Hats Protocol Docs
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  • ๐Ÿ‘‹Welcome to Hats Protocol
  • ๐ŸงขGetting Started with Hats
  • โญQuick Start
  • Using The Hats App
    • ๐Ÿค Essentials For Hat Wearers
    • ๐ŸŽฉCreating My First Hat
    • ๐Ÿง™Admins: Creating, Issuing, and Revising Hats
    • ๐Ÿ‘ฅWhat Hats Do I Need?
    • ๐ŸŒณDrafting, Exporting, and Deploying Tree Changes
    • ๐Ÿ—๏ธSetting a Hat's Basic Properties
    • ๐ŸฅณAdding Wearers
    • ๐Ÿ”Connecting Hats w/ Permissions & Authorities
      • Types of Hat-Powered Authorities
      • Connecting Hats to Token Gates
        • Hats Protocol Contract Addresses
        • Finding a Hat's Token ID
      • Documenting Hat Powers & Responsibilities
    • ๐ŸŒŸRevocation & Eligibility: Requirements for Wearers
    • โšกDeactivating & Reactivating Hats
    • โœ…Making Hats Claimable
    • ๐Ÿ”—Linking Trees Together
    • โ›“๏ธHats Protocol Supported Chains
    • โ“Glossary & FAQ
  • Hats Integrations
    • ๐Ÿ”Permissions & Authorities
      • Coordinape
      • Council Voting Vault
      • Charmverse
      • Discord
        • Collab.Land --> Discord
        • Guild.xyz --> Discord
      • Farcaster Casting Rights
      • Fileverse
      • Google Workspace
      • Hats Account
      • Role-Based Compensation
      • Safe Multisig Signing Authority
      • Telegram
        • Collab.Land --> Telegram
        • Guild.xyz --> Telegram
      • Snapshot: Voting, Weight & Proposal Creation
      • Wonderverse
    • ๐ŸŒŸEligibility & Accountability Criteria
      • Agreement Eligibility
      • Allow-List Eligibility
      • CoLinks Eligibility
      • ERC20 Eligibility
      • ERC721 Eligibility
      • ERC1155 Eligibility
      • Hat-Wearing Eligibility
      • Hats Election Eligibility
      • JokeRace Eligibility
      • Pass-Through (Hat-Based) Eligibility
      • Staking Eligibility
      • Subscription or Membership Fee (Unlock Protocol)
      • Gitcoin Passport Eligibility
    • โšกActivation & Deactivation Criteria
      • Seasonal/ Time-Expiry Toggle
      • Pass-Through (Hat-Based) Toggle
    • ๐Ÿ‘ทHatter Modules
      • Multi Claims Hatter
      • DAOhaus Moloch v3 Membership & Share Allocation
  • For Developers
    • ๐Ÿ‘ทHats Protocol, for Developers
      • Hat Properties
      • Wearing a Hat
      • Hat Admins & Hatter Contracts
      • Hats Trees
      • Hat IDs
      • Linking Hats Trees
      • Eligibility Modules
      • Toggle Modules
      • Hat Mutability and Editing
      • Creating Hats
      • Minting Hats
      • Transfering Hats
      • Renouncing Hats
      • Batch Actions
      • Hat Image URIs
      • ERC1155 Compatibility
      • โ›“๏ธSupported Chains
    • ๐Ÿค–v1 Protocol Spec
      • Hats.sol
      • HatsEvents.sol
      • HatsErrors.sol
      • HatsIdUtilities.sol
      • Interfaces
        • IHats.sol
        • IHatsIdUtilities.sol
        • IHatsEligibility.sol
        • IHatsToggle.sol
    • ๐Ÿ–ฅ๏ธv1 SDK
      • Core
        • Getting Started
        • Onchain Reads
        • Onchain Writes
        • Multicall
        • Claiming Hats
        • Utilities
      • Subgraph
        • Getting Started
        • Fetching Hats
        • Fetching Wearers
        • Fetching Trees
        • Misc
        • Types
      • Hat Details
        • Getting Started
        • Usage
    • ๐Ÿ”ญv1 Subgraphs
    • ๐ŸงฉHats Modules
      • ๐Ÿ”ŒModules SDK
        • Getting Started
        • Get Available Modules
        • Create New Instance/s
        • Composing Modules
        • Interact With Instances
        • Utilities
        • Types
      • โš’๏ธBuilding Hats Modules
        • Inside a Hats Module
          • Immutable Arguments
          • Module Setup
          • Versioning
        • Creating New Modules
        • How Module Instances Are Deployed
        • Modules Registry
        • About Module Chains
    • ๐Ÿ”Hats Signer Gate v2
    • ๐Ÿ‘’Hats Signer Gate SDK
      • Getting Started
      • Creating New Instances
      • Hats Signer Gate
      • Multi Hats Signer Gate
      • HSG & MHSG Handlers
    • ๐Ÿ’ผHats Account SDK
      • 1 of N Hats Account
        • Getting Started
        • Creating New Instances
        • Executing From An Instance
        • Constants
        • Types
    • ๐ŸŒHats Security Audits
  • Legal
    • Terms
      • Terms of Service
      • Acceptable Use
      • Privacy Policy
      • Cookie Policy
      • Attribution
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  1. For Developers
  2. Hats Protocol, for Developers

Creating Hats

The creator of a hat must be its admin. In other words, the admin of a hat must be the msg.sender of the Hats.createHat function call. Though remember, by delegating its authority to a hatter contract, an admin can enable eligible others to create Hats based on whatever logic it desires.

Creating a Top Hat (a hat that serves as its own admin) requires a special function mintTophat, which creates a new hat, sets that hat as its own admin, and then mints its token to a _target. Any address wanting to create a hat that is not already wearing an admin hat of some kind must first create a Top Hat with itself as the wearer.

Batch Creation

In some scenarios, a DAO may want to create many hats at once -- including an entire hat tree -- at once. This is particularly useful when setting up an initial structure for a DAO or working group (e.g., from a hats template) or when forking an existing Hats structure from a template.

Enabling this latter forking/exit scenario is an important protection for hat wearers against potential abuse of power by their DAO.

To create a batch of hats, a DAO can call the Hats.batchCreateHats() function. This function takes arrays as its arguments, from which it constructs multiple hats. As long as each of these hats is part of the same tree of hats โ€” i.e., they either have the same existing Hat or any of the newly created hats as admin(s) โ€” they can all be created together.

PreviousHat Mutability and EditingNextMinting Hats

Last updated 1 year ago

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