bitcoinexchange.com 服务的原型现在已经可以用了（登录信息：bitcoin/bit）。它运行在使用 Python 的 Django Web 应用框架上；与 PHP 相比，用起来让人愉快得多。
I have a prototype of the bitcoinexchange.com service up now (auth:
bitcoin/bit). It's running on the Python-powered Django web
application framework, which is a pleasure to work with, compared to
php.接下来几天我得学习，之后就能继续做兑换服务。接下来要做的事情包括调整定价，让比特币的价格在我持有的数量接近零时趋向无穷大。这样就能找到市场价格，并维持在供需平衡的水平。我还不完全确定这条定价双曲线应该采用什么参数，这还需要想一想。
I'll have to do some studying for a few days now, after which I can
return to work with the exchange service. Among other things I'll fix
the pricing so that the price of Bitcoins grows towards infinity when
my supply of them gets closer to zero. That way I can find the market
rate and stay at the point where supply meets demand. I'm not yet
completely sure what the parameters of the hyperbolic pricing curve
should be, so that's something to think about.
你总可以兑换成 Liberty Reserve。它是一种类似 e-Bullion、Pecunix 或 Webmoney 的在线货币，允许兑换，不多过问，也保护隐私。
You could always exchange for Liberty Reserve. It's an online currency similar to e-Bullion, Pecunix or Webmoney that allows exchanges no questions asked and with privacy.
LR 和其他这类货币难买，但容易兑现。难买是因为兑换商非常谨慎，怕被撤销付款骗走钱，所以要求更多资料和等待时间。兑现则很容易。LR 不可撤销，所以有大量兑换商乐意把 LR 换成任何形式的付款。
LR and the others are hard to buy but easy to cash out. Hard to buy because exchangers are very cautious about getting ripped off by reversed payments, so they require more details and holding time. Cashing out is very easy. LR is non-reversible, so there are oodles of exchanges eager to turn LR into any kind of payment.
比特币则相反，只要生成就能轻松获得比特币。顾客很容易走 bitcoin->LR->cash、bitcoin->LR->gold、bitcoin->LR->paypal 这样的路径，或者可能只是想把钱存着，那就只需 bitcoin->LR。
Bitcoin is the reverse, in that it's easy to get Bitcoins just by generating them. It would be easy for customers to go bitcoin->LR->cash, bitcoin->LR->gold, bitcoin->LR->paypal or maybe they just want to save the money, then just bitcoin->LR.
还有 BTC2PSC 的想法：用比特币出售 paysafecards。既可以发邮件提供卡号，在线交付，也可以邮寄未拆封的实体卡。这些卡有很多变体。在某些国家，它们叫礼品卡，任何接受信用卡的地方都能用。我想，更多使用者是那些信用记录不足、办不了真正信用卡的人，所以他们自己购买礼品卡，用来支付需要信用卡的东西。
There's also the idea BTC2PSC had to sell paysafecards for bitcoins. Either online delivery by sending the card number by e-mail, or delivery of the unopened physical card in the mails. There are many variations of these cards. In some countries, they're called Gift Cards, and can be used wherever credit cards are accepted. I think they're used more by people who don't have the credit history to get a real credit card, so they buy gift cards themselves to pay for things that require a credit card.
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Exchange ideas
