Live data from Hacker News

Inside a Chinese Bitcoin Mine

thecoinsman.com

41–46 of 46 posts

Re: Inside a Chinese Bitcoin Mine

#41
post #26

Earlier quoted context omitted.

Again, not a problem.

Possible, perhaps, "not a problem", seems pretty untrue. How exactly would someone go about cashing out $200k worth of bitcoin?

Sell on an exchange. The big ones have a monthly trade volume of 100k+ BTC ($50+ million): http://bitcoinity.org/markets/list?currency=ALL&span=30d Clearly $200k is a drop in the bucket for them.

Re: Inside a Chinese Bitcoin Mine

#42
post #6

Is there any estimate of how much income this particular mine can produce, compared the the capital outlay and the ongoing costs?

This operation currently mines about $262k per month: 230e9 (each machine does 230 Ghash/s) * 2500 (# of machines) * 3600 (second/hour) * 730 (hour/month) / (2^32 (average number of hashes to solve a block at diff=1) * 19.8e9 (current Bitcoin difficulty)) * 25 (BTC/block) * 590 (USD/BTC) = $262000/month The article says their electricity bill is $60k per month. Subtract the 3 employees salaries, say $5k per month (th…

How much would they have paid for 2500 machines that can do 230 Ghash/s each?

Re: Inside a Chinese Bitcoin Mine

#43
post #12
post #6

Earlier quoted context omitted.

This operation currently mines about $262k per month: 230e9 (each machine does 230 Ghash/s) * 2500 (# of machines) * 3600 (second/hour) * 730 (hour/month) / (2^32 (average number of hashes to solve a block at diff=1) * 19.8e9 (current Bitcoin difficulty)) * 25 (BTC/block) * 590 (USD/BTC) = $262000/month The article says their electricity bill is $60k per month. Subtract the 3 employees salaries, say $5k per month (th…

The article says their electricity bill is $60k per month. Subtract the 3 employees salaries, say $5k per month (this is China). So you are looking at a pure profit of $197k per month. Three other significant expenses worth considering: rent/physical plant, hardware, and taxes.

In most cases in mainland China, no tax is paid and cash is king. Only if you are a large, visible company doing business with other large, visible companies do you need to get formalistic. Even then, double or triple sets of accounts are normal.

Re: Inside a Chinese Bitcoin Mine

#44
post #12

Earlier quoted context omitted.

The article says their electricity bill is $60k per month. Subtract the 3 employees salaries, say $5k per month (this is China). So you are looking at a pure profit of $197k per month. Three other significant expenses worth considering: rent/physical plant, hardware, and taxes.

In most cases in mainland China, no tax is paid and cash is king. Only if you are a large, visible company doing business with other large, visible companies do you need to get formalistic. Even then, double or triple sets of accounts are normal.

I pay plenty of taxes. Heck, I pay the tax on my rent for a fapiao that gives me a tax benefit at work. The PRC is getting better about tax collection, though a lot of activity still goes on underground, especially those that are related to money laundering.

Re: Inside a Chinese Bitcoin Mine

#45
post #6

Is there any estimate of how much income this particular mine can produce, compared the the capital outlay and the ongoing costs?

This operation currently mines about $262k per month: 230e9 (each machine does 230 Ghash/s) * 2500 (# of machines) * 3600 (second/hour) * 730 (hour/month) / (2^32 (average number of hashes to solve a block at diff=1) * 19.8e9 (current Bitcoin difficulty)) * 25 (BTC/block) * 590 (USD/BTC) = $262000/month The article says their electricity bill is $60k per month. Subtract the 3 employees salaries, say $5k per month (th…

you forgot to include capital expenditures, asics are expensive.

Re: Inside a Chinese Bitcoin Mine

#46
post #16

Earlier quoted context omitted.

That's the one thing that keeps eating at me. Would it not be trivial for a large corporation or government entity to throw enough money around to accomplish this? The only response I hear is that the market will magically prevent this.

Subverting the entire Bitcoin network is almost certainly not as much as a 1 ACE problem. (Aircraft Carrier Equivalent)

That, and for all we know, bitcoin was started by $FRIENDLY_GOV in the first place.
Post reply on HN