解决问题：在无可信赖第三方的情况下如何对企业等进行一系列评分。先做资质审查，只有钢储量30000吨以上的钢厂才能对下游螺丝厂做有效可信的匿名评分。
在一条完整的供应链上，包括了从配套零件，制成中间产品以及最终产品的整个过程。除去最终的消费者与最初的原材料提供商外，每个角色既是卖家、又是买家，他们都渴望找到最便宜又符合质量其需求的上游卖家。然而当没有足够严格的监管时，卖家往往会虚报其商品的质量以及数量等以吸引更多买家；另外小商家即使有价廉物美的产品也很难进入一个稳定的市场。我们希望用区块链改变这种现状。
A complete supply chain includes the whole procedure of corresponding raw material, intermediate products, and final products. Except for the consumers and raw material providers, everyone in this procedure is both a buyer and a seller, and they are all eager to find an upstream seller whose product meets the demands and is the least expensive. However, without strait supervision of this market, the sellers tend to report fake qualities and quantities of their products for more buyers, and small-scale sellers may find it hard to be in a stable market even if they possess cost-effective products. We want to change this situation via block-chain.
我们开发了一套可评分的商品信息展示平台，其基于区块链规范化的数据合约。在T&T中，卖家和买家被强制要求是现实里相关行业的公司并实名认证，以防其作恶。我们要求卖家免费上传其未来能供应的商品信息。买家可以在区块链上查询符合其需求的商品，以及提供商品卖家的信誉值，并从外部网站购买。当交易行为发生并被双方认可上传到区块链后，卖家的信誉值由购买过其商品的买家打分得出，得分按商品交易量加权得出。然而这样仍然无法避免买卖双方进行内幕交易并伪造信誉值的情况出现，这样会误导其余消费者。
We developed a commodity demonstration and rating platform, named Trade & Trust (T&T), which is based on the block-chain normalized data contract. In T&T, both the sellers and the buyers are obliged to identify themselves as real-world industry-related firms in case of mischief. We request sellers to freely upload the information on their goods that is going to ship in the feature. Buyers may search their expected products on this platform, together with the seller's reputation, and can purchase via external websites. When the transaction is been confirmed by both sides and is uploaded to the chain, the buyers may score the reputation of the seller based on this transaction. The score is calculated with weights. However, this may mislead the consumers because secret deals and forging reputations are still inevitable.
为此我们在平台中设计了第三方的身份。在T&T中，不仅卖家可以提供自己未来的商品信息，独立第三方也能根据其掌握的信息对卖家的商品情况做出预测。我们不强制要求第三方实名制，但他可以选择验证自己的身份来获得信任度。第三方可以是物流公司、咨询公司、甚至是一个独立数据分析专家，只要其对自己的数据有信心。第三方也有信誉值，评分源自于购买过其数据的买家。第三方提供的数据价格由市场决定：当其对某个行业或是某个公司能准确预测时，他就能取得较高的信誉值并受到更多买家的欢迎，从而通过获得出售自己的预测来获得更多回报。而不负责任的第三方在数次错误的预测后便会因为信誉值较低自动被市场所淘汰。
We designed the third party role in this platform to cope with this problem. In T&T, not only the sellers can provide information on their future products, but also independent third-parties can make predictions on these products based on their information. Their roles are more like auditors or judges. Although we do not enforce the third parties to provide their real names, they still can choose to verify their identity to win believabilities. The third parties can be delivery companies, consulting companies, and even an independent data analyzer. What matters is their confidence in their data. The third parties also have their reputations, which come from the buyers of their data. The price they offer is determined by the market~~: when these third parties can give precise predictions on some industries or companies, they will get higher reputation score and is more welcome among the buyers, which enables them to benefit more from the predictive data they sell.~~ Irresponsible third parties will die out after several faulty predictions because of their low reputations.
这套机制的核心目的是通过可以自由加入的第三方的存在来纠正卖家市场的不诚信报价。其效果类似于金融市场上的套利者，换言之，第三方是对买卖双方对于信息的不平衡进行套利。当卖家市场有不诚信的报价行为（例如虚假的质量评级）出现时，某些掌握真实信息的第三方会提出更为准确的报价，当购买行为发生后，双方的信誉评价会根据真实情况得到反馈。买卖双方的强制实名制以及区块链对上链记录的可追溯性保证了任何一家企业在提供虚假信息前会再三思考，因为其任何上传的信息都会得到追溯并影响其公司的信誉。而第三方的匿名性使得任何人都可以更自由地进入市场提供信息而不怕被威胁，而完全竞争市场的优胜劣汰则会将提供虚假信息的第三方逐渐淘汰，从而留下能提供有价值信息的第三方。在由于匿名第三方审计的存在，卖家会不得不提供真实数据从而维持自己的信誉，而在理想状态下，最终市场会走向一个更透明、公正的状态，第三方的审计也会如同金融市场的套利者一样，因为供应链市场买卖双方信息的平衡化而消失。
The core of this mechanism is to correct the non-honest quotes from sellers by introducing the third parties. The third parties, playing the role as arbitrageurs, arbitrage on the unbalanced information of the two parties. When the sellers give unreal quotes, some third parties possessing real informations may give more precise quotes. After the transaction is complete, both sides will rate each other according to the feedback of real situations. The mandotary real-name registration and the traceability of on-chain records ensures sellers consider thoughtfully before sending forged informations, since any information a seller uploads may affect his/her reputation. While due to the anonymities of the third parties, anyone can enter this market to sell their informations freely without the potential being threatened. The perfect competitive market will eliminate the third parties that falsify informations and keeps the parties gives valuable informations. As the anonymous third parties acting as auditors, the sellers will have to provide real quotes to maintain their reputations. In ideal cases, the market will become more transparent and fair, and the third-party auditors, playing as the arbitrageurs in the financial market, will eliminate with the formation of the balance between sellers' and buyers' informations in the supply-chain market.