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1  Economy / Digital goods / [S] domain on: February 10, 2015, 06:41:59 PM
Hello im selling the domain name

fixed price is 1 BTC

Anyone interested?
2  Bitcoin / Development & Technical Discussion / Exposing private key by signing the same message twice? on: January 09, 2015, 10:14:55 PM

i red about the flaw with reused R values in the signature of a transaction.

And i wonder if it possible that the private key is exposed when someone signs the same message with the same private key.
3  Economy / Goods / [WTS] delete on: October 28, 2014, 06:32:08 PM

4  Local / Biete / Biete 500€ Gutschein on: June 24, 2014, 05:38:21 PM

ich biete einen 500 € Gutschein.
Gültig bis 31.12.2014

Preis: 0.88 BTC VHB


5  Economy / Currency exchange / [WTS] 950 XRP on: June 30, 2013, 12:37:13 PM
I have 950 XRP and want to sell them, make me an offer.

No Escrow, first the BTC then i send the XRP.

6  Economy / Auctions / [WTS] 1000 Pre-Order on Avalon-Chips on: June 28, 2013, 11:02:18 AM
Auction is for a preorder of 1000 Avalon ASIC chips from Zefirs groupbuy.

Start: 130 BTC

End of auction: 1. July 2013 23:59:00 CET

Process after auction:

Zefir will create a website where you have to sign a message with the destination address of the preorder to get those chips.
You will get the private key after payment and with it you can claim the chips for you,
i know you have to trust me because i could claim the chips for myself,
but in that case this is an official thread where everyone even zefir can see that you have bought and paid my preorder.

Payment address will be published after end of auction.
After payment you have the full rights and obligations of this preorder.

Timer removed. End time: 2013-07-01+23:59:00
7  Economy / Marketplace / [WTS] 1000 Pre-Order on Avalon-Chips on: June 17, 2013, 02:40:15 PM
I would like to sell 1000 chips from Zefirs Groupbuy from Batch #3:

#10037    April 20, 2013    Chips ordered    ฿782.10 for 1 item


1-9 Chips: 0.40 BTC / Chip
10-99 Chips: 0.35 BTC / Chip
100-499 Chips: 0.30 BTC / Chip
500-1000 Chips: 0.25 BTC / Chip

Free shipping worldwide.

Dont complain about prices.
If you want escrow you have to organize and pay for it. I would prefer JohnK.
8  Economy / Auctions / [AUCTION] 1.000 Avalon Asic Chips from Zefirs Groupbuy on: May 04, 2013, 12:53:24 PM

I am selling my preorder from Zefirs Groupbuy for Avalon ASIC Chips.

I preordered 1.000 Chips #3 Order #10037 - April 20.

#10149 April 30, 2013 Processing ฿1,564.20 for 2 items
#10137 April 28, 2013 Processing ฿782.10 for 1 item
#10105 April 24, 2013 Chips ordered ฿782.10 for 1 item
#10037 April 20, 2013 Chips ordered ฿782.10 for 1 item <- My Preorder
#9921 April 20, 2013 Chips ordered ฿782.10 for 1 item
#9725 April 16, 2013 Chips ordered ฿782.10 for 1 item

See the order here:

The winner gets a signed message with his destination where the chips will be shipped.
When Zefir requests this information you only have to send him this signed message.
If Zefir requests more information i will sign a new message for you.

If you prefer escrow we can use JohnK´s escrow service.
But BTC have to be released after you received the first signed message.

Starting Bid: 172 BTC
Minimum increment: 0.1 BTC
End of Auction: May 11, 2013 - 18:00 UTC

Timer removed. End time: 2013-05-11+18:00:00UTC
9  Local / Biete / [B] 1000 Avalon ASIC Chips aus Zefirs GroupBuy on: May 04, 2013, 10:03:39 AM

da ich mich jetzt auf einem anderen Gebiet in der Bitcoinwelt spezialisieren will.
Wollte ich meine Chips aus dem Gruppenkauf von Zefir an den Mann bringen.

Ich habe insgesamt 1000 Chips vorbestellt bei Zefir aus seinem Batch #3 Order #10037 vom 20. April.

Also 2 Wochen vorsprung vor denen, die jetzt erst bestellen.

Ich sag jetzt mal 200 BTC Sofortkauf, ich weiss der Preis ist höher als wenn man die Chips direkt von Avalon kauft.
Aber ihr habt einen entscheidenen Vorteil in der Zeit.

#10149 April 30, 2013 Processing ฿1,564.20 for 2 items
#10137 April 28, 2013 Processing ฿782.10 for 1 item
#10105 April 24, 2013 Chips ordered ฿782.10 for 1 item
#10037 April 20, 2013 Chips ordered ฿782.10 for 1 item <- Meine Order ist hier dabei!
#9921 April 20, 2013 Chips ordered ฿782.10 for 1 item
#9725 April 16, 2013 Chips ordered ฿782.10 for 1 item

Meine Order:

Ich biete keine Treuhandservice an, weil ich die Bitcoins sofort für mein Projekt brauche.
Ich bin aber bereit eine Kopie von meinem Personalausweis etc. an den Käufer zu senden.

Naja ihr müsst für euch abwägen ob es euch das Wert ist, ob es sich lohnt etc.
Wie alles in der Bitcoinwelt ist es natürlich mit einem Risiko und einer Chance verbunden.

Ok meldet euch falls interesse besteht.

10  Bitcoin / Hardware / Kneckes custom Heatsinks for DIY Avalon Boards on: April 30, 2013, 10:31:46 PM

because there is a demand for heatsinks with custom hole patterns for DIY Avalon mining Boards, i have decided to offer these heatsinks.

But first i want to check how the feedback is for this service.

I think it makes no sense to ship these heatsinks to every single one because of shipping costs.
I thought about bulk shipping to services like Burnin´s

Description of Service:

- Heatsink with custom hole pattern for Burnin`s & BkkCoins DIY boards
- Bulk shipping to Burnin

If there is a chance to send heatsinks to BkkCoins for reasonable shipping costs i would offer this service for his boards, too.

We also should decide for a profile for the heatsink:
#1 Profile with for TO3 package 0.9K/W
#2 Flat Profile 1.0K/W

You dont make an order at this time i only want to estimate the demand for those heatsinks.

Quote from: Old Estimations
estimated Price will be 7€ + Tapping + (bulk shipping / heatsinks)
Something from 8-10 EUR per Heastink rather less.
I have to request 10.000+ heatsinks and maybe i get an additional discount.

Now i have a price for the Flat Profile: Heatsink + Tapping = 6 EUR excluded shipping & VAT

Ok give me feedback and i will give you a thermal FEM analysis for the boards with heatsinks tomorrow.
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