# Core Concepts

Understanding the fundamental concepts of Arweave and the Permaweb is essential for building robust decentralized applications.

# Transaction Fundamentals

• Transactions - How data is stored and transactions work
  • Posting Transactions
  • Bundles
  • Transaction Types

# Core Architecture

• Manifests & Path Resolution - How files and applications are organized
• Querying Fundamentals - How to find and retrieve data
• Wallets & Keys - Identity and authentication
• Gateways & Access - How to access the network

# Advanced Topics

• ArNS Introduction - Decentralized naming system
• Vouch Protocol - Content moderation and reputation

# File System Specifications

• ArFS Specification - Arweave File System standard
  • Data Model
  • Entity Types
  • Content Types
  • Privacy
  • Schema Diagrams