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Ethereum Blockchain Location

How Can I Find My `chaindata` Folder?

How Can I Find My `chaindata` Folder?

geth (used in the Ethereum Wallet) saves its internal states for the main network in the chaindata directory. You can find it in the: For OSX there are two library folders. You will need to enable hidden folders to fine the Library referenced above which is found in HD/Users/{your name}/Library and is a hidden folder Albert Renshaw Dec 3 at 4:42 To view hidden folders run this in terminal defaults write com.apple.finder AppleShowAllFiles YES then relaunch finder (option+control click finder icon and select relaunch) Albert Renshaw Dec 3 at 4:43 When you first launch Ethereum-Wallet it will show the splash screen. Shortly after the splash screen will show a LAUNCH APPLICTION button. Click this button to see the full UI. If you are fully synced already it may skip straight to the full UI Once that is open go to the Accounts menu > Backup sub-menu > Accounts menu-item. The UI for your file explorer will differ by OS, but you should see a folder that contains folders like this, in particular it should contain a chaindata folder: Side-note: While you are here you should backup the keystore folder. Details about this can be found at How do I backup my ether accounts? . Be sure to save your passwords as well! Continue reading >>

Ethereum Data Directory Path Hardwired To C:\users\user\appdata\roaming\ethereum #2828

Ethereum Data Directory Path Hardwired To C:\users\user\appdata\roaming\ethereum #2828

Geth should respect the correct OS roaming path and not default to the C: drive. Ethereum blockchain data is being written to C:\Users\user\AppData\Roaming\Ethereum even when the OS location had moved. The blockchain data was taking a lot of room on my C: drive so I changed the location of the path C:\Users\user\AppData\Roaming (which contains the Ethereum data folder for the blockchain data) to D:\Roaming. When I start the wallet there is a error message that it cannot find the node and so it begins to download the whole blockchain again to the path C:\Users\user\AppData\Roaming\Ethereum As the blockchain will get bigger and bigger a lot of people will want to move the data folder to a bigger drive as the C drive is to small and has all the OS programs and data. Continue reading >>

How To Change The Blockchain Dir? #572

How To Change The Blockchain Dir? #572

Actually in Windows there's JUNCTION and, just like Linux, you can create a link of the existing data folder to another one (even in another drive) as you see fit. You can download junction from microsoft technet here: . No installation required. So, in this case, you just need to stop geth, move the data folder to another drive/folder/path and create a junction from the original path to the new one. Move the contents of "%USERPROFILE%\AppData\Roaming\Etherium\Geth" to "G:\Data\Geth" and wait for it to finish. Then execute (on a cmd prompt): cd "%USERPROFILE%\AppData\Roaming\Etherium" If you list the contents (dir) it will show something like: 05/11/2017 20:52 Geth [??\G:\Data\geth] Continue reading >>

Database - What Is The Physical Location Of Blockchain? - Stack Overflow

Database - What Is The Physical Location Of Blockchain? - Stack Overflow

What is the physical location of Blockchain? Hello everyone i am new in this technology and i am confused please clear my few doubts. Thanks in advance. Blockchain consist of Blocks but where these blocks are stored, i mean what is the physical location of Blocks. As per my theoretical knowledge blockchain exist in network but in which network, do we need to create our own network or is there any third party those who provide network for our application. Suppose i have to develop land registry application i need some space somewhere where i can store my blocks. if i store all block in my system itself then how it will behave like a decentralized. Does Ethereum stored our blocks in his network? Blockchain itself is a database but how we can manage the data. Does BigchainDB stored our blocks or blockchain in his database? Blockchain is shared among all the p2p network hosting it. So basically blockchain is stored in many simple HDD all around the world. If you want to create a totally new blockchain, you create your own network. If you want, for example, to use Ethereum network to run your token, then you'll use Ethereum network (which has been created for Ethereum at the first place) That's what the blockchain and it's protocol do. Store datas in multiple places and handle the integrity and safety of the datas. You need to have multiple agents in your network to be decentralized. You alone is centralized. Yes, or more exactly, Ethereum users store datas in their storages for the Ethereum network You can imagine different form of blockchain, but speaking about the first one, Bitcoin, when the p2p network is launched and used, you can't manage datas by yourself. The network will handle it, and the only way you can manage datas is by having more than 50% of the mining powe Continue reading >>

How To Buy Ethereum - Localcoinatm

How To Buy Ethereum - Localcoinatm

LocalCoinATM makes exchanging cash for Ethereum easy. Here's a few instructions to help you buy and store Ethereum safely. We recommend the following easy-to-use wallets. You'll need to take this wallet (or a printed QR code) with you, to the machine. Caution: Make sure that the wallet used supports Ethereum. If the wallet is not compatible, you will lose your transaction amount. Tap the machine's touchscreen, then read the on-screen prompt. In your wallet, find your address' QR code Hold it up to the machine's camera; the machine will scan it. This tells the machine where to send your Litecoin once you've confirmed your purchase. After scanning the QR code, insert your CAD or USD* bill(s). * Only our Niagara location accepts USD bills Confirm the amount on the screen to complete your purchase. Please note that there will be a service fee, which varies based on the Bitcoin market. Once you've confirmed your purchase, your Ethereum will be sent to the address you provided*. Transactions are usually instantaneous, but may take anywhere between 1030 minutes, or even 12 hours in rare cases**. Transactions at our ATMs are 100% anonymous. * If you are going to send funds to another person, we recommended sending it to your own wallet firstespecially if you do not know them personally. ** It is recommended that you wait for at least one confirmation on the Blockchain before spending or sending your purchased funds. Continue reading >>

The Ethereum-blockchain Size Will Not Exceed 1tb Anytime Soon.

The Ethereum-blockchain Size Will Not Exceed 1tb Anytime Soon.

The Ethereum-blockchain size will not exceed 1TB anytime soon. Before diving into this article, please read the two disclosures about my involvement (1,2) and the one on data accuracy (3) at the bottom of the article. At least once a month someone posts a chart on r/ethereum predicting the blockchain size of Ethereum will soon exceed 1 TB. I want to take that chance to clean up with some stories around the Ethereum-blockchain size in this article and try to explain why this chart is technically correct, but not the full picture. Let's have a look at this chart first. It shows the complete data directory size of an Ethereum node (red), Geth in this case, and a Bitcoin node (blue), probably Bitcoin-Core , plotted over time. While the Bitcoin graph is moving slightly upwards in a seemingly linear inclination, the Ethereum graph reminds the reader of an exponential growing slope. On Blocks, Block-History, States, and State-History Users accusing Ethereum of blockchain-bloat are not far off with their assumptions. But actually, not the chain is bloated but the Ethereum state. I want to examine some terminology from the Whitepaper before proceeding. Block. A bundle of transactions which, after proper execution, update the state. Each transaction-bundling block gets a number, has some difficulty, and contains the most recent state. State. The state is made up of all initialized Ethereum accounts. At the time of writing, there are around 12 million known accounts and contracts growing at a rate of roughly 100k new accounts per day . Block-History. A chain of all historical blocks, starting at the genesis block up to the latest best block, also known as the blockchain. State-History. The state of each historical block makes up the state history. I will get into the details on t Continue reading >>

Blockchain

Blockchain

We are on a mission to build a more open, accessible, and fair financial future, one piece of software at a time. Our technology is revolutionizing the financial services industry by empowering millions across the globe to authenticate and transact immediately and without costly intermediaries. We are on a mission to build a more open, accessible, and fair financial future, one piece of software at a time. Continue reading >>

How To Backup Your Ethereum Wallet And The Blockchain

How To Backup Your Ethereum Wallet And The Blockchain

All About BTC, LTC, ETH mining as well as other alternative crypto currencies How to Backup Your Ethereum Wallet and the Blockchain Just like with Bitcoins wallet.dat file that contains your wallet address and keys and that you need to backup for safety reasons, Ethereum also has a similar wallet file that you should have a spare copy of. With Ethereum the wallet file has a bit weird name and is not just called wallet.dat, but it has essentially the same purpose and the file works essentially the same way as the wallet.dat with Bitcoin and many other alternative crypto coins. Ethereums wallet file is stored in the data directory used by the client to store the blockchain and other files, the default locations for the datadir on different operating systems are listed below. Windows: %USERPROFILE%\AppData\Roaming\Ethereum To get the full path of the data directory on your specific system you can run the geth console and type admin.datadir and you will see a result like on the screenshot above with the full path. Note that the wallet file is not stored in the main datadir folder, but is instead placed in a separate folder under it called keystore. Inside that folder you should see a file with a long name starting with UTC--2015..., this is the wallet file you need to backup. Do note that aside from the wallet file itself you will also need to remember the password (or also back it up along the wallet) that you set when creating your account, without the password needed to unlock it the wallet file wont be of much use. If you are moving your Ethereum installation over to a different computer or want to have a copy on another system for solo mining for example, aside from a copy of the wallet file you may also want to make a copy of the blockchain, so that the geth client w Continue reading >>

Change Blockchain Directory To Second Hdd? : Ethereum

Change Blockchain Directory To Second Hdd? : Ethereum

Welcome to r/Ethereum , the front page of the Web 3. No inappropriate behavior. This includes, but is not limited to: personal attacks, threats of violence, gossip, slurs of any kind, posting people's private information. Keep price discussion and market talk, memes & exchanges to subreddits such as /r/ethtrader Keep plain ICO advertisements to subreddits such as r/ethinvestor . Keep mining discussion to subreddits such as /r/EtherMining . No creating multiple accounts to get around Reddit rules. English language only. Please provide accurate translations where appropriate. Posts and comments must be made from an account at least 10 days old with a minimum of 20 comment karma. Exceptions may be made on a discretionary basis. Continue reading >>

Foam - Ryan King, Ceo And Co-founder - Open-source Proof Of Location Protocol For The Ethereum Blockchain - Future Tech Podcast

Foam - Ryan King, Ceo And Co-founder - Open-source Proof Of Location Protocol For The Ethereum Blockchain - Future Tech Podcast

Get The Latest Future Tech News Delivered Right To Your Inbox In order to have a trustless system that is able to verify location for smart contracts, Foam is currently developing a spatial protocol that can run on the Ethereum blockchain. This system would give users the ability to verify real-time locations through the blockchain and would be useful in various use cases, including location-based gaming or loyalty rewards programs, supply chains, IOT devices, self-driving cars, mapping functions and applications, and more. Because GPS is easily spoofed, the ability to verify location in real-time adds important commercial value for its users. Despite this, Foam is committed to making their protocol open-source. They have two tracks of developmentthe first is the spatial index, which they hope to make available to the public by the end of the year, and the second is a pilot proof of concept protocol in order to set gateway nodes and incentivize adoption. Beyond the release of the spatial index, Foam hopes to release a new white paper and website by the end of the year, and begin a token sale in the beginning of 2018. For more information, visit www.foam.space. Continue reading >>

Ethereum Developers Conference (devcon3)

Ethereum Developers Conference (devcon3)

For those of you who have experienced Devcon in the past and are looking forward to this years event, it should be the best one to date! This year, we have dedicated convention center space that has been scaled up three times since the conference was first sold out in July. Due to successfully increasing the event capacity over the last three months, we were able to release passes to many if not most waitlisted requestors. Thanks to our amazing and resilient community and an abundance of enthusiasm, Devcon3 has two and a half times the number of attendees as last year. And the added Breakout Hall has enabled Devcon3 to include many additional presentations. The Foundation is pleased to continue to provide the main developers conference in the Ethereum space for a community that stands out for its shared vision and involvement in community-driven open source projects and beyond. This year, Devcon3 has reached out to more Ethereum community developers, students and university people than ever before. Additionally, the participant demographic is also the most international and globally diverse one to date. As a developers conference, Ethereum Foundation's Devcon event and agenda is designed to help inform, educate and address interests of the Ethereum R&D community, including those who are learning about the technology and projects supported by the Foundation as well as ones undertaken in the greater development community. While the Devcon program is technical by nature, all who wish to attend are welcome! Be sure to review the Devcon3 terms and conditions . Tickets for Devcon3 were completely sold out on July 10. In order to accommodate as much of the overflow as possible, we scaled up the event three times since that time. Ethereum Foundation Devcon3 event dates: Novemb Continue reading >>

Crypto-spatial Coordinates, Proof Of Location & Spatialindex

Crypto-spatial Coordinates, Proof Of Location & Spatialindex

Crypto-spatial Coordinates, Proof of Location & Spatialindex Ryan King, FOAM CEO at Ethereum Meetup Philadelphia We greatly enjoyed the Philadelphia Ethereum Meetup , check out the video of Ryan John King presenting FOAM below. To give a short overview, below follow the the three parts of FOAM as explained in the video. As described in our previous blog post Crypto-Spatial Coordinates the open location standard on Ethereum we are developing an open location standard for the Ethereum blockchain. Our Proof of Location Protocol will provide consensus on whether an event or agent is verifiably at a certain point in time and space, without GPS. The problems of geolocation and time synchronicity have a lot in common. Proof of Location can be done with with Byzantine Fault Tolerant (BFT) Time Synchronization protocols run on specialized devices with radio transmitters. As the financial incentive of mining in Proof of Work created the worlds biggest supercomputer , we see the possibility to use financial incentives in our soon to be released Proof of Location Protocol to create wide-spanning networks of beacons and IoT devices for unspoofable location validation. Built in part on our previously released Purescript web3 library , the Spatial Index is a visual explorer for geospatial smart contracts on the blockchain. We like to think of it as a cross between a Bloomberg trading terminal and Google Maps; spatialized financial data. As an open-source web-app it will be used to a) allow users to interact with our protocol visually and b) as cornerstone in the large variety of decentralized applications that can be built on top of our protocols. Check the video presentation above for a demo of the Spatial Index application! We will be releasing more information soon, including our Continue reading >>

Salt Lending - Bitcoin, Ethereum Blockchain-backed Loans

Salt Lending - Bitcoin, Ethereum Blockchain-backed Loans

This depiction is a summary of the processes for obtaining a loan or making an investment. Terms and Conditions Apply. Loans are not made by SALT Lending. SALT Lending is a Platform. All loans are subject to review and approval. For example, a one year $10,000 loan with a rate of 10.00% APR would have 12 scheduled monthly payments of $880. Annual percentage rates (APRs) through SALT vary. Eligibility is not guaranteed, and requires that a sufficient pool of liquidity is available to fulfill your request and that you meet other conditions. Individual US citizen borrowers must be a permanent resident and at least 18 years old. Valid bank account and social security number/FEIN are required. Refer to The Membership Agreement and The Subscriber Agreement for details and all terms and conditions. Borrowing against collateral entails risk and may not be appropriate for your needs. Salt Lending does not provide legal or tax advice. Please consult your advisor. SALT Lendings notes are issued pursuant to a Prospectus. You should review the risks and uncertainties described in the Prospectus related to your possible investment in the notes. Not FDIC-insured; investments may lose value; no SALT or bank guarantee. SALT takes your privacy seriously. Please see our Privacy Policy for more details. Continue reading >>

Directory Of Alternative Cryptoeconomic Networks And Why Theymatter

Directory Of Alternative Cryptoeconomic Networks And Why Theymatter

Directory Of Alternative Cryptoeconomic Networks And Why TheyMatter There have been concerns about Ethereums scalability for a long time and even the most ardent believers must accept the fact that at current levels there is no way Ethereum could handle the throughput necessary for a mainstream consumer application. This has been further highlighted by the moderate success of CryptoKitties , which caused massive congestion in the network. Toomany.kitties... Image from Believers would of course point to the various proposals that have been put forth as possible avenues to scale Ethereum. Payment channels like Raiden are cool and will be very good for certain use-cases where both transacting parties are known, such as in remittances, but will not help the broader consumer use-case. Sharding , Plasma , Probabilistic Micropayments and others are all still theoretical unknowns and each have limitations of their own. Now, I want to believe that the incredibly inventive crypto-community will solve this problem, but I fear that the issue isnt that we havent come up with a solution, its the blockchain itself. The requirement for global consensus essentially guarantees that the system wont scale without taking transactions off-chain. Off-chain scalability is of course possible, but seemingly defeats the purpose of decentralising things in the first place. Blockchains dont scale well because there needs to be global consensus on the order and outcome of all transfers. Every participant needs to learn about all updates to the shared ledger. Hardware and bandwidth constraints set a limit on the number of updates per second that can be shared in a decentralised network. Regardless of the issues mentioned above, its clear that blockchains are great for certain use-cases, which dont r Continue reading >>

How Ethereum Works - Coindesk

How Ethereum Works - Coindesk

CoinDesk Launches 2017 Year in Review Opinion and Analysis Series Now that we've covered what ethereum is, let's dive deeper into how the platform functions under the hood. Consider the online notebook application described in " What is Ethereum? " Using ethereum, the appdoesn't require one entityto store and control its data. To accomplish this, ethereum borrows heavily from bitcoin's protocol and its blockchain design, but tweaks it to support applications beyond money. Ethereum aims to abstract away bitcoin's design, however, so that developers can create applications or agreements that have additional steps, new rules of ownership, alternative transaction formats or different ways to transfer state. The goal of ethereum's 'Turing-complete' programming language is to allow developers to write more programs in which blockchain transactions could govern and automate specific outcomes. This flexibility is perhaps ethereum's primary innovation, as explained in the guide " How Ethereum Smart Contracts Work ". The structure of the ethereum blockchain is very similar to bitcoin's, in that it is a shared record of the entire transaction history. Every node on the network stores a copy of this history. The big difference withethereum is that its nodes store the most recent state of each smart contract, in addition to all of the ether transactions. (This is much more complicated than described, but the text below should help you get your feet wet.) For each ethereum application, the network needs to keep track of the 'state', or the current information of all of these applications, including each user's balance, all the smart contract code and where it's all stored. Bitcoin uses unspent transaction outputs to track who has how muchbitcoin. While it sounds more complex, the id Continue reading >>

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