|
Title: [WTS] 20 Avalon chips from zefir's ordering (batch 6) Post by: m_yaw on May 01, 2013, 09:55:49 PM Hi, I
For personal reasons I would like to give away my order for 20 Avalon chips (~280 MHash/chip; zefir's thread: https://bitcointalk.org/index.php?topic=177827.0). I believe the order is part of batch 6. No price markup, so it would be 1.72 BTC (20 * 0.086) m_yaw; 20; 1.72; 1wZKwZ7kEqdsZyDjYuFR7okZYiKV4KhcD Contact me via PM! PS: If you have a good idea how to handle this, let me know... Proof of address ownership: Code: Address: Title: Re: [WTS] 20 Avalon chips from zefir's ordering (batch 6) Post by: m_yaw on May 02, 2013, 12:11:02 PM This is the approach I propose to make this deal happen:
Quote Background on the chip ordering process: The person who can prove that he/she owns the sending BTC address has the right to tell zefir (=the guy who I ordered the 20 chips from) where he should send the chips. Also, if you want to have your chips assembled (e.g. burnin's thread: https://bitcointalk.org/index.php?topic=179769.0) you need to prove that you own the BTC address; How to prove that you own an address: To prove that one owns a BTC address one can sign a message using the private key for this address (works in the official BTC client). Other people can verify the resulting message signature and this would prove that you own the private key to this address. I did this for example in my forum post. Now, to come to the point: If I give you the private key to the Bitcoin address, both of us could sign a message to prove that we are the rightful owner of the address. Of course you could trust me that I wouldn't do such a thing. To overcome this problem I suggest the following approach: 1. You send the 1.72 BTC from an address that you control (=can sign a message with) to the ordering address (1wZKwZ7kEqdsZyDjYuFR7okZYiKV4KhcD) 2. I then send the 1.72 BTC to an address controlled by myself and embed a message into the blockchain stating that <yoursending address> is the new owner of 1wZKwZ7kEqdsZyDjYuFR7okZYiKV4KhcD. That way, since I don't own your sending address, I can't prove anymore that I am the rightful owner of 1wZKwZ7kEqdsZyDjYuFR7okZYiKV4KhcD 3. I will then send you the private/public keys to 1wZKwZ7kEqdsZyDjYuFR7okZYiKV4KhcD and archive my own copies. 4. We make this transfer public in the bitcointalk.org forum, you should cite my posts so that even if I should delete my account or all my posts the public still has a record of it. Feedback on how I could improve this is welcome! Title: Re: [WTS] 20 Avalon chips from zefir's ordering (batch 6) Post by: m_yaw on May 02, 2013, 12:55:07 PM I have an offer so please hold your PMs (unless you have a reaallly good offer ;))
Title: Re: [WTS] 20 Avalon chips from zefir's ordering (batch 6) Post by: Chemicalbro on May 02, 2013, 01:00:17 PM Interested if your offer doesn't pan out. PM.
Title: Re: [WTS] 20 Avalon chips from zefir's ordering (batch 6) Post by: m_yaw on May 04, 2013, 07:10:44 PM can be closed...
For future reference: Have a look at what zefir writes about "after sales trades" here: https://bitcointalk.org/index.php?topic=177827.msg2017945#msg2017945 Title: Re: [WTS] 20 Avalon chips from zefir's ordering (batch 6) Post by: scintill on July 24, 2013, 02:36:11 AM So you decided not to since zefir doesn't support transfers? I'm interested in this.
I think it could work if you register on zefir's site (https://verify.wpengine.com/), have the funds escrowed to a trusted third party, lock the shipping address to the buyer's, post a signed receipt of that from the site, then the escrow releases the funds. A little scary, but should work. |