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July 28, 2017, 04:50:42 AM *
News: BIP91 seems stable: there's probably only slightly increased risk of confirmations disappearing. You should still prepare for Aug 1.
 
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401  Bitcoin / Mining software (miners) / Re: BFGMiner 5.0.0: GBT+Stratum, RPC, Mac/Linux/Win64, BlackArrow Prospero, KnC Nep. on: January 08, 2015, 07:09:51 PM
What would be the right grammar to add both, "stratum+tcp://stratum.nicehash.com/#xnsub#skipcbcheck"?
Yes
402  Bitcoin / Mining software (miners) / Re: BFGMiner 5.0.0: GBT+Stratum, RPC, Mac/Linux/Win64, BlackArrow Prospero, KnC Nep. on: January 04, 2015, 08:01:37 AM
How can you underclock the Monarch?
--set bitforce:_cmd1=F??

The first "?" is a frequency index, from 1 to F (hexadecimal).
Due to dynamic clocking in the MCU, there are no set frequency numbers.
The second "?" is either "X" for normal speed, or "D" for double speed.

You can also use --set bitforce:_cmd1=V?X to control voltage.
In this case, the "?" is one of:
  • 0 = 0.54 V
  • 1 = 0.55 V
  • 2 = 0.56 V
  • 3 = 0.58 V
  • 4 = 0.6 V
  • 5 = 0.62 V
  • 6 = 0.63 V
  • 7 = 0.643 V
  • 8 = 0.65 V
  • 9 = 0.662 V
  • A = 0.67 V
  • B = 0.68 V
  • C = 0.7 V
  • D = 0.72 V
  • E = 0.73 V
  • F = 0.75 V
403  Bitcoin / Mining software (miners) / Re: BFGMiner 5.0.0: GBT+Stratum, RPC, Mac/Linux/Win64, BlackArrow Prospero, KnC Nep. on: December 30, 2014, 03:05:51 PM
the problem is if BFG does not detect "shares" being accepted it throws up an idle error after 60 seconds.
No, it doesn't. That error means the device has stopped responding entirely.
404  Bitcoin / Development & Technical Discussion / Re: Bitnodes crawlers from 54.x.x.x (Amazon EC2 instances) on: December 30, 2014, 10:42:08 AM
I noticed those as well. They make me wonder whether Bitcoin Core should try to identify and drop useless peers when getting close to the connection limit.
I have all 8 connected to my testing node, what makes them useless?
They're worse than useless - maintaining a persistent connection to every node is a serious privacy issue.
Each node can also only have a limited number of connections, each of which consume resources.
405  Bitcoin / Development & Technical Discussion / Re: When are Sidechains going Live? And the Fork ... ? on: December 28, 2014, 11:56:32 PM
I think the world is not ready for sidechains yet, most people still didn't even understand bitcoin itself. No fork is currently proposed because there's a lot to do making bitcoin user-friendly and more used.

The reference client is not ment to be user friendly. Remember, this is a protocol, not a mom and pop application. It is being developed for developers in my point of view.
I am not talking about the reference client.
Or any client.
Or any piece of software.
I am talking about the whole idea of bitcoin and protocol, it needs to be improved/polish in ways that facilitate understanding and adoption, and sidechains are the opposite of that.
Most people will never understand the protocol. Nor do they need to, in order to use/adopt Bitcoin.
Sidechains are practically necessary to make most other changes.
406  Bitcoin / Development & Technical Discussion / Re: When are Sidechains going Live? And the Fork ... ? on: December 28, 2014, 07:07:03 PM
Once the SPV peg test sidechain is mature/stable/well-tested to everyone's satisfaction, at that point there can be a softfork to make it the "main" blockchain (at which point the federated peg becomes unnecessary and goes away).

Would you share some technical goals for that new main candidate?
As gmaxwell said, it's far too premature to be talking about any concrete plans for this.
407  Bitcoin / Mining software (miners) / Re: BFGMiner 5.0.0: GBT+Stratum, RPC, Mac/Linux/Win64, BlackArrow Prospero, KnC Nep. on: December 28, 2014, 07:05:21 PM
From README:
Quote
408  Economy / Service Announcements / Re: Backslash - the easiest way to send and receive Bitcoin on: December 27, 2014, 02:55:09 AM
Hmm, someone just sent me some µBTC via Backslash, but it wants me to sign up to get them... :/
How can I retrieve them without signing up? Wink
409  Economy / Service Announcements / Re: Backslash - the easiest way to send and receive Bitcoin on: December 27, 2014, 12:31:52 AM
My question is: you say you can send bitcoins to "anyone" - but does that include being able to send bitcoins to bitcoin users? That is, to an explicit bitcoin address and/or via the payment protocol, so the recipient isn't forced to sign up for Backslash?

If not, this is just an ewallet that forces others to use it rather than Bitcoin itself.

It does, I withdrew to my Bitcoin wallet. It was processed instantly.
That's withdrawing, not sending. I suppose you could withdraw to someone else's address, but some services have rules against that.

I sent to an address. I said withdrawing as it was effectively that. It detected it was a blockchain transfer and mentioned the 0.1mBTC transaction fee.
Ah, nice.
410  Bitcoin / Development & Technical Discussion / Re: When are Sidechains going Live? And the Fork ... ? on: December 27, 2014, 12:16:55 AM
I dont see sidechains working out. Its one of those projects which look exciting but have too many issues to work out to be worthwhile. There is also not enough incentive for devs to spend time on it.
That's why we started a company, so we can work full time on Bitcoin.
411  Economy / Service Announcements / Re: Backslash - the easiest way to send and receive Bitcoin on: December 27, 2014, 12:16:02 AM
My question is: you say you can send bitcoins to "anyone" - but does that include being able to send bitcoins to bitcoin users? That is, to an explicit bitcoin address and/or via the payment protocol, so the recipient isn't forced to sign up for Backslash?

If not, this is just an ewallet that forces others to use it rather than Bitcoin itself.

It does, I withdrew to my Bitcoin wallet. It was processed instantly.
That's withdrawing, not sending. I suppose you could withdraw to someone else's address, but some services have rules against that.
412  Economy / Service Announcements / Re: Backslash - the easiest way to send and receive Bitcoin on: December 26, 2014, 10:45:47 PM
Review of terms of service (I only skimmed, as I don't intend to sign up regardless; also, IANAL and TINLA): Better than ChangeTip (you retain your civil rights, and I don't see any prohibition of RE).

BTW, where do you have MSB licensing?
413  Economy / Service Announcements / Re: Backslash - the easiest way to send and receive Bitcoin on: December 26, 2014, 10:36:36 PM
My question is: you say you can send bitcoins to "anyone" - but does that include being able to send bitcoins to bitcoin users? That is, to an explicit bitcoin address and/or via the payment protocol, so the recipient isn't forced to sign up for Backslash?

If not, this is just an ewallet that forces others to use it rather than Bitcoin itself.
414  Bitcoin / Development & Technical Discussion / Re: When are Sidechains going Live? And the Fork ... ? on: December 26, 2014, 02:38:25 PM
Sidechains use a concept called a "peg" which is for moving the same token between different independent blockchains.
There are (at least?) 3 different ways to implement a peg:
  • SNARK peg: Uses a cryptographic proof of the other blockchain's rules being followed.
  • SPV peg: Uses a "lightweight" proof that a transaction was mined, relying on trust in the miner collective for the other blockchain.
  • Federated peg: Uses a set of trusted functionaries who all* must sign off on valid transactions between blockchains.

SNARK pegs and SPV pegs require a "softfork" (miner-only upgrade).
Federated pegs can be done with up to 15 functionaries using Bitcoin's multisig today.

The plan is to use SPV pegs for transfers out of the Bitcoin blockchain to a "SPV peg test sidechain", with return transactions (back to Bitcoin) using a federated peg.
Once the SPV peg test sidechain is mature/stable/well-tested to everyone's satisfaction, at that point there can be a softfork to make it the "main" blockchain (at which point the federated peg becomes unnecessary and goes away).

SNARK pegs are more complicated than SPV pegs, but can follow a similar process when the time comes.

* You can have fewer than all functionaries necessary to sign off, in case of lost keys or some going rogue.
415  Bitcoin / Pools / Re: [ANN] Stratum mining protocol - ASIC ready on: December 24, 2014, 09:06:28 PM
Could someone explain me what is the purpose of the mining.get_transactions stratum extension  ?

I am the developper of the stratum proxy https://github.com/Stratehm/stratum-proxy and someone reported me that the last BFGminer versions does not work with my proxy due to this extension. What should the pool respond if it does not support this extension ?

Thanks and merry Christmas  Smiley
A normal stratum error is fine.
{"id": whatever id the request has, "result": null, "error": (20, "Not supported", null)}
416  Bitcoin / Hardware / Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly on: December 22, 2014, 10:59:37 AM
Try BFGminer version 3.1.1,that one worked very well....way back when  Wink

http://luke.dashjr.org/programs/bitcoin/files/bfgminer/3.1.1/
Good idea. If 3.1.1 works, it makes troubleshooting 5.0 much easier Smiley
417  Bitcoin / Hardware / Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly on: December 22, 2014, 09:20:35 AM
I just bought this miner a few days ago from eBay for the sake of getting 30+ GH/s.



I hooked this thing up to a 200W PSU and an Ubuntu Server box.
I can't seem to get it past 8Gh/s. The only time I see above 8 is when I first boot up bfgminer and it warns me about the temperature.
I have plenty of cooling for this thing, so I dunno what's wrong.

If someone can help me on this issue, that would be great.
The hardware error rate looks really high - is it possible that it may be defective?
Maybe try cgminer (you'll have to mess up your drivers with Zadig if you use Windows... Sad) and see if it performs any better with that? (if it does, let me know and I'll see if I can help fix BFGMiner..)
418  Bitcoin / Mining software (miners) / Re: BFGMiner 5.0.0: GBT+Stratum, RPC, Mac/Linux/Win64, BlackArrow Prospero, KnC Nep. on: December 18, 2014, 07:36:41 PM
Hi all,I have a small question and I have not been able to find the answer in the read me files.

How do I use bfgminer to mine scrypt_n? I use the --scrypt but it just rejects every share submitted.

Sorry to be ignorant but I am not an experienced miner so any help is much appreciated. If it matters,I am on win7x64 and using GSD orbs and Gaw\Zuess miners.Thanks :-)
scrypt-n is not supported at this time.

Edit: Also, the only hardware I am aware of supporting scrypt-n is KnCMiner's Titan, NOT gridseed or zeusminer...
419  Bitcoin / Pools / Re: [ANN] Stratum mining protocol - ASIC ready on: December 18, 2014, 08:11:39 AM
Feature proposal: client report hashing speed

It would be very useful for stratum protocol to include a client message to report hashing speed. Today's miners (SHA256, Scrypt and others) vary a lot in terms of speed. For efficient initial vardiff handling, initial miners distribution in dependence of speed, etc. it wold be very useful for a pool to be informed by the client at what speed it is hashing. It would be nice if this would be implemented in the stratum protocol.
slush proposed a mining.get_hashrate for this a while ago... not sure if there's any specification/documentation of it though.
420  Bitcoin / Mining software (miners) / Re: BFGMiner 5.0.0: GBT+Stratum, RPC, Mac/Linux/Win64, BlackArrow Prospero, KnC Nep. on: December 16, 2014, 06:52:15 PM
Is it possible to point BFGMiner Proxy at another BFGMiner Proxy as to aggregate hashrate from multiple sources and redirect toward intended target?

I thought I had done this in the past using slush's proxy..  but it doesn't seem to want to work.

I get "ssm: Failed to subdivide upstream stratum notify!"

Anyone know?

thanks in advance!
You'll need to hack the code for one of them.

work2d.c:work2d_init assigns work2d_xnonce2sz = 2

If you assign this to 3 on your pool-side proxy, it will divide 4+ byte pool extranonce into 3 byte chunks, and then the normal BFGMiner can divide that into 2 byte chunks.
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