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1  Local / Le Bitcoin et la loi / Prononciation du CE sur l'imposition du btc on: April 26, 2018, 02:58:15 PM

Communiqué du Conseil d'Etat sur les modalités d'imposition du btc :

Avec le rapport détaillé en question :

Le bitcoin est ainsi reconnu comme "bien meuble", ce qui donne comme imposition : "Au-delà de 5.000 euros, la plus-value nette (après abattement) est taxée au taux de 19 %, auquel s'ajoutent les prélèvements sociaux à 15,5% en 2017 et 17,2% en 2018. "
2  Bitcoin / Bitcoin Discussion / Bitcoin & twitter on: August 26, 2017, 02:47:17 PM
Hi all,

I dont know if a similar discussion exist, bu I didn't find it.

My question is simple, what is/are your favorite twitter account ?

Everyday, new accounts are created and I have the bad reflex to follow all of them, because I'm affraid to miss information and quality isn't always present...

Is there any account that never disappointed you ?

3  Local / Hors-sujet / Mayweather vs Mcgregor on: August 26, 2017, 01:22:51 PM
Les paris sont ouverts, qui voyez-vous sortir vivant du ring ?  Grin

12 fois plus de paris sur Mcgregor, mais seulement 24% de l'argent parié avec une côte à 600 chez certains bookmakers... Les spécialistes ne lui donnent pas (beaucoup) de chance...

Pourtant, c'est plus que tout l'Irlandais que je souhaite voir gagner et vous ?

4  Bitcoin / Bitcoin Technical Support / Raspnode core upgrade on: June 13, 2017, 10:59:41 PM
I'm presently reindexing my blocks on Rapsnode now.

I recall having a download issue with less than the current core on a Win7 machine.

The Raspnode has Qt version 4.8.6 while the Win7 machine has 5.7.1.

I want to upgrade.  I'd do an apt-get update and upgrade but when I run dpkg -| grep bitcoin bitcoin-qt isn't listed.  Suggestions?

5  Bitcoin / Bitcoin Technical Support / Raspnode error and external drive on: June 11, 2017, 05:19:42 PM
Using a stock Canakit RPI3 and a 250 external USB hard drive, I started the installation according to the instructions on

I had a few difficulties setting up the RPI, schlepping it across the room to my TV as it is the only HDMI monitor.  I didn't want to use the REALVNC after seeing there's a fee of some sort so went with xtightvncserver.   But I had set up in a terminal as root and started the server.  When I connected using xvncviewer I was logged in to root's desktop.  I started the ~/bin parts installation there in the /root because when I open a terminal it opens in /root not /home/pi.  I'm hoping that when I finish the installation ssh in and kill the vncserver and restart it as pi then use xvncviewer and connect to pi's desktop and start bitcoin-qt on pi's desktop.

I ran into a  "g++: internal compiler error: Killed (program cc1plus)" error and worked from the solution in this post: but zeroing out the /etc/dphys-swapfile.

I'm now running the 'make -j2' command again.  When it's complete, and if it finishes successfully after 2½ hours, I'll try killing the vncserver via ssh and try starting it as pi. 

My question is: the external drive I'm going to use for the datadir is formatted as ext4.  Can I take that and using SyncToy 2.1, copy the blockchain from a Windows machine to the USB drive and when the Raspnode Bitcoin-QT starts will it have any difficulties with that blockchain?  Thanks.

6  Bitcoin / Hardware / Submerged liquid cooled miners on: May 25, 2017, 06:56:43 PM
I've have 2 C1's and they were difficult to maintain.  Still, they had liquid cooled heatsinks.

I like the idea of liquid cooled submerged electronics.  Last I looked the best cooling was with an expensive chemical.

I wonder if anyone makes a submerged liquid cooling system for any type bitcoin miner.  I'd like to submerge my 1TB antminer and power supplies and export the heat so as to be able to run through hot summers in the south here.  If Bitcoin goes as high as I'd like, I'd even throw a BFL device into a cooler.  Lots of electronics go bad when the place heats.  Capacitors leak and go bad then bang the gear is dead.

So, that effective chemical is prohibitively expensive.  Something less effective but useful if the coolant movement speed were to be increased to a large exchange.  Anything like that on the market?  Thanks.


7  Economy / Service Discussion / Kraken, MtGox on: March 22, 2017, 05:15:38 PM
Okay, so rereading the trustee's statement I see that if I want my payout in BTC I must have an account with Kraken.  Don't know how I missed that previously except for my ADD worsening in my decline.

I don't see a mechanism for informing the trustee of my new Kraken account.  Is one to assume something like an email address comparison will be conducted?  I'd think they'd want more than that.


Heck, I paid taxes on those bitcoins and never claimed loss on tax returns.
8  Bitcoin / Development & Technical Discussion / Bitcoin-QT wallet addresses on: March 19, 2017, 04:04:45 PM
Rebuilding for some time now a Bitcoin-QT I had let lapse.

I see transactions from 2015 into the wallet that indicate mined and show a particular address.

In the debug window I run 'getaccountaddress "" ' and get a single address.  I run 'getaddressesbyaccount "" ' and still get the one address and it isn't the address showing up corresponding to that in mined.

So, is the address used for mined btc in still capable of receiving payouts from any pool?
9  Bitcoin / Development & Technical Discussion / My Bitcoin-QT blockchain died. on: March 18, 2017, 04:41:05 AM
I've been running Bitcoin-QT at night for months trying to build a blockchain.  I changed to 24/7 days ago and was up to July of last year.  Cold nights I started with Slush again after 2 years.  Running an S5, with a return of 45% of electric cost which makes it cheaper than propane.  I had an old address on Slush and tried to change it.  I use Firefox. Repeatedly for days with email exchanges with Slush the problem, mash the cancel the address change button (because it wouldn't change) and it would return to a login screen that doesn't work.  A Slush rep told me it might be my browser.  I upgraded Firefox to 64-bit from 32.  I soon got a BSOD on the Win7 machine.  Now after reverting to 32-bit Firefox, Bitcoin-QT won't run.  Rescan fails and am reindexing now.  And the Slush problem is unresolved.

Was this BSOD intentional by Mozilla?  BSOD seems to kill a blockchain with its abrupt termination making reindexing necessary.  Do they feel killing a blockchain is politically correct?  No wonder there's such a backlog of confirmations and long delays.  Nobody in their right mind is going to run Bitcoin-QT and contribute to the chain upkeep.

What's the solution?

10  Bitcoin / Legal / MtGox, what's the situation? on: December 03, 2016, 04:22:15 AM
Can anyone tell me what's happening with MtGox? 

I filed and was told what my btc had been worth.  Does the present high value of bitcoin mean I'll get more eventually or is the amount I'll finally get to be a percentage of a past btc value of those missing bitcoins?



11  Bitcoin / Development & Technical Discussion / dedicated bitcoin-qt device on: October 29, 2016, 05:27:38 PM
I understand ASIC miners cannot be used to maintain a blockchain.  But, why aren't there any dedicated Bitcoin-QT devices to maintain a blockchain?

Is there some effective approach to maintaining a blockchain with Bitcoin-QT using a BBB or RPi?

12  Bitcoin / Bitcoin Technical Support / Unacceptable. Corruption: error in middle of record on: October 29, 2016, 01:48:24 PM
Bitcoin-QT.  My blockchain failed.  I started rebuilding roughly a month ago.  Win7.  The system seized once a week ago, I restarted and it continued reindexing no problem.  Last night I was within a few of days of sync and expected to be up to date today.  I woke up this morning to BSOD.  I rebooted and the blockchain has failed with "Corruption: error in middle of record" log notation.  There doesn't seem to be any obvious problem in the chainstate directory.

I had run two copies of the Bitcoin-QT for years.  Mining got unprofitable so I shut one down as I needed that machine for other work and still do.  Also I moved my bitcoins to an online wallet.  The one copy I kept running would wake up and run a few hours every night then shut down.  I felt it was good for Bitcoin to keep running a blockchain and who knows I might someday need to send a signed message.  Now this.  

Reindexing the blockchain almost made the machine unusuable, slowing it down and using resources.

It's as if the developers don't want common users to have a blockchain copy.


There really should be an option to delete x weeks of blocks.
13  Bitcoin / Hardware / Any way to use an Antminer or other miner to rebuild Bitcoin-QT blockchain? on: October 15, 2016, 11:28:54 PM
     I only keep a single blockchain current now and no real reason except in case it might be needed.  It broke recently.  I'm slowly rebuilding.  I have 6 or 8 antiminers here of various flavors that I keep just in case mining ever becomes profitable again at my electric cost.  It really would be great if there were some way I could speed up the Bitcoin-QT chain reindex with a miner somehow.


14  Bitcoin / Mining software (miners) / Accelerating SHA256 by 100x in Golang on ARM on: July 28, 2016, 01:42:43 PM
I just happened across this article and wonder if it has any bearing on existing bitcoin miners?

15  Economy / Exchanges / When will MtGox make partial restitution? on: July 02, 2016, 03:33:10 AM

Wondering when I'll get something.  They'll probably pay out something when they think Bitcoin is highest it will be in the near term - like sometime after payout halving.  Just a guess tho.
16  Economy / Economics / Could US Bitcoin survive a Trump presidency on: January 21, 2016, 11:16:51 PM
 Trump is riding a xenophobic wave.  Isolationism has support.

Bitcoin is an international currency (if I may use that term).

Banks value the fiat at their core.  Casinos, like insurance companies, are fiscal conservatives, essentially banks.  True one can gamble in any currency but banks have fiat at their core.

If Trump were to be elected, or any Conservative for that matter, how would it effect US Bitcoin?

17  Bitcoin / Mining speculation / What causes the cyclical nature of the hashrate? on: January 13, 2016, 06:48:00 PM
There's a periodicity to the hashrate (  I wonder what causes it.  The tides and moon?  Or has higher math found periods of greater block discovery that effectively have those in the know shutting down and restarting their miners to better profit?  The experimental method could prove it true or not if one had the math to calculate the points of inflection then just piggyback on their effect to the hashrate.  Two equal clusters of miners, half on the upper half of the cycle and half on the lower would show if one or the other turned more profit. If so I doubt they'd tell us.
18  Other / Off-topic / Phone home electric utility power meter accuracy? on: January 12, 2016, 06:03:12 PM
A few years ago my electric utility replaced the old power meter with a phone home communicating power meter that doesn't require the utility to stop at my home and read the meter.  I wonder about its accuracy.  I know I can shut down everything in the home and put a few hundred watt incandescent lamps as the only use and accurately measuring the current and voltage get a resistive load comparison to compare with the meter reading but my miners might run with a power factor of 0.70 according to my Kill-A-Watt.  Of course I could shut down everything and only run a single miner for some hours and get a comparison but shutting down everything isn't something I want to do. 

The utility station is maybe 20 miles away, provides power to the entire southeast, and at the time of construction was the largest natural gas power utility in the world.  Before the entity purchased the local utilities, and there is some not-too-distant hydroelectric, this rural property was seeing AC voltage levels at 126VAC-128VAC but since the new utility I see voltage pretty close to 120VAC. 

When it was 126-128VAC the old incandescent lamps would draw more current and use more power than at 120VAC but air conditioning and refrigerators ran more efficiently and this being the south and hot it made a difference.  Now with the power savings lamps the load is more refrigerator, freezer and air conditioning and the lower voltage has those running less efficiently.  Interestingly when the voltage was dropping from 126-128VAC, the power lines were falling to the ground mid-summer in Pennsylvania.  Apparently there had been a trickle up effect and I think they got caught with their voltage down.  The profit change probably saw them lowering their voltages which heated their lines and caused them to break.  But that's neither here nor there. 

Another aside - when a large company moved down here in '80's, they had electric problems and had their local utility out to the factory in the middle of the night not infrequently until the problems cleared up.  The company used a lot of electricity in the production of their product.  They knew their usage from having run the same machinery up north.  I don't know but suspect there was some kind of overcharging going on and when it was fixed the late night problems requiring the utility visits stopped.  But I don't know. 

So, the new power utility may be selling more power at 120VAC rather than the 126-128VAC but I would guess the power meters may be better than under the old system.  But I don't know.

I should mention that years before the change I had the old company shut off my yard light atop the power pole saving me, I forget, $10 or $15/month.  A few years later I saw the charge on the bill again but the light had never been turned back on.  I brought all my bills to the utility, showed them the charges and was compensated for the $200+ overcharge.  That being the case there would possibly be motive for an installer to 'tweak' this power meter when it went in.

 How would I find out if the power meter is accurately computing the power factor and how much would that calibration check cost? 

19  Bitcoin / Mining support / S5 board gone bad, options on: November 01, 2015, 09:34:03 PM
My S5 lost a board last night.  Chain 1 showed many "x"'s.  I changed supplies, no help, in fact chain 1 went completely dashes.  I swapped sides.  Chain 2 went all "x"'s.  I lowered the frequency to 200M.  Ten "0"'s and 20 "x"'s on the bad board!  I cleaned the board.  Now all "x"'s again.  Must admit the board had gotten dusty and the heatsink fins had accumulated dust at the intake.  My last try today was the newest firmware.  So, I believe the board has gone bad.  This is a Batch 1 S5 I bought in March, well beyond the 3 month warranty.  What kind of charges have others seen from Bitmain for this kind of board return and repair?  Thanks for insight.
20  Bitcoin / Bitcoin Technical Support / bitcoin core, 2 systems. on: July 13, 2015, 09:11:16 PM
I have Bitcoin Core on two systems.  One is synchronized the other still a few weeks behind.  I know I can copy the blockchain from one to a properly configured external drive then load the blockchain to the newer system using the command line switches.  But, can I add the complete system as a peer to the incomplete system?  It's only a few weeks behind but getting data slowly.  It will probably be complete by tomorrow morning regardless but just wondering.
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