> For the complete documentation index, see [llms.txt](https://t-blocks.gitbook.io/t-blocks-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://t-blocks.gitbook.io/t-blocks-documentation/faq/technical-digital-infrastructure.md).

# Technical / Digital Infrastructure

**Which blockchain does T-Blocks use?** The XRP Ledger, an open-source, decentralised blockchain with 12+ years of production history, 3–5 second settlement finality, and institutional-grade throughput.

**Are smart contracts audited?** Yes. Token smart contracts are reviewed by independent security auditors before deployment.

**What stablecoins are supported for subscription?** The Digital Primary Market supports subscription in RLUSD (Ripple's institutional stablecoin) and other stablecoins available on the XRP Ledger, as well as fiat conversion where applicable.

**Can I transfer my tokens to another investor?** Subject to the SubFund's transfer restrictions and compliance requirements. All transfers are subject to KYC/AML verification of the recipient. Transfers to non-verified wallets are rejected at the smart contract level.