Arabi Australia Brasil Canada Deutschland España France Greece India Italia Japan Korea Maghreb México Québec South Africa United Kingdom United States Big week in blockchain tech.Simultaneous to our coverage that Swiss-based banking giant UBS appears to be building a smart bonds platform using Ethereum technology, it was revealed that Bank of America Corp, HSBC, and R3 have succeeded in developing a way to significantly reduce international trade costs.R3, R3CEV LLC formally, is a blockchain technology company.It leads a consortium of 45 major member organizations in R&D and implementation of blockchain tech.Several months ago, R3 released an in-depth report evaluating how the Ethereum blockchain could be integrated by large banks to reduce friction and costs.This week it will probably become obvious that quite a few people read that report, and were intrigued.As Reuters reported yesterday: "An HSBC and Bank of America Merrill Lynch venture and financial technology firm R3 said separately on Wednesday that they had created ways of using blockchain technology to simplify trade finance processes.

The two banks said they had joined with the Infocomm Development Authority of Singapore to emulate a letter of credit (LOC) transaction.Letters of credit are one of the most widely used ways to reduce risk between importers and exporters, helping guarantee more than $2 trillion worth of transactions, but the process creates a large paper trail and is time consuming."Credit, of course, is one of the most fundamental aspects of finance - it underpins much of how humans interact with money.If blockchain can bring greater speed and autonomy to that process, it could be a big deal.But speaking of speed... ETHEREUM'S "RAIDEN NETWORK" EMERGES The Raiden Network has many Ethereum watchers excited this week as well, bank news aside.Raiden's system will allow for ultra-fast asset transfers within Ethereum.The system "scales linearly with the number of participants (1,000,000+ transfers per second possible)" according to its web site.International Business Times' Ian Allison reported on the breakthrough in greater detail, which takes a page from Bitcoin's Lightning Network: Ethereum's version of Lightning, called Raiden, just finished its first proof of concept which involved sending tokens from a Raiden client in Copenhagen to one in Mumbai mediated by a node in Florianopolis.

The opening, closing, and settlement of channels took place on the Ethereum testnet, while the actual transfers happened off-chain.Heiko Hees, CEO of brainbot technologies and creator of Raiden, contests that Ethereum is better suited to Lightning-like payment channels than Bitcoin.Bitcoin, the world's largest cryptocurrency by market capitalization, is valued at US $9.43 billion while secondplace cryptocurrency Ether is collectively valued at about US $981 million.okpay and bitcoinThe Ethereum network is the most well known smart contracts platform, and uses the Ether token as fuel across its network.bitcoin in austin texasNew to the smart contract revolution?land of bitcoin island gamePopular crypto academic Nick Szabo gave a great talk at last year's Ethereum developer conference, explaining in simple terms how cryptocurrency and smart contracts can move markets forward: Disclosure: At time of publication, I hold some bitcoin, ether, gold, and U.S.bitcoin garden forum

dollars in my long term portfolio.From Our Partners Presented by LendingTree_ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 12 I have seen other posts in reddit where users experienced slow sync times.I am using windows 10 and version 3.7 (I saw on gitter that other users on windows 10 had trouble with version 3.8 crashing).bitcoin giao dichMy download speed is 4.19 MBS.ethereum speedI have adjusted clock to (time.nist.gov).I am still not able to sync and it has been hours, probably at least 10 and I am only halfway through.Also I notice that when I close and reopen, only about a third of the time am I offered the option to "skip search for peers".Lastly, I tried to open an account when not in sync.I was able to enter and confirm password, however no new account showed.

Is it a problem with Windows ?Is it a problem with network speed?mist synchronization up vote down vote I am using Windows 10, Mist Wallet 0.7.2 which includes geth v1.3.6, a non-SSD hard drive and ethernet connection to 16Mbs modem.I had incredibly slow syncing of the blockchain, even with 25 peers and was actually having to to quit and restart Mist just to download another few blocks.I had installed the Mist Wallet for Win64 from here, which also includes a CLI called geth.apparently x32 editions don't contain geth?)I followed numerous different recommendations, however none worked until I deleted the blockchain data using geth and kicked the whole process off again.Rather than using the Mist sync process, I removed the chaindata and then ran geth --fast: Opened the cmd prompt Navigated to the directory containing geth.exe and opened it Copied the file path from the bar Explorer Typed cd path/to/geth (replace path/to/geth with what you copied) and hit enter.

Typed geth removedb and hit enter.Once the blockchain was removed, I ran geth --fast This above is also described here.The download has now got to block 500,000 in 30 minutes which had previously taken 3 days!If you are on a Mac, you would do this... Right click on the ethereum-wallet.app and select 'show package contents' Open 'contents', then 'frameworks', then 'node', then 'geth' and voila.Then you should right click on geth and select 'show info'.Copy the location marked 'Where:'.Open Terminal and type 'cd ` Then type: ./geth --fast Other recommended changes to Windows I had performed were: Ensuring my PC clock time was synchronised with internet time (it was accurate) Manually setting the Windows page size as per: http://www.tomshardware.co.uk/forum/id-2813275/disk-usage-100.html Disabled Superfetch Specifically opened the Ethereum ports for TCP 30303 and UDP 30301 on my router as described here: Which TCP and UDP ports are required to run an Ethereum client?

Whether any of these contributed to it being much faster after the geth removedb I'm not sure, but each of those may well help you.The complete download of 1,500,000 blocks finished after about 10 hours, so the blocks definitely appear to take longer to download the greater the block number, due to the increased number of transactions contained in each block.up vote down vote Use --fast and don't forget --cache with Geth Everyone mentions --fast but you probably also need --cache=1024 (and --jitvm may also help).Without it, you are running with the default which is --cache=16.--fast is important to help sync past computationally intensive blocks.If you are starting from the beginning, use: geth --fast --cache=1024 If you already have some of the blockchain, use: geth --cache=1024.If it's taking too long, you may be in the process of syncing the computationally intensive blocks and deleting the blockchain with geth removedb and restarting the fast sync will be faster.

Depending on your RAM, you can also try with higher values, like --cache=2048.Source If you are using the geth client, there are some things you can do to speed up the time it takes to download the Ethereum blockchain.If you choose to use the --fast flag to perform an Ethereum fast sync, you will not retain past transaction data.Note You cannot use this flag after performing all or part of a normal sync operation, meaning you should not have any portion of the Ethereum blockchain downloaded before using this command.See this Ethereum Stack.Exchange answer for more information.Below are some flags to use when you want to sync your client more quickly.--fast This flag enables fast syncing through state downloads rather than downloading the full block data.This will also reduce the size of your blockchain dramatically.NOTE: --fast can only be run if you are syncing your blockchain from scratch and only the first time you download the blockchain for security reasons.

See this Reddit post for more information.--cache=1024 Megabytes of memory allocated to internal caching (min 16MB / database forced).Default is 16MB, so increasing this to 256, 512, 1024 (1GB), or 2048 (2GB) depending on how much RAM your computer has should make a difference.--jitvm This flag enables the JIT VM.up vote 9 down vote Geth is a CLI Ethereum client that helps the Mist Wallet application connect to the Ethereum network (you also have the option to use the C++ client, but Mist defaults to using Geth currently).If loading Mist (or Geth) is taking a long time to download/load the blockchain, try this: Download geth Run geth with the --fast option.Example: geth --fast After geth has finished syncing the blockchain in the console/terminal window, open your Mist Wallet application if you are using it.It should load with the latest blockchain data.The "Ethereum Fast Syncing" option is very new and there are still some bugs pre-homestead.

However, if you're able to find a node that is running the latest Ethereum client version, it should be able to perform a fast sync with you, saving download time and hard drive space.More about fast sync in Ethereum: Post on Reddit with details.up vote 4 down vote Running geth.exe instead of downloading the blockchain with mist is working for me.Its in the resources/node/geth folder of mist.up vote 4 down vote I am running Windows 10 on a slow Core i5 1.7GHz w/ 8GB.If you have part of the blockchain downloaded already, you can't use --fast.The major thing that sped things up for me was stopping Superfetch in the task manager.It is under one of the Service Hosts.It was fighting geth for hard disk resources.I also stopped other heavy processes (Dropbox, OneDrive, Skype, etc.).It seemed that my computer was processing blocks so slowly that my P2P connections on the network would drop me, so syncing would stop while geth looked for new connections.Also, eth<> is correct.

uping your cache helps the speed a bit.It speed things up by about 50%.Anyways, I'm now downloading at a pace that will update me to the current block (1,571,255) in around 10 hours.up vote 4 down vote Thank you so much i had the same Problem with Sync.I have changed the Clock Settings to time.nist.gov and now i have made the Commands from you.Opened the cmd prompt Navigated to the directory containing geth.exe and opened it Copied the file path from the bar Explorer Typed cd path/to/geth (replace path/to/geth with what you copied) and hit enter.Once the blockchain was removed, I ran geth --fast And now it works great only 30 minutes for Sync :) Thanks up vote 2 down vote Mist also have geth.exe , eth.exe in it's packages.in CLI geth alone also slow compared than before DAOHUB.I estimates that there are so many new geth nodes , compared existing nodes.And If you're a little bit more fast and stable synchronization then just execute geth.exe theirs no overhead on MIST ux.

up vote 0 down vote For me the disabling the "Superfetch" service in windows task manager ( open services under the services tab) was enough , it seemed like windows 7/8/8.1 and 10 use to much ram space for cache data ( although the OS is smart enough to remove all the unnecessary cache when needed [like when you open big programms] ) , but those wallet software aren't that evolved much yet to solve this problem by itself.The Superfetch service in windows is existing for userlogin programms and datas in the RAM where the user has already used those once or uses frequently.Nodes before disabling -> 1-9 now -> 1-28 Blockchains downloaded within 2 hours protected by 5chdn Thank you for your interest in this question.Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).Would you like to answer one of these unanswered questions instead?Browse other questions tagged mist synchronization or ask your own question.