Hi!

A year ago before mining hype I made my first rigs. Sometimes I faced problems with buying GPUs when everybody wanted to become miner but more problems occurred when I wanted to sell my old rigs.

While I was selling I had to deal with a lot of fraud: criminals, fake money and so on. Also there was a problem with demonstration of rig I have to show buyer that rig is working. I can't do that at home or in the building where all rigs are situated because it's not public place. And the most annoying thing is wasting 2-3 hours on each deal. If you have 100 rigs you have to make 100 appointments or even more.

For buyers this process in also not very secure. I know people that were scammed while trying to order ASICs or GPUs. And it is very difficult to find good rig on forum or Craigs List there are no specific filters and it takes a lot of time and effort. And if you order a delivery you can't check whether rig is working or not. You need at least 24 hours to make sure that everything is ok with used rig.

Then I came up with the idea of making specific marketplace for miners with smart contracts and rating system. Buyer pays ETH in smart contract then seller sends rig to buyer for inspection. Buyer has 24 hours to check everything if it's fine then seller gets ETH if not buyer sends rig back then seller checks if nothing is missed and ETH goes back to buyer. In case of conflict there will be arbitration process. Detailed procedure is written in draft whitepaper. It will be possible to find lawyer, investor, engineer, logistic company, staff and everything that you need to organize big mining farm in one place.

Later I plan to negotiate with manufacturers and suppliers to put warranty and serial numbers of equipment in blockchain so when you buy you can check whether the warranty is still valid or not and you can send GPUs on warranty without papers.

This is very short presentation of the idea I have long version on 15 pages that needs a little work to go public. I just wanted to ask community do you need such marketplace or not? What problems do you face while selling your used rigs? I want to invest money in team that will make MVP and then maybe we try to go on ICO.