> For the complete documentation index, see [llms.txt](https://doortoken.gitbook.io/nil-help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doortoken.gitbook.io/nil-help/nil-contract/contract-audit.md).
# Contract Audit
~~Old Contract Address: **0xD31B00deA80cF282aCE1791D204d76a85Fb82556 (No longer used)**~~
V2 Contract: **0x0eb638648207d00b9025684d13b1cb53806debe4**
### Audit #1 by VTS
The NIL Contract was audited by VTS. Copy of the Report is [**downloadable here**](https://nilcoins.com/whitepaper/NIL%20-%20Smart%20Contract%20Security%20Audit.pdf)**.** The contract address was different when we performed the audit. We used this contract as the test environment prior to launch. The contract code was the same.
### Audit #2 by Arbitech Solutions
The second Audit was performed by Arbitech Solutions and can be [downloaded here](https://nilcoin.com/whitepaper/NIL%20Contract%20Audit%202.pdf).
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