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In a fantasy world,a celebrity chef like Aaron Sanchez would prepare all of your meals,and use only sustainably sourced organic produce.
在一个虚幻的世界里，像艾伦·桑切斯这样的名厨会为你准备所有的食物，只使用可持续的有机农产品。
Reality is everyone has to shop for and prepare our own food at some point.
事实上，每个人都要自己去购物，自己准备食物。
How can you be sure that you’re getting the best ingredients?
你怎么能确定你吃的是最好的食材呢？
That those organic vegetables are in fact organic.
这些有机蔬菜实际上是有机的。
IBM thinks the solution lies in blockchain technology.
IBM认为解决方案在于区块链技术。
IBM is connecting the worlds food supply from farmer to producer, supplier to manufacturer.
IBM正在把世界粮食供应从农民到生产者、从供应商到制造商连接起来。
And so were connecting it in a secure, shared platform which is blockchain.
所以我们把它连接到一个安全的共享平台上，这个平台就是区块链。
A blockchain is a decentralized digital ledger,
区块链是一种去中心化的数字分类账，
where transactions are recorded, verified and become permanent and immutable.
其中的交易被记录、验证并具有永久性和不可变性。
With IBM Food Trust, a record of foods journey through the supply chain is created at each step.
在IBM Food Trust中，每一步都会创建食品在供应链中的旅程记录。
How exactly does it work?
它到底是如何运作的？
So blockchain uses cryptography and we use hashing.
区块链使用密码学，我们使用哈希算法。
And what that means is the information is connected to each other,
这意味着信息是相互联系的，
and if you try to change the information, it changes the hashing,so that you know it has been compromised.
如果你试图改变信息，它会改变哈希算法，这样你就知道它被破坏了。
And the technology can be used for any number of foods, fresh or packaged.
这项技术可以用于任何数量的食物，新鲜的或包装好的。
So our consumer can scan a package of scallops,and understand that its coming from a place that sustainably source,and it is fresh and the best-tasting scallops.
因此，我们的消费者可以扫描包装的扇贝，并了解它来自一个可持续的来源，它是新鲜的，味道最好的扇贝。
For chefs like Sanchez, blockchain technology helps engender trust around the food distribution and handling process.
对于像桑切斯这样的厨师来说，区块链技术有助于在食品分发和处理过程中建立信任。
Before I mean the farmer would send it to a middle person, a distributor, and the distributor would send it to us,
我的意思是农民会把它寄给中间的人，一个经销商，经销商会把它寄给我们，
so it was one entity removed from the actual farmer.
所以这是一个来自真正农民的实体。
A foods traceability becomes especially pertinent in the wake of foodborne outbreaks. 食品可追溯性在食源性疾病暴发之后变得尤为重要。
You know, instead of decimating the whole farm because there was one outbreak, now we can isolate to that one little parcel.
你知道，不是因为一次爆发就摧毁了整个农场，现在我们可以孤立这一小块区域。
With blockchain, farm-to-table takes on a new meaning.
有了区块链，“从农场到餐桌”有了新的含义。
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