No, but you can use the bitcoin client on a disconnected machine to generate a new address, dump the private key, and then delete the wallet.dat file when you are done.

The blockchain.info payment buttons (http://blockchain.info/api/api_receive) are pretty sweet.  I am using them to accept donations on a free web app I run, but I ran into the fact that the buttons, as written, don't work in IE 8 and IE 9.  Now, in theory, I could have just decided to not care, but I hate to turn away the rare person who wants to give me a donation just because they might happen to be on an old crappy browser.

The issue appears to be that the pay-now-button.js code is making a cross domain ajax call using jQuery, but jQuery does not support CORS in Internet Explorer.

I fixed this for my website by using the jQuery plugin below.  Note, it works for IE8+ only, which is good enough for my app.  Also note, this only fixes the problem for web apps using SSL because IE refuses to do CORS to an SSL endpoint unless the host page is also SSL.

Plugin:  https://github.com/MoonScript/jQuery-ajaxTransport-XDomainRequest/blob/8754607e5f9ab73ccc37246f0c12fed14f85bd28/jQuery.XDomainRequest.js
SSL restriction: http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx

You might want to either recommend this plugin, or better yet change the pay-now-button.js code and API to support/use JSONP instead of CORS.

Will there still be something responding at http://us.ozco.in:3333 that will tell cgminer to switch to stratum?  Or do we need to change our miners to directly use stratum+tcp:// style URLs?

if you set the fee percentage to 1%, then 1% of shares (randomly) will be allocated to the address specified on the command line (with -a) instead of to the address passed in by the miner as the username.

As I mentioned in a previous post, http://p2pool.info is a web app that is hosted in the cloud, but it depends on bitcoind and p2pool servers running in the basement of my home.  That means when I have power or internet disruptions at home, the site stops being accurate.

I have been working on making the web app independent of my home's servers and I'm nearly done.  It now finds blocks exclusively by using the blockchain.info APIs instead of a bitcoind server in my house.  The last part of my work is to make it not depend on the p2pool server in my house either... 

There is an old thread here that lists public p2pool servers, but it is so old that I don't trust it.  Does anyone still run a public p2pool server that they intend to keep around?  Ideally, I'd like a list of 3+ of them so that p2pool.info wouldn't be dependent on any p2pool server.  All that p2pool.info uses the p2pool API for is to get the pool hashrate, user list, and payout list once every 5 minutes, so the traffic to your server would be very light and largely insignificant.

If you have a server that you'd be willing to let p2pool.info use, please let me know here or via PM.

Yeah, I have been following the developments and it sounds like soon, there will a patch to 0.8 that I'll install instead of downgrading.  Still, I advise not trusting p2pool.info for now.

I can't downgrade the bitcoind that p2pool.info gets information from quickly.  I may be able to do it in a day or two.  Until then, FYI, that p2pool.info may be confused or just plain wrong about blocks and orphans (and luck and round duration).

They work fine on my iPhone.  What problem are you having?

If someone else wants to develop it, I would be happy to host it on p2pool.info.

The easiest way to incorporate it into p2pool.info would be for it to be entirely client side (running in the browser, i.e. written in javascript).  Maybe using something like D3.js to draw the graphs.  As a reminder (it's posted somewhere else in this thread but hard to find), all of the data that p2pool.info has about blocks and round lengths, etc, are available in JSON from here:

http://p2pool.info/blocks?all=true

If someone does this, feel free to message me and I'll help get it on the site.  Or if someone wants to develop this and host it elsewhere, I'm also happy to link to it from p2pool.info so that people will find it more easily.  Just let me know what you prefer.

My post has nothing to do with the actual p2pool software (that forrestv develops).  I'm talking about the p2pool.info website that monitors the blockchain looking for blocks found by the p2pool software. 

Currently, it doesn't have fallback support.  While it is theoretically possible to add it, I'd rather just find a bitcoin instance to talk to that is in theory available 24/7 (baring unplanned downtime) vs something that comes and goes regularly.  If I can't find a 24/7 bitcoin to talk to, I'll suck it up and either keep running my own out of my house, or I'll do the work to point p2pool.info at blockchain.info.

Actually, it appears that they significantly raised their request limiting thresholds, so maybe this would work.  It would mean significantly rewriting some of the p2pool.info code since blockchain.info has a different set of APIs than bitcoind does and p2pool.info's code is built assuming bitcoind.  So if someone does happen to have a bitcoind server, that would still be the easiest for me to migrate to.  If not, I will add to my todo list to rewrite the code to use blockchain.info and we'll just hope blockchain.info doesn't ever go away

It already does pull some information from blockchain.info as a backup method, but it can't get everything from there, mostly because blockchain.info automatically blocks IP addresses that make a lot of requests (which has happened to p2pool.info multiple times).

I am expecting to get out of the bitcoin mining business sooner that later.  At the same time, I am still a fan of p2pool and would be happy to continue to maintain p2pool.info long after I am no longer personally mining.  However, as I shut down my home mining operation and all the servers running in my house that support that operation, I'd like to remove the dependency p2pool.info has on server(s) running inside my house, and I'm hoping someone in the p2pool community can help.

What p2pool.info needs is access to a bitcoind server's RPC interface.  For security reasons, ideally this would be a bitcoind instance that had an empty wallet that had never been used.

These are the RPCs that p2pool.info uses:

* getblockcount
* getdifficulty
* getblockhash
* getblock
* getrawtransaction

As for bitcoin version, it needs to be at least 0.7 as some of the RPCs above were new in 0.7.  If it happens to be running a version of 0.8 or the GIT tree with the new optimized storage structure, it needs to be running with the txindex=1 configuration setting because p2pool.info needs to be able to look at all generation transactions for all blocks.

I'm hoping that someone here is already running bitcoind in a datacenter somewhere and would be willing to let p2pool.info's web server connect to it to watch for p2pool blocks.  If you have a bitcoind server whose RPC interface is accessible over the internet and that you'd be willing to give me access to, please let me know.

Because...  it's luck?  You're looking for an explanation of why a random series of events occurred a certain way?

There are two different kinds of shares.  Your miner reports finding pseudo shares that are typically difficulty 1.  P2Pool's console output is reporting real shares that are difficulty in the hundreds.  Most pseudo shares are not real shares.  As someone else mentioned, the p2pool console output also includes a line that estimates how long (on average) it will take to find a real share based on your recent hashrate.  For the record, you are wasting time mining with only 21.4 MH/s or at least wasting electricity and money even if you are doing this just for fun.  It will take you an insane amount of time to find a share and your earnings will not outweigh the costs of your mining.


Alt-coin merged mining is not pooled.  When you find an entire block based on your own mining effort, that payment will appear in your alt coin client just as if you were solo mining that alt-coin.

FYI, I broke something with one of the servers that sit behind p2pool.info this weekend and the result was it was mis-reporting some blocks as orphaned (that weren't really orphaned).  It's being fixed now...

Since bad luck is almost often blamed on the pool being broken, I felt like it was important that someone question the proper functioning of the pool when we have good luck to keep things fair and balanced.  (in other words, it was sarcasm)