> For the complete documentation index, see [llms.txt](https://metya.gitbook.io/metya/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://metya.gitbook.io/metya/glossary-and-references/references-and-standards.md).

# References & Standards

* Ethereum/EVM — ERC-20, ERC-721, ERC-1155, ERC-5192 (SBT), EIP-712 (signing), UUPS/Transparent Proxy.
* Privacy & Compliance — GDPR, CCPA, OFAC sanctions, PEP screening, and Travel Rule where applicable.
* Security/Engineering (targets) — ISO/IEC 27001/27701, SOC 2 Type II, SLSA supply-chain security (aspirational targets, not immediate certifications).