visible on block explorer and XIDR (Indonesian Stablecoin) is also coming soon via StraitsX. Here also an overview of the Tech Stack for Financial Applications from September 2019. Further quoting Amrit Kumar on this:
There are two basic building blocks in DeFi/OpFi though: 1) stablecoins as you need a non-volatile currency to get access to this market and 2) a dex to be able to trade all these financial assets. The rest are build on top of these blocks.
So far, together with our partners and community, we have worked on developing these building blocks with XSGD as a stablecoin. We are working on bringing a USD-backed stablecoin as well. We will soon have a decentralised exchange developed by Switcheo. And with HGX going live, we are also venturing into the tokenization space. More to come in the future.”*
Additionally, they also have this ZILHive initiative that injects capital into projects. There have been already 6 waves of various teams working on infrastructure, innovation and research, and they are not from ASEAN or Singapore only but global: see Grantees breakdown by country. Over 60 project teams from over 20 countries have contributed to Zilliqa's ecosystem. This includes individuals and teams developing wallets, explorers, developer toolkits, smart contract testing frameworks, dapps, etc. As some of you may know, Unstoppable Domains (UD) blew up when they launched on Zilliqa. UD aims to replace cryptocurrency addresses with a human readable name and allows for uncensorable websites. Zilliqa will probably be the only one able to handle all these transactions onchain due to ability to scale and its resulting low fees which is why the UD team launched this on Zilliqa in the first place. Furthermore, Zilliqa also has a strong emphasis on security, compliance, and privacy, which is why they partnered with companies like Elliptic, ChainSecurity (part of PwC Switzerland), and Incognito. Their sister company Aqilliz (Zilliqa spelled backwards) focuses on revolutionizing the digital advertising space and is doing interesting things like using Zilliqa to track outdoor digital ads with companies like Foodpanda.
Zilliqa is listed on nearly all major exchanges, having several different fiat-gateways and recently have been added to Binance’s margin trading and futures trading with really good volume. They also have a very impressive team with good credentials and experience. They dont just have “tech people”. They have a mix of tech people, business people, marketeers, scientists, and more. Naturally, it's good to have a mix of people with different skill sets if you work in the crypto space.
Marketing & Community
Zilliqa has a very strong community. If you just follow their Twitter their engagement is much higher for a coin that has approximately 80k followers. They also have been ‘coin of the day’ by LunarCrush many times. LunarCrush tracks real-time cryptocurrency value and social data. According to their data it seems Zilliqa has a more fundamental and deeper understanding of marketing and community engagement than almost all other coins. While almost all coins have been a bit frozen in the last months, Zilliqa seems to be on its own bull run. It was somewhere in the 100s a few months ago and is currently ranked #46 on CoinGecko. Their official Telegram also has over 20k people and is very active, and their community channel which is over 7k now is more active and larger than many other official channels. Their local communities) also seem to be growing.
Moreover, their community started ‘Zillacracy’ together with the Zilliqa core team ( see ). It’s a community run initiative where people from all over the world are now helping with marketing and development on Zilliqa. Since its launch in February 2020 they have been doing a lot and will also run their own non custodial seed node for staking. This seed node will also allow them to start generating revenue for them to become a self sustaining entity that could potentially scale up to become a decentralized company working in parallel with the Zilliqa core team. Comparing it to all the other smart contract platforms (e.g. Cardano, EOS, Tezos etc.) they don't seem to have started a similar initiatives (correct me if I’m wrong though). This suggest in my opinion that these other smart contract platforms do not fully understand how to utilize the ‘power of the community’. This is something you cannot ‘buy with money’ and gives many projects in the space a disadvantage.
Zilliqa also released two social products called SocialPay and Zeeves. SocialPay allows users to earn ZILs while tweeting with a specific hashtag. They have recently used it in partnership with the Singapore Red Cross for a marketing campaign after their initial pilot program. It seems like a very valuable social product with a good use case. I can see a lot of traditional companies entering the space through this product, which they seem to suggest will happen. Tokenizing hashtags with smart contracts to get network effect is a very smart and innovative idea.
Regarding Zeeves, this is a tipping bot for Telegram. They already have 1000s of signups and they plan to keep upgrading it for more and more people to use it (e.g. they recently have added a quiz features). They also use it during AMAs to reward people in real time. It’s a very smart approach to grow their communities and get familiar with ZIL. I can see this becoming very big on Telegram. This tool suggests, again, that the Zilliqa team has a deeper understanding what the crypto space and community needs and is good at finding the right innovative tools to grow and scale.
To be honest, I haven’t covered everything (i’m also reaching the character limited haha). So many updates happening lately that it's hard to keep up, such as the International Monetary Fund mentioning Zilliqa in their report, custodial and non-custodial Staking, Binance Margin, Futures & Widget, entering the Indian market, and more. The Head of Marketing Colin Miles has also released this as an overview of what is coming next. And last but not least, Vitalik Buterin has been mentioning Zilliqa lately acknowledging Zilliqa and mentioning that both projects have a lot of room to grow. There is much more info of course and a good part of it has been served to you on a silver platter. I invite you to continue researching by yourself :-) And if you have any comments or questions please post here!
submitted by haveyouheardaboutit to CryptoCurrency [link] [comments]

[UPDATE][M] Ryo Currency "Fermi Paradox"

[UPDATE][M] Ryo Currency
[M] - Mandatory. The update contains security fixes or contains fork update (wallet will stop working after some height reach).
IMPORTANT: The latest version is (contains minor update after
Meet Ryo Currency update - Fermi Paradox. In this update we will discuss 3 updates and do one announcement in the source code, 2 of them will be the first among any Cryptonote projects:
  • Wallet Scan speedup thanks to ECC and multi-threading library. Increased wallet scan speed when processing blockchain. New Elliptic Curve Cryptography library combined with implemented multi-threading that ustilises user's CPU results in reduced block verification up to 5x times compared with previous modes.
  • Plateau emission curve. Ryo's block reward changes every 6-months following a "Plateau Curve" distribution model. The modification of emission curve was initiated and debated with Ryo community. The following fork will finalise and implement that change.Notice: the difference between previous and this model will take effect at block height 394470.Read more about Ryo plateau emission curve
  • Various code edits, refactoring and minor fixes. There are multiple code fixes and edits that could be considered minor when looked in particular, but when looked in general - result in more than 35.000 lines of code being changed making core code more clean, optimised and bugfixed.Check Ryo Github repository
Research and studies of Ryo Dev team showed that current ring signature technology as it is - is obsolete and has too many flaws to be considered as a means for reaching the goal of the second level of of privacy. Therefore we will be replacing ring signatures with second generation ZK-proofs technology in observable future and temporarily downgrade privacy level to 1.
In general, you can consider privacy levels like that:
  • level 0 - everyone can look into your wallet and know your transactions (BTC level)
  • level 1 - nobody can see inside of your wallet, but each note has a serial number (yes, this is real life money level and in CN coins is implemented using stealth addresses)
  • level 2 - notes you have don't have a serial number to a guy that gave you one, and no-one can't know if you spent it later (In CN coins it is implemented using ring signatures - which are the failing ones)
What we are saying is over the past year or two, researches stripped ring signatures of their privacy properties so much, that we think it is no longer fair to say that we (or Monero, which is even worse since it has even smaller ring size compared to Ryo) or any other CN project that uses it - meet the level 2 of privacy.
So, summarising in non-tech words what does it mean - when you are doing a transaction and want to imagine how it looks like in system:
  • bitcoin - "I spent output 10, worth 1 BTC and output 22, worth 0.5 BTC"
  • ring signature (current CN coins) - "I spent output 10, 14, 18 or 20, and output 16, 18, 19, or 22"
  • zk-proof - "I spent something."

Fork is scheduled on block 362000: you can check fork countdown on Ryo Currency website

Please update your wallets before this block, or your previous wallet will stop synchronising after the block 362000:
  • Ryo Wallet Atom: download latest Atom installer when annouced update to version 1.5.0, start it and perform reinstall.
  • Ryo cli binaries: download or compile from source updated binaries from Github version and unzip it, and place your wallet key files in new folder.
  • Pool owners and exchanges are notified about updating their nodes to the latest version before the fork.
Questions you might have regarding the fork:
  • What will happen with mining algorithm - will it change or what does "fork" mean - coin is split on 2? No, "fork" basically means major code update that is being activated on a specified block height. There will be no mining algorithm change or chainsplit.
  • Ryo roadmap indicates that you had in plans reaching 100x ring sizes. In light of future introduction of ZK-proofs does it mean that this is not aplicable? Yes, we eventually will be replacing ring signature technology on ZK-proofs, which is more fundamental change than trying to "beat dead horse" with ring signatures.
  • What about atomic swaps? Ryo roadmap indicates it being planned, is it still possible with introducing ZK-proofs? Yes it is! And we aim to implement this feature after all necessary updates in core code. It is important to have everything implemented and tested before adding that feature.
  • What is a ZK-proof? ZK stands for zero-knowledge. In cryptography, a zero-knowledge proof is a method by which one party (the prover) can prove to another party (the verifier) that they know a value x, without conveying any information apart from the fact that they know the value xYou can read more about zero-knowledge proof (with real life examples) here.
  • Will blockchain grow faster (what about tx size) when moving to ZK-proofs? Overall, transactions and blocks using ZK-proofs will be even smaller in size than pre-fork ring signatures with bulletproofs! Plus it enables transactions to be aggregated together - this is obviously a major scalability gain for Ryo Currency.
  • I heard or as far I understand that ZK-proofs are somewhat less private? Does it mean that you are not privacy-oriented project anymore? No, in short - we decided to do this change to second gen. ZK-proofs, because ring signatures as is are too weak on providing enough for us default level of privacy and overall are considered now as an obsolete technology. So we don't want to say that we have a privacy level of 2, when research shows that it is not.
  • Ok, after fork - will we be using uniform payment ID-s to do transactions on exchanges? Yes. There are no changes regarding usage of payment ID-s and integrated addresses. We will be still using ring signatures, but also are announcing our goal on moving to ZK-proofs.
  • What else is there in plans/ideas you have in development of Ryo? Besides all plans and development ongoing with Ryo (wallets, infrastructure, core code and researches) we also developed and improve Mining platform RagerX. It is a all-in-one mining platform that unites a miner, pplns pool, OS, GUI flasher utillity, pool frontend and has advanced social features as well as 2 level affiliate program. In observable future we will add Cryptonight-GPU mining possibillity.We are implementing RagerX so people can mine CPU coins and Ryo simultaneously. Which means more eyes on Ryo, especially from fresh members.
  • Are the ring signature issues that have been discovered are applicable to other ring signature based coins like Monero? Yes.
submitted by RyocurrencyRu to ryocurrency [link] [comments]

Question re Bitcoin Core

Probably a really dumb question but this is bitcoin beginners, so...
I haven't used bitcoin for a number of years now, dawned on me recently though I have a small amount still in my desktop Bitcoin Core wallet. I've just opened that up and the network is 186 weeks behind.
So my question is, if I send the BTC in my Core wallet to a web-based wallet (e.g. will the transaction not be made until the network has fully synchronised on the core wallet?
Hope this makes sense, any help much appreciated.
submitted by thedudeabides9 to BitcoinBeginners [link] [comments]

Electrum-ECC light wallet released

It’s so simple. Just start Electrum-ECC, create your wallet, then send and receive ECC immediately. No 8+ hours sync necessary!
For download links see below.
Screenshot of the Electrum-ECC main screen
Electrum-ECC gives users a simple desktop wallet app (Windows, MacOs, Linux) that does not need a local copy of the blockchain. Rather than the lengthy blockchain synchronisation process required to sync a full node, the Electrum-ECC client securely connects to an Electrum server for all its blockchain business whilst all crypto keys are held securely on the user’s device.
The Electrum-ECC wallet is created from a key phrase consisting of 12 random words. This means that if the user’s device is stolen or experiences unrecoverable data loss, the exact same wallet can be re-created on another device simply by entering the 12 word key phrase. And for the ultimate in cold storage security, you can securely delete your Electrum-ECC installation with your wallet key phrase stored in a safe place for later re-creation.
However, because the Electrum-ECC client app is not a full node, it is unable to stake and supports only payment transactions. If you wish to support ECC’s network security by staking or access future network services, you need to run a full node. You can run both, but bear mind that even with both installed on the same device, the full node and Electrum-ECC wallets remain entirely separate.
Electrum-ECC has been adapted from recent versions of the ElectrumX server and Electrum client apps for Bitcoin. It is tried and tested software with a very large community of users. Rather than fork the ElectrumX server, the changes necessary to support ECC were contributed back into the ElectrumX project, which already has support for a number of other coins. You can see those changes to add ECC support here:
The client app we decided to use (there are several) was not set up for multi-coin support, so it was necessary to fork that into the ECC project:
To get early access to Electrum-ECC:
submitted by smogm to ecc [link] [comments]

Balance 0 after two confirmed transactions

Hi All,
I've been off the bitcoin train for a while. Updated the bread wallet and had two transaction sent to the wallet. Have have use block chain explorer to search the transactions and they are both confirmed. I copied the addresses to clipboard via the clipboard tool in the app. My balance is showing 0 : ( I have tried: - uninstalling and reinstalling the app - unlinking the wallet and restoring the wallet - synchronising pre and post both of the above procedures. The outcome was that I could see the balance with only one of the transactions showing but then when I reopened the app it was showing 0 again.
I am halfway through another synchronisation but I’m not hopeful.
Any advice on how to fix this is appreciated.
I have emailed the brdapp support team.
submitted by jenininity2 to BRDapp [link] [comments]

Groestlcoin Christmas Release!

Groestlcoin Dec 2018 Christmas Release Update

As per usual the 3 months has been all hand-on-deck, helping to bring further adoption utilities to Groestlcoin. The markets have been red but as always that doesn't stop the show from going on with regards to the development since the last release update on 24th September. Here's a recap of what has happened so far:


What’s New Today?

Groestlcoin on Trezor Model T

As of the latest version of the Trezor Model T firmware, Groestlcoin is now officially supported! The Trezor Model T is the next-generation cryptocurrency hardware wallet, designed to be your universal vault for all of your digital assets. Store and encrypt your coins, passwords and other digital keys with confidence. The Trezor Model T now supports over 500 cryptocurrencies.

Blockbook MainNet & TestNet Block Explorer

Blockbook is an open-source Groestlcoin blockchain explorer with complete REST and websocket APIs that can be used for writing web wallets and other apps that need more advanced blockchain queries than provided by groestlcoind RPC.
Blockbook REST API provides you with a convenient, powerful and simple way to read data from the groestlcoin network and with it, build your own services.


Blockbook is available via Testnet: Source code:

Edge Wallet

Groestlcoin has been added to the Edge wallet for Android and iOS. Edge wallet is secure, private and intuitive. By including support for ShapeShift, Simplex and Changelly, Edge allows you to seamlessly shift between digital currencies, anywhere with an internet connection.


Direct Android:

CoinID Wallet

We are excited to announce that Groestlcoin has been added to CoinID! With integrated cold and hot wallet support, and a host of other unique wallet features, CoinID can easily become your go-to wallet for storing Groestlcoin. More details can be found here:



Groestlcoin Sentinel - Windows Released

Groestlcoin Sentinel is the easiest and fastest way to track balances of your Groestlcoin addresses.
You can download it using the links below.
Download the Windows Wallet (64 bit) here:
Download the Windows Wallet (32 bit) here:
Source code:

Groestlcoin BIP39 Tool 0.3.9 Update

The Groestlcoin BIP39 tool is an open-source web tool for converting BIP39 mnemonic codes to addresses and private keys. This enables the greatest security against third-party wallets potentially disappearing – You’ll still have access to your funds thanks to this tool.
What’s New
Download the Groestlcoin BIP39 tool here:
Source code:
Or use hosted version:

Electrum-GRS 3.2.3 Update

Electrum-GRS is a lightweight "thin client" Groestlcoin wallet Windows, MacOS and Linux based on a client-server protocol. Its main advantages over the original Groestlcoin client include support for multi-signature wallets and not requiring the download of the entire block chain.
What’s New

Electrum + Android Version 3.2.3:

Windows & OSX:
sudo apt-get install python3-setuptools python3-pyqt5 python3-pip python3-dev libssl-dev sudo pip3 install groestlcoin_hash sudo pip3 install electrum-grs
GitHub Source server:
Github Source server installer:
Github Source client:

Groestlcoin ivendPay Integration

ivendPay and Groestlcoin cryptocurrency have announced the start of integration.
IT company ivendPay, the developer of a universal multicurrency payment module for automatic and retail trade, intends to integrate Groestlcoin cryptocurrency — one of the oldest and the most reputable Bitcoin forks into the payment system. Groestlcoin is characterized by instant transactions with almost zero commission and is optimal for mass retail trade where micropayments are mostly used.
According to Sergey Danilov, founder and CEO of ivendPay, Groestlcoin will become the 11th cryptocurrency integrated into the payment module. The first working vending machines for the sale of coffee, snacks and souvenirs, equipped with ivendPay modules, served the visitors of the CryptoEvent RIW exhibition at VDNKh in Moscow and accepted Bitcoin, Go Byte, Dash, Bitcoin Cash, Ethereum, Ethereum Classic, Zcash, Bitcoin Gold, Dogecoin and Emercoin. ivendPay terminals are designed and patented to accept payments in electronic money, cryptocurrencies and cash when connecting the corresponding cash terminal. Payment for the purchase takes a few seconds, the choice of the payment currency occurs at the time of placing the order on the screen, the payment is made by QR-code through the cryptocurrency wallet on the smartphone.
The interest in equipping vending machines with ivendPay terminals has already been shown by the companies of Malaysia and Israel, where first test networks would be installed. ivendPay compiles a waiting list for vending networks interested in buying terminals and searches for an investor to launch industrial production. According to Sergey Danilov, the universal payment terminal ivendPay for the vending machine will cost about $500. The founder of ivendPay has welcomed the appearance of Groestlcoin among integrated cryptocurrencies, as it is another step towards the realization of the basic idea of digital money - free and cross-border access to goods and services for everybody.
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

What is ICO? A Beginner’s Guide

What is ICO? A Beginner’s Guide
ICO stands for “Initial Coin Offering”. In a nutshell, ICO is a process to raise fund for a specific project in terms of cryptocurrency, such as Ethereum or Bitcoin, in return for its tokens that can be used in its specific services or applications.
Similar to initial public offering (IPO), instead of money in terms of fiat currencies e.g. U.S. Dollars is being raised, cryptocurrency is raised to support the project for ICO. In return, a certain number of tokens that is built on its specific application blockchain technology will be allocated to the contributors instead of shares. These tokens can be traded on some private exchanges.
Alternatively, some may describe ICO as an alternative mean of crowdfunding to support blockchain-related projects by means of token sale, of which the tokens can be applied to their services and applications.

How Does ICO Work?

From a creator’s perspective, a service or application is to be built based on blockchain technology with protocol, set of rules and white paper being established. Afterwards, the creators will bring forward the white paper, which will illustrate the details of the project e.g. project idea and mechanism, implementation schedule, capital required etc; and arrange token pre-sale, sale, marketing and listing through various communication means and private exchanges.
ICO will be opened for a fixed amount of token sales within a certain period, which usually varies from a few weeks to a month. Some may open for various rounds of token sales with limited amount of token to be sold during each phrase. Furthermore, some ICO may offer pre-sale for privileged or selected investors at a discount before the actual sales date. In general, the token issuers will be transparent regarding the token mechanism and token allocation, which will usually state in the white paper.

How Can I Participate?

1. Acquire Bitcoin or Ethereum through Registration with a Cryptocurrency Online Exchange
To participate in ICO or token sales, you need to obtain Bitcoin or Ether, which are more commonly accepted for ICO, as ICO or token sales usually will not accept fiat currencies like US dollars. Since most of the project idea and application of the ICO are leverage on the Ethereumplatform, hence Ether may be more popularly acceptable in general while Bitcoin or even some other altcoin can still be acceptable depending of different ICOs.
If you do not own any cryptocurrency, you can consider registering an account with an online cryptocurrency exchange, and then purchasing Bitcoin or Ether through the online exchange. It usually takes a few days, which varies from different online exchanges, for a normal person to register with the online exchange service providers because of the Know-your-customer (KYC) and Anti-money Laundering (AML) regulations. Due to KYC and AML regulations, you are usually required to provide your personal particulars e.g. name, date of birth etc., official identity proof e.g. passport copy, and address proof to open an account with the online exchanges, which they will then process and validate your information.
After you successfully registered an account with the online exchanges, you can purchase for Bitcoin, Ether, or any other available cryptocurrencies with your USD, EUR etc. as transferred to the online exchange. The cryptocurrencies that you purchased will be sent directly to your online wallet of the online exchange that you registered.
As you will rely on the online exchanges to keep your cryptocurrencies for you, it may be risky to store your cryptocurrencies with them, of which you may lose your cryptocurrency, due to counter-party risk such as the online exchange may collapse or being attacked or hacked by others. Therefore, it may be safer to store your cryptocurrencies in a more secure software or hardware blockchain wallet that is under your control.
2. Establish your Cryptocurrency Wallet
Since most of the ICO or token sales are held on Ethereum platform, it is better to have an Ethereum-based wallet. Do note that not all blockchain wallets are suitable or compatible for ICO as some may only support Bitcoin storage but not Ethereum-based cryptocurrency.
Some popular desktop and web-based wallet are MetaMask and MyEtherwallet respectively. MetaMask looks like a browser that allows you to access the Ethereum network, which does not only allow you to store and transfer your cryptocurrencies, but also allow you to access applications that leverages on decentralized Ethereum network. MyEtherWallet is slightly different from traditional web-based wallets, which does not hold your private keys. Therefore, the wallet owner will have the control of the Ethereum’s private key. It is an open-source wallet with inbuilt blockchain and ethereum facility. The wallet can also connect with other hardware wallets e.g. Ledger Nano S or Trezor, which you can access to your funds in these hardware wallets via MyEtherwallet browser.
3. Cryptocurrencies Transferred from Online Exchange to your Cryptocurrency Wallet
Most of the online exchange may not offer the access to the new token as offered by the ICO, therefore, if you send Bitcoin or Ether to the ICO address, you may not be able to receive the new tokens. As a result, you need to transfer the cryptocurrency bought via the online exchange to your Ethereum-based wallet that support the new token of the ICO.
Instead of storing large amount of funds in these desktop or web-based wallets as mentioned above, you can simply use it for ICO purpose such as fund transfer or purchase of new tokens. It may be more secure to store your cryptocurrencies in a hardware wallet or paper wallet instead as compare to desktop or web-based wallets.

Some successful ICOs
4. Registered for ICO Whitelist
Some ICOs to require participants to register in their whitelist before the token sales launch date, which has become a common trend. If you do not enrol in the whitelist, you cannot participate in the token sales afterwards. Normally, only successful whitelist participants can participate in it.
In general, there may be some criteria for you to be able to participate in the whitelist and hence token sales, for instance, some may exclude participants from specific jurisdiction such as China, US etc. depending on the practice of each ICO. To apply, each participant may need to provide some personal information, which usually includes name, email, Ether wallet address etc., and some may also require passport copy for KYC purpose. Besides, you may also need to provide the target number of tokens that they wish to purchase during token sales. Generally, there is a cap for the number of tokens that each participant can purchase the participants may not be able to purchase more than the allocated amount.
5. Points to Note before Token Sales
After you have successfully registered in the ICO whitelist, you can participate in the ICO by purchasing its new tokens.
Before anyone who wish to proceed with the token sales, you should read carefully the general terms of the ICO including but not limited to the details of the whitepaper, the token mechanism and the token purchase agreement. Besides, there are usually step-by-step guidelines to advise you on how to purchase the ICO tokens as provided by the ICO initiator. To learn more about the latest news about the ICO and stay up-to-date, you can join their social media channels such as Telegram, Slack etc.
As mentioned earlier, there is a limited timeframe for ICO to be opened for token sales, which the ICO will either state clearly the specific time or block numbers. You should ensure that you are synchronising the same time-zone when a specific time is given. For specific block numbers being provided, you can apply Ethereum block explorer to check the block numbers.
6. Purchase ICO Tokens
If you decided to proceed with the token sales, you need to send Ether from your wallet to the address as stated by the ICO team once the token sale begins. In parallel, you are required to pay “gas” for the “transaction”, hence you will have to set a gas limit in your wallet.
Before we move on, what is “Gas”?
In a nutshell, when you transfer cryptocurrencies, engage in a Ethereum-based smart contractor do anything on the ethereum network, you need to pay transaction fees. The payment will be calculated in terms of “Gas” which is to be paid in terms of Ether. Since blockchain is a decentralized technology, it requires miners to validate and execute each transaction that you made through the Ethereum network. Therefore, you need to pay the transaction fee or computation cost to these miners so that they could validate and execute your transactions successfully.
After your transaction to transfer Ether is successfully validated, you may come across the several common scenarios regarding your receipt of tokens depending the mechanism of each ICO. For example:
  • You may receive your tokens a few days after your transactions
  • You may receive your tokens after the end of the token sales
  • You may need to claim your tokens manually after the token sales

Extra Points to Note:

  • After you obtain the new ICO tokens, it may be better for you to transfer to a more secure wallet such as hardware or paper wallet
  • Be careful that the ICO wallet address as stated in the ICO website may be fake. This is because some hackers may hack the ICO websites and replace their own wallet address with the real ICO address.
Original Blog Post:
Disclaimer: This is neither a legal nor an investment advice. It does not represent any parties, including but not limited to previous and existing employers, partners etc, viewpoint and opinion. Moreover, anything written in this article is purely personal view and should not be constructed as investment advice or recommendation to participate in ICO.
submitted by Tokenberry to NewbieZone [link] [comments]

Groestlcoin June Development Update & Release!

Another Quarter, Another Release! The Groestlcoin production factory has been working overtime as always in order to deliver even more tech to push Groestlcoin mainstream when the time comes.
There have been many new fantastic wallets and exchanges added to Groestlcoins repertoire over the past 3 months so we will re-cap these before moving on to what is new today.


What's New

Re-forged: Groestlcoin Samourai

Groestlcoin Samourai is a wallet for the streets. A modern Groestlcoin wallet hand-forged to keep your transactions private, your identity masked, and your funds secure. Its main advantages are its extreme portability and is the most secure Groestlcoin mobile HD wallet.
We've built a wallet that Groestlcoin deserves. If you are looking for a wallet that Silicon Valley will never build, the regulators will never allow, and the VC's will never invest in, this is the perfect wallet for you.
![Groestlcoin Samourai Release Video](

Head over to the Groestlcoin Samourai Release Page here for the full release announcement.

New: GroestlImage

Groestlimage turns any file into a mnemonic phrase allowing users to generate Groestlcoin private keys and addresses based on the data URI of the provided file. A picture is worth a thousand Groestls.



Source Code

New: Groestlcoin Core Config Generator

Groestlcoin Core Config Generator is a simple GUI to configure the groestlcoin.conf file – A developers dream tool!
Each configuration option is available via the user interface, grouped by what attributes they affect. For ease of getting started with a new configuration, a variety of preset "node classes" are available on the right-hand-side of the screen. Selecting a preset will load our recommended base configuration for a node fitting that description, at which point you can then tune the configuration at the single option level.



Source Code

New: Groestlcoin Dumb Block Explorer

Dumb Block Explorer is a trivial block explorer written in a single PHP file. Now everybody can run their own block explorer.



Source Code

New: Groestlcoin SMS Push TX

Groestlcoin Simple Push TX is a server to push Groestlcoin transactions via SMS. Now everybody can send new transactions via SMS if the Internet is not usable (i.e. blocked by government entities or becomes otherwise unavailable).


Source Code

Update: Electrum-GRS 3.3.6

Electrum-GRS is Groestlcoins #1 thin-client for Windows, MacOS, Linux and Android, based on a client-server protocol. Supporting multi-sig wallets without the bloat of downloading the entire blockchain.

New Features (Universal)

New Features (Windows, MacOS, Linux)

New Features (Android)


Source Code
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Electrum Not Connected / Synchronising error

Hi, a couple of days ago I transferred a bit of bitcoin to my wallet. However, after sending it, my wallet is yet to connect and sometimes, when I get lucky, it connects to a server but permanently synchronises (I've left it on overnight). Is there anyway to fix this? I've tried personal servers, manual server select but I'm not sure what to do next. Thanks
I'm using Electrum 3.2.3 on Windows 10, and I've done transactions many many times before.
submitted by RaminUddin to Electrum [link] [comments]

Synchronising / tails issue?

First off I'll say I should be using the currently most updated version of tails. 3. something I think. I also have electrum 3.1.3
So, I made a bitcoin transaction from Coinbase to tails. At first it was taking awhile for the transaction to be completed and tails was still synchronising. Out of a stupid decision I decided to send the money before it finished synchronising as it usually works fine, Not that I aim to do this but have by mistake a few times and it normally just finishes and loads my wallet.
It wont stop synchronising tho, If I try send money it say's not enough funds. If I choose, and I've tried ever server on the list, a different server (right clicking and joining) it just shows the red dot.
The main issue I am having is I have already sent money to the wallet, not an amount I personally want to loose.
I also did not set up persistence due to more anonymity but I let go of that and set it up straight after all this. I saved everything including tails, personal data and network connections so I am assuming that means I'll have a password next login and my electrum wont need to be set up every time.
Can someone please give me an answer tho will this save the bitcoin I put into my electrum if it eventually loads and I shit down my pc then re boot again? Or dose the persistence only start saving from the next time you login with that password ?
1: If I set up persistence in tails in the same session I sent bitcoin to my electrum wallet but the wallet is still synchronising (usually still works, not sometime I try to do) Will it save my funds or will it start saving to my persistence from the next session and I loose my money?
2: Bitcoin has sent to electrum wallet address and it completed from coinbase, dose this the money is in hyper space and do I just wait it out a few days until electrum has it? Or is it gone forever? :(
submitted by THROWAWAYSadKid-666 to Electrum [link] [comments]

Electrum Wallet Issue (Lost Funds)

Hey guys. I'm using a combination of myceliumgear as well as electrum 3.2.3 to automate bitcoin payments on my website. I checked my site and all api keys/xpub keys remained the same. It's just as if my specific electrum wallet stopped adding the addresses myceliumgear was generating as well as updating funds.
This all stopped here:
Could anyone help me out with troubleshooting this? I notice my mycelium xpub key is the same as the one in my electrum wallet, so theoretically, it should be adding the addresses, but it's not and I'm at a loss of $600+ over the last 2 days.
Would appreciate any and all help.
Things I have tried: Choosing a different server and synchronising, loading up a different device entirely and importing using my seed.
submitted by skrzzy to Electrum [link] [comments]

is slushes pool transferring BTC's out to wallets?

my earned and confirmed BTC have been sitting at over .012 for over 8hrs. checked my slushes pool login and my wallet are using the same address. chat within the irc channel has advised 'it should be working in a few hours' but that was 6+hrs ago.
other than checking my waller and config slushes pool are using the same address, and my minimum payout is < my confirmed BTC is there anything I should do?
it is possible my wallet is port blocked or not seeing the network? how would I check that? [win 7 home premium os]
submitted by Iamnotasmartman_ to BitcoinMining [link] [comments]

How to Sync your Bitconnect QT wallet NEW updated How to Fast-Sync your wallet to the OK blockchain (Windows) BitConnect Wallet Not Syncing? The Fix! How To Quickly Sync A Wallet with Bootstrap (Litecoin/Bitcoin) Exporter ses Bitcoins du wallet bitcoin core sans la synchronisation complète

Ethereum Wallet führt dann eine schnelle Synchronisierung durch, bei der diese Angriffsblöcke übersprungen werden. Achtung: Stellen Sie sicher, dass Sie Ihr Keystore-Verzeichnis sichern, damit Sie nicht versehentlich Ihre Kontoinformationen löschen. Schließe Ethereum Wallet ab. Die mobile und online Geldbörsen von Bitcoin erfordern für ihre Arbeit keine so lange und komplizierte Bitcoin Wallet Synchronisation. Wenn sie eine Transaktion durchführen, wendet sich das System an die Transaktionsdatenbanken auf den Remote-Servern. Es ist zu beachten, dass diese Arbeitsweise nicht völlig sicher und anonym ist. Bitcoin Wallet synchronisieren – Die Synchronisation. Mit ... Bitcoin Wallets. Neben dem offiziellen Bitcoin Wallet QT gibt es noch mehrere Alternativen, die Sie nutzen können. Nachteil des offiziellen Wallet ist es, dass es auch gesamte Blockchain nimmt, der sogar viele GB hat. Darüber hinaus ist es sehr oft notwendig, die privaten Schlüssel zu sichern. Es gibt viele günstige Alternativen: Wallet synchronization. Bitcoin, Dash, Litecoin and every Altcoins has its own core wallet. While the looks of each and every wallet may vary slightly its functionalities remain the same. Whenever you open your QT wallet the first thing your wallet does is; it starts scanning all the recent blocks on the blockchain and tries to catch up with the network. Whether your wallet is a fresh install ... Aus technischer Sicht ist Synchronisation ein Prozess, bei dem alle bisherigen Bitcoin-Transaktionen heruntergeladen und geprüft werden. Um den Kontostand zu berechnen und Transaktionen durchzuführen, müssen manche Bitcoin-Clients alle bisherigen Transaktionen kennen. Dieser Schritt kann sehr ressourcenintensiv sein und benötigt ausreichend Bandbreite sowie Festplattenspeicher, um die ...

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How to Sync your Bitconnect QT wallet NEW updated

When you are experiencing a slow download and synchronisation of the bitcoin blockchain this little tutorial might be of help. We will disable power nap feature for our system to stop macOS from ... Just to show how Bitcoin Core Wallet after done sync 100% to learn how to install just click this link i give thanks... Getting your Private Keys from the Bitcoin Core wallet - Duration: 5:11. Bitcoin Daytrader 40,823 views. 5:11 . How To Instantly Synchronise Your Bytecoin Wallet - Duration: 2:19. Liudas Butkus ... Bitconnect Coin Community member teaches users how to set up and sync a new BCC wallet. Welcome back Crypto Friends, it’s been quite some time since I made a video. I want to talk about a couple ... Guide how to set up Bitcoin wallet on multiple devices. Multiple devices sync with one Bitcoin wallet. Bitcoin wallet - BlockChain Device: HP - PC and Android - Sony Xperia Tablet S Music: The ...