Overview

Vault Infrastructure Overview

The PiggyBank vault infrastructure is a strategy-agnostic system for managing RWA assets on Solana. It allows vault creation with any underlying asset and provides liquid positions through tokenized shares.

Key Features

The infrastructure supports both Legacy and Token 2022 standards. Each vault operates independently with its own epoch lifecycle. Positions are represented by liquid tokens that maintain the same standard and decimals as the underlying asset.

Design Principles

The system separates vault infrastructure from strategy implementation. This allows:

• Any admin to create vaults for their specific strategy

• Users to maintain liquid positions they can transfer or trade

• Strategies to evolve without infrastructure changes

Token Standards

The program compiles into two versions using compilation flags:

• Legacy version for standard SPL tokens

• Token 2022 version for RWAs requiring extensions

Token 2022 vaults support:

• Scaled UI Amount for stock splits and distributions

• Transfer Hook for compliance and access control

Lifecycle Management

Each vault has three state accounts tracking:

• Vault configuration and totals

• Epoch-specific data

• Individual redemption records

The epoch system ensures orderly processing of deposits and redemptions while the admin manages the underlying assets according to their strategy.