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Hmm, well the last timestamp from the 2nd dump is consistent with the time I made it, so it looks like recent data is at least consistent with UTC.
I'll just trust this data, hope i won't regret this one day.
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Personally I've been looking at other exchanges more recently, so you might want to consider other exchanges too, especially as you're worried about whether you can trust Mark. I'm quite interested in Kraken as it looks like it has a lot of potential, but I'm primarily using Bitstamp at the moment. There's some published CSVs for many exchanges here http://api.bitcoincharts.com/v1/csv/, although obviously then you have to trust bitcoincharts to have collected the data properly (I haven't analysed their data yet, but I assume it's fairly reliable; from a quick look the bitstamp one definitely seems to include the major price spike at roughly the right time).
Oh when i became interested in BTC this year again one thing i was really clear about was: I won't put again money in Mtgox. And i was happy for bitcoin that now there are three Big USD BTC Exchanges: btc-e, Bitstamp and Mtgox. I tried bitstamp (really like look and feel of the site, customer service replies fast, cashing out no problem so far) btc-e (service is a bit harsh) and bitfinex. Have to say Kraken looks nice maybe i give it shot. Volume is probably low so and prices are a bit higher, withdrawal problems?
The reason why i wan't to use Mtgox Data is no one goes back so far. And since Mtgox has a significant higher price than other exchanges its maybe not so wise to mix the data between exchanges.
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Did i already say: That's a good link. Thanks.
Do you know something about timestamp with Bitstamp? Just downloaded the data, i assumend unix timestam. i converted with like this: A1/(24*3600)+25569 gives me as first trade:
13.09.2011 13:53:36
is that right Bitstamp was already back then in 2011 around - wow should have known that back then would maybe have saved some money
