> For the complete documentation index, see [llms.txt](https://legacy-docs.usdd.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://legacy-docs.usdd.io/usdd-issuance/over-collateralization-and-transparency.md).

# Over-Collateralization and Transparency

The stability and security of USDD are ensured by the over-collateralization of multiple mainstream cryptocurrencies, including BTC, USDT, USDC, and TRX. 

Please check the latest Collateral of USDD and Collat. Ratio from <https://usdd.io/#/> or <https://tdr.org/#/>.

## Collateral Details

### TRX Burning Details

Below is the TRX burning contract managed by the TRON DAO Reserve.

| TRX Burning Contract                                                                                    | Amount           | Value         |
| ------------------------------------------------------------------------------------------------------- | ---------------- | ------------- |
| [TNMcQVGPzqH9ZfMCSY4PNrukevtDgp24dK](https://tronscan.org/#/address/TNMcQVGPzqH9ZfMCSY4PNrukevtDgp24dK) | 8,997,566,086TRX | $ 725,332,043 |

### Reserve Details and Collat. Ratio

#### Check from the USDD Homepage

1. Go to the page <https://usdd.io/#/> and scroll down to the **Transparency** section. Collat. Ratio is shown in the bottom right corner.

<figure><img src="/files/pel88DtOC1fWvKLt848G" alt=""><figcaption><p>Sreenshot taken on March 16, 2023</p></figcaption></figure>

2. To see the reserve details, click on the **Collateral Details** button in the lower left corner and scroll down in the pop-up window.

<figure><img src="/files/fJ8FrKlFxcvlRgzYHCq1" alt=""><figcaption><p>Sreenshot taken on March 16, 2023</p></figcaption></figure>

#### Check from the TDR Homepage

1. Go to the page <https://tdr.org/#/> and scroll down to the **Transparency** section. Collat. Ratio is shown in the bottom right corner.&#x20;

<figure><img src="/files/MlZVW7oMSf70d7ZfEoBv" alt=""><figcaption><p>Sreenshot taken on March 16, 2023</p></figcaption></figure>

2. To see the reserve details, click on the **Collateral Details** button in the lower left corner and scroll down in the pop-up window.

<figure><img src="/files/tOxh98utSRj5nX3nXUvN" alt=""><figcaption><p>Sreenshot taken on March 16, 2023</p></figcaption></figure>

### Signatures

<table><thead><tr><th width="200">Address</th><th>Network</th><th>Message</th><th>Signature</th></tr></thead><tbody><tr><td>1KVpuCfhftkzJ67ZUegaMuaYey7qni7pPj</td><td>BTC</td><td>trondaoreserve</td><td>IJCF8Myp5NCirj4kc9NAChZAqt2p2SM9yOzvvUcJyS1NZpE9HQAIlA/mviXuAcYQNiAYFKGtMXVDe2QzQ0WHspI=</td></tr><tr><td>TSF2rqLdrrZG7PZkDxtvu6B2PTpofidMAX</td><td>TRON</td><td>trondaoreserve</td><td>829fd880823414918e97aaa23698ee2f6211c46aec3c82191a5c653f3d0bab7c09ae7b23a7cb369e299f4afd169a518579697b41779153b919b584a94e606d3b01</td></tr><tr><td>TZ1SsapyhKNWaVLca6P2qgVzkHTdk6nkXa</td><td>TRON</td><td>trondaoreserve</td><td>779303d66a40fed8f08585c36c495520fbad0bfade3116f3c9b3d4fcbe6f65630ade6b10a4bf4e565babc30ae20914f0a0dadb9e54d8dbb73931a0c64c665cab00</td></tr></tbody></table>

### How to verify signatures?

#### For the BTC reserve account, please follow the steps below to verify the signature.

1\. Find the reserve account and signature to be verified in the table above.

2\. Open ["Bitcoin.com"](https://www.bitcoin.com/tools/verify-message/) and fill in the Bitcoin address, message, and signature in the signature information to verify.

#### For the TRON reserve account, please follow the steps below to verify the signature.

1\. Find the reserve account and signature to be verified in the table above.&#x20;

2\. Open ["TRONSCAN"](https://tronscan.org/#/tools/verify-sign/) and fill in the address, message and signature. Click on "Verify Signature" to finish the verification.