How does a share help in the discovery of a new block?


In order to find a Block, one needs to perform A LOT of tries - about 2^32 * the current difficulty. That number is so huge that solo miners rarely would be able to solve a block. A share on the other hand is a block of difficulty 1, which is at the moment a few million times easier to find.

Finding a share does not help in finding a block in any way - each hash is independent of all others. However, a share IS a proof of work done by the miner - they put in the effort to help the pool find the block. Once one miner finds a solution to the block problem, the pool earns money and can pay its miners - logically paying everyone for each share submitted. Those shares did not solve the block, but they were a proof that a miner was trying to solve a block. The more shares, the more work needed to be put.

Without shares, everyone would be essentially solo mining - there would be no way to prove that one put in the work, so there would be no reason to be paying the miners -...

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A stale share occurs when you find a share and submit it to the mining pool after the pool has already moved on to the next block. The percentage of stale shares should be very low if everything's working correct, around 2 out of 1,000 shares or so.

Several factors affect the stale share rate. The three most important are long polling, pool load, and miner-to-pool latency.

Any shares found based on old work units after the pool controller receives a new block will be stale. Long polling is a technique that allows the pool to notify all of its miners when there's a change in the block chain so they can immediately request new work units. If your pool or mining software doesn't support long polling, you will finish out the old work units, generating stale shares.

When the long polling notification goes out, all miners that support long polling request new work units at about the same time. This generates a massive burst of load as the pool has to manages lots of...

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Yes, a share hash is a hash of a bitcoin block. Some of them are above the bitcoin network difficulty which means the block is valid. Most are not, and can only be used to show that you are mining (and at what rate).

The data being hashed is the block header. The block header contains the merkle root which is created from the transactions. The transactions are not part of the block header. A bitcoin block is the header plus the transactions.

With the GBT (getblocktemplate) mining protocol you do get all the data, including transactions. This could be used to try and detect if the pool is doing something bad. It could also be used as you say to let the user see the transactions he or she is including in blocks. With GBT there is even the possibility for the miner to remove or add transactions, if supported by the pool. Most of this is still not implemented by miners and pools.

Stratum had an extension to allow you to fetch the transactions for the block you are...

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Recently Microsoft announced that PowerShell has been open sourced, and made generally available on Linux and Mac Os X. It is currently (04.11.2016) in alpha version available on github. I happen to have a Mac Book Pro available at home. And was pretty curious of what powershell mac os x would actually really be like. In this blog post I will walk you through the very beginning of using powershell Mac Os x. How does PowerShell Mac os X works? How to install powershell mac os x? what works currently on Powershell Mac Os x? What doesn’t work on Powershell Mac Os X? Where do we download powershell mac os x? etc… All of these first questions you have to start with powershell on Mac os x will be answered in this blog post.

PowerShell, became my bridge to discovering new platforms

I have to admit, that I am a SUPER Mac Noob. This means, that I have barely touched a Mac in my life. I have been a Windows Focused person for as long as I can remember. The good thing...

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Most of the news about minority languages is that they’re endangered or dying off, and the only new languages we hear about are those created for Hollywood sci-fi blockbusters. But sometimes, linguists find a previously unrecorded language — and when they do, it’s a sign language.

The reasons for this discovery aren’t mysterious. “Because of the sporadic incidence of deafness, the generation-to-generation transmission of language is disrupted,” says Richard Meier, a linguist and sign language expert at the University of Texas at Austin. “Deafness may appear in communities that had not previously had it. Because of their hearing loss, the deaf are likely unable to acquire the local spoken language. But the community may lack an established sign language.” The result? People create languages.

On her first fieldwork trip in 2010, linguist Lynn Hou, who is deaf, and her colleague at the University of Texas at Austin, Hilaria Cruz, from the southern Mexican state of...

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Here is a super simple discovery example. It does not use a config file, it is all c# code, but you can probably port the concepts to a config file.

share this interface between host and client program (copy to each program for now)

[ServiceContract] public interface IWcfPingTest { [OperationContract] string Ping(); }

put this code in the host program

public class WcfPingTest : IWcfPingTest { public const string magicString = "djeut73bch58sb4"; // this is random, just to see if you get the right result public string Ping() {return magicString;} } public void WcfTestHost_Open() { string hostname = System.Environment.MachineName; var baseAddress = new UriBuilder("http", hostname, 7400, "WcfPing"); var h = new ServiceHost(typeof(WcfPingTest), baseAddress.Uri); // enable processing of discovery messages. use UdpDiscoveryEndpoint to enable listening. use EndpointDiscoveryBehavior for fine control. h.Description.Behaviors.Add(new ServiceDiscoveryBehavior()); ...
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If you’re trying to use your Google Account and see a message saying your browser's cookie functionality is turned off, it’s likely your browser's cookies are disabled. You’ll need to turn cookies on to use your Google Account.

How to turn on cookies Google Chrome On your browser toolbar, select More . Select Settings. Near the bottom of the page, select Show advanced settings. In the "Privacy" section, select Content settings. Select Allow local data to be set (recommended). Select Done.

Learn more about managing your cookies settings in Google Chrome, like how to block third-party cookies.

Other browsers

Please see your browser's help resources.

How to turn off cookies Google Chrome On your browser toolbar, select More . Select Settings. Near the bottom of the page, select Show advanced settings. In the "Privacy" section, select Content settings. Select Block sites from setting any data. Select Done. Other browsers

Please see your...

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I get a particular thrill from finding little-known restaurants that serve amazing food. My greatest hits list includes elk tacos at a highway diner, cinnamon rolls at a downtown hole-in-the-wall, and – perhaps my greatest discovery of all – barbecue from a trailer in a parking lot. (Seriously, it’s good barbecue!)

The discovery process for great content has a similar thrill. How great does it feel to share a bit of awesomeness that few others have found?

Without a doubt, sharing great finds on Twitter, Facebook, LinkedIn and other social networks is a smart way to with your followers. Did you know 25 percent of Tweets contain links and 56 percent of retweets contain them?

People love a good content share. And in order to give the people what they want, sometimes you’ve got to dig a little deeper. Here are 17 unexpected places to look:

1. Email newsletters

We look at the inbox every day, but how often do we search it for great content?...

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etwork Discovery is also commonly known as UPnP (Universal Plug and Play). UPnP is a peer-to-peer network architecture standard that allows intelligent appliances, wireless devices, personal computers (PC), peripherals to connect to a network and to communicate with each other that located in close proximity. UPnP makes life of users easier by supporting zero-configuration, “invisible” networking, and automatic discovery for UPnP devices which in turn can dynamically join a network, obtain an IP address, convey device capabilities, and learn about the presence and capabilities of other UPnP devices.

In Windows, UPnP is named as Network Discovery since Windows Vista. Network Discovery allows your computer to see other network computers and devices and allows people on other network computers to see your computer, which makes it easier to share files and printers. Network Discovery is disabled by default for Public network location (as Public or Guest network profile) in all...

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Messy With Art, 10:00am

Messy With Art, 10:00am

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Eight Nights, Eight Lights: Hanukkah Calendar , 11:00am

Design a banner with pockets to store your Hanukkah treasures.

* Due to limited space, this program requires you to sign-up for entry. Sign-up in the lobby one hour before the event.

Movement & Circle Time, 11:00am

Sing, move your body and use your listening ears to hear special stories.

Ball Pool Swap and Drop, 11:30am

Collect all the balls from the Baby Steps ball pool for our daily Ball Pool Drop & Swap. Get ready to count down as we let loose new balls into the pool!

Eight Nights, Eight Lights: Hanukkah Calendar , 12:00pm

Design a banner with pockets to store your Hanukkah treasures.

* Due to limited space, this program requires you to sign-up for entry. Sign-up in the lobby one hour...

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