> For the complete documentation index, see [llms.txt](https://docs.blockbolt.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockbolt.io/sui-network-sdk/flow-and-design.md).

# ✏️ Flow and Design

BlockBolt is **live on the Sui Network**, utilizing **Move-based smart contracts** to power transaction execution, token transfers, and secure payment verification. The protocol is architected for **modularity, scalability, and full decentralization**, enabling seamless interactions between merchants, wallets, and the blockchain — with **no intermediaries involved**.

***

**📦 Merchant SDK Architecture**

Visualizes how merchants interact with the protocol through a streamlined SDK that handles transaction requests, QR generation, and blockchain communication.

<figure><img src="/files/4niCzCJx0wsf4qCnwqqC" alt=""><figcaption></figcaption></figure>

***

**🔐 Wallet SDK Architecture**

Details how wallet applications independently validate and interact with the protocol, signing transactions without ever connecting directly to the merchant.

<figure><img src="/files/nIevsXLP6XuyuBYvbhfx" alt=""><figcaption></figcaption></figure>

***

**🛍️ Merchant Website User Flow**

Outlines the entire payment journey from the merchant side — from QR generation to transaction status monitoring.

<figure><img src="/files/3jKSS6xv3XpRG1V8uU5g" alt=""><figcaption></figcaption></figure>

***

**👤 Customer User Flow**

Depicts the customer journey from scanning a QR code to transaction completion — all without connecting a wallet to a website.

<figure><img src="/files/osmimV0tg0GtkDJTky54" alt=""><figcaption></figcaption></figure>