> For the complete documentation index, see [llms.txt](https://q3labs.gitbook.io/polypay-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://q3labs.gitbook.io/polypay-docs/architecture.md).

# Architecture

### Transaction Lifecycle

#### Phase 1: Setup (One-time)

<figure><img src="/files/X8m0K9JIDlmL6FK7KniJ" alt=""><figcaption></figcaption></figure>

#### Phase 2: Propose & Sign

<figure><img src="/files/2qtScQwH073kFAjYpYgd" alt=""><figcaption></figcaption></figure>

#### Phase 3: Execute

<figure><img src="/files/R2L6OpvP5KjBmDU2pw7G" alt=""><figcaption></figcaption></figure>