Proof of reserves is not one thing: five assets, five kinds of proof储量证明不是一个东西：五种资产，五种证明

Why the phrase misleads为什么这个说法容易误导

In crypto, proof of reserves usually means one thing: an exchange shows wallet balances that cover what it owes customers. Anyone can check a balance onchain, so the proof is close to self-evident.在加密行业，“储量证明”通常只有一个意思：交易所公开钱包余额，证明它足够覆盖欠客户的钱。链上余额谁都能查，所以证明几乎不言自明。

Real-world asset tokens borrowed the phrase but not the property. Gold bars, a mineral deposit, an invoice, a treasury bill and a building do not live on a chain. Each one is proven in a different way, by different people, with different failure modes. Treating them as one problem is how investors end up trusting a dashboard that proves nothing.现实资产代币借用了这个词，却没有这个特性。金条、矿床、一张发票、一张国债、一栋楼，都不在链上。每一种的证明方式不同、出证明的人不同、出问题的方式也不同。把它们当成同一个问题，投资人就会去相信一个其实什么都没证明的仪表盘。

Gold in a vault金库里的金条

Vaulted metal is the easiest case, and the standard is old. Large gold bars carry a serial number, refiner, weight and fineness. Proof means a bar list matching those details, held by a custodian that is not the issuer, and physical counts by an independent auditor at regular intervals.金库里的金属是最简单的情况，标准也最成熟。大块金条都有编号、精炼厂、重量和成色。证明的意思是：一份和这些信息一一对应的金条清单，由发行人以外的托管方保管，并由独立审计师定期实地盘点。

The questions that matter: is the bar list public and does it change when tokens are minted or burned; is the metal allocated to the token holders or part of a general pool; and is the report an audit or an attestation. An attestation confirms what management asserted on one date. It is useful, but it is not the same as an audit.关键问题有三个：金条清单是否公开，代币增发或销毁时清单是否跟着变；金属是分配到代币持有人名下的，还是放在一个混合池子里；报告是审计还是“鉴证”。鉴证只确认管理层在某一天的说法，有用，但不等于审计。

A deposit still in the ground还埋在地下的矿

Here the word reserves has a precise meaning, and it is often misused. Under mining reporting codes such as JORC and NI 43-101, a mineral resource is a geological estimate. A mineral reserve is the part of it shown to be economically mineable once mining, processing, legal and market factors are applied, which takes at least a pre-feasibility study. An inferred resource cannot be counted as a reserve at all.在这里，“储量”这个词有严格的含义，而且常被用错。按 JORC、NI 43-101 这类矿业报告标准，“资源量”是地质估算；“储量”是其中在考虑了开采、选冶、法律和市场因素之后被证明能经济开采的部分，至少需要做到预可行性研究。推断级资源量根本不能算作储量。

So a token that is backed by metal in the ground is backed by an estimate, signed by a qualified or competent person, of material that may or may not be mined at a profit. What a holder can actually enforce is a claim on the company that holds the mining right and on its future sales. Proof for this asset is the technical report and its date, the legal title to the mining right, and, once the mine operates, production and sales records. Anyone who quotes in-ground ounces as if they were vaulted bars is making a category error.所以，一个“由地下金属背书”的代币，背后其实是一份由有资质专家签字的估算，估算的是一批不一定能盈利开采出来的矿。持有人真正能主张的，是对持有采矿权的公司及其未来销售收入的权利。这类资产的证明是：技术报告及其日期、采矿权的法律权属，以及投产后的产量和销售记录。把地下的盎司说得像金库里的金条，是把两类东西混为一谈。

Invoices and receivables发票和应收账款

For trade receivables the asset is a promise by someone else to pay. Its existence is easy to fake and the classic failure is not a missing invoice but the same invoice, or the same cargo, financed more than once. Trade-finance frauds in several markets have followed exactly that pattern.应收账款这类资产，本质是别人承诺付款。它很容易造假，而经典的出事方式不是发票不存在，而是同一张发票、同一批货被重复融资。好几个市场的贸易融资欺诈案都是这个套路。

Proof here means confirmation from the debtor that the invoice is real and unpaid, the underlying contract and shipping documents, a check against any registry of pledged receivables, and payment records that flow back to the token holders. A list of invoices uploaded by the originator proves only that a list was uploaded.这里的证明是：债务人确认发票真实且未付、底层合同和运输单据、查询已质押应收账款的登记、以及回款流向代币持有人的记录。原始发起方自己上传的一份发票清单，只能证明“有人上传了一份清单”。

Treasuries and fund shares国债和基金份额

Tokenized treasury products are usually shares of a fund that holds the bills, not the bills themselves. Proof is the fund's own records: holdings statements from the custodian bank, the fund administrator's net asset value, and the transfer agent's register that says which wallet owns which shares.代币化国债产品，通常是持有国债的基金的份额，而不是国债本身。证明来自基金自己的记录：托管银行的持仓对账单、基金管理人计算的净值，以及过户代理人登记的“哪个钱包持有多少份额”。

This is the most mature category because the plumbing already exists in traditional finance. The questions shift from does it exist to who can redeem, how fast, and what happens to the token if the register and the chain disagree.这是最成熟的一类，因为传统金融里这套管道早就有了。问题从“东西在不在”变成了：谁能赎回、多快能赎回、以及登记册和链上记录不一致时以哪个为准。

Property房产

A token rarely owns a building. It owns shares in a company that holds title. Proof is the land registry entry for that company, a search for mortgages, caveats or other claims against the property, an independent valuation with its date, and the company's accounts.代币很少直接拥有一栋楼，它拥有的是持有产权的公司的股份。证明是：这家公司在土地登记处的产权记录、对该物业有无抵押、警示登记或其他权利主张的查询、注明日期的独立估值，以及公司账目。

The weak point is usually not title but encumbrance: a property that is real and correctly titled can still be pledged to a bank ahead of the token holders.薄弱环节通常不在产权，而在“权利负担”：一处真实存在、产权清楚的物业，照样可能先抵押给了银行，排在代币持有人前面。

What the chain adds, and what it cannot区块链能加什么，不能做什么

A blockchain is good at three things here. It can timestamp a document and store its fingerprint, so a report quietly edited later no longer matches. It can publish data from a custodian on a schedule through an oracle, so anyone can see when a feed stops or changes. And it can enforce rules, such as refusing to mint tokens beyond what the latest proof supports.区块链在这里擅长三件事：给文件打时间戳、存下它的“指纹”，事后被偷偷改过的报告就对不上了；通过预言机按时发布托管方的数据，谁都能看到数据什么时候断了或变了；以及执行规则，比如增发不能超过最新证明所支持的数量。

It cannot make a document true. A fingerprint of a false report is a permanent record of a false report. Every proof above still depends on who signs it and whether they are independent of the issuer. The chain makes the trail tamper-evident; the people on the trail still carry the trust.它做不到的，是让一份文件变成真的。一份假报告的指纹，就是一份假报告的永久记录。上面每一种证明，最终仍取决于谁签字、签字的人是否独立于发行人。区块链让这条证据链改不了；但信任仍然落在链上那些签字的人身上。

Five questions to ask any issuer问任何发行方的五个问题

1. What exactly does the token give me a claim on: the asset, a company that holds it, or a fund share?1. 这个代币到底让我对什么有权利：资产本身、持有资产的公司，还是基金份额？

2. Who, other than you, signs the proof, and how often?2. 除了你们自己，谁在证明上签字，多久签一次？

3. Is the proof an audit, an attestation, a registry record or a technical report, and what date is it?3. 证明是审计、鉴证、登记记录还是技术报告，日期是哪天？

4. How would I know if the same asset were pledged or sold to someone else?4. 如果同一份资产被抵押或卖给了别人，我怎么才能知道？

5. If something goes wrong, what do I redeem, through whom, and how long does it take?5. 出了问题，我能赎回什么、通过谁、要多久？

An issuer that answers all five plainly has usually thought hard about the asset. One that answers with a chain explorer link has usually not.能把五个问题都说清楚的发行方，通常是认真想过这份资产的；拿一个区块链浏览器链接来回答的，通常没有。

We work on real-asset tokenization in Singapore and will keep writing about the parts that decide whether a token is worth holding. If you have seen proof of reserves done well for a hard case, we would like to hear how.我们在新加坡做现实资产代币化，会持续写那些决定一个代币值不值得持有的环节。如果你见过在难办的资产上把储量证明做得很好的例子，欢迎告诉我们是怎么做的。